Koh Chan Ghee

Professor, Department of Civil and Environmental Engineering

Director (Research), Coastal Protection and Flood Resilience Institute Singapore. Director, Centre for Hazards Research

Biography

Dr. Koh is a Professor of Civil Engineering and 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”.

Prof. Koh’s research interests are primarily in structural dynamics, with emphasis on vibration mitigation, structural monitoring and system identification, offshore dynamics and hydrodynamics.  He has published about 300 international journal papers and conference papers, seven invited book chapters and a book. He has delivered more than 25 keynotes and many invited presentations in countries such as USA, Canada, UK, China, Japan, Australia, Greece, Portugal, Korea and India.  He was a recipient of the prestigious Marie Curie Fellowship awarded by the Commission of the European Communities, as well as the IES Best Paper Award.   He has been active in securing competitive university and external grants for research projects – more than S$13M including about S$7M as the principal investigator. The research projects include structural health monitoring, vibration mitigation, blast and seismic analysis, and offshore/marine engineering.

Prof. Koh has been active in the professional community.  He is currently serving in four journal editorial boards, including as an associate editor of a US-based journal on Structural Health Monitoring.  His expertise in structural engineering (structural dynamics in particular) has been well sought after by the industry.  He has conducted more than 40 short courses for the industry including about 20 on seismic analysis and design (EC8).  He has served as advisor/specialist in more than 130 infrastructure and industrial projects, including vibration studies of many major developments such as high-tech buildings, train track systems, bridges and offshore systems, in Singapore and the region.

Prof. Koh was the Director of LRF Institute for the Public Understanding of Risk from May 2019 to June 2023.  Currently he is the Director (Research) of the recently formed Coastal Protection and Flood Resilience Institute Singapore and the Director of Centre for Hazards Research at NUS.

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

  • Top-2% scientist list by Stanford University (2022)
  • Top-3 Project Award by Singapore Maritime Institute (2015)
  • Marie Curie Fellowship by the Commission of European Communities, 1993/94
  • IES Prestigious Publication (Theory) Award, 1997
  • Seven invited book chapters
  • Invited to serve in journal editorial board – “Structural Health Monitoring”, “Smart Structures and Systems”, “Measurement”, “Frontiers in Built Environment: Structural Sensing” and “International Journal of Lifecycle Performance Engineering”.
  • More than 20 invited keynotes in Canada, China, UK, Japan, Australia, India, Greece, etc.
  • Faculty’s Teaching Commendation List for more 10 academic years.

Professional Activities

  • Council member, International Society for Structural Health Monitoring of Intelligent Infrastructure
  • Structural Health Monitoring Committee, American Society of Civil Engineers
  • Advisor/specialist in structural engineering for more than 130 infrastructure and industrial projects

Teaching Areas

  • Engineering Dynamics (Level 1)
  • Structural Mechanics (Level 2)
  • Structural Analysis (Level 3)
  • Structural Stability and Dynamics (Level 4)
  • Finite Element Methods (Level 4 and Graduate)
  • Experimental Methods in Civil Engineering (Graduate)
  • Numerical Methods for Engineering Mechanics (Graduate)
  • Integrated Design Project (Level 4)

Research Interests

  • Structural dynamics
  • System identification and health monitoring of structural systems
  • Train-track dynamics (e.g. wheel flat detection, Moving Element Method)
  • Consistent Particle Method for wave hydrodynamics, geomechanics, coastal erosion, and water-sediment-structure interaction
  • Offshore system dynamics and reliability

Patents

  • “A Sensor for Load Measurement” (Rail Pad Force Sensor) — patent granted in Singapore (02/2020)
  • “Wing for wide tow of geophysical survey sources” — patent granted in France (06/2018), Australia (10/2017), UK (06/2017) and USA (01/2017)
  • “Wall panel and method of fabricating the same” — patent granted in Singapore (06/2018)
  • “Vibration Detector and Method” — patent granted in USA (03/2016)
  • “Liquid Stabilizing Device” — patent granted in Japan (04/2016) and China (06/2015)

