Prof. Ranjith Dissanayake

Senior Professor


Senior Professor, Dept. of Civil Engineering

Director, OTS, HETC Project, University of Peradeniya

Office Address:

Department of Civil Engineering,
University of Peradeniya,
Peradeniya,20400,
Sri Lanka.

Email Personal: ranjith@fulbrightmail.org, (ranjith@civil.pdn.ac.lk)

Telephone : +94-81-2393581, +94-77-7809895


Senior Professor in Civil Engineering, University of Peradeniya, Sri Lanka. Prof. Dissanayake was a Fulbright Scholar in 2008 Columbia University, USA and Endeavour Fellow in 2008 Monash University Australia, JASSO Research Fellowship Ehime University, Japan in 2007. He was awarded Young Scientist Award 2007 for Excellence in Scientific Research by National Science and Technology Commission of Sri Lanka and Overseas Prize for the paper published in Institution of Civil Engineers, London, UK, 2007. He has published over 140 papers. He was awarded Australia Alumni Excellence Award 2012. He has chaired Seven international conferences on Mitigation of the Risk of Natural Hazards (ICMRNR) of IIIRR in 2007, Sustainable Built Environment (ICSBE) in 2010, Structural Engineering, Construction and Management (ICSECM) in 2011, Sustainable Built Environment (ICSBE 2012) in 2012, Structural Engineering and Construction Management (ICSECM2013), International Conference on Sustainable Built Environment which will be held at Earl’s Regency Kandy Sri Lanka in 2014, which were held in Sri Lanka.

He is the Chairman of the Green Building Council of Sri Lanka (GBCSL) and also a foundering member of it.

He is Chairing of the 8th International Conference on Structural Engineering Construction Management which will be held at Earl’s Regency Kandy Sri Lanka in 2017 (www.icsecm.org).

PhD : Ehime University, Matsuyama, Japan (1998)

MEng : Ehime University, Matsuyama, Japan (1995)

BScEng : University of Peradeniya, Sri Lanka (1991)

Fellow, the Institution of Engineers, Sri Lanka

Fellow, the International Institute for infrastructure Renewal and Reconstruction

Member, the Society of Structural Engineers, Sri Lanka

Member, Green Building Council of Sri Lanka

Chartered Engineer

Disaster Mitigation; Evaluation and Seismic Retrofitting of Structures.

Structural Health Monitoring of Structures.

Structural Optimization.

Sustainable Built Environment.

Senior Professor of Civil Engineering, Department of Civil Engineering, University of Peradeniya, Peradeniya, Sri Lanka.

Head, Civil Engineering, University of Peradeniya, Sri Lanka (2014 – 2017 Jan)

Director, Operations Technical Secretariat, HETC Project, University of Peradeniya, Sri Lanka

Director, EDC, University of Peradeniya, Peradeniya, Sri Lanka (2007 – 2007)

Chairman, Lego international (Pvt.) Ltd, Sri Lanka

Executive Vice Chairman, Green Building Council Sri Lanka

Chairman, Training and Education Green Building Council Sri Lanka

President, Engineers Without Boarders Sri Lanka; Chairman, International Centre for Sustainable Built Environment

Research Fellow, Vanderplaats Research & Development, Colorado, USA (2003–2003)

Director, Engineering Design and Consultancy Centre, University of Peradeniya, Peradeniya, Sri Lanka (2001–2002)

Senior Lecturer, Civil Engineering, University of Peradeniya, Peradeniya, Sri Lanka (1999–2010)

Research Fellow, University of Ehime, Matsuyama, Japan (1998–1998)

Teaching Assistant, University of Ehime, Japan (1995-1998)

Assistant Engineer, University of Peradeniya, Sri Lanka (1991-1992)

2009 : Endeavor Research Fellow, Monash University, Melbourne, Australia

2008 : Fulbright Fellow, Dept. of Civil and Engineering Mechanics, Columbia University, New York, USA

2007 : JSPS Research Fellow, Ehime University, Japan

2003 : Research Fellow, Vanderplaats Research & Development, Colorado, USA

1998 : Research Fellow, University of Ehime, Matsuyama, Japan

Fellow, Institution of Engineers, Sri Lanka (IESL)

Fellow, the International Institute for Infrastructure

Renewal and Reconstruction (IIIRR)

Member, the Society of Structural Engineers Sri Lanka (SSE)

Member, Green Building Council of Sri Lanka (GBCSL)

Member, Toastmasters International

Member, Engineers Without Boarder International

Evaluation of shear strength parameters of rail track ballast in Sri Lanka, D.M.A.G.B. Dissanayake, L. C. Kurukulasuriya and P. B. R. Dissanayake, Journal of The National Science Foundation of Sri Lanka, 2016, 44 (1): 61-67

Chaminda Bandara and Ranjith Dissanayake (2016), Retrofitting of Damaged Bridges – the Sustainable Solution, International Journal of Urban Sciences, Vol. 2016, DOI:10.1080/12265934.2016.1138877.

Chaminda S. Bandara, Sudath C. Siriwardane, Udaya I. Dissanayake and Ranjith Dissanayake (2016), Hardness Based Non-Destructive Method For Developing Location Specific S-N Curves For Fatigue Life Evaluation, Journal of Civil Engineering and Architecture, Vol. 10 (2), pp. 183-191.

Chaminda S. Bandara, Sudath C. Siriwardane, Udaya I. Dissanayake and Ranjith Dissanayake (2016), Full range S-N curves for fatigue life evaluation of steels using hardness measurements, International Journal of Fatigue, Vol. 82, pp. 325-331.

G. Dissanayake, L. C. Kurukulasuriya and P. B. R. Dissanayake, Effect of rail track ballast degradation on shear strength, International conference on Geotechnical Engineering, Sri Lanka, 2015, pp. 641-644.

G. Dissanayake, L. C. Kurukulasuriya and P. B. R. Dissanayake, Effect of fouling on shear strength characteristics of rail track ballast, Proceedings of the 109th Annual Sessions, Institution of Engineers Sri Lanka, 2015, Vol. I (B), pp. 53-60.

G. Dissanayake, L. C. Kurukulasuriya and P. B. R. Dissanayake, Effect of gradation on vertical deformation and bearing index of rail track ballast, Proceedings of the 3rd International Symposium on Advances in Civil & Environmental Engineering Practices for Sustainable Development (ACEPS), Sri Lanka, 9th March 2015, pp. 322-327.

G. Dissanayake, L. C. Kurukulasuriya and P. B. R. Dissanayake, Site investigation of rail track modulus of ballasted rail track, Proceedings of the 3rd International Symposium on Advances in Civil & Environmental Engineering Practices for Sustainable Development (ACEPS), Sri Lanka, 9th March 2015, pp. 328-333.

Chaminda S. Bandara, Sudath C. Siriwardan, Udaya I. Dissanayake, Ranjith Dissanayake, Full range S–N curves for fatigue life evaluation of steels using hardness measurements (ELSEVIER 2015).

Gihan Dissanayake, L.C. Kurukulasuriya and P.B.R.Dissanayake, Site Investigation on Rail Track Modulus of Ballasted Rail Track (ACEPS_1 2015).

Gihan Dissanayake, L.C. Kurukulasuriya and P.B.R.Dissanayake, EFFECT OF GRADATION ON VERTICAL DEFORMATION AND BEARING INDEX OF RAIL TRACK BALLAST (ACEPS_2 2015).

Gihan Dissanayake,L. C. Kurukulasuriya and P. B. R. Dissanayake, Effect of Rail Track Ballast Degradation on Shear Strength(ICGE 2015).

. Wijesundara, H.N. Seneviratne & P.B.R. Dissanayake, A numerical analysis of the influence of bedrock profile on the seismic wave propagation through Sri Lanka, (ICGE 2015).

G. Dissanayake, L. C. Kurukulasuriya and P. B. R. Dissanayake, Grading effect on behavior of railway track ballast, Proceedings of the Peradeniya International Research Sessions, 4th & 5th July 2014, Sri Lanka, Vol 18, pp. 145.

G. Dissanayake, L. C. Kurukulasuriya and P. B. R. Dissanayake, Direct shear testing of rail track ballast using a large scale direct shear apparatus, Special session on sustainable design & construction, Proceedings of the 5th International Conference on Sustainable Built Environment, Sri Lanka, 12th to 15th December 2014, pp. 109-112.

R. M. S. Dananjaya, P. B. R. Dissanayake, and K. G. H. C. N. Seneviratne & K. K. Wijesundara, Simulation of Bedrock Motion to Obtain PGA Values, 10th International Conference of the International Institute for Infrastructure Resilience and Reconstruction (I3R2) 20–22 May 2014 , Purdue University, West Lafayette, Indiana, USA.

