Identifying Loading and Response Mechanisms from Ten Years of Performance Monitoring of a Tall Building
Publication: Journal of Performance of Constructed Facilities
Volume 22, Issue 1
Abstract
In 1993, Shimizu Corporation provided the opportunity to record manually, readings of stress and strain gauges they had embedded at the 18th story of a 65-story office tower under construction in Singapore. Static readings continued during construction and long after, and capitalizing on access to the building and assistance of both contractor and owner, monitoring systems for tracking wind, acceleration, and deflection were installed and progressively upgraded. Further, a comprehensive ambient vibration survey and finite element model updating exercise provided a thoroughly validated analytical model of the structure. This model has been used in parallel with the analog wind and tremor “super sensor” of the building itself to provide direct evidence and characterization of the seismic and wind loadings on the building. This paper describes the evolution of the monitoring system and its capabilities, together with some of the insights the system provided into structural and loading mechanisms during its operational life until early 2005.
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Acknowledgments
The program has been a rewarding exercise in collaboration and interaction of