Selected Publications

Book:

C G Koh and M J Perry, “Structural Identification and Damage Detection using Genetic Algorithms”, Taylor & Francis Group, London, 2010

Journal Papers (Partial List):

  1. Tang, X.-Q., Koh, C. G., & Luo, M. (2023). Numerical simulation of turbidity currents using Consistent Particle Method. Advances in Water Resources (accepted for publication).
  2. Li, S. T., Koh, C. G., & Chow, Y. K. (2023). Expansion of consistent particle method to solve solid mechanics problems. International Journal for Numerical Methods in Engineering, 124(15), 3278-3298. doi:10.1002/nme.7247
  3. Ge, H., Chua Kim Huat, D., Koh, C. G., Dai, G., & Yu, Y. (2021). Guided wave-based rail flaw detection technologies: state-of-the-art review. Structural Health Monitoring, 21(3), 1287-1308. doi:10.1177/14759217211013110
  4. Cao, W. -J., Koh, C. G., & Smith, I. F. C. (2021). Vibration Serviceability Assessment for Pedestrian Bridges Based on Model Falsification. ASCE Journal ff Bridge Engineering, 26(3), 15 pages. doi:10.1061/(ASCE)BE.1943-5592.0001673
  5. Luo, M., Koh, C. G., Lee, W. X., Lin, P., & Reeve, D. E. (2020). Experimental study of freak wave impacts on a tension-leg platform. Marine Structures, 74, 17 pages. doi:10.1016/j.marstruc.2020.102821
  6. Wang, Z. -Z., Goh, S. H., Koh, C. G., & Smith, I. F. C. (2020). Comparative study of the effects of three data-interpretation methodologies on the performance of geotechnical back analysis. International Journal for Numerical and Analytical Methods in Geomechanics, 44(15), 2093-2113. doi:10.1002/nag.3120
  7. Zhang, X., Low, Y. M., & Koh, C. G. (2020). Maximum entropy distribution with fractional moments for reliability analysis. Structural Safety, 83. doi:10.1016/j.strusafe.2019.101904
  8. Cao, W. J., Liu, W. S., Koh, C. G., & Smith, I. F. C. (2020). Optimizing the operating profit of young highways using updated bridge structural capacity. Journal of Civil Structural Health Monitoring. doi:10.1007/s13349-020-00379-3
  9. Cao, W. J., Koh, C. G., & Smith, I. F. C. (2019). Enhancing static-load-test identification of bridges using dynamic data. Engineering Structures, 186, 410-420. doi:10.1016/j.engstruct.2019.02.041
  10. Wang, Z. Z., Goh, S. H., Koh, C. G., & Smith, I. F. C. (2019). An efficient inverse analysis procedure for braced excavations considering three-dimensional effects. Computers and Geotechnics, 107, 150-162. doi:10.1016/j.compgeo.2018.12.004
  11. Cao, W. J., Zhang, S., Bertola, N. J., Smith, I. F. C., & Koh, C. G. (2019). Time series data interpretation for ‘wheel-flat’ identification including uncertainties. Structural Health Monitoring. doi:10.1177/1475921719887117
  12. Zhang S. L., Koh C. G. & Kuang K. S. C. (2018). ”Proposed rail pad sensor for wheel-rail contact force monitoring”. Smart Materials and Structures. doi:10.1088/1361-665X/aadc8d
  13. Li, D., Kuang, K. S. C., & Koh, C. G. (2018). Rail crack monitoring based on Tsallis synchrosqueezed wavelet entropy of acoustic emission signals: A field study. Structural Health Monitoring, 17(6), 1410-1424. doi:10.1177/1475921717742339
  14. Parool, N., Qian, X., & Koh, C. G. (2018). A modified hybrid method to estimate fracture resistance curve for pipes with a circumferential surface crack. Engineering Fracture Mechanics, 188, 1-19. doi:10.1016/j.engfracmech.2017.05.046