R.M.S. Dananjaya, K.K. Wijesundara and P.B.R. Dissanayake, NUMERICAL SIMULATION OF BEDROCK MOTION IN SRI LANKA, Proceedings of the Peradeniya Univ. International Research Sessions, Sri Lanka, Vol. 18, 4th & 5thJuly, 2014, Abstract No: 684.

Chaminda S. Bandara, Sudath C. Siriwardane, Udaya I. Dissanayake and Ranjith Dissanayake (2014), Fatigue failure predictions for steels in the very high cycle region – A review and recommendations, Engineering Failure Analysis, Vol. 45, pp. 421 – 435.

Chaminda S. Bandara and Ranjith Dissanayake, 2014, Blast Effects on Reinforced Concrete Cantilever Slabs, LAMBERT, Academic Publishing.

Chaminda S. Bandara, Udaya I. Dissanayake and Ranjith Dissanayake (2014), Corrosion effects on fatigue life of steel structures, Proceedings of the International Conference on Sustainable Built Environment ICSBE 2014, Kandy, Sri Lanka, 14 – 15 December 2014.

Chaminda S. Bandara, Udaya I. Dissanayake and Ranjith Dissanayake (2014), Hardness based nondestructive method for developing location specific S-N curves for fatigue life evaluation, Proceedings of the International Conference on Fatigue Damage Assessment of Structural Materials ICFDSM X, Hyannis, USA, 21- 26 September 2014.

Chaminda S. Bandara, Udaya I. Dissanayake and Ranjith Dissanayake (2014), Stress concentrations of diagonal truss member - main girder joints: An experimental study, Proceedings of the Peradeniya University Research Sessions iPURSE 2013, University of Peradeniya, Peradeniya, Sri Lanka, 4 – 5 July 2014.

G. Dissanayake, L.C. Kurukulasuriya and P.B.R.Dissanayake, Direct Shear Testing of Rail Track Ballast Using a Large Scale Direct Shear Apparatus (ICSBE 2014).

Gihan Dissanayake, L.C.Kurukulasuriya and P.B.R.Dissanayake, GRADING EFFECT ON BEHAVIOUR OF RAILWAY TRACK BALLAST (iPURSE 2014).

K.T.S. Karunanayake, L.W. Galagedara and P.B.R. Dissanayake “Ground Penetrating Radar Wave Behavior under Different Corrosion Levels of Concrete”, Proceedings of the 15th International Conference on Ground Penetrating Radar June 30 - July 4, 2014, (ISBN: 978-1-4799-6789-6, IEEE Part Number: CFP14538-ART, Publication date: expected in October 2014, IEEE Conference Record Number: 35163) Editors: SébastienLambot, Antonis Giannopoulos, Lara Pajewski, Frédéric André, Evert Slob, and Christophe Craeye.

K.T.S. Karunanayake, L.W. Galagedara and P.B.R. Dissanayake “Mapping the Internal Element of a Water Reservoir and Comparing with a Laboratory Concrete Model and GprMax2D Model”, Proceedings of the Peradeniya University International Research Session 2014 (iPURSe-2014) 4th – 5th July, 2014, Volume 18 (ISSN 1391-4111, ISBN 978-955-589-180-6) Page 147.

K.T.S. Karunanayake, L.W. Galagedara and P.B.R. Dissanayake “International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development" (ACEPS 2013), Symposium Proceedings of the ACEPS 2013. (ISSN 2279-1329) Page 82-88.

Chaminda S, Bandara and P.B.R. Dissanayake, The Impact of the GigacycleFatigue on Steel Bridges, Key Engineering Materials, July 2013, Vol. 569-570, pp. 246-253.

Chaminda S. Bandara, Sudath C. Siriwardane, Udaya.I. Dissanayake and P.B.R. Dissanayake, Fatigue Strength Prediction Formulae for Steels and Alloys in the Gigacycle Regime, International Journal of Materials, Mechanics and Manufacturing, Aug. 2013, Vol. 1 (3), pp. 256-260.

Chaminda S. Bandara, Sudath C. Siriwardane, Udaya I. Dissanayake and P.B.R. Dissanayake, Analysis of Code Provided S-N Curves, Experimental S-N Curves and Important Considerations for Fatigue Life Evaluation of Existing Steel Bridges, ICTAD Journal 2013, Vol. 11, pp. 10-19.

K.T.S. Karunanayake, L.W. Galagedara and P.B.R. Dissanayake “Behaviour of Ground Penetrating Radar with Changing Material Properties in Concrete”, Proceedings of the Peradeniya University Research Session 2012 (PURSe-2012) July 4, 2012 (ISSN: 1391- 4111, ISBN: 978-955-589-164-6) Page 59.

C.S. Bandara, U.I. Dissanayake and P.B.R.Dissanayake, Stress – Life curves for the gigacycle fatigue regime,in Peradeniya University Research Sessions (PURSE 2012), University of Peradeniya, 04th July 2013.

K.T.S. Karunanayake, L.W. Galagedara and P.B.R. Dissanayake, Behavior of ground penetration radar with changing material properties in concrete, in Peradeniya University Research Sessions (PURSE 2012), University of Peradeniya, 04th July 2013.

C.S. Bandara, S.C. Siriwardane, U.I. Dissanayake and P.B.R. Dissanayake, Simplified formula for developing stress life S-N curves for steels in the high and gigacycle regime for various stress ratios,in the 2ndInternational Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS), University of Ruhuna, Galle, Sri Lanka, 27th September 2013.

K.T.S. Karunanayake, L.W. Galagedara, P.B.R. Dissanayake and R.M.S. Dananjaya, Map internal elements in concrete slab and compare with GPRmax model, in the 2ndInternational Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS), University of Ruhuna, Galle, Sri Lanka, 27th September 2013.

Chaminda Senarathna Bandara, SudathChaminda Siriwardane, Udaya Dissanayake and Ranjith Dissanayake, Developing a full range S-N curve and estimating cumulative fatigue damage of steel elements, in the 23rdInternational Workshop (Conference) on Computational Mechanics of Materials (IWCMM23), National University of Singapore, Singapore, 2 – 4 October 2013.

Chaminda S. Bandara, Sudath C. Siriwardane, Udaya I. Dissanayake and Ranjith Dissanayake, Hardness based non-destructive method for developing location specific S-N curves for fatigue life evaluation, in the 4th International Conference on Structural Engineering and Construction Management (ICSECM13), Kandy, Sri Lanka, 13th~15th December 2013.

Behavior of Cantilever Slabs in a Blast Environment by A.M.A.C.S. Bandara & P.B.R. Dissanayake, Journal of Civil Engineering and Architecture, Nov. 2012, Volume 6, No. 11 (Serial No.60), ISSN 1934-7359, USA (accepted / in press).

P.B.R. Dissanayake and A.M.A.C.S. Bandara, Retrofitting of Damaged Bridges – The Sustainable Solution, Annual Sessions, Centre, Central Province, Institution of Engineers Sri Lanka, Nov. 2012, pp. 15-21.

Fatigue Strength Prediction Formulae for Steels and Alloys in the Gigacycle Regime by Chaminda S. Bandara, Sudath C. Siriwardane, Udaya I. Dissanayake & P.B.R. Dissanayake in the International lournal of Materials, Mechanics and Manufacturing (IJMMM ) (accepted/in press).

J.M.R.S. Appuhamy, M. Ohga, P. Chun and P.B.R. Dissanayake [2012], Consequence of Corrosion on Dynamic Behaviour of Steel Bridge Members, International Journal of Modern Engineering Research (IJMER), Vol.2, No.1, pp. 281-288.

J.M.R.S. Appuhamy, M. Ohga, T. Kaita, P. Chun and P.B.R. Dissanayake [2012], Development of an Efficient Maintenance Strategy for Corroded Steel Bridge Infrastructures, Journal of Bridge Engineering (ASCE), Accepted paper.

J.M.R.S. Appuhamy, M. Ohga, T. Kaita, P. Chun, K. Fujii and P.B.R. Dissanayake [2012], Influence of Corrosion Damage on Prediction of Residual Strength Capacities - An Experimental Analysis, Journal of Solid Mechanics and Materials Engineering (JSME), Accepted paper

J.M.R.S. Appuhamy, M. Ohga, P. Chun, S. Furukawa and P.B.R. Dissanayake [2012], Estimation of Seismic Behaviour of Corroded Steel Bridge Plates, 18th Congress of International Association for Bridge and Structural Engineering (18th IABSE), Seoul, Korea, Accepted paper

J.M.R.S. Appuhamy, M. Ohga, P. Chun, S. Furukawa and P.B.R. Dissanayake [2012], Enhanced Analytical Method of Predicting Residual Strength Capacities of Corroded Steel Bridge Plates, 6th International Conference on Bridge Maintenance, Safety and Management (IABMAS-2012), Como, Italy, Accepted paper

J.M.R.S. Appuhamy, M. Ohga, P.B.R. Dissanayake and K.K. Wijesundara [2012], Development of Brisk Finite Element Analytical Method of Predicting Tensile Strength Reduction due to Corrosion, 2nd SAITM Research Symposium on Engineering Advancements (RSEA-2012), Malabe, Sri Lanka.

