Academic Staff

Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Hapugala, Wakwella, Galle.

Telephone :

• PhD in Civil and Environmental Engineering from Saitama University, Japan (2008)
• M. Eng in Structural Engineering from Saitama University, Japan (2005)
• PG. Dip in Structural Engineering Design from University of Moratuwa, Sri Lanka (2002)
• B.Sc. with First Class Honours Degree in Civil Engineering from University of Moratuwa, Sri Lanka (2000)

• Professor, Department of Civil and Environmental Engineering, University of Ruhuna ( November 2019-to date)
• Deputy Senior Student Counselor, Faculty of Engineering, University of Ruhuna (March 2018 – February 2019)
• Head, Department of Civil and Environmental Engineering, University of Ruhuna (October 2014 – October 2017)
• Senior Lecturer Grade I, Department of Civil and Environmental Engineering, University of Ruhuna (April 2014 – November 2019)
• Senior Lecturer Grade II, Department of Civil and Environmental Engineering, University of Ruhuna (April 2008- March 2014)
• Lecturer, Department of Civil and Environmental Engineering, University of Ruhuna, Sri Lanka (March 2001- March 2008) 
• Assistant Lecturer, Department of Civil and Environmental Engineering, University of Ruhuna, Sri Lanka (September 2000- March 2001)
• Instructor, Department of Civil and Environmental Engineering, University of Ruhuna, Sri Lanka (August 2000 - September 2000)
• Instructor, Department of Civil Engineering, University of Moratuwa, Sri Lanka (July 2000- August 2000)

• US-SL Fulbright Advanced Research and Lecturing Award by J. William Fulbright Foreign Scholarship Board in USA (November 2018)
• Vice Chancellor Award for the Most Outstanding Convener of International Conferences / Promotor of International Relations of the Year 2017, University of Ruhuna
• The Senate, University of Ruhuna offer letter of Commendation for the research project conducted through the Transforming University of Ruhuna to International Status (TURIS) Project funded by Government of Sri Lanka (2016)
• KUBOTA Scholarship awarded by Nippon Koei Co. Ltd , Japan (2007)
• TAKASE Scholarship awarded by Takase Co-operation Ltd, Japan (2006)
• Honors Scholarship awarded by The Association of International Education, Japan (2005)
• TAKASE Scholarship awarded by Takase Co-operation Ltd, Japan (2003)
• Mahapola Scholarship granted by the government of Sri Lanka (1995 )

• Chartered Engineer, Institution of Engineers Sri Lanka (IESL) (since 1st July 2011)
• Fellow, Institution of Engineers Sri Lanka (IESL) (since 6^th  November 2020)
• Member, Society of Structural Engineers Sri Lanka (SSE-SL) (since 26th May 2009)
• Member, Japan Concrete Institute

• Seismic vulnerability assessment and retrofitting of existing buildings
• Earthquake resistance design for concrete structures
• Durability of Reinforced Concrete and Prestressed Concrete Structures
• Research on High Strength Concrete and High Performance Concrete
• Research on Bridge Management Systems for RC and PC Bridges
• Structures using Innovative Materials
• Structural Assessment and Repair & Retrofitting

 Modules Taught

• Concrete Technology (Semester 3)
• Structural Analysis (Semester 4)
• Design of Timber and Masonry Structures (Semester 5)

• Design of Concrete Structures II Pre-stressed Concrete and Water Retaining, Semester 6)

