Dr. H.D. Yapa
Senior Lecturer
Office Address:
Department of Civil Engineering,
University of Peradeniya,
Peradeniya, 20400,
Sri Lanka.
hdy@pdn.ac.lk; hiranyapa@gmail.com
Dr. Hiran Yapa is a Senior Lecturer at the Civil
Engineering Department of the University of Peradeniya. He obtained
his bachelor's degree from the University of Moratuwa in 2006 and
thereafter worked as a research assistant at the same university till
he went to the Cambridge University in 2007 to read his PhD. His PhD
thesis was 'Optimum shear strengthening of reinforced concrete beams'
and it included experiments on shear retrofitting, strengthened behaviour
prediction, and use of stochastic optimisation techniques for structural
optimisation. Upon completion, he joined in the University of Peradeniya
in 2011. Since then, he teaches structural design, prestressed concrete,
concrete technology, etc. in the bachelor's and postgraduate degree
programmes. He also engages actively in research and consultancy projects.
- PhD: University of Cambridge (2011)
- BSc Engineering (first class honours): University of Moratuwa (2006)
- Dr. ANS Kulasinghe Gold medal for the best civil engineering graduate - 2006
- Cambridge Commonwealth Trust award - 2007 - 2010
- Overseas research studentship (UK) - 2007 - 2010
- Prof. Ragu Chandrakeerthy Gold medal for the best paper presented at the SSESL annual sessions - 2013
- President's award for scientific publications - 2014
- Access Engineering Gold medal for the best paper published in the MUDULUS - 2018,2019,2020
- Associate member of IESL
- 2014 - to date: Senior Lecturer (GII)
- 2012 - 2014: Lecturer - University of Peradeniya
- 2011 - Senior lecturer (on contract) - University of Peradeniya
- 2007 - 2011 - PhD student, University of Cambridge
- 2006 - 2007 - Research assistant for Prof. W.P.S. Dias, University of Moratuwa
-
University Research Grant (principal investigator): Shear strength of high-strength reinforced concrete beams at beam-column joints - 2016
-
NRC (sole investigator): Optimisation of shear retrofitting of RC beams via non-linear numerical analysis - 2017
-
NSF (principal investigator): Simulation of temperature development in concrete using finite difference approaches - 2020
-
Shear behaviour of concrete structures, structural retrofitting, non-linear simulation of concrete structures, temperature modelling of concrete, time-dependent behaviour of concrete, non-structural cracking of concrete
- Non-linear simulation of dapped end concrete beams and retrofitting
- Numerical simulation of time-dependent behaviour of concrete
- Optimum use of deep embedded reinforcement for shear retrofitting of RC beams
- Numerical simulation of temperature development of concrete structures
- Shear friction behaviour of concrete
- Split PhD programme with RMIT, Australia
| Category | Publications |
|---|---|
Indexed journals |
1. Dias, W.P.S., Yapa, H.D. and Peiris
L.M.N., 2009, Tsunami Vulnerability Functions from Field Surveys
and Monte Carlo Simulation, Civil Engineering and Environmental
Systems, 26(2), 181-194 |
2. Yapa, H.D. and Lees, J.M. 2011, Analysis
of CFRP Strap-Strengthened Reinforced Concrete Beams Using
the Modified Compression Field Theory (MCFT), In: Fiber-Reinforced
Polymer (FRP) Reinforcement for Concrete Structures. American
Concrete Institute, SP 275, 1-20 |
|
3. Yapa, H.D. and Lees, J.M., 2014, Rectangular
Reinforced Concrete Beams Strengthened with CFRP Straps, ASCE
Journal of Composites for Construction, 18(1), 04013032 |
|
4. Yapa, H.D. and Lees, J.M., 2014, Optimisation
of Shear Strengthened Reinforced Concrete Beams, Proceedings
of the ICE - Engineering and Computational Mechanics, 167
(2), 82-96 |
|
5. Caro, M., Dirar, S., Quinn, A and
Yapa, H.D., 2020, Shear strengthening of existing reinforced
concrete beams with embedded bars - An overview, Structures
and Buildings |
|
Referred journals |
1. Wasala, W.M.T.D. and Yapa, H.D., 2017,
Prediction of Temperature Development in Concrete using Semi-adiabatic
Temperature Measurements, Engineer: Journal of the Institution
of Engineers, Sri Lanka, 50(3), 1-8 |
2. Sanjeewa, R.M.D.M., Pathirana, P.S.K.
and Yapa, H.D., 2017, Mix Design Aspects of High Performance
Concrete Comprised of Silica Fume and Fly Ash. Engineer: Journal
of the Institution of Engineers, Sri Lanka. 50(4), pp.23-29 |
|
3. Gatheeshgar, P., Silojan, P., Dammika,
A.J. and Yapa, H.D., 2018. Prediction of Shear Transfer in
High-strength Concrete Crack Interfaces. Engineer: Journal
of the Institution of Engineers, Sri Lanka, 51(3), pp.21-30.
