COMPUTER AIDED DESIGN LABORATORY
CAD laboratory is equipped with a computer network with necessary hardware and civil engineering software specializing in structural analysis, drafting and developing solutions for industrial applications. Some of the commercial finite element packages available at CAD Lab are SAP2000, MIDAS, GRASP and FLAC. In addition to that, some in-house codes are also available for various structural analysis and design purposes. Furthermore, CAD laboratory provides working environment for undergraduate and post-graduate research studies
Equipment/ Facilities
Computer Aided Design (CAD) Laboratory provides essential computational services for the
teaching, research and consultancy activities of the Department of Civil Engineering, University of
Peradeniya. Currently, it consists of the following equipment.
▸ Available laptops – 82
▸ Multimedia Projectors – 04
▸ Workstations – 05
▸ NEC Computers – 04
▸ HP Computers – 02
Information of workstations
| Purchased Date | Item | Specifications | |
|---|---|---|---|
| 1 | 2021.04.06 | High end desktop computer (workstation) | 128GB DDR4 ECC RAM Nvidia Geforce RTX 3060Ti Graphic card 4TB SATA 3 7200RPM High performance Hard Drive |
| 2 | 2025.01.25 | High end desktop computer (workstation) | 32GB RAM |
| 3 | 2025.01.28 | High end desktop computer (workstation) | 128GB ECC RAM |
| 4 | 2025.03.12 | High end desktop computer (workstation) | 128GB ECC RAM |
The most recent addition to the CAD Laboratory is the Advanced Numerical Simulation Center
which facilitates high end numerical simulations for the teaching, research and consultancy
activities of the Department of Civil Engineering, University of Peradeniya. This center was
established with the generous funding of PEFAA parallel to the diamond jubilee of the Faculty of
Engineering University of Peradeniya.
Specialized Services
- Advanced linear and nonlinear analysis of structures for extreme loadings
- Structural assessment through ambient vibration measurements using wavelet transformations
- Development of finite element codes for analysis of frame structures using forced based finite element methodology
- Detailed stress analysis of structural components incorporating different material models
Current Research
Research related to force based finite element formulation
- Rajapakse R. M. C. M., Wijesundara K. K. and Dissanayake P. B. R. 2016, “Force based linear static analysis of 2-d curved tapered Timoshenko beam elements”, in Sixth International Congress on Computational Mechanics and Simulation, Indian Institute of Technology, Bombay, pp. 1252-1256.
- Rajapakse R. M. C. M., Wijesundara K. K. and Dissanayake P. B. R. 2016, “Nonlinear static force based finite element analysis of steel Euler-Bernoulli beam elements having complex geometries”, in Annual Sessions 2016: Society of Structural Engineers Sri Lanka, Colombo.
- Dharmasiri, Kasun, Wijesundara K. K., Dammika, A. J. and Dissanayake P. B. R. 2016, “Dynamics of a 2D curved cantilever Timoshenko beam element using force based finite element formulation”, in Sixth International Congress on Computational Mechanics and Simulation, Indian Institute of Technology, Bombay, pp. 1407-1411.
- Dharmasiri, M. A. K. M., Wijesundara K. K., Dammika, A. J. and Dissanayake P. B. R., 2016, “Modal characteristics of arch structures using force-based finite element formulation”, in Annual Sessions 2016: Society of Structural Engineers Sri Lanka, Colombo.
- Wijesundara K.K., Nascimbene R., Rassati G.A., [2014] “Modelling of Different Bracing Configuration in Multi-Storey Concentrically Braced Frame using a Force Based Approach”, Journal of Constructional Steel Research, 103, 241-250.
Development of direct displacement based design philosophy for seismic design of structures
- Wijesundara K.K. and Rajeev P., 2012, “Direct Displacement Based Design of Concentrically Braced Frame Structures”, Australian Journal of Structural Engineering, Vol. 13 (3), 243
Extracting modal characteristics of structures from ambient vibration measurement using wavelet transformation
- Wijesundara K.K., Negulescu C. and Foerster E., 2015, “Estimation of Modal Properties of Low-Rise Buildings Using Ambient Excitation Measurements”, Journal of Shock and Vibration.
- Rajeev P. and Wijesundara K.K., 2014. “Energy Based Damage Index for Concentrically Braced Steel Frame Structures Using Continuous Wavelet Transform”, Journal of Constructional Steel Research, 101, 426-436.
- Wijesundara K.K., 2014,,“Proposed Method for Estimation of Damping Ratio of a Structure Using Continuous Wavelet Transformation Method”, Proceedings of iPURSE, July 4-5, 2014, Peradeniya, Sri Lanka.
