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
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 http://st.hkie.org.hk/.
CPD certificates will be issued.
Submissions for the Best Reporter Award are invited. Report must be submitted to firstname.lastname@example.org within two weeks after the seminar. The rules of the Best Reporter Award could be referred to the following link: http://st.hkie.org.hk/en_events_AllDate_Detail.aspx?EventID=57&&TypeName=Best+Reporter+Awards.
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.