  15. Luo, M., & Koh, C. G. (2017). Shared-Memory parallelization of consistent particle method for violent wave impact problems. Applied Ocean Research, 69, 87-99. doi:10.1016/j.apor.2017.09.013
  16. Hou, X. Y., Koh, C. G., Kuang, K. S. C., & Lee, W. H. (2017). Modeling and experimental characterization of a new piezoelectric sensor for low-amplitude vibration measurement. Measurement Science and Technology, 28(7). doi:10.1088/1361-6501/aa4f22
  17. Alibrandi, U., & Koh, C. G. (2017). Stochastic dynamic analysis of floating production systems using the First Order Reliability Method and the Secant Hyperplane Method. Ocean Engineering, 137, 68-77. doi:10.1016/j.oceaneng.2017.02.031
  18. Li, D., Kuang, K. S. C., & Koh, C. G. (2017). Fatigue crack sizing in rail steel using crack closure-induced acoustic emission waves. Measurement Science and Technology, 28(6). doi:10.1088/1361-6501/aa670d
  19. Nabilah, A. B., & Koh, C. G. (2017). Experimental study of intermediate length coupling beams subjected to monotonic load. KSCE Journal of Civil Engineering, 21(7), 2807-2813. doi:10.1007/s12205-017-1185-6
  20. Parool, N., Qian, X., & Koh, C. G. (2017). An eta-compliance method to estimate the J-Delta a curve for pipes with a circumferential surface crack. Fatigue & Fracture of Engineering Materials & Structures, 40(10), 1624-1639. doi:10.1111/ffe.12592
  21. Kuang, K. S. C., Li, D., & Koh, C. G. (2016). Acoustic emission source location and noise cancellation for crack detection in rail head. Smart Structures and Systems, 18(5), 1063-1085. doi:10.12989/sss.2016.18.5.1063
  22. Jeyarajan, S., Liew, J. Y. R., & Koh, C. G. (2016). Plastic Hinge Analysis of Composite Frames under Column Loss Scenario. International Journal of Steel Structures, 16(3), 975-985. doi:10.1007/s13296-015-0049-5
  23. Zhang, M. Q., Beer, M., Koh, C. G., & Jensen, H. A. (2016). Nuanced Robustness Analysis with Limited Information. ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering, 2(3). doi:10.1061/AJRUA6.0000821
  24. Tay, C. G., Koh, C. G., & Liew, J. Y. R. (2016). Efficient progressive collapse analysis for robustness evaluation of buildings experiencing column removal. Journal of Constructional Steel Research, 122, 395-408. doi:10.1016/j.jcsr.2016.04.010
  25. Luo, M., Koh, C. G., & Bai, W. (2016). A three-dimensional particle method for violent sloshing under regular and irregular excitations. Ocean Engineering, 120, 52-63. doi:10.1016/j.oceaneng.2016.05.015
  26. Alibrandi, U., Ma, C., & Koh, C. G. (2016). Secant Hyperplane Method for Structural Reliability Analysis. Journal of Engineering Mechanics, ASCE, 142(3). doi:10.1061/(ASCE)EM.1943-7889.0001024
  27. Luo, M., Koh, C. G., Bai, W., & Gao, M. (2016). A particle method for two-phase flows with compressible air pocket. International Journal for Numerical Methods in Engineering, 108(7), 695-721. doi:10.1002/nme.5230
  28. Alibrandi, U., & Koh, C. G. (2015). First-order reliability method for structural reliability analysis in the presence of random and interval variables. ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering, 1(4). doi:10.1115/1.4030911