Research Projects

• Investigation on Techniques to reduce damages due vibration induced on Construction Sites (co-supervised) (2013-2014)
• Exposing level of noise & vibration among construction workers and their health effects (co-supervised) (2013-2014)
• Development of FEM model to investigate performance of Un-Reinforced Masonry (URM) & Retrofitted Walls  against Seismic Activities (2013-2014)
• Development of Bridge Management Tool (Phase 2: In-cooperating deterioration prediction model ) (2013-2014)
• Investigation on methods to improve health and safety practices in construction sites (2012-2013)
• Development of Bridge Management System for Sri Lanka (2012-2013)
• Use of Structural Optimization for Earthquake Resiliency of Masonry Buildings (2012-2013)
• Investigation on relation between industrial noise and peoples response (2011-12)
• Investigation on Performance of structures for blast induced vibration and application of Control techniques (2011-12)
• Pervious Recycled Aggregate Concrete Materials for Sustainable Built Environment (2011-12)
• Strengthening Load Bearing Masonry Wall Panels using Locally available Materials (2011-12)
• Condition Assessment, damage detection, life cycle evaluation and 
• repair of existing Structures in Sri Lanka due to Chloride Attack (2011-12)
• Use of Recycled Short Fibers in Structural Concrete to Enhance Mechanical Properties (2011-12)
• Service Life Prediction of RC Structures Exposed to Chloride Environments (2010-11)
• Investigation of Optimum Utilization of Rice-Husk-Ash to enhance the Mechanical Properties of Concrete (2010-11)
• Investigation into Time-dependent Deformation and Drying Shrinkage in Concrete with Composite Mineral Admixtures (2010-11)
• Investigation of the Threshold for Surface Cracks due to Blast Vibrations (2010-11)
• Investigation of use of Wall Surface Materials to reduce Industrial Noise (2010-11)
• Investigation of Mechanical Properties and Durability of Concrete Containing Rice Husk Ash (June, 2010)
• Condition Assessment of Reinforced Concrete Structures Exposed to Chloride Environment and Service Life Prediction (June, 2010)
• Evaluation of a Bridge Management System for Reinforced Concrete and Prestressed Concrete Bridges (May, 2009)
• Structural aspects of post-tsunami construction (buildings) against natural disasters (May, 2008)
• Review on existing methods of masonry construction (buildings) against earthquakes and their application to Sri Lanka (May, 2008)

• Visiting Research Scholar, Department of Civil and Environmental Engineering, School of Engineering, University of Connecticut, Storrs, USA (March 2019 to September 2019)
• Conference Co-chair, 10th International Conference on Structural Engineering and Construction Management (ICSECM), 12th to 14th December, 2019
• Member of the Committee appointed by Director General, National Building and Research Organization for the Development of Technical Guidelines on Building Demolishing Work in Sri Lanka, January 2019
• Reviewer, Programme Review, Non-State Higher Education Division, Ministry of Higher Education & Highways, Sri Lanka, (October, 2017 to-date)(Assignment completed: Civil Engineering programme at Colombo International Nautical and Engineering College and Sri Lanka Telecom Campus)

• Reviewer, Programme Review, Quality Assurance and Accreditation Council, University Grants Commission, Sri Lanka, (July, 2017 to-date)(Assignment completed: Faculty of Arts at University of Colombo and University of Kelaniya, Faculty of Management Studies at Rajarata University of Sri Lanka, University of Sri Jayawardanapura, South Easten University of Sri Lanka, Faculty of Medicine, University of Colombo)

• Conference Co-chair, 9th International Conference on Sustainable Built Environment (ICSBE), 13th to 15th December, 2018
• Conference Co-chair, 8th International Conference on Structural Engineering and Construction Management (ICSECM), 7th to 9th December, 2017
• Conference Co-chair, 5th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS-2017), Faculty of Engineering, University of Ruhuna, 15th March 2017
• Member of the Evaluation Panel, Accreditation of Engineering Programmes, Institution of Engineers Sri Lanka (IESL) Accreditation Board, Sri Lanka (December, 2016 to-date)
• Member, Research Council, Construction Industry Development Auth6ority (CIDA), Ministry of Housing & Construction, Colombo, Sri Lanka (April 2016 – to date)
• Conference Co-chair, 4th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS-2016), Faculty of Engineering, University of Ruhuna, 16th March 2016
• Conference Co-chair, 7th International Conference on Sustainable Built Environment (ICSBE), 16h to 18th December, 2016
• Member, Scientific Committee, 7th International Conference on Sustainable Built Environment (ICSBE), 16h to 18th December, 2016