Reconstruction vs Retrofitting of a Bridge for Sustainability by P.B.R. Dissanayake,A.M.A.C.S.Bandara& R.M.S.U.P. Rathnayake in the International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS), University of Ruhuna, Galle, Sri Lanka, 19th March 2012.

Sustainable Solution for Retrofitting of Bridges Damaged by Floods by A.M.A.C.S. Bandara, R.M.S.U.P. Rathnayaka, W.A.I.P. Wijesooriya & P.B.R. Dissanayake in the 8th Annual Conference of International Institute for Infrastructure Renewal and Reconstruction (IIIRR), Kumamoto University, Japan, 23-24th August 2012.

A New Approach for Predicting the Fatigue Strength of Steels and Aluminium Alloys in High and Giga Cycle Regimes by A.M.A.C.S. Bandara, P.B.R. Dissanayake, U.I. Dissanayake & S.A.S.C. Siriwardane in the 2nd International Conference on Sustainable Built Environment (ICSBE), University of Peradeniya, Earl’s Regency Hotel, Kandy, Sri Lanka, 14-16th December 2012 (ISBN 9 78955 495806).

Future Life Evaluation of Existing Steel Bridges by A.M.A.C.S. Bandara, R.M.S.U.P. Rathnayaka, A.M.C.T.K. Attanayake & P.B.R. Dissanayake in the 2nd International Conference on Sustainable Built Environment (ICSBE), University of Peradeniya, Earl’s Regency Hotel, Kandy, Sri Lanka, 14-16th December 2012 (ISBN 9 78955 495806).

Mapping the internal elements and the damages using Ground Penetrating Radar by K.T.S. Karunanayake, P.B.R. Dissanayake & L.W. Galagedara Conference Proceedings, 2nd International Conference on Sustainable Built Environment 14th, 15th and 16th December 2012, (ISBN 9 78955 495806).

Fatigue Strength Prediction Formulae for Steels and Alloys in the Gigacycle Regime by Chaminda S. Bandara, Sudath C. Siriwardane, Udaya I. Dissanayake & P.B.R. Dissanayake in the International Conference on Nano and Materials Engineering- ICNME 2013 (accepted) to be held on 8-9th April, 2013, Bangkok, Thailand.

P.A.K. Karunananda, M. Ohga. P.B.R. Dissanayake and S.A.S.C. Siriwardane (2012/06), “Fatigue life prediction of steel bridges for extreme loading using a new damage indicator”, Journal of Solid Mechanics and Materials Engineering, Japanese Society of Mechanical Engineers, (In Press).

Kamal Karunananda, Mitao Ohga, P.B.R. Dissanayake, Sudath Siriwardane and Pang-jo Chun (2012). “New combined high and low-cycle fatigue model to estimate life of steel bridges considering interaction of high and low amplitudes loadings”, Advances in Structural Engineering, Multi-Science Publication, Vol. 15(2), pp. 313-328, (In-Press).

K. Karunananda, M. Ohga, P.B.R. Dissanayake and S. Siriwardane (2011). “Effect of high amplitude loading on fatigue life prediction of steel bridges”, Procedia Engineering, Elsevier Publication, Vol. 14, pp. 521-528.

P.A.K. Karunananda, M. Ohga and P.B.R. Dissanayake (2011). “Interval reliability based condition assessment of bridges”, Advances in Structural Engineering, Multi-Science Publication, Vol. 14(3), pp. 527-540.

J.M.R.S. Appuhamy, M. Ohga, T. Kaita, K. Fujii and P.B.R. Dissanayake [2011], Development of Analytical Method for Predicting Residual Mechanical Properties of Corroded Steel Plates, International Journal of Corrosion (IJOC), Vol.2011, Doi:10.1155/2011/385083.

J.M.R.S. Appuhamy, M. Ohga, T. Kaita and P.B.R. Dissanayake [2011], Reduction of Ultimate Strength due to Corrosion - A Finite Element Computational Method, International Journal of Engineering (IJE), Vol.5, No.2, pp. 194-207.

J.M.R.S. Appuhamy, M. Ohga, T. Kaita, P. Chun and P.B.R. Dissanayake [2011], Estimation of Corrosion-induced Strength Deterioration of Steel Bridge Plates – An Analytical Method, Annual Research Journal of SLSAJ, Vol.11, pp. 19-25.

P.A.K. Karunananda, M. Ohga, P.B.R. Dissanayake, S.A.S.C. Siriwardane and A.M.N.D. Adasooriya, “Fatigue life estimation of steel bridges for extreme loading using a new damage indicator”, International Conference on Advanced Technology in Experimental Mechanics (ATEM’11), Kobe, Japan, 19-21 September 2011.

M. Ohga, K. Karunananda, P.B.R. Dissanayake and S.A.S.C. Siriwardane, “Effect of high amplitude loading on fatigue life prediction of steel bridges”, The Twelfth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-12), Hong Kong, China, 26-28 January 2011.

J.M.R.S. Appuhamy, M. Ohga, P. Chun, S. Furukawa and P.B.R. Dissanayake [2011], Effects of Corrosion on Degradation of Tensile Strength of Steel Bridge Members, International Conference on Structural Engineering, Construction and Management (ICSECM-2011), Peradeniya, Sri Lanka, Paper SEC-11-91.

J.M.R.S. Appuhamy, M. Ohga, T. Kaita, P. Chun, K. Fujii and P.B.R. Dissanayake [2011], Experimental Investigation of the Influence of Corrosion Damage on Prediction of Residual Strength Capacities, International Conference on Advanced Technology in Experimental Mechanics (ATEM-11), Kobe, Japan, Paper OS15F073.

M. Ohga, J.M.R.S. Appuhamy, T. Kaita, P. Chun and P.B.R. Dissanayake [2011], Degradation of Tensile Strength with the Severity of Corrosion Condition, The 2011 World Congress on Advances in Structural Engineering and Mechanics (ASEM11plus), Seoul, Korea, pp. 5280-5297.

Kamal Karunananda, Mitao Ohga, P.B.R. Dissanayake, Sudath Siriwardane, “A Combined High and Low Cycle Fatigue Model to Estimate Life of Steel Bridges”, Journal of Engineering and Technology Research, 2010, Vol. 2(8), pp. 144-160.

S.A.S.C. Siriwardane, M. Ohga, P.B.R. Dissanayake, T. Kaita, “Structural Appraisal-based Different Approach to Estimate the Remaining Fatigue Life of Railway Bridges”, International Journal of Structural Health Monitoring, Vol 9(4), July 2010, pp 323--339.

M. Ohga, K. Karunananda, P.B.R. Dissanayake, A.M.N.D. Adasooriya, Fatigue life prediction of bridges considering the effect of multiaxial stresses, International Conference on Sustainable Built Environment, Kandy, Sri Lanka, 12-14 December 2010.

M. Ohga, J.M.R.S. Appuhamy, T. Kaita, K. Fujii and P.B.R. Dissanayake, Evaluation of Tensile Strength Deterioration of Steel Bridge Plates due to Corrosion, International Conference on Sustainable Built Environment, Kandy, Sri Lanka, 12-14 December 2010.

M. Ohga, J.M.R.S. Appuhamy, T. Kaita, K. Fujii and P.B.R. Dissanayake, Numerical Study on Remaining Strength Prediction of Corroded Steel Bridge Plates, International Conference on Sustainable Built Environment, Kandy, Sri Lanka, 12-14 December 2010.

J.M.R.S. Appuhamy, T. Kaita, M. Ohga, K. Fujii and P.B.R. Dissanayake, Numerical Investigation of Corrosion Effects on Ductile Fracture and Ultimate Strength, Annual Research Journal of Sri Lankan Student Association in Japan, Tokyo, 13 November 2010.

J.M.R.S. Appuhamy, T. Kaita, M. Ohga, K. Fujii and P.B.R. Dissanayake, Experimental and Numerical Investigation of Residual Strength of Corroded Steel Plates in Tensile Force, International Symposium on Society for Social Management Systems 2010 (SSMS2010), Kochi, Japan, March 5-8, 2010.

M. Ohga, K. Karunananda, P.B.R. Dissanayake and S.A.S.C. Siriwardane, “Combined high and low cycle fatigue model for prediction of steel bridge lives”, International Conference on Sustainable Built Environments (ICSBE-2010), Kandy, Sri Lanka, 12-14 December 2010, pp. 505-512.