- Wijesundara K.K. “Application of Continuous Wavelet Transformation Method in Estimation of Model Properties”, 2012, Proceedings of the International Conference on Sustainable Built Environment, December 13-15, 2012, Kandy, Sri Lanka.
- Wijesundara K.K., Negulescu D., Monfort D. and Foerster E., 2012, “Identification of Model Parameters of Ambient Excitation Structures using Continuous Wavelet Transform”, Proceedings of 15th World Conference in Earthquake Engineering, September 24-28, 2012, Lisbon, Portugal.
Numerical simulation of ground motion prediction in Sri Lanka due to near and far field seismic events
- Dananjaya S., Dissanayake R., Senevirathne N. and Wijesundara K.K., 2014, “Simulation of bedrock motion to Obtain PGA values”, The Proceedings of the 10th International Conference of the International Institute for Infrastructure Resilience and Reconstruction (I3R2) 20-22 May 2014. (38-41). West Lafayette, Indiana: Purdue University.
- Uduweriya S.B., Wijesundara K.K. and Dissanayake P.B.R., 2013, “Probabilistic Seismic Hazard Macrozonation in Sri Lanka” Proceedings of the 4th International Conference on Structural Engineering and Construction Management, December 13-15, 2013, Kandy, Sri Lanka.
- Global Environmental Issues and Built Environment
Seismic assessment of typical school buildings in Sri Lanka using fragility curves
- Marasingha J., Wijesundara K.K. and Dissanayake U.I., 2013, “Application of Incremental Dynamic and Pushover Analysis for Seismic Assessment of a Typical School Building in Sri Lanka”, Proceedings of the 4th International Conference on Structural Engineering and Construction Management, December 13-15, 2013, Kandy, Sri Lanka.
- Marasingha J., Wijesundara K.K. and Dissanayake U.I., 2013, “Seismic Assessment of Typical Two-Storey School Building in Sri Lanka” Proceedings of the Annual Session Society of Structural Engineers, September 23, 2013, Colombo, Sri Lanka
Numerical prediction of shear failure of reinforced concrete beams using the total crack strain constitutive material model
Nonlinear dynamic analysis of structures for extreme earthquake and wind loadings
Staff
Academic
Staff
- Prof. Kushan Kalmith Wijesundara (Head/ Department of Civil Engineering)
- Dr. Sahan Bandara
Nonacademic
Staff
- Mr. A.S.Weerasinghe
- Mr. A.N.G.P.Rangana
Inquiries
Mr. A.S.Weerasinghe
+94 81 239 3553
ENVIRONMENTAL ENGINEERING LABORATORY
"Our effort is to develop a fully pledged national laboratory catering to various needs on solid waste related analyses"
The Environmental Engineering Laboratory with facilities for water and wastewater analysis, and is equipped with a microbiological laboratory. The Laboratory has been fully furnished with state-of-the-art analytical instruments that have the capacity to cater to a wide spectrum of analytical service needs. Besides, the laboratory is equipped with the most coveted technical and academic expertise related to the sphere of environmental engineering domain to cater to academic and industrial needs. Following specialized instrumentations are available: Atomic Absorption Spectrophotometer, Gas Chromatograph, HPLC Ion Chromatograph, HPLC Carbamate Analysis System, Organic Elemental Analyzer, Total Organic Carbon Analyzer and general water & wastewater quality parameter testing (BOD, COD, TSS, turbidity, MLVSS etc).
Equipment/ Facilities
Atomic Absorption Spectrophotometer
Auto Titrator
Gas Chromatograph
High performance liquid chromatograph
Organic Elemental Analyzer
Total organic carbon analyzer
Analytical Balance
High Speed Refrigerated Centrifuge
Muffel furnace
Turbidity meter
Specialized areas of studies and testing
The Environmental Engineering Laboratory has been fully furnished with the state-of-the-art analytical instruments that have the capacity to cater a wide spectrum of analytical service needs. Besides, we are equipped with most coveted technical and academic expertise related to the sphere of environmental engineering domain. This is the first national laboratory complex act as a nucleus in germinating research and development culture in Sri Lanka.
Drinking and wastewater quality testing
Whether data recording
Waste landfill monitoring
Soil and bio-solid analysis
Laboratory and pilot scale operationalization of wastewater treatment technologies
Research activities
- Development of wastewater treatment technologies
- Waste landfill monitoring
- Waste & wastewater characterization
- Adsorbent material characterization
Services to the Industry
With the advent of this Environmental Engineering Laboratory which is affiliated to the top seated university of Sri Lanka, University of Peradeniya, it is opened an avenue not only to research personnel but also to the industry as an independent and high principled analytical service establishment.
