Biography

Professor C. G. Koh graduated with First Class Honours in 1979 from the then University of Singapore. Upon completion of his national service, he joined the NUS as a senior tutor in 1981. Subsequently, he went on a NUS overseas scholarship to further his graduate study at the University of California, Berkeley, where he obtained his M.S. and Ph.D. in 1983 and 1986, respectively. His Ph.D. thesis was entitled "Modelling of Dynamic Response of Elastomeric Isolation Bearings".

Since his senior-tutor days, Professor Koh's research interest has primarily been in structural dynamics, with applications on vibration isolation and control, system identification, nonlinear dynamic analysis, and experimental dynamics. To his credit, he has more than 130 international journal papers and conference papers and three invited book chapter. His papers have been well cited, with more than 200 SCI-citations since 1993. He was promoted from senior lecturer-ship to become an associate professor in July 1998. He served as a Sub-Dean of Engineering for two years and Deputy Head (Research) of the Department of Civil Engineering for five years. He is currently the Vice Dean (Research) of the Faculty of Engineering.

Professor Koh is active in the professional circle, serving in several engineering committees and being the editor of the IES Journal (Civil & Structural Engineering). He is also a registered professional engineer (civil) and has been engaged as an advisor/consultant in numerous projects including vibration analysis/measurement of many major infrastructure developments (e.g. tunnel and viaduct train-track systems, and ten high-tech plants in Singapore, Malaysia and China).

Qualifications

• Ph.D. University of California, Berkeley, USA 1986
• M.S. University of California, Berkeley, USA 1983
• M.Eng. National University of Singapore 1983
• B.Eng. (Hons 1) University of Singapore 1979
• P.Eng. Professional Engineers Board, Singapore 1995

Honours & Awards

• Marie Curie Fellowship by the Commission of European Communities, 1993/94
• Invited to contribute a chapter to a book on "Structural Dynamic Systems: Computational Techniques and Optimization", 1995
• IES Prestigious Publication (Theory) Award, 1997
• Keynote paper at the 2nd International Symposium on Mechanical Vibrations:" Challenges in parameter identification of large structural dynamics systems", Islamabab, Sep. 2000
• Keynote paper at the 7th International Conference on Inspection, Appraisal, Repairs and Maintenance of Buildings and Structures: "Vibration-based inspection of structures: Computational challenges and strategies", Nottingham, U.K., Sep.2001
• Keynote lecture at 1st International Conference on Vulnerability of 20th Century Heritage to Hazards and Prevention Measures: "Vibration-based assessment of old structures", Rhodes, Greece, Apr. 2002.
• Keynote paper at 3rd International Conference on New Dimensions in Bridges: "Structural health monitoring: a perspective from system identification", Kuala Lumpur, Malaysia, Apr. 2003.
• Keynote paper at 3rd International Workshop on Structural Health Monitoring of Bridges / Colloquium on Bridge Vibration: "Structural parameter identification: A divide-and-conquer approach", Kitami, Japan, Sep. 2003.
• Keynote paper at the 9th International Conference on Inspection, Appraisal, Repairs and Maintenance of Buildings and Structures: "Damage detection of structures using a modified genetic algorithm", Fuzhou, China, Oct. 2005
• Keynote at International Symposium on Innovation & Sustainability of Structures in Civil Engineering: "Innovative design of micro-vibration sensitive factories", Nanjing, China, Nov. 2005.
• Associate Editor for international journal on "Structural Health Monitoring"
• Editorial Board Member for international journal on “Smart Structures and Systems”.
• Teaching Commendation Award in 3 years since 2001

Professional Activities

• Council member, International Society for Structural Health Monitoring of Intelligent Infrastructure
• Dynamics Committee, American Society of Civil Engineers
• Founding member and Vice President of the Earthquake Society (Singapore)

Teaching areas

• Engineering Dynamics (Level 1)
• Structural Analysis (Level 2)
• Structural Dynamics (Level 4)
• Finite Element Methods (Level 4 and Graduate)
• Experimental Methods in Civil Engineering (Graduate)
• Numerical Methods for Engineering Mechanics (Graduate -- Advanced)
• Integrated Design Project (Level 4)

Research Interest

• Nonlinear dynamic analysis (offshore structures, concrete damage, cable dynamics)
• System identification and health monitoring of structural systems
• Vibration isolation and passive control
• Dynamic soil-structure interaction
• Moving element method