  29. Sohel, K. M. A., Liew, J. Y. R., & Koh, C. G. (2015). Numerical modelling of lightweight Steel-Concrete-Steel sandwich composite beams subjected to impact. THIN-WALLED STRUCTURES, 94, 135-146. doi:10.1016/j.tws.2015.04.001
  30. Jeyarajan, S., Liew, J. Y. R., & Koh, C. G. (2015). Enhancing the Robustness of Steel-Concrete Composite Buildings under Column Loss Scenarios. International Journal of Protective Structures, 6(3), 529-550. doi:10.1260/2041-4196.6.3.529
  31. Jeyarajan, S., Liew, J. Y. R., & Koh, C. G. (2015). Analysis of Steel-Concrete Composite Buildings for Blast Induced Progressive Collapse. International Journal of Protective Structures, 6(3), 457-485. doi:10.1260/2041-4196.6.3.457
  32. Bai, W., Liu, X., & Koh, C. G. (2015). Numerical study of violent LNG sloshing induced by realistic ship motions using level set method. Ocean Engineering, 97, 100-113. doi:10.1016/j.oceaneng.2015.01.010
  33. Jeyarajan, S., Liew, J. Y. R., & Koh, C. G. (2015). Progressive collapse mitigation approaches for steel-concrete composite buildings. International Journal of Steel Structures, 15(1), 175-191. doi:10.1007/s13296-015-3013-5
  34. Alibrandi, U., Alani, A., & Koh, C. G. (2015). Implications of High-Dimensional Geometry for Structural Reliability Analysis and a Novel Linear Response Surface Method Based on SVM. International Journal of Computational Methods, 12(4). doi:10.1142/S0219876215400162
  35. Wang, Z. L., Gao, Q. F., Koh, C. G., Chen, C., & Guo, B. Q. (2015). Dynamic responses of long span continuous girder bridges under action of moving vehicle loads. Bridge Construction, 45(2), 46-52.
  36. Luo, M., Koh, C. G., Gao, M., & Bai, W. (2015). A particle method for two-phase flows with large density difference. International Journal for Numerical Methods in Engineering, 103(4), 235-255. doi:10.1002/nme.4884
  37. Wang, X. M., Koh, C. G., & Zhang, J. (2014). Substructural identification of jack-up platform in time and frequency domains. Applied Ocean Research, 44, 53-62. doi:10.1016/j.apor.2013.09.004
  38. Gao, R. P., Wang, C. M., & Koh, C. G. (2013). Reducing hydroelastic response of pontoon-type very large floating structures using flexible connector and gill cells. Engineering Structures, 52, 372-383. doi:10.1016/j.engstruct.2013.03.002
  39. Koh, C. G., Luo, M., Gao, M., & Bai, W. (2013). Modelling of liquid sloshing with constrained floating baffle. Computers & Structures, 122, 270-279. doi:10.1016/j.compstruc.2013.03.018
  40. Gao, X. Y., Balendra, T., & Koh, C. G. (2013). Buckling strength of slender circular tubular steel braces strengthened by CFRP. Engineering Structures, 46, 547-556. doi:10.1016/j.engstruct.2012.08.010
  41. Zhang, M. Q., Beer, M., & Koh, C. G. (2012). Interval Analysis for System Identification of Linear MDOF Structures in the Presence of Modeling Errors. Journal of Engineering Mechanics, ASCE, 138(11), 1326-1338. doi:10.1061/(ASCE)EM.1943-7889.0000433
  42. Zhang, J., Koh, C. G., Trinh, T. N., Wang, X., & Zhang, Z. (2012). Identification of jack-up spudcan fixity by an output-only substructural strategy. Marine Structures, 29(1), 71-88. doi:10.1016/j.marstruc.2012.10.001
  43. Trinh, T. N., & Koh, C. G. (2012). An improved substructural identification strategy for large structural systems. Structural Control & Health Monitoring, 19(8), 686-700. doi:10.1002/stc.463