P.A.K. Karunananda, M. Ohga, P.B.R. Dissanayake and S.A.S.C. Siriwardane, “Fatigue life estimation of bridges considering the interaction of high and low amplitude loadings”, Annual Research Journal of Sri Lankan Students’ Association in Japan, Tokyo, Japan, November 2010, pp. 13-18.

P.A.K. Karunananda, M. Ohga, P.B.R. Dissanayake and S.A.S.C. Siriwardane, “Fatigue model to predict remaining life of steel bridges considering the effect of earthquakes”, Pacific Structural Steel Conference 2010, Beijing, China, 19-22 October 2010, pp. 1003-1010.

Kamal Karunananda, Mitao Ohga, P.B.R. Dissanayake and Kazuhiro Taniwaki, “Fatigue life prediction of bridges under extreme loading”, International Symposium on Society for Social Management Systems 2010 (SSMS2010), Kochi, Japan, 5-8 March 2010.

Kamal Karunananda, Mitao Ohga, Tatsumasa Kaita and P.B.R. Dissanayake (2010). “Condition assessment of multispan masonry arch bridges”, Bridge Structures: Assessment, Design and Construction, IOS Press, Vol. 6(3-4), pp. 95-106.

P.B.R. Dissanayake and K. Karunananda, “Fatigue analysis of steel bridges using interval reliability”, University Research Sessions, University of Peradeniya, Peradeniya, Sri Lanka, December 2009.

P.B.R. Dissanayake, K. Karunananda, Fatigue analysis of steel bridges using interval reliability, Proceedings of the University Research Sessions, University of Peradeniya, Peradeniya, 03 December 2009.

Sudath Chaminda Siriwardane, Mitao Ohga, P.B.R. Dissanayake, Tatsumasa Kaita, A Simplified Method to Predict the Ultra-low Cycle Fatigue Failure of Metal Structures, 5th International Symposium on Steel Structures, Seoul, Korea, ISSS’09, March 12-13, 2009.

Kamal Karunananda, Mitao Ohga, P.B.R. Dissanayakee, Kazuhiro Taniwaki, Safety Assessment of Steel Truss Bridges Under Corrosion Attack, 5th International Symposium on Steel Structures, Seoul, Korea, ISSS’09, March 12-13, 2009.

Sudath Chaminda Siriwardane, Mitao Ohga, P.B.R. Dissanayake, Tatsumasa Kaita, Remaining Service Life based Maintenance Strategy for Railway Bridges, International symposium on society for social management systems 2009 (SSMS2009), Kochi, Japan, March 5-8, 2009.

J.M.R.S. Appuhamy, M. Ohga, T. Kaita, S. Tinti, P.B.R. Dissanayake, Importance of Numerical Modelling in Tsunami Disaster Prevention, International symposium on society for social management systems 2009 (SSMS2009), Kochi, Japan, March 5-8, 2009.

J.M.R.S. Appuhamy, T. Kaita, M. Ohga and P.B.R. Dissanayake, A Simple and Comprehensive Estimating Method of Remaining Tensile Strength of Corroded Steel Bridge Plates, Annual Research Journal of Sri Lankan Student Association in Japan, Tokyo, 08 November 2009.

Kamal Karunananda, Mitao Ohga and P.B.R. Dissanayake, “Condition assessment of bridges by interval reliability”, Annual Research Journal of Sri Lankan Students’ Association in Japan, Tokyo, Japan, November 2009, pp. 11-14.

Kamal Karunananda, Mitao Ohga, P.B.R. Dissanayake and Kazuhiro Taniwaki, “Safety assessment of steel truss bridges under corrosion attack”, 5th International Symposium on Steel Structures (ISSS’09), Seoul, Korea, 12-13 March 2009, pp. 150-155.

Mitao Ohga, Kamal Karunananda, P.B.R. Dissanayake and Kazuhiro Taniwaki, “Maintenance management of multispan masonry arch bridges by reliability concept”, International Symposium on Society for Social Management Systems 2009 (SSMS2009), Kochi, Japan, 5-8 March 2009.

Sudath Siriwardane, Mitao Ohga, Tatsumasa Kaita, P.B.R. Dissanayake, “Grain-scale, Plasticity Based Fatigue Model to Estimate Fatigue Life of Steel Bridge Connections”, Journal of Constructional Steel Research, 65(10-11), 2008, pp 1942-1953.

P.B.R. Dissanayake, “ Prediction of Structural performance of Bridges under Earthquake Risk”, Proceeding of conference on A Dynamic Approach to the Mitigation of Natural Disasters, University of Calgary, April 2008.

S. C. Siriwardane, M. Ohga, P.B.R. Dissanayake, K. Taniwaki “ Application of New Damage Indicator-based Sequential Law for Remaining Fatigue Life Estimation of Railway Bridges”, Journal of Constructional Steel Research, 64(2), 2008, pp 228-237.

P.B.R. Dissanayake, P.A.K. Karunananda, “Remaining Service Life Prediction of Reverted Wrought Iron Railway Bridges using Reliability Approach”, Journal of the National Science Foundation of Sri Lanka, 36(2), 2008, pp 151-156.

M. Ohga, S.C. Siriwardane, P.B.R. Dissanayake, T. Kaita, Remaining Fatigue Life estimation of a Riveted Bridge Connection Using the New Damage Indicator-based Sequential Law, The Eleventh East Asia - Pacific Conference on Structural Engineering and Construction (EASEC-11), Taipei, Taiwan, 19 - 21 November 2008.

Mitao Ohga, Kamal Karunananda, P.B.R. Dissanayake, Kaita Tatsumasa, Safety Assessment of Reinforced Concrete Bridges under Corrosion Attack, The Eleventh East Asia - Pacific Conference on Structural Engineering and Construction (EASEC-11), Taipei, Taiwan, 19 - 21 November 2008.

S.A.S.C. Siriwardane, M. Ohga, T. Kaita, P.B.R. Dissanayake, Mesoscopic Plastic Strain Based New Fatigue Model and Its Application to a Riveted bridge Connection, International conference on continuum mechanics, nanoscience and nanotechnology, Peradeniya, Sri Lanka, 26-28 September 2008.

A.M.N.D. Adasooriya, S.A.S.C. Siriwardane, M. Ohga, T. Kaita, P.B.R. Dissanayake, A Simplified Fracture Initiation Criterion for Ultra-Low Cycle Fatigue, International conference on continuum mechanics, nanoscience and nanotechnology, Peradeniya, Sri Lanka, 26-28 September 2008.

Mitao Ohga, Kamal Karunananda, P.B.R. Dissanayake, Kaita Tatsumasa, Application of Interval Reliability in Bridge Assessment, International conference on continuum mechanics, nanoscience and nanotechnology, Peradeniya, Sri Lanka, 26-28 September 2008.

J.M.Ruwan S. Appuhamy, M. Ohga, S. Tinti and P.B.R. Dissanayake, Numerical Modelling of December 2004 Sumatra-Andaman Tsunami and Possible Future Tsunamis, Annual Research Journal of Sri Lankan Student Association in Japan, Tokyo, 16 November 2008.

P.B.R. Dissanayake and P.A.K. Karunananda (2008). “Reliability index for structural health monitoring of aging bridges”, Structural Health Monitoring, SAGE Publication, Vol. 7(2), pp. 175-183.

P.A.K. Karunananda, M. Ohga and P.B.R. Dissanayake, “Assessment of load carrying capacity of masonry arch bridges”, Annual Research Journal of Sri Lankan Students’ Association in Japan, Tokyo, Japan, November 2008, pp. 13-17.

P.A.K. Karunananda, M. Ohga, K. Taniwaki and P.B.R. Dissanayake, “Application of interval reliability in bridge assessment”, International Conference on Advances in Continuum Mechanics, Materials Science, Nanoscience and Nanotechnology, Peradeniya, Sri Lanka, 26-27 September 2008, pp. 307-315.

Mitao Ohga, Kamal Karunananda, P.B.R. Dissanayake and Kaita Tatsumasa, “Reliability based assessment of multi span masonry arch bridges”, The 4th International Conference on Advances in Structural Engineering and Mechanics (ASEM’08), Jeju, Korea, 24-26 May 2008, pp. 3347-3354.

P.B.R. Dissanayake, Mitao Ohga and P.A.K. Karunananda, “Remaining service life prediction of riveted wrought iron railway bridges using system reliability approach”, 4th International Symposium on Steel Structures (ISSS06), Seoul, Korea, 16-18 November 2006, pp. 669-677.

Priyan Dias, P.B.R. Dissanayake, Ravihansa Chandratilake, “Lessons Learned from Tsunami Damage in Sri Lanka”, Proceeding of the Institution of Civil Engineers, May 2006, Vol. 159, pp 74 – 81.

