Technical Seminar on Ambient vibration test and model updating of buildings

Date, time & venue
2019-03-13;6:00 pm – 6:30 pm (Refreshment), 6:30 pm – 7:30 pm (Talk);Chan Yat Mei Sophie Room – 9/F


Speakers: Ir Dr Heung-fai LAM



This seminar reports the step-by-step procedures of a full-scale ambient vibration test and the corresponding modal identification and structural model updating of several selected buildings in Hong Kong. Owing to the limited number of accelerometers, multiple-setup ambient vibration test was designed to cover all the degrees of freedom (DOFs) of interest on the targeted buildings. The modal parameters, such as natural frequencies, damping ratio and mode shapes, of each setup were identified following a fast Bayesian FFT approach and the partial mode shapes from different setups were assembled following a least-squares method. The identified modal parameters revealed interesting features about the structural system. The well-matched results between the updated building model and identified modal parameters verified the validity of proposed modeling method. These case studies provide valuable experience in the area of structural model updating and structural health monitoring.


About Speaker:

Dr. Paul Heung-fai Lam is currently associate professor in the Department of Architecture and Civil Engineering at the City University of Hong Kong. His research interest is structural dynamics, vibration measurement, modal identification, structural model updating and damage detection, Bayesian system identification, design and analysis of vertical axis wind turbine. Dr. Lam has published over 80 international journal papers, and he has invited to give over 5 keynotes and 26 invited lectures/presentations in the area of structural engineering. A total of HK$39,100,275 research grant has been funded. Dr. Lam is currently the President of the Hong Kong Society of Theoretical and Applied Mechanics (HKSTAM). He is the Chairman (Education and Training) of the Hong Kong Construction Metal Structures Association (HKCMSA), and he is also the key person in the promotion of Eurocodes in Hong Kong through organizing a series of technical seminars (Continuing Professional Development). Apart from research and professional leadership, Dr. Lam dedicated tremendous effort in teaching and curriculum design. He is the Winner of Teaching Excellence Award (TEA) 2007/2008 with a total of HK$1,172,000 teaching grant.


Enquiries: No registration is required

For enquiries, please contact Ir Dr Simon Wong at 2176 1412


For updated information, please browse

CPD certificates will be issued.


Submissions for the Best Reporter Award are invited. Report must be submitted to within two weeks after the seminar. The rules of the Best Reporter Award could be referred to the following link:


All information and views expressed by speakers and in their conference materials do not reflect the official opinion and position of the HKIE. No responsibility is accepted by the HKIE or their publisher for such information and views including their accuracy, correctness and veracity.



Copyright © 2023 The Hong Kong Institution of Engineers. All rights reserved.