  44. Zhang, Z., Koh, C. G., & Perry, M. J. (2012). Frequency domain substructural identification for arbitrary excitations. Earthquake Engineering & Structural Dynamics, 41(4), 605-621. doi:10.1002/eqe.1146
  45. Koh, C. G., Gao, M., & Luo, C. (2012). A new particle method for simulation of incompressible free surface flow problems. International Journal for Numerical Methods in Engineering, 89(12), 1582-1604. doi:10.1002/nme.3303
  46. Gao, R. P., Tay, Z. Y., Wang, C. M., & Koh, C. G. (2011). Hydroelastic response of very large floating structure with a flexible line connection. Ocean Engineering, 38(17-18), 1957-1966. doi:10.1016/j.oceaneng.2011.09.021
  47. Zhang, Z., Koh, C. G., & Duan, W. H. (2010). Uniformly sampled genetic algorithm with gradient search for structural identification – Part II: Local search. Computers & Structures, 88(19-20), 1149-1161. doi:10.1016/j.compstruc.2010.07.004
  48. Zhang, Z., Koh, C. G., & Duan, W. H. (2010). Uniformly sampled genetic algorithm with gradient search for structural identification – Part I: Global search. Computers & Structures, 88(15-16), 949-962. doi:10.1016/j.compstruc.2010.05.001
  49. Wang, T. Y., Koh, C. G., & Liaw, C. Y. (2010). Post-buckling analysis of planar elastica using a hybrid numerical strategy. Computers & Structures, 88(11-12), 785-795. doi:10.1016/j.compstruc.2010.03.004
  50. Kuang, K. S. C., Quek, S. T., Koh, C. G., Cantwell, W. J., & Scully, P. J. (2009). Plastic optical fibre sensors for structural health monitoring: A review of recent progress. Journal of Sensors, 2009. doi:10.1155/2009/312053
  51. Tee, K. F., Koh, C. G., & Quek, S. T. (2009). Numerical and Experimental Studies of a Substructural Identification Strategy. STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL, 8(5), 397-410. doi:10.1177/1475921709102089
  52. Liew, J. Y. R., Sohel, K. M. A., & Koh, C. G. (2009). Impact tests on steel-concrete-steel sandwich beams with lightweight concrete core. Engineering Structures, 31(9), 2045-2059. doi:10.1016/j.engstruct.2009.03.007
  53. Fu, H., Chen, H., Koh, C. G., & Lim, C. T. (2009). Effects of magnesium salt concentrations on B-DNA overstretching transition. European Physical Journal E, 29(1), 45-49. doi:10.1140/epje/i2009-10448-0
  54. Duan, W. H., & Koh, C. G. (2008). Axisymmetric transverse vibrations of circular cylindrical shells with variable thickness. Journal of Sound and Vibration, 317(3-5), 1035-1041. doi:10.1016/j.jsv.2008.03.069
  55. Perry, M. J., & Koh, C. G. (2008). Output-only structural identification in time domain: Numerical and experimental studies. Earthquake Engineering and Structural Dynamics, 37(4), 517-533. doi:10.1002/eqe.769
  56. KOH, C. G., & PERRY, M. J. (2007). Structural Damage Quantification by System Identification. Journal of Earthquake and Tsunami, 01(03), 211-231. doi:10.1142/S1793431107000134
  57. Balendra, T., Li, Z. J., Tan, K. H., & Koh, C. G. (2007). Vulnerability of buildings to long distance earthquakes from Sumatra. Journal of Earthquake and Tsunami, 1(1), 71-85. doi:10.1142/S1793431107000055
  58. Koh, C. G., Chiew, G. H., & Lim, C. C. (2007). A numerical method for moving load on continuum. Journal of Sound and Vibration, 300(1-2), 126-138. doi:10.1016/j.jsv.2006.07.038