• Participant of workshop on “Train as Trainers”, by the Institution of Engineers Sri Lanka (IESL) on from 29th to 30th January 2020
• Participant of workshop on “Training for Panel Members Undertaking Assessment Visits”, by the Institution of Engineers Sri Lanka (IESL) on 28th January 2020
• Participant of workshop on “Outcome Based Curriculum Development for Engineering Programme”, by the Institution of Engineers Sri Lanka (IESL) on 27th January 2020
• Participant of workshop on “Outcome Based Curriculum Development for Engineering Programme”, by the Faculty of Engineering, University of Ruhuna from 20th to 22nd January, 2017
• Participant and presented a paper at the 7th International Conference on Building Resilience; Using scientific knowledge to inform policy and practice in disaster risk reduction, ICBR2017, 27 – 29 November 2017, Bangkok, Thailand
• Participant of the “National Policies – Voice of Engineers”, IESL – National Engineering Conference 2016 held on 19th August 2016 at Waters Edge, Battaramulla, Colombo
• Participant of the Council on Tall Buildings and Urban Habitat (CTBUH) Colombo Forum, under the theme of ‘Collaborative Approaches in Tall Building Design’ on the 27th June 2016, at the Kings Court, Cinnamon Lakeside Hotel, Colombo.
• Participant of “Programme Reviewer Training Workshop” organized by Quality Assurance and Accreditation Council, University Grants Commission, Colombo, Sri Lanka, on 15th June 2016 at the Hotel Berjaya, Mount Lavinia
• Participant of “Programme Evaluators training programme” for forthcoming Accreditation Visits organized by the Institution of Engineers, Sri Lanka (IESL) held on 2nd May 2016 at the IESL Headquarters Building, Colombo
• Participant of “Training Workshop on Institutional Review” organized by Quality Assurance and Accreditation Council, University Grants Commission, Colombo, Sri Lanka, on 5th October 2015 at Tamarind Tree Hotel, Katunayake.

Journal:

1. U.D.P.M. Gunasinghe1 and Sudhira De Silva, “Influence of External and Internal Factors on Workmanship in Construction Industry”, CIDA Journal, Journal of the Construction Industry Development Authority (CIDA), Issue XVII, ISSN: 2012-8509, February 2020, pp. 16-22 
2. Muthumala C.K, De Silva Sudhira, Aruna Kumara K.K.I.U and Alwis P.L.A.G, “Classification of Finger Joint Timber Based on Strength Index”, Vidyodaya Journal of Science, Vol. 22, No. 02 , 2019, pp. 32-42 
3. Sudhira De Silva and N.T. Abeygunawardana, “Performance of Ferro-cement Strengthened Unreinforced Masonry Walls against Reversed Cyclic Loading”, “ENGINEER”, Journal of the Institution of Engineers, Sri Lanka (IESL), Vol.: LII, No. 03, October 2019, pp. 13-20
4. Sudhira De Silva and Vijini Utpala, “Suitability of Finger Jointed Structural Timber for Construction”, International Journal of Structural Engineering and Applied Mechanics, Issue 3 , Vol. 2, ISSN: 2630-5763, October2019, pp. 131-142, doi.org/10.31462/jseam.2019.03131142
5. W.S.W.Mendis, G.S.Y.De Silva and G. H. M. J. Subashi De Silva, “ Performance of un-reinforced burned clay brick masonry walls retrofitted with locally available materials” , Journal of the National Science Foundation of Sri Lanka, Vol. 47, Issue 1, March 2019, pp. .29-38
6. Sudhira De Silva and T Prasanthan; “Application of Recycled PET Fibers for Concrete Floors”, “ENGINEER”, Journal of the Institution of Engineers, Sri Lanka (IESL), Vol.: LII, No. 01, January 2019, pp. 21-27
7. Muthumala C.K, De Silva Sudhira, Aruna Kumara K.K.I.U and Alwis P.L.A.G, “Investigate the most suitable glue type for finger-joints production in Sri Lanka”, Research Journal of Agriculture and Forestry Sciences, Vol. 6(11), 6-9, November (2018), ISSN 2320 – 6063, pp. 6-9 
8. Hashini Prabodha and Sudhira De Silva, “Feasibility of Non-class Timber as Structural Material in Construction Industry”, CIDA Journal, Journal of the Construction Industry Development Authority (CIDA), Issue XVI, ISSN: 2012-8509, 2018, pp. 1-6 
9. Sudhira De Silva and R. M. M. P. Rathnayaka, “Use of Recycled Polyethylene Terephthalate (PET) Fibers in Concrete Cylindrical Pipes”, “ENGINEER”, Journal of the Institution of Engineers, Sri Lanka (IESL) Vol. LI, No. 2, April 2018, pp. 15-22 
10. De Silva, G.S.Y., Subashi De Silva, G.H.M.J., Padmal, H., Assessment Method for Seismic Vulnerability of Old Masonry Buildings in Sri Lanka, Procedia Engineering, Elsevier (2017) 212, pp 61-68 
11. Pushpakumara B.H.J., Sudhira De Silva and Subashi De Silva G.H.M.J., “Visual inspection and non-destructive tests-based rating method for concrete bridges”, International Journal of Structural Engineering, Vol. 8, No. 1, 2017, pp. 74-91, DOI: 10.1504/IJSTRUCTE.2017.081672  
12. G.H.M.J. Subashi De Silva and G.S.Y. De Silva and Madhushanka J. G. N. I., “Assessment of Whole Body Vibration Exposure Levels of Operators in Construction Machineries”, CIDA Journal, Journal of the Construction Industry Development Authority (CIDA), Issue XIV, ISSN: 2012-8509, 2016, pp. 37-44 
13. W.A.P.D. Jayawardana, G.H.M.J. Subashi De Silva and G.S.Y. De Silva, “Effectiveness of a Trench Filled with Waste Material in Reducing the Propagation of Ground Vibration Induced by Soil Roller Compaction” “ENGINEER”, Journal of the Institution of Engineers, Sri Lanka (IESL) Vol. XLIX, No. 2, 2016, pp. 17-24

Conference Proceedings:                                                                      