- Quality parameter testing for wastewaters, ground water & drinking water
- Soil and bio-solid sample testing
- Design and Construction supervision
- Consultancy services
- Environmental Impact Assessment
- Initial Environmental Examination
- Quality assurance of bottled water industry
- Water quality analysis
Undergraduates’ Utility
- Instrumental orientation & training
- Demonstrations of laboratory experiments & practical work
- Facilitation of undergraduate research studies
Staff
Academic Staff
- Prof. G.B.B. Herath
- Dr. (Mrs) G. M. P. R. Weerakoon
- Dr. Lashitha Rathnayake (Lecturer-in-charge)
Nonacademic Staff
- Mr. K.P.C.M. Wijewardhana
- Ms. Fathima Zuhara
- Mr. Jaliya Wijesundara
- Mr. D.R.M. Jayathilaka
Inquiries
Mr. K.P.C.M. Wijewardhana
+94 81 239 3567
FLUID MECHANICS LABORATORY
The Fluid Mechanics Laboratory equipped with wind tunnels, tilting flumes with fixed and movable beds, wave flumes, a towing carriage with tank and facilities for testing scale models, test rigs for testing of pipes, pumps, turbines and fans are primarily used for demonstrating fluid mechanics, hydraulic and hydrologic principles to undergraduate and postgraduate students as well as for their research activities. Services are also DEPARTMENT OF CIVIL ENGINEERING 14 provided to the industry in the areas of physical and mathematical model studies, field measurements and testing work related to water resources development projects.
Specialized Services
- Hydrological modeling of surface & ground water
- Catchments management & river engineering
- Water resources systems management and designs
- Hydraulic equipment testing & calibration
- Feasibility studies & design of hydro-power, irrigation and water supply systems
- Feasibility studies, modeling and design of harbors
- Coastal engineering and Coastal zone management
Equipment/ Testing Facilities
Workstation 1 (Dell EMC Power edge T440 Server)
Intel Xeon Silver 4110 Processor, 32 GB RAM, 1 TB HDD, Matrox G200e W3 VGA, Windows Server 2016 O/S
Workstation 2 (Black Box Workstation)
AMD Ryzen 3960x 24 Core Processor Processor, 128 GB RAM, 2 TB HDD, Nvidea Ge Force RTX 3060 Ti VGA, Windows 10 O/S
Pipe Surge and Water Hammer Apparatus
Digital Hydraulic bench with Friction loss in a pipe Appratus
Digital Current Meter
Submersible Pump
Single capacity tank training object
Ultrasonic flow meter
Ultrasonic flow meter (2)
Digital Pressure meter
Digital Thermometer
Research activities
- Coastal engineering and coastal zone management
- Wave and harbour processes
- Wave-structure interaction
- Tsunami and storm surge hydrodynamic
- Coastal hazard analysis and assessment
- Coastal sediment transport and morphological evolution
- Wave-current boundary layers
- Flow and sediment dynamics in rivers and channels
- System dynamics in water resources management
- Reservoir water quality modeling
- Flood modeling
- Application of soft computing techniques in water management
- Sediment transport with non-uniform sediments
- Catchment erosion
- Performance of berm and reef breakwaters
- Dam safety and Emergency action plan
- Water/ wastewater treatment
- Material development for advance water treatment processes
- Water quality and water safety
Services to the Industry
With the advent of this Environmental Engineering Laboratory which is affiliated to the top seated university of Sri Lanka, University of Peradeniya, it is opened an avenue not only to research personnel but also to the industry as an independent and high principled analytical service establishment.
- Testing of pumps
- Calibration of current meters
- Model tests for ship building
- Model tests for aerodynamics
- Discharge measurements in canals, streams and rivers
- Yield tests in tube wells
- Consultancy services for water resources projects
Staff
Academic Staff
- Prof. S.B. Weerakoon
- Prof. J.J. Wijetunge
- Prof.(Mrs) K.G.N.Nanayakkara
- Dr. (Mrs) W.C.T.K. Gunawardana
- Dr. Panduka Neluwala
- Dr. (Mrs) M. M. G. T. De Silva
- Mr. D.D. Dias (Lecturer-in-charge)
Nonacademic Staff
- Mr. N.A.S.C.B. Ekanayake
- Ms. D.M.A.D. Dasanayake
- Mr. K.R.N. Abeysinghe
- Mr. W.C. Warnasuriya
- Mr. A.M.P.G.S. Ekanayake
- Mr. M.G.P.K. Hettimulla
Inquiries
Mr. N.A.S.C.B. Ekanayake
+94 81 2393560,
+94 81 2393562
GEOTECHNICAL LABORATORY
The Geotechnical Laboratory is equipped with facilities to carry out field and laboratory tests in the specialised fields of geotechnical engineering and engineering geology. Field tests include SPT, SCPT, DCPT, Seismic Refraction Test, Resistivity Test and, laboratory tests include Classification Tests, UU, CU and CD Triaxial Tests, Direct Shear Test, Consolidation Test, Compaction Test, CBR test, Permeability Test, Rock Shear Test, LAAV Test, Slake Durability Test, Soundness Test and Determination of Shear Wave Velocity. In addition, the laboratory provides computing services using state of the art software such as FLAC, Geostudio and Plaxis for the numerical analysis of many geotechnical engineering problems. A wide range of consultancy services is offered to the industry in all aspects of geotechnical analysis, design and site investigation.