  59. Koh, C. G., Tee, K. F., & Quek, S. T. (2006). Condensed model identification and recovery for structural damage assessment. Journal of Structural Engineering, ASCE, 132(12), 2018-2026. doi:10.1061/(ASCE)0733-9445(2006)132:12(2018)
  60. Jiang, S. F., Zhang, C. M., & Koh, C. G. (2006). Structural damage detection by integrating data fusion and probabilistic neural network. Advances in Structural Engineering, 9(4), 445-457. doi:10.1260/136943306778812787
  61. Le, J. L., Koh, C. G., & Wee, T. H. (2006). Damage modelling of lightweight high-strength concrete under impact. Magazine of Concrete Research, 58(6), 343-355. doi:10.1680/macr.2006.58.6.343
  62. Perry, M. J., Koh, C. G., & Choo, Y. S. (2006). Modified genetic algorithm strategy for structural identification. Computers & Structures, 84(8-9), 529-540. doi:10.1016/j.compstruc.2005.11.008
  63. Koh, C. G., Sze, P. P., & Deng, T. T. (2006). Numerical and analytical methods for in-plane dynamic response of annular disk. International Journal of Solids and Structures, 43(1), 112-131. doi:10.1016/j.ijsolstr.2005.05.013
  64. Tee, K. F., Koh, C. G., & Quek, S. T. (2005). Substructural first- and second-order model identification for structural damage assessment. Earthquake Engineering & Structural Dynamics, 34(15), 1755-1775. doi:10.1002/eqe.500
  65. Koh, C. G., & Rong, Y. (2004). Dynamic analysis of large displacement cable motion with experimental verification. Journal of Sound and Vibration, 272(1-2), 187-206.
  66. Chen, H., Zhou, X., Chih, Y. L., & Chan, G. K. (2004). Kinetic analysis of protein folding lattice models. Modern Physics Letters B, 18(4), 163-172. doi:10.1142/S0217984904006779
  67. Koh, C. G., Qiao, G. Q., & Quek, S. T. (2003). Damage identification of structural members: Numerical and experimental studies. Structural Health Monitoring, 2(1), 41-55. doi:10.1177/147592103031112
  68. Koh, C. G., Ang, K. K., & Chan, P. F. (2003). Dynamic analysis of shell structures with application to blast resistant doors. Shock and Vibration, 10(4), 269-279.
  69. Koh, C. G., Hong, B., & Liaw, C. Y. (2003). Substructural and progressive structural identification methods. Engineering Structures, 25(12), 1551-1563. doi:10.1016/S0141-0296(03)00122-6
  70. Koh, C. G., & Shankar, K. (2003). Substructural identification method without interface measurement. Journal of Engineering Mechanics, ASCE, 129(7), 769-776. doi:10.1061/(ASCE)0733-9399(2003)129:7(769)
  71. Koh, C. G., Ong, J. S. Y., Chua, D. K. H., & Feng, J. (2003). Moving element method for train-track dynamics. International Journal for Numerical Methods in Engineering, 56(11), 1549-1567. doi:10.1002/nme.624
  72. Koh, C. G., Chen, Y. F., & Liaw, C. Y. (2003). A hybrid computational strategy for identification of structural parameters. Computers and Structures, 81(2), 107-117. doi:10.1016/S0045-7949(02)00344-9
  73. Liu, Z. S., Swaddiwudhipong, S., & Koh, C. G. (2002). Stress wave propagation in 1-D and 2-D media using smooth particle hydrodynamics method. Structural Engineering and Mechanics, 14(4), 455-472.
  74. Koh, C. G., Liu, Z. J., & Quek, S. T. (2001). Numerical and experimental studies of concrete damage under impact. Magazine of Concrete Research, 53(6), 417-427. doi:10.1680/macr.53.6.417.40795
  75. Liaw, C. Y., Naik, T., & Koh, C. G. (2001). Second-order superharmonic wave loading on jack-up platforms. Journal of Waterway, Port, Coastal and Ocean Engineering, ASCE, 127(6), 319-326. doi:10.1061/(ASCE)0733-950X(2001)127:6(319)