S.A S. C. Siriwardane, Mitao Ohga, P.B.R. Dissanayake, “Comparative Study for Remaining Fatigue Life Estimation of Existing Railway Bridge” The proceedings of the fourth International Symposium on Steel Structures (ISSC-06), 912-921, 2006, Seoul, Korea.

P.B.R. Dissanayake, P.A.K. Karunananda, “System Reliability Modelling of Prestrssed Concrete Bridges in Condition Estimation” The proceedings of the tenth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-10), 165-170, 2006, Bangkok, Thailand.

S. Jothy Kanna, P.B.R. Dissanayake, “Optimum Design of Pre-Stressed Beams Using Available Software”, 2006 Concrete Bridge Conference, May 7-10, 2006, pp 52 – 67

P.B.R. Dissanayake, P.A.K. Karunananda, “Condition Assessment of Reinforced Concrete Deck Bridge under Corrosion Attack” ConcreteLife’06- International RILEM-JCI Seminar on Concrete, 496-501, 2006, Israel.

P.B.R. Dissanayake “Sand and its alternatives in Sri Lanka”, Article published in proceeding of annual session by National Contractors association of Sri Lanka, July 2006.

P.B.R. Dissanayake, “Forensic investigation of failure of structures”, Proceeding of Annual Sessions, 2005/2006, the Institution of Engineers Sri Lanka Central Province Centre, 2006.

P.B.R. Dissanayake, P.A.K. Karunananda, “Towards Reliability based Maintenance Strategy of aging Bridges” Proceeding of 100th Annual Sessions of Institution of Engineers, Sri Lanka, 24th October 2006.

P.B.R. Dissanayake, S. Jothy Kannan, “Optimum Design of Bridge Pier” Proceedings of the Annual Research Sessions, University of Peradeniya, Sri Lanka, 71, Vol. 11, 2006.

W.S.K. Ranatunge, J.M.S.D. Jayasinghe, V.L. Udugamusuriya, P.B.R. Dissanayake, “Structural Performance of Building Against Blast Loading” Proceedings of the Annual Research Sessions, University of Peradeniya, Sri Lanka, 73, Vol. 11, 2006.

W.W. Bandara, R.M.K.I.A. Dahanayaka, U.P.K.W. Pathirana, P.B.R. Dissanayake, “Proposed Earthquake Resistant Reinforcement Detailing for Building in Sri Lanka” Proceedings of the Annual Research Sessions, University of Peradeniya, Sri Lanka, 74, Vol. 11, 2006.

P.A.K. Karunananda, P.B.R. Dissanayake, “System Reliability modelling of reinforced concrete deck bridges under corrosion attack”, Proc. of IESL Young Members Section 2006, The Institution of Engineers, Sri Lanka.

P.B.R. Dissanayake, P.A.K. Karunananda, “Towards Reliability Based Maintenance Strategy of Ageing Bridge” Proceedings of the Annual Research Sessions, University of Peradeniya, Sri Lanka, 70, Vol. 11, 2006.

Mitao Ohga, P.B.R. Dissanayake and P.A.K. Karunananda, “Reliability based bridge path evaluation”, Third Asian-Pacific Congress on Computational Mechanics (APCOM’07), Kyoto, Japan, 3-6 December 2007, CD ROM.

M. Ohga, K. Karunananda and P.B.R. Dissanayake, “Reliability based bridge network evaluation”, The International Conference on Computational Methods (ICCM2007), Hiroshima, Japan. 4-6 April 2007, CD ROM.

P.B.R. Dissanayake, K.R.B. Herath, S.C. Siriwardane, “ Cyclic Plasticity Based Low- Cycle Fatigue Models for Metal Structure”, Journal of the Institute of Engineers Sri Lanka, Vol XXXX, No 01, January 2007, pp 29 – 43.

Bijan Khazai, Guillermo Franco, J. Carter Ingram, Cristina Rumbaitis del Rio, Priyan Dias,P.B.R. Dissanayake, Ravihansa Chandratilake, S. Jothy Kanna, “Post- December 2004 Tsunami Reconstruction in Sri Lanka and Its Potential Impacts on Future Vulnerability”, The Professional Journal of the Earthquake Engineering Research Institute, pp 829 – 844, 2007.

P.B.R. Dissanayake, P.A.K. Karunananda, “Cost and Reliability Interaction in Bridge Maintenance”, Journal of the Institute of Engineers Sri Lanka, 2007, pages 9.

P.B.R. Dissanayake, S. B. Narasinghe, “Service Life Prediction of Masonry Arch Bridges Using Artificial Neural Networks” Journal of the Institute of Engineers Sri Lanka, 2007, 5 pages.

P.B.R. Dissanayake “Forensic Investigation on Design and Construction Failures”, Journal of the Institute of Engineers Sri Lanka, 2007, XXXX, No 02, April 2007, pp 07 – 12.

P.B.R. Dissanayake, S. Jothy Kannan, “Optimum Design of Prestressed Concrete Beam”, Journal of the Institute of Engineers Sri Lanka, 2007, XXXX, No 02, April 2007, pp 29 – 32.

P.B.R. Dissanayake, P.A.K. Karunananda, “A Study of Road Infrastructure Damage in Eastern Province of Sri Lanka by Tsunami Disaster” The proceedings of the International Conference on Mitigation of the Risk of Natural Hazards, 6, 2007, Peradeniya, Sri Lanka.

W.A.G.C.Weerasooriya, P.B.R. Dissanayake, “Structural Performance Under Tsunami Forces” The proceedings of the International Conference on Mitigation of the Risk of Natural Hazards, 10, 2007, Peradeniya, Sri Lanka.

Bandara, P.B.R. Dissanayake, “Condition Evaluation of Bridge for Potential Earthquake Risk” The proceedings of the International Conference on Mitigation of the Risk of Natural Hazards, 44, 2007, Peradeniya, Sri Lanka.

P.B.R. Dissanayake, M. Ohga, K. Taniwaki, S.C. Siriwardane, “A Study on Earthquake Induced Ultra-Low Cycle Fatigue Failure of Steel Structures” The proceedings of the International Conference on Mitigation of the Risk of Natural Hazards, 48, 2007, Peradeniya, Sri Lanka.

S.A.D.N. Senavirathne, S.N.C.M. Dias, B.F.A. Basnayake, K.S.P. Amaratunga, P.B.R. Dissanayake, “Evaluation of Alternate Fibres to Asbestos for Reinforcing Roofing and Ceiling Sheets” The proceedings of the International Conference on Mitigation of the Risk of Natural Hazards, 59, 2007, Peradeniya, Sri Lanka.

Mitao Ohga, S.A.C.S. Siriwardane, P.B.R. Dissanayake, K. Taniwaki, “A method for remaining fatigue life estimation of existing riveted railway bridges”, The proceedings of the International Conference on Computational Method (ICCM2007), Computational Method, 216, Springer, 2007, Hiroshima, Japan.

P.B.R. Dissanayake, “Maintenance Planning of Bridges”, The proceedings of the International Conference on Computational Method (ICCM2007), Computational Method, 212, Springer, 2007, Hiroshima, Japan.

Mitao Ohga, I.M.S.W. Kumara, P.B.R. Dissanayake, K. Taniwaki, P.A.K. Karunananda, “A Reliability Approach in Condition Assessment of I Girder Concrete Bridges”, The proceedings of the International Conference on Computational Method (ICCM2007), Computational Method, 214, Springer, 2007, Hiroshima, Japan

P.B.R. Dissanayake “Price Escalation in Construction Materials”, Article published in proceeding of annual session by National Contractors association of Sri Lanka, July 2007.

P.B.R. Dissanayake and P.A.K. Karunananda, “Reliability based resource allocation in bridge maintenance”, University Research Sessions, University of Peradeniya, Peradeniya, Sri Lanka, December 2007.

S. C. Siriwardane, M. Ohga, P.B.R. Dissanayake, K. Taniwaki “Different Approaches for Remaining Fatigue Life Estimation of Critical Members In Railway Bridges”, International Journal of Steel Structures, 7(4), 2007, pp 263-276.

P.B.R. Dissanayake, P.A.K. Karunananda, Practical Application of Guidelines for Buildings at Risk from natural Disasters : Tsunami Reconstructed Houses Built in Kalmunai, “Modulus”, Journal Publication of Society of Structural Engineers- Sri Lanka..

S.A.S.C. Siriwardane, Mitao Ohga, P.B.R. Dissanayake, Low-Cycle Fatigue Model for Non-Linear Kinematic Hardening Materials, Proceeding of Third International Structural Engineering and Construction Conference (ISEC-03), Volume 2, ISSBN 0415390370, Tokuyama College of Technology, Japan, September 20-23, 2005.