Specialized Services
- Site investigation & feasibility studies
- Design of earth structures, foundations
- Special foundations
- Slope stabilization
- Ground improvement techniques
- Instrumentation and monitoring
- Model testing
- Computer aided design and analysis
Laboratory & Field
- Soil classification and physical tests (Particle size, Atterberg Limits, Specific Gravity, Shrinkage, Insitu density)
- Shear strength tests: (Direct shear, Triaxial tests (CU,CD,UU))
- Compressibility & drainage tests: (1D consolidation, compaction, CBR, Permeability)
- Rock tests: (uniaxial comp./tensile tests, triaxial, LAAV, Absorption, Point load, ultrasonic properties, soundness)
- Field tests: (Plate load, Vane shear, Static/Dynamic cone Penetration, SPT, Vibration measurements, rock direct shear )
- Drilling & sampling: (wash boring, rotary drilling, mechanized auger drilling, hollow stem auguring, Soil and Rock sampling using thin walled Piston sampler, Shelby tube, Denison sampler)
- Geophysical exploration: (resistivity, seismic refraction tests)
- Field instrumentation & monitoring: (settlement measurements, water level indicators, piezometers, extensometers, GPS instruments)
- Investigations for landslides, quarries and construction materials
Equipment/ Testing Facilities
Triaxial Testing Machine
Automatic Soil Compactor
Direct Shear Testing Machine
Field Density Test Set
Consolidation Testing Apparatus
Point Load Testing Apparatus
Rock shear testing
One-chamber diffusion apparatus for soil-gas diffusivity measurements
Plate load testing
Monitoring movement using extensometers
Drilling
Static Cone Penetration Testing
Research activities
- Soil improvement -chemical stabilization
- Alkali activated Geopolymers as borehole well cement
- Mechanical integrity of well cement
- Mechanical method of ground improvement
- Feasibility of using pozzolanic materials (fly ash, silica fume, etc.) for geotechncial applications
- Geotechnical characteristics and modelling of municipal solid waste dump sites
- Shear strength characteristics and degradation of ballast in railroads
- Use of geomats for reinforcing earth
- Soil-gas diffusivity measurements and modeling in differently-characterized soils
- Diffusivity-based characterization of porous media for earth and space-based applications
Services to the Industry
With the advent of this Environmental Engineering Laboratory which is affiliated to the top seated university of Sri Lanka, University of Peradeniya, it is opened an avenue not only to research personnel but also to the industry as an independent and high principled analytical service establishment.
- Laboratory testing of soils and rocks
- Site investigation
- Analysis and design of foundations, slopes and retaining structures.
- Monitoring of slopes
- Evaluation of proposals
- Technical assistance for national projects
- Applicability of washed sand in construction industry: Geotechnical perspectivesojects
Staff
Academic Staff
- Prof. L.C. Kurukulasuriya
- Prof. M.C.M. Nasvi (Lecturer-in-charge)
- Dr. (Mrs) D. de S. Udakara
- Dr. A.M.R.G.Athapaththu
- Dr. S.K. Navaratnarajah
Nonacademic Staff
- Mr. A.G.D.L.Wijerathne
- Ms. N. W. G. R. V. Hathurusinghe
- Mr.W.M.D.T.Bandara
- Mr.P.G.I.Lal Bandara
- Mr. N.L.C.A.K.Nanayakkara
Inquiries
Mr. A.D.G.L.Wijerathne
+94 81 239 3510
MATERIALS LABORATORY
The Materials Laboratory is a leading laboratory in the Civil Engineering Department. It is equipped with numerous facilities for investigation of physical, mechanical and durability characteristics of diverse types of engineering materials. The materials that the laboratory can handle are inclusive of cementitious products, concrete, metals, timber, polymers, ceramics, and asphalt. The laboratory also provides consultancy services to the industry.
Specialized Services
- Appraisal of existing structures (Stress analysis of Stupas such as Jetavanaya, Abhayagiriya, Tissamaharamaya and Mirisawetiya, monitoring movements of national monuments etc.)
Laboratory & Field Test
- Material and component testing facilities ( a 1000 kN universal testing machine, a 10 kNm torsion machine and a 2000 kN compression testing machine)