  76. Koh, C. G., & Lim, H. L. (2001). Analytical solution for compression stiffness of bonded rectangular layers. International Journal of Solids and Structures, 38(3), 445-455. doi:10.1016/S0020-7683(00)00057-3
  77. Koh, C. G., Hong, B., & Liaw, C. Y. (2000). Parameter identification of large structural systems in time domain. Journal of structural engineering, ASCE, 126(8), 957-963. doi:10.1061/(ASCE)0733-9445(2000)126:8(957)
  78. Koh, C. G., Zhang, Y., & Quek, S. T. (1999). Low-tension cable dynamics: Numerical and experimental studies. Journal of Engineering Mechanics, ASCE, 125(3), 347-354. doi:10.1061/(ASCE)0733-9399(1999)125:3(347)
  79. Quek, S. T., Wang, W. P., & Koh, C. G. (1999). System identification of linear MDOF structures under ambient excitation. Earthquake Engineering & Structural Dynamics, 28(1), 61-77. doi:10.1002/(SICI)1096-9845(199901)28:1<61::AID-EQE804>3.3.CO;2-1
  80. Koh, C. G., Ang, K. K., & Xu, R. (1997). An eigen-force method for finite element analysis and reanalysis. International Journal for Numerical Methods in Engineering, 40(5), 777-796. doi:10.1002/(SICI)1097-0207(19970315)40:5<777::AID-NME88>3.0.CO;2-8
  81. Chua, D. K. H., Koh, C. G., & Lo, K. W. (1997). Performance of urban rail transit system: Vibration and noise study. Journal of Performance of Constructed Facilities, ASCE, 11(2), 67-75.
  82. Koh, C. G., Ang, K. K., & Zhang, L. (1997). Effects of repeated loading on creep deflection of reinforced concrete beams. Engineering Structures, 19(1), 2-18. doi:10.1016/S0141-0296(96)00028-4
  83. Koh, C. G., Owen, D. R. J., & Peric, D. (1995). Explicit dynamic analysis of elasto-plastic laminated composite shells: implementation of non-iterative stress update schemes for the HOFFMAN yield criterion. Computational Mechanics, 16(5), 307-314. doi:10.1007/BF00350720
  84. Koh, C. G., Ho, Y. C., & Balendra, T. (1995). A substructure approach to dynamic soil-structure interaction due to incident plane waves. Journal of Sound and Vibration, 180(5), 797-807. doi:10.1006/jsvi.1995.0116
  85. Li, X. M., Quek, S. T., & Koh, C. G. (1995). Stochastic Response oOf Offshore Platforms by Statistical Cubicization. Journal of Engineering Mechanics, ASCE, 121(10), 1056-1068. doi:10.1061/(ASCE)0733-9399(1995)121:10(1056)
  86. Koh, C. G., Mahatma, S., & Wang, C. M. (1995). Reduction of Structural Vibrations by Multiple-Mode Liquid Dampers. Engineering Structures, 17(2), 122-128. doi:10.1016/0141-0296(95)92643-M
  87. Koh, C. G., See, L. M., & Balendra, T. (1995). Determination of storey stiffness of three-dimensional frame buildings. Engineering Structures, 17(3), 179-186. doi:10.1016/0141-0296(95)00055-C
  88. Koh, C. G., See, L. M., & Balendra, T. (1995). Damage detection of buildings: Numerical and experimental studies. Journal of Structural Engineering, ASCE, 121(8), 1155-1160. doi:10.1061/(ASCE)0733-9445(1995)121:8(1155)
  89. Koh, C. G., Mahatma, S., & Wang, C. M. (1994). Theoretical and Experimental Studies on Rectangular Liquid Dampers under Arbitrary Excitations. Earthquake Engineering & Structural Dynamics, 23(1), 17-31. doi:10.1002/eqe.4290230103