Selected Publications

1. C. G. Koh and J. M. Kelly, "Viscoelastic stability model for elastomeric isolation bearings", Journal of Structural Engineering, ASCE, V115, 1989, pp. 285-302.
2. C. G. Koh and J. M. Kelly, “Applicability of the Southwell plot to shear deformable columns”. Journal of Testing and Evaluation, ASTM, V17, 1989, pp. 287-291.
3. C. G. Koh and J. M Kelly, "Application of fractional derivatives to seismic analysis of base-isolated models", Earthquake Engineering & Structural Dynamics, V19, 1990, pp. 229-241.
4. C. G. Koh, T. Balendra and L.M. See, "Estimation of structural parameters in time domain: A substructure approach", Earthquake Engineering & Structural Dynamics, V20, 1991, pp. 787-801.
5. C. G. Koh, S. Mahatma and C. M. Wang, "Theoretical and experimental studies on rectangular liquid dampers under arbitrary excitations", Earthquake Engineering & Structural Dynamics, V23, 1994, pp. 17-31
6. C. G. Koh and L. M. See, "Identification and uncertainty estimation of structural parameters", Journal of Engineering Mechanics, ASCE, V120, 1994, pp. 1219-1236.
7. C. G. Koh, L.M. See and T. Balendra, "Damage detection of buildings: numerical and experimental studies", Journal of Structural Engineering, ASCE, V121, 1995, pp. 1155-1160.
8. C. G. Koh, D. R. J. Owen and D. Peric, "Explicit dynamic analysis of elastic-plastic laminated composite shells: Implementation of non-iterative stress update schemes for the Hoffman yield criterion", Computational Mechanics, V16, 1995, pp. 307-314.
9. C. G. Koh, S. Mahatma and C. M. Wang, “Reduction of structural vibrations by multiple-mode liquid dampers”, Engineering Structures, 17, 1995, pp. 122-128.
10. C. G. Koh, K. K. Ang and R. Xu, "An eigen-force method for finite element analysis and reanalysis", International Journal for Numerical Methods in Engineering, V40, 1997, pp. 777-796.
11. C. G. Koh, Y. Zhang and S. T. Quek, "Low-tension cable dynamics: numerical and experimental studies", Journal of Engineering Mechanics, ASCE, V125, 1999, pp. 347-354.
12. C. G. Koh, B. Hong and C. Y. Liaw, "Parameter identification of large structural systems in time domain", Journal of Structural Engineering, ASCE, V126, 2000, pp.957-963.
13. C. G. Koh and H. L. Lim, “Analytical solution for compression stiffness of bonded rectangular layers”, International Journal of Solids and Structures, V38, 2001, pp. 445-455.
14. C. G. Koh, J. S. Y. Ong, D. K. H. Chua and J. Feng, “Moving element method for train-track dynamics”, International Journal for Numerical Methods in Engineering, V56, 2003, pp. 1549-1567.
15. C. G. Koh, Y. F. Chen and C. Y. Liaw, “A hybrid computational strategy for identification of structural parameters”, Computers & Structures, V81, 2003, pp. 107-117.
16. C. G. Koh, G. Q. Qiao and S. T. Quek, “Damage identification of structural members: Numerical and experimental studies”, Structural Health Monitoring, V2, 2003, pp. 41-55.
17. C. G. Koh and K. Shankar, “A substructural identification method without interface measurement”, Journal of Engineering Mechanics, ASCE, V129, 2003, pp. 769-777.
18. C. G. Koh, K. K. Ang and P. F. Chan, “Dynamic analysis of shell structures with application to blast resistant doors”, Journal of Shock and Vibration, V10, 2003, pp. 269-279.
19. C. G. Koh and Y. Rong, “Dynamic analysis of large displacement cable motion with experimental verification”, Journal of Sound and Vibration, 2004 (In press).
20. C. G. Koh, B. Hong and C. Y. Liaw, “Substructural and progressive structural identification methods”, Engineering Structures, V25, 2003, pp. 1551-1563.
21. Z. S. Liu, S. Swaddiwudhipong and C. G. Koh, "High velocity impact dynamic response of structures using SPH method", International Journal of Computational Engineering Sciences (IJCES), V5, 2004, pp. 315-326.
22. H. Chen, X. Zhou, C. Y. Liaw and C. G. Koh, "Kinetic analysis of protein folding lattice models", Modern Physics Letters B, V18, 2004, pp. 163-172.
23. K. F. Tee, C. G. Koh and S. T. Quek, "Substructural first- and second-order model identification for structural damage assessment", Earthquake Engineering & Structural Dynamics, V34, 2005, pp. 1755-1775.
24. C. G. Koh, P. P. Sze and T. T. Deng, "Numerical and analytical methods for in-plane dynamic response of annular disk", International Journal of Solids and Structures, V43, 2006, pp. 112-131.
25. M. J. Perry, C. G. Koh and Y. S. Choo, "Modified genetic algorithm strategy for structural identification". Computers & Structures, V84, 2006, pp. 529-540.