P.A.K. Karunananda, P.B.R. Dissanayake, K.R.B. Herath, Mitao Ohga, “Life Prediction of Wooden deck Bridges Using Reliability Theory”, Proceeding of Third International Structural Engineering and Construction Conference (ISEC-03), Volume 2, pp 713-716, ISSBN 0415390370, Tokuyama College of Technology, Japan, September 20-23, 2005.

M.P. Ranaweera, P.B.R. Dissanayake, “Consultant’s Role in the Construction Phase of a Building Project”, Proceeding of Annual Sessions, 2004/2005, the Institution of Engineers Sri Lanka Central Province Centre, pp. 19-27, 2005.

P.B.R. Dissanayake, “Site Management”, Proc. of the Annual Seminar of the Civil Engineering Society of Department of Civil Engineering, CES, 2005, pp 7-10.

S. Jothy Kanna, P.B.R. Dissanayake, “Optimum Design of Pre-Stressed Beams Using Available Software”, Proc. of Annual Transactions of IESL 2005, The Institution of Engineers, Sri Lanka.

N.L.N.S.B. Narasinghe, P.B.R. Dissanayakee, “Service Life Prediction of Reinforced Concrete Deck Bridge using Artificial Neural Networks”, Proc. of Annual Transactions of IESL 2005, The Institution of Engineers, Sri Lanka.

P.B.R. Dissanayake, “Failure Investigation of Tsunami Damage Structures in Sri Lanka”, International Conference on Geotechnical Engineering for Disaster Mitigation and Rehabilitation (GEDMR05), 2005, Singapore.

P.B.R. Dissanayake, “Potential Earthquake Risk of Building in Sri Lanka”, The proceedings of the International Conference on Geotechnical Engineering for Disaster Mitigation and Rehabilitation (GEDMR05), 2005, Singapore.

P.B.R. Dissanayake, Manufactured Sand Alternative to Traditional Fine Aggregate, Proc. of Advanced Materials for Construction of Bridge, Building and Other Structures-IV, August 14-19, 2005, Maui, Hawaii.

P.B.R. Dissanayake, N. Mohadevan, “Potential Earthquake Risk of Building in Sri Lanka”, The proceedings of the International Symposium Disaster Reduction on Coasts, 2005, Melbourne, Australia.

P.A.K. Karunananda, P.B.R. Dissanayake, “Prediction of Service Life of Reinforced Concrete Deck bridges Using Structural Reliability Theory” The proceedings of the International Conference on Computational Method (ICCM2004), Computational Method, 333-338, Springer, 2004, Singapore.

S.A.S.C. Siriwardane, P.B.R. Dissanayake and K. R. B. Herath, “Mathematical Model to Describe the Low Cycle Fatigue Behavior of Ductile Metals” The proceedings of the International Conference on Computational Method (ICCM2004), Computational Method, 443-447, Springer, 2004, Singapore.

A.M.N.D. Adasooriya, S.A.S.C. Siriwardane and P.B.R. Dissanayake “Performance Analysis of PC Plates Used in Bridge Deck Construction” The proceedings of the International Conference on Computational Method (ICCM2004), Computational Method, 517-524, Springer, 2004, Singapore.

P.B.R. Dissanayake “Multicriteria Fuzzy Optimization of Bridge Systems” The proceedings of the International Conference on Computational Method (ICCM2004), Computational Method, 965-969, Springer, 2004, Singapore.

P.B.R. Dissanayake, M.P. Ranaweera, “Condition Evaluation of Old Structures”, Proceeding of Annual Sessions, 2003/2004, the Institution of Engineers Sri Lanka Central Province Centre, November 2004.

P.A.K. Karunananda, P.B.R. Dissanayake, K.R.B. Herath, Prediction of Service Life of Riveted Wrought Iron Railway bridges using Structural Reliability Theory The 2nd International Conference on Structure, Processing and Properties of Materials (SPPM2004), 2004, Dhaka, Bangladesh.

S.A.S.C. Siriwardane, A.M.N.D. Adasooriya, P.B.R. Dissanayake, K.R.B. Herath, Structural Appraisal and Service Prediction of Existing Bridges”, the 2nd International Conference on Structure, Processing and Properties of Materials (SPPM2004), 2004, Dhaka, Bangladesh.

P.A.K. Karunananda, P.B.R. Dissanayake, K.R.B. Herath, “Prediction of Serviceability Condition of Arch Bridges using Structural Reliability Theory”, Proceedings of the 60th Annual Session of Sri Lanka Association for the advancement of Science (SLAAS) -2004, 141.

S. A. S. C. Siriwardane, P.B.R. Dissanayake, K.R.B. Herath, “Mathematical Model to Predict the Fatigue Behavior in Railway Bridges”, Proceedings of the 60th Annual Session of Sri Lanka Association for the advancement of Science (SLAAS) -2004, 142.

P.B.R. Dissanayake, K.R.B. Herath, P.A.K. Karunananda, S.A.C.S. Siriwardane, “Condition Evaluation of the Bridges in the National Road network of Sri Lanka” Proceedings of the Annual Research Sessions, University of Peradeniya, Sri Lanka, 93, Vol. 9, 2004.

S. Jothy Kannan, P.B.R. Dissanayake, “Optimum Structural Element Design Using Ms-Excel” Proceedings of the Annual Research Sessions, University of Peradeniya, Sri Lanka, 76, Vol. 9, 2004.

S. Jothy Kannan, P.B.R. Dissanayake, “Application of structural optimization for one-way slab design” Proc. of IESL Young Members Section 2004, The Institution of Engineers, Sri Lanka.

P.A.K. Karunananda P.B.R. Dissanayake, K. R. B. Herath, “Comparison of Miner-Palmgren Cumulative Damage Rule with Structural Reliability Theory in Service Lifetime Prediction of Reverted Wrought Iron Railway Bridges” The Sixth Summer Symposium, 2004, Saitama University, Japan.

P.B.R. Dissanayake, “Blended Cements-The future pace sector in the Construction Industry”, Official Publication of the National Construction Association of Sri Lanka, Vol. 8, No. 01, August 2003, pp 32 – 34.

P.A.K. Karunananda, P.B.R. Dissanayake, “Reliability Based Service Lifetime Estimation of Riveted Wrought Iron Railway Bridges” Proceedings of the Annual Research Sessions 2002, University of Peradeniya, Sri Lanka, 86, Vol. 7, 2002.

P.A.K. Karunananda, P.B.R. Dissanayake, “Engineering Analysis and Fatigue Evaluation of Ancient Riveted Wrought Iron Railway Bridges” Proceedings of the Annual Research Sessions 2002, University of Peradeniya, Sri Lanka, 88, Vol. 7, 2002.

G.B.Gunarathna, I.M.S.W. Kumara, C.S.Lokubarana, M.N.A. Peiris, S.A.S.C.Siriwardane,P.B.R. Dissanayake, “Structural Analysis and Reliability Assessment of Prestressed Concrete Beam Bridges using Validated Finite Element Models” Proceedings of the Annual Research Sessions 2002, University of Peradeniya, Sri Lanka 2002.

P.B.R. Dissanayake, “Proposed Engineering and Technology Centre”, Official Publication of the National Construction Association of Sri Lanka, Vol. 7, No. 02, August 2002, pp 13 – 14.

S.A.S.C. Siriwardhane, P.B.R. Dissanayake, Service Life Prediction of Railway bridge at Colombo over Kelani River, Official Publication of the National Contractor Association of Sri Lanka, Volume 7, No. 2, August 2002.

P.B.R. Dissanayake, N. Jayasooriya, “A Case Study of Performance of A Contractor”, Official Publication of the National Construction Association of Sri Lanka, Vol. 07, No. 01, January-March 2002, pp 21– 22.

Mohadevan.N, Abayakoon.S.B.S, Seneviratne H.N, Dissanayake P.B.R. , and Kurukulasuriya.L.C.(2002), “An analysis of the influence of local soil conditions on earthquake ground motion in Colombo, Sri Lanka”, Poster Presentation, Proceedings of the CES Annual Seminar-2002, Civil Engineering Society, University of Peradeniya, ISSN 1391-7597, 2002.

Mohadevan.N, Seveviratne.H.N, Dissanayake. Dissanayake P.B.R., Kurukulasuriya.L.C (2001) “A study of seismic hazard and hazard mitigation in Greater Colombo, Sri Lanka”. Extended abstract, Proceeding of the Annual Research Sessions 2001, Vol 6, University of Peradeniya, Sri Lanka.