  90. Quek, S. T., Li, X. M., & Koh, C. G. (1994). Stochastic Response ff Jack-Up Platform by The Method of Statistical Quadratization. Applied Ocean Research, 16(2), 113-122. doi:10.1016/0141-1187(94)90007-8
  91. Koh, C. G., & See, L. M. (1994). Identification and uncertainty estimation of structural parameters. Journal of Engineering Mechanics, ASCE, 120(6), 1219-1236. doi:10.1061/(ASCE)0733-9399(1994)120:6(1219)
  92. Liaw, C. Y., & Koh, C. G. (1993). Dynamic stability and chaos of system with piecewise linear stiffness. Journal of Engineering Mechanics, ASCE, 119(8), 1542-1557. doi:10.1061/(ASCE)0733-9399(1993)119:8(1542)
  93. Balendra, T., & Koh, C. G. (1991). Vibrations of non-linear asymmetric buildings on a flexible foundation. Journal of Sound and Vibration, 149(3), 361-374. doi:10.1016/0022-460X(91)90442-M
  94. Liaw, C. Y., & Koh, C. G. (1991). Effects of time step size on the response of a bilinear system, II: Stability analysis. Journal of Sound and Vibration, 144(1), 31-40. doi:10.1016/0022-460X(91)90730-8
  95. Koh, C. G., & Liaw, C. Y. (1991). Effects of time step size on the response of a bilinear system, I: Numerical study. Journal of Sound and Vibration, 144(1), 17-29. doi:10.1016/0022-460X(91)90729-4
  96. Quek, S. T., & Koh, C. G. (1991). Limit Load Analysis of a Semi-Infinite Beam on Rigid Foundation. International Journal of Mechanical Sciences, 33(5), 403-412. doi:10.1016/0020-7403(91)90078-H
  97. Koh, C. G., See, L. M., & Balendra, T. (1991). Estimation of structural parameters in time domain: A substructure approach. Earthquake Engineering & Structural Dynamics, 20(8), 787-801. doi:10.1002/eqe.4290200806
  98. Balendra, T., Koh, C. G., & Ho, Y. C. (1991). Dynamic response of buildings due to trains in underground tunnels. Earthquake Engineering & Structural Dynamics, 20(3), 275-291. doi:10.1002/eqe.4290200306
  99. Koh, C. G., Balendra, T., & Ho, Y. C. (1990). Antiplane tunnel-soil-foundation interaction effects on primary-secondary systems. Journal of Sound and Vibration, 142(3), 499-514. doi:10.1016/0022-460X(90)90664-L
  100. KOH, C. G., & QUEK, S. T. (1990). Limit Loads of Buried Pipelines with Asymmetric Initial Imperfections. Journal of Pressure Vessel Technology-Transactions of the ASME, 112(4), 392-396. doi:10.1115/1.2929894
  101. Koh, C. G., & Kelly, J. M. (1990). Application of fractional derivatives to seismic analysis of base-isolated models. Earthquake Engineering & Structural Dynamics, 19(2), 229-241. doi:10.1002/eqe.4290190207
  102. Koh, C. G., & Kelly, J. M. (1989). Applicability of the Southwell plot to shear deformable columns. Journal of Testing and Evaluation, 17(5), 287-291.
  103. Koh, C. G., & Kelly, J. M. (1989). Viscoelastic stability model for elastomeric isolation bearings. Journal of Structural Engineering, ASCE, 115(2), 285-302. doi:10.1061/(ASCE)0733-9445(1989)115:2(285)
  104. Koh, C. G., & Kelly, J. M. (1989). Compression stiffness of bonded square layers of nearly incompressible material. Engineering Structures, 11(1), 9-15. doi:10.1016/0141-0296(89)90027-8
  105. Koh, C. G., & Kelly, J. M. (1988). A simple mechanical model for elastomeric bearings used in base isolation. International Journal of Mechanical Sciences, 30(12), 933-943. doi:10.1016/0020-7403(88)90075-6

Staff Details

Contact Number

6516 2163

Email Address

cgkoh@nus.edu.sg