DOI: |
|
4. Dissanayake, D.M.M., Dissanayake,
D.M.M.P. and Yapa, H.D., 2018, Prediction of Concrete Temperature
using 3D Finite Difference (FD) Modelling, MODULUS-SSESL,
28(3), pp. 5-10. |
|
5. Yapa, H.D., Najas, M.S.M. and Vaseekaran,
T., 2018, Influence of High Temperature Curing for Strength
Development of Concrete Comprising Fly Ash and GGBS, MODULUS-SSESL,
28(4), pp. 18-24. |
|
6. Abeysinghe, A. and Yapa, H.D., 2020,
Finite Element Modelling of Damaged Half-Joint Beam Behaviour,
MODULUS-SSESL, 30(3), pp. 4-10. |
|
Conference |
1. Yapa, H.D. and Lees, J.M.,
2009, Optimum Shear Strengthening of Reinforced Concrete
Beams with Prestressed Carbon Fibre Reinforced Polymer (CFRP)
Straps, Proceedings of the 4th International Conference
on Advanced Composites in Construction (ACIC 09), Edinburgh,
UK, 214-226 |
2. Yapa, H.D. and Lees, J.M.,
2013, Modelling the Behaviour of Shear Strengthened Reinforced
Concrete Beams using a Shear Friction Concept, SSESL
Annual Sessions, Colombo, Sri Lanka |
|
3. Ahamed, M.I., Senaratna, R.S.L.R.,
Weerasinghe, A.B., Yapa, H.D., 2014, Sensitivity of External
Reinforcement Location on the Shear Capacity of Retrofitted
RC Beams, Proceedings of NIRMAAN ICESS 2014, Bangalore,
India |
|
4. Wickrama Arachchi, W.A.A.C.
and Yapa, H.D., 2016, Prediction of Cracking in Reinforced
Concrete Bridges, Annual Sessions of IESL, Colombo, Sri
Lanka, 79-85 |
|
5. Sanjeewa, R.M.D.M., Pathirana,
P.S.K. and Yapa, H.D., 2017, Optimum Use of Silica Fume
and Fly Ash for Production of High Performance Concrete,
Proceedings of 5th International Symposium on Advances in
Civil and Environmental Engineering Practices for Sustainable
Development (ACEPS-2017), Galle, Sri Lanka, 339-346 |
|
6. Madupushpa, K.D., Kahatapitiya
N.K.S.S. and Yapa, H.D., 2017, Numerical Prediction of
Concrete Temperature, Proceedings of 5th International
Symposium on Advances in Civil and Environmental Engineering
Practices for Sustainable Development (ACEPS-2017), Galle,
Sri Lanka, 347-354 |
|
7. Dissanayake, D.M.M.P., Dissanayake,
D.M.M. and Yapa, H.D., 2017, Numerical Modelling of Temperature
Development in Concrete Comprising Pipe-cooling Networks,
Proceedings of the 8th International Conference on Structural
Engineering and Construction Management, ICSECM 2017 - 54 |
|
8. Gatheeshgar, P., Silogen, P. and Yapa,
H.D., 2017, Shear Friction Behaviour of High-strength Concrete,
Proceedings of the 8th International Conference on Structural
Engineering and Construction Management, ICSECM 2017 - 73 |
|
9. Kurukulasuriya, M.C., Rathnayake,
H.S. and Yapa, H.D., 2017, Optimum Shear Strengthening
of Reinforced Concrete Beams Using an Un-bonded CFRP Strap
Shear Retrofitting System, Proceedings of the 8th International
Conference on Advanced Composites in Construction (ACIC 2017),
Sheffield, UK, 107-113 |
|
10. Yapa, H.D., Fatheen, M. and Ahamed,
S., 2019, Efficient Retrofitting of Reinforced Concrete (RC)
Beams using Prestressed Deep Embedded (DE) FRP Bars, Proceedings
of the 9th International Conference on Advanced Composites
in Construction (ACIC 2019), Birmingham, UK, 17-22. |
- Design of structures; Prestressed concrete; Concrete technology
| Workshops | Pre-conference workshop on Retrofitting of structures - 2013 3-day workshops on 'Design of concrete Structures to Eurocode 2' - 2014,2015,2016 |
| Talks | Knowledge
sharing monthly talk organised by INSEE on 'Shear retrofitting
of reinforced concrete structures - towards the future' -
2020 |