D.J. Gallage, K.A.A.S. Kulasooriya, M.S. Wijenanda, P.B.R. Dissanayake, “Study of the Behaviour of Ready Mixed Concrete”, Proceedings of the Annual Research Sessions 2002, University of Peradeniya, Sri Lanka 2001

S. Ohkubo, P.B.R. Dissanayake, Multicriteria Fuzzy Optimization of Structural Systems”, International Journal for Numerical Methods in Engineering, John Wiley & Sons, 45, pp.195-214, 1999.

P. Ranjan, P.B.R. Dissanayake, “Effect of Bad Decision Making in Engineering Profession” Proceedings of the Annual Research Sessions, University of Peradeniya, Sri Lanka, Vol.?9, 1999.

P.B.R. Dissanayake, Multicriteria Fuzzy Optimizations of Structural Systems” Proceedings of the Annual Research Sessions 1999, University of Peradeniya, Sri Lanka, 1999.

S. Ohkubo, P.B.R. Dissanayake, K. Taniwaki, “An approach to multicriteria fuzzy optimization of a prestressed concrete bridge system considering cost and aesthetic feeling” International Journal of Structural Optimization, Springer – Verlag, 8 pages, International Society for Structural and Multidisciplinary Optimization (ISSMO), Vol. 15, No. 2, April 1998, pp 132 – 140.

S. Ohkubo, P.B.R. Dissanayake, Fuzzy Optimization of a prestressed concrete bridge system considering cost, aesthetic and seismic safety, Journal of Structural Engineering, JSCE, Vol. 44A, 1998, pp.487-495.

S. Ohkubo, P.B.R. Dissanayake, K. Taniwaki Structural system optimization considering multiple objectives and fuzziness, Proc. of Australian Conference on Structural Optimization (ACSO ’98), Sydney, Australia, 1998, pp.385-392.

S. Ohkubo, P.B.R. Dissanayake, Multicriteria Fuzzy Optimization for Structural Systems”, Proc. of 2nd International symposium on tool and methods for concurrent engineering (TMCE’96), Manchester, UK, 1998, pp.559-571.

S. Ohkubo, P.B.R. Dissanayake, Fuzzy optimization of prestressed concrete bridge system considering cost and aesthetic feeling objectives. Proc. of 2nd World congress of Structural and Multidisiplinary optimization (WCSMO-2), 1997, pp. 959-964.

S. Ohkubo, P.B.R. Dissanayake, Multicriteria fuzzy optimization of prestressed concrete bridge system considering cost and aesthetic feeling, Proc. of 52nd annual conference of the Japan society of civil engineers, JSCE, 1997, pp. 518-519.

S. Ohkubo, P.B.R. Dissanayakee, Optimum span ratio of prestressed concrete bridge considering super and substructures, Proc. of 2nd annual conference of the Japan society of civil engineers (Shikoku District), 1996, pp.85-86.

S. Ohkubo, P.B.R. Dissanayakee, Multi-objective fuzzy optimization of prestressed concrete bridge system”, Proc. of the third Asia-pacific conference on computer mechanics (APCOM ’96), 1996, pp. 571-576.

S. Ohkubo, P.B.R. Dissanayake, “Optimum design of RC pile foundation” Proc. of 2nd annual conference of the Japan society of civil engineers, 1996/5, pp.74-75.

S. Ohkubo, K. Taniwaki, P.B.R. Dissanayake, A study on optimal design of prestressed concrete continuous beams, Memories of Faculty of Eng. Ehime University, Vol. XV, 1996,pp.171-183.

S. Ohkubo, P.B.R. Dissanayakee, “Optimal Design of Prestressed Concrete Beam Subject to Serviceability and Ultimate Limit State Constraint”, Proc. of 50th annual conference of the Japan society of civil engineers, JSCE, 1995, pp 478-479.

S. Ohkubo, P.B.R. Dissanayake, A fundamental study on optimal design of prestressed concrete beams, Proc. of 1st annual conference of the Japan society of civil engineers (Shikoku District), 1995, pp. 110-111.

ChamindaSenarathna Bandara and P.B.R. Dissanayake, Behavior of Cantilever Slabs in a Blast Environment, Journal of Civil Engineering and Architecture, Nov. 2012, Vol. 6 (11), pp. 1561-1570.

Chaminda S, Bandara and P.B.R. Dissanayake, The Impact of the Gigacycle Fatigue on Steel Bridges, Key Engineering Materials, July 2013, Vol. 569-570, pp. 246-253.

Chaminda S. Bandara, Sudath C. Siriwardane, Udaya.I. Dissanayake and P.B.R. Dissanayake, Fatigue Strength Prediction Formulae for Steels and Alloys in the Gigacycle Regime, International Journal of Materials, Mechanics and Manufacturing, Aug. 2013, Vol. 1 (3), pp. 256-260.

Chaminda S. Bandara, Sudath C. Siriwardane, Udaya I. Dissanayake and P.B.R. Dissanayake, Analysis of Code Provided S-N Curves, Experimental S-N Curves and Important Considerations for Fatigue Life Evaluation of Existing Steel Bridges, ICTAD Journal 2013, Vol. 11, pp. 10-19.

Stress – Life curves for the gigacycle fatigue regime, C.S. Bandara, U.I. Dissanayake and P.B.R. Dissanayake in Peradeniya University Research Sessions (PURSE 2012), University of Peradeniya, 04th July 2013.

Behavior of ground penetration radar with changing material properties in concrete, by K.T.S. Karunanayake, L.W. Galagedara and P.B.R. Dissanayake in Peradeniya University Research Sessions (PURSE 2012), University of Peradeniya, 04th July 2013.

Simplified formula for developing stress life S-N curves for steels in the high and gigacycle regime for various stress ratios, by C.S. Bandara, S.C. Siriwardane, U.I. Dissanayake and P.B.R. Dissanayake in the 2ndInternational Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS), University of Ruhuna, Galle, Sri Lanka, 27th September 2013.

Map internal elements in concrete slab and compare with GPRmax model, by K.T.S. Karunanayake, L.W. Galagedara, P.B.R. Dissanayake and R.M.S. Dananjaya in the 2ndInternational Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS), University of Ruhuna, Galle, Sri Lanka, 27th September 2013.

Developing a full range S-N curve and estimating cumulative fatigue damage of steel elements, by Chaminda Senarathna Bandara, Sudath Chaminda Siriwardane, Udaya Dissanayake and Ranjith Dissanayake in the 23rdInternational Workshop (Conference) on Computational Mechanics of Materials (IWCMM23), National University of Singapore, Singapore, 2 – 4 October 2013.

Hardness based non-destructive method for developing location specific S-N curves for fatigue life evaluation, by Chaminda S. Bandara, Sudath C. Siriwardane, Udaya I. Dissanayake and Ranjith Dissanayake in the 4th International Conference on Structural Engineering and Construction Management (ICSECM13), Kandy, Sri Lanka, 13th~15th December 2013.

Multicriteria Fuzzy Optimization of Prestressed Concrete Bridge System, PhD. Dissertations, Department of Civil Engineering, Ehime University, Japan, 2008.

A Fundamental Study on Optimal Design of Prestressed Concrete Structure, M. Eng. Dissertation, Department of Civil Engineering, Ehime University, Japan, 2005.

Chaminda S. Bandara and Ranjith Dissanayake, 2014, Blast Effects on Reinforced Concrete Cantilever Slabs, LAMBERT, Academic Publishing.

Siriwardane Sudath Chaminda, Mitao Ohga, Ranjith Dissanayake and Kaita Tatsumasa, (2009), Remaining fatigue life estimation of existing railway bridges, Railway Transportation: Policies, Technology and Perspectives, (Chapter of an Edited Book) Nova Publishers, USA, ISBN: 978-1-60692-8639, pp.181-216.

Mitao Ohga, Siriwardane Sudath Chaminda, Ranjith Dissanayake and Abeetha Peris Fatigue of Structural Connections: A Recent Research, Structural Steel and Castings: Shapes and Standards, Properties and Applications, (Chapter of an Edited Book) Nova Publishers, USA, ISBN: 978-1-61728-104-4.

Siriwardane Sudath Chaminda, Mitao Ohga, Munindasa P. Ranaweera, Ranjith Dissanayake and Raveendra Herath A Simple Model to Predict Ultra-Low Cycle Fatigue Fracture of Steel Bridges, Bridge Design: Types, Management and Analysis, (Chapter of an Edited Book) Nova Publishers, USA (Accepted on 3rd July 2010).

Guidance Notes on Safer School Construction, Global Facility for Disaster reduction and recovery published by INEE, the world bank and international strategy for disaster reduction 2007.

Guideline for building at risk for Natural Disaster, Published by Society of Structural Engineering Sri Lanka, 2005

International Conference on Forensic Civil Engineering 2016, 21-23 Jan. 2016, Nagpur, India

International Conference on Infrastructure Development For Environmental conservation and Sustenance, 28-30 October 2015, Tamilnadu, India.