1. P.P.C. Saumyasiri and Sudhira De Silva, “Application of Blended Cement Mix Fiber Concrete For Road Pavements”, 9th International Conference on Sustainable Built Environment (ICSBE- 2018), Kandy, Sri Lanka, December 2018, ICSECM2018-143/109-115
2. U.D.P.M. Gunasinghe and G.S.Y. De Silva, “Factors Influencing the Workmanship in their Priority Order Analysed Based on Primary Data”, 9th International Conference on Sustainable Built Environment (ICSBE- 2018), Kandy, Sri Lanka, December 2018, ICSECM2018-119/71-77
3. Chaminda Muthumala, Sudhira De Silva, P.L.A.G Alwis and K.K.I.U. Arunakumara, “Identification of Joint Efficiencies in Finger Jointed Timber Species”, 9th International Conference on Sustainable Built Environment (ICSBE- 2018), Kandy, Sri Lanka, December 2018, ICSECM2018-133/103-109
4. Muthmala C.K., Sudhira De Silva, Alwis P.L.A.G., Aruna Kumara K.K.I.U., “Properties of finger joined hardwood and softwood timber species in Sri Lanka”, 8th International Conference on Structural Engineering and Construction Management (ICSECM- 2017), Kandy, Sri Lanka, December 2017, ICSECM2017-164/106-111
5. De Silva D.K.U., Sudhira De Silva, Subashi De Silva G.H.M.J., “Assessment of masonry buildings in expansive soil”, 8th International Conference on Structural Engineering and Construction Management (ICSECM- 2017), Kandy, Sri Lanka, December 2017, ICSECM2017-144/88-92
6. Probodha J.P.T.H., Sudhira De Silva., Subashi De Silva G.H.M.J., Muthmala C.K., “Application of non class timber in construction industry”, 8th International Conference on Structural Engineering and Construction Management (ICSECM- 2017), Kandy, Sri Lanka, December 2017, ICSECM2017-143/82-87
7. Liyanage B.L.V.U.,  Sudhira De Silva, Subashi De Silva G.H.M.J., Muthmala C.K.,” Utilization of waste timber in construction industry”, 8th International Conference on Structural Engineering and Construction Management (ICSECM- 2017), Kandy, Sri Lanka, December 2017, ICSECM2017-142
8. Liyanaarachchi L.A.A.T., Sudhira De Silva, Subashi De Silva G.H.M.J., “Impact of blended cement on corrosion reinforced concrete due to wetting and drying at tropical environment”, 8th International Conference on Structural Engineering and Construction Management (ICSECM- 2017), Kandy, Sri Lanka, December 2017, ICSECM2017-119/79-82
9. Rathnaweera Y.P.B., Sudhira De Silva, Subashi De Silva G.H.M.J.,” Polypropylene  fiber mixed blended cement action for plastic shrinkage of concrete” ”, 8th International Conference on Structural Engineering and Construction Management (ICSECM- 2017), Kandy, Sri Lanka, December 2017, ICSECM2017-117/57-61
10. Gunasinghe U.D.P.M., Sudhira De Silva, Subashi De Silva G.H.M.J., “A categorization of factors influencing workmanship through a comprehensive analysis on secondary information”, 8th International Conference on Structural Engineering and Construction Management (ICSECM- 2017), Kandy, Sri Lanka, December 2017, ICSECM2017-91/42-48
11. BHJ Pushpakumara, WS Wasundara Mendis and Sudhira De Silva, “Bamboo as a New Retrofitting Material for Existing Masonry Walls with Improving the Walls Aesthetic View”, Proceedings in Engineering, Built Environment and Spatial Sciences, 9th International Research Conference, Kothalawala Defence University, 2016, pp. 320-324
12. Kumara W. D. G. L., De Silva G. S. Y. and Subashi De Silva G. H. M. J., “Incorporating Natural Fibers for Precast Slab Panels”, Special Session on Sustainable Building and Infrastructure, Proceedings of 7th International Conference on Sustainable Built Environment (ICSBE-2016), Kandy, Sri Lanka, December 2016, ICSBE2016/236
13. Padmal H. M. S. S., De Silva G. S. Y. and Subashi De Silva G. H. M. J., “Development of Expert System for the Seismic Vulnerability of Existing Masonry Structure”, Special Session on Sustainable Building and Infrastructure, Proceedings of 7th International Conference on Sustainable Built Environment (ICSBE-2016), Kandy, Sri Lanka, December 2016, ICSBE2016/229
14. Sathesrajkumar S., De Silva G. S. Y. and Subashi De Silva G. H. M. J., “Performances of Finger Jointed Timber Boards with Different Joint Configurations”, Special Session on Sustainable Building and Infrastructure, Proceedings of 7th International Conference on Sustainable Built Environment (ICSBE-2016), Kandy, Sri Lanka, December 2016, ICSBE2016/228
15. Vivek S., De Silva G. S. Y. and Subashi De Silva G. H. M. J., “Finger Joints and their Structural Performance in Different Exposure Conditions”, Special Session on Sustainable Building and Infrastructure, Proceedings of 7th International Conference on Sustainable Built Environment (ICSBE-2016), Kandy, Sri Lanka, December 2016, ICSBE2016/225
16. Prasanthan T., De Silva G. S. Y. and Subashi De Silva G. H. M. J., “Incorporating Recycled PET Fibresfor Green Roof Slab Panels”, Special Session on Sustainable Building and Infrastructure, Proceedings of 7th International Conference on Sustainable Built Environment (ICSBE-2016), Kandy, Sri Lanka, December 2016, ICSBE2016/224
17. De Silva Sudhira and Ramesh B. Malla, “Application of Seismic Belts for Strengthening of Un-Reinforced Masonry Wall Panels with Openings”, The Proceedings of the 9th ASNEngr/CAN-USA Annual Conference, Humble, TX., U.S.A., Sept 17-18, 2016, pp.  xx
18. K.G.Sandya Kumudini, De Silva Subashi and De Silva Sudhira, “Investigation on Occupants’ satisfaction in natural ventilation in office building”, The Proceedings of the 4th International Symposium on, Advances in Civil and Environmental Practices for sustainable Development (ACEPS-2016), University of Ruhuna, Hapugala, Galle, Sri Lanka, 3rd March 2016, pp. 265-271
19. Rathnyayaka R.M.M.P., De Silva Sudhira and De Silva Subashi, “Application of Recycled Polyethylene Terephthalate (PET) Fibers to produce Fiber Reinforced Concrete pipes”, The Proceedings of the 4th International Symposium on, Advances in Civil and Environmental Practices for sustainable Development (ACEPS-2016), University of Ruhuna, Hapugala, Galle, Sri Lanka, 3rd March 2016, pp. 257-264