International Conference on Infrastructure Failures and Consequences, 16-18 July 2014, Melbourne, Australia.

International Conference on Science and Technology ICST2014, 21st-22nd Feb. 2014, Pune, India

International Conference on Green Building, 24th -26th Oct. 2013, Chennai, India

Conference on Sri Lanka-Japan Collaborative Research, Kandy Sri Lanka March 2013.

The 4th International Conference on Seismic Retrofitting, Tabriz, Iran, 02-04 May, 2012.

The International Conference on Structural Engineering and Construction. 15-17th Dec. 2011.

The SAITM Research Symposium on Engineering Advancements (RSEA-2011), Malabe, Sri Lanka 2011.

The 3rd International Conference on Seismic Retrofitting, Tabriz, Iran, 20-22 October 2010.

Ehime University Research session, Japan in 2007

Promotion of Sustainability at GITAM University, Hyderabad Campus Retrofitting of Structures, 2014 Question Time, Society of Structural Engineers, Sri Lanka, May 2011

Dept. of Civil Engineering, Monash University, Melbourne , Australia 2009,

Department of Civil Engineering, Columbia University, New York, USA, 2009

Queensland University of Technology (QUT), Brisbane , Australia 2009,

United Nation University In Tokyo, Japan, 2007,

Dept. of Civil and Environmental Engineering, Saitama University Japan 2007,

Condition Assessment of Structures, Question Time, Society of Structural Engineers, Sri Lanka, 2005

Engineer’s Role after an Earthquake, Question Time, Society of Structural Engineers, Sri Lanka, 2006

Report for Investigation of Effects to Cargills Building due to the Cooling Tower in the Adjoining Property Cargills (Ceylon) Ltd., No: 40, York Street, Colombo 1, 2015

Consultancy service for Green Construction of Warehouse for Nestle Lanka PLC, Kurunegala Branch. , 2015

Condition Assessment of Factory Buildings at Noritake Lanka Porcelain (Pvt) Ltd , Mathale, Sri Lanka, 2015

Condition Assessment of the MAS Active Trading (Pvt) Ltd.,Nawala, 2015

Condition Assessment of Marriott Weligama Resort & Spa, Weligama, 2015

Condition Assessment of Lyceum School Building (Block “C”) Wattala, 2015

Structural Investigation of the Concrete Retaining Structure, Urban Regeneration Project City of Colombo, Henamulla Housing Project –Phase 2

Structural Assessment of Building Proposed for Domino’s Pizza outlet in Kandy 2015

Structural assessment, design review and failure analysis of the newly constructed cement grinding plant structure, Holcim Lanka Ltd., Galle, 2013 – 2014

Structural assessment, design review and failure analysis of the newly constructed cement grinding plant structure, Holcim Lanka Ltd., Galle, 2013 – 2014

Structural assessment of the existing packing house building for increasing its capacity, Holcim Lanka Ltd., Galle, 2013

Structural design for the Satalite Earthstation structure for Supreme Sat Pvt. Ltd., Pallekele, 2013

Acceleration monitoring of the turbine chambers of the Laxapana Powerstation (with the Engineering Design Center of the University of Peradeniya), 2013

Pull-out Tests for Pre-heater Structure at Holcim Cement Factory, Puttalam, 2013

Assessment of the Structural Integrity of the Gantry Yard and Material Storage Structure at Holcim Cement Factory, Puttalam, 2013

Structural designs for MEP supports for Mercuy International Electro Mechanical Contracting Abu Dhabi, UAE, 2012.

Condition assessment and retrofitting design for 6th floor of flour mixing plant, Prima Mill, Trincomalee (for Nawaloka Construction), 2013

Vibration monitoring of the HSBC Headquarters building, Colombo, 2012

Condition Assessment of Labour Secretariat Building at Narahenpita, 2012

Assessment of Pre-cast Concrete Beams of the Foot Bridge at Nachchaduwa Dam, 2012

Assessment of Structural Integrity of the Vocational Training Authority Building, Peradeniya, 2012

Proposed a total solution for the Trincomalee Holcim Coal Yard, 2012

Assessment of Structural Integrity of Cement Silos at Holcim Cement Factory, Galle, 2012

Infrastructure Development Plan for 100 welfare Centers in Disaster Prone areas by DMC, 2012.

16 Training Programmes on Disaster Resilient Building designs targeting construction sector practitioners By DMC, 2012.

Proposal for the initial environmental examination report for the water supply scheme for un-served areas of the Ampara Distric, 2012.

Design and Retrofitting of a Railway Bridge for Holcim Lanka Limited, 2011

Vibration Monitoring of the Ministry of Labor Building, 2011

Structural Engineering Expert Witness for Arbitration of STDP for RDA, 2011.

Structural appraisal of railway bridges at Holcim Lanka, Puttalam, 2010

Stability check for construction of the existing adjacent building for CECE 2010

Structural Health Monitoring of Crescat Resident, Colombo, 2010

Formulating Infrastructure Development Plans for Disaster Vulnerable School and Hospital of Batticaloa District for UNDP 2010

Formulating Infrastructure Development Plans for Disaster Vulnerable School and Hospital of Trincomalee District for UNDP 2010

Formulating Infrastructure Development Plans for Disaster Vulnerable School and Hospital of Ampara District for UNDP 2010

Design and construction supervision projects for World Vision 2011

Bridge Retrofitting NY USA 2008

Design Check for Cable Stabled Bridge for Engineer Without Border German, 2008

Seismic evaluation and retrofitting works in Japan 2007

Structural Stability of the Asian Paint Building at Colombo 2007

Investigation of failure of telecommunication tower, Belliatta, 2005

Investigation of the collapse of the roof trusses of the auditorium building , National Institute of Co-operative Development, Polgolla, 2005

Strain Measurements at AES Kelanitissa Power Plant, 2005

Condition Assessment of the Dutch Warehouse at Galle Fort, 2005

Investigation of Cracks on RCC Surfaces in Polonnaruwa Water Supply Project for SAIKEN 2010

Design of Fresh water Fish Health Laboratory Complex at University of Peradeniya 2004.

Determination of the current state of the Maligakanda old reservoir wall of National Water Supply and Drainage Board, 2003

Load testing of column being repaired at Gall face Hotel Colombo, 2003

Determination of current state of sluice gate of Udawalawe Reservoir based on strain measurements, 2003

Investigation of Cracks on foundations of Galvanized Steel Structures at Biyagama Switching Station 2003

Structural appraisal of railway bridge over Kelani river, Colombo, 2000

Performance analysis of PC Plates used in bridge deck construction in Gampola and Muwagama Bridge, Contractor: Kumagai Gumi Co Ltd, Japan, 2003,

Determination of optimized numerical analysis procedure for pre-stressed concrete beam bridges (span less than seventeen meters) in Sri Lanka, 2002.

Redesign of University Swimming Pool, 2000.

Associate Editor for the International Journal of Structural Health Monitoring. (http://shm.sagepub.com/ )

Chairman, Lego International (Pvt.) Ltd. Leading Construction and Consultancy Company in Sri Lanka.

Chairman. International Centre for Sustainable Built Environment (ICSBE)

President, Engineers Without Boarder Sri Lanka (EWBSL)

Director, Engineering Design and Consultancy Centre (ED & CC)

President, Ando Club of Sri Lanka (ACSL)

Executive Vice Chairman , Green Building Council Sri Lanka and Chairman, Education and Training of Green Building Council Sri Lanka

Coordinator for University of Peradeniya, for ProSPER.Net

Awarded Advanced Communicator Bronze (ACB) from Toastmaster International, USA.

Overseas Prize for the paper published in ICE (Institution of Civil Engineers, London, UK, 2007 titled "Lessons Learnt from Tsunami Damage in Sri Lanka".

JASSO Research Fellowship in Japan 2007 (Japan Student Service Organization).

SD&CC Award-2008, IESL, Paper on “Cost and Reliability Interaction in Bridge Maintenance”, awarded on 17th October, 2008.

2nd Place of Nimal Chandrasena Award-2006, IESL, Paper on “Artificial Neural Networks for Prediction of Service Life of the Masonry Arch Bridges”, awarded on 20th October, 2006.

The President’s Research Bonus-1999 for the Authorship of the following citation: Int. J. Num. Methods in engineering, 45: 195-214, 1999, awarded on 30th June, 2001.

President's award for attending research in foreign country in 2003-2004.

Received an AusAID Research Grant 2005.

E.O.E. Pereira Studentship 1988.

Ceylon Oils and Facts Corporation Studentship 1988.

University Student Invitation Program 1988.

Invited from Osaka Foundation of International Exchange to follow Program for Short-term Overseas Trainees in Architecture and Arts, October 7 to November 5, 1999.