Abstracts:

1. De Silva Sudhira and Ramesh B. Malla, “Application of Seismic Belts for Strengthening of Un-Reinforced Masonry Wall Panels with Openings”, The Proceedings of the 9th ASNEngr/CAN-USA Annual Conference, Humble, TX., U.S.A., Sept 17-18, 2016, (Submitted and Presented by the First Author as a Video Conferences Presentation)
2. Muthumala C.K, De Silva Sudhira, Aruna Kumara K.K.I.U and Alwis P.L.A.G, “Identifying the Strength grade for  Finger jointed timber species according to BS 5268-2:2002”, International Conference on Sustainable Built Environment-University of Sri Jayewardenepura, 2018, ISSN 2235-9427  pp. 87
3. Muthumala C.K, De Silva Sudhira, Alwis P.L.A.G  and Arunakumara K.K.I.U, ”Evaluation of the major failure modes of the non structural finger jointed timber species under tensile test”, International Symposium on Agriculture & Environment-University of Ruhuna-2019, ISSN 1800-4830 pp. 80
4. Muthumala C.K, De Silva Sudhira, Arunakumara K.K.I.U and Alwis P.L.A.G  ”Finger Jointed Wood Products: A New Platform for Sustainable Use of Timber”, Proceedings of the Association for Tropical Biology and Conservation Asia Pacific Conference, 10-13 September 2019, Thulhiriya, Sri Lanka, 216/p. 241

Invited Presentations:

1. Invited Keynote presentation on “Recent Technology Development for Durability of Concrete Bridges” at Holcim  Innovation and Application Centre (I&A), Colombo, Sri Lanka, 26th May 2016
2. International Symposium on Measures for Hot Weather Concreting in Asian Countries and The Issue Analysis Based on Climate and Materials, 19th – 21st September 2017, Sirindhorn International Institute of Technology, Thammasat University, Thailand. Title: “Development of Repair Mortar for de-laminated areas of corroded concrete members”
3. Invited Keynote presentation on “Vulnerability Assessment of Masonry Buildings against Natural Disasters”,  at the Department of Civil and Environmental Engineering, Saitama University, Japan on 23rd October 2018
4. International Seminar on Deterioration of Concrete Structures and Application of Mineral Admixture in Hot Weather Condition, 25th to 27th September 2018 at National University of Civil Engineering, Hanoi, Vietnam, Keynote presentation, Title: “Condition assessment and damage detection of existing bridges in Sri Lanka due to corrosion”.
5. Resource Person for the  Structures and Applied Mechanics Seminar Series conducted by the  Department of Civil and Environmental Engineering, University of Connecticut, Storrs, USA on 19th April 2019, Presentation Title: “Assessment of Vulnerability of Masonry Buildings against Natural Disasters”,
6. Resource Person for the  Structures and Applied Mechanics Seminar Series,  Department of Civil and Environmental Engineering, University of Connecticut, Storrs, USA on 13th September 2019, Presentation Title: “Masonry Building Failures and Unreinforced Masonry Design Approaches World-wide : A State-of-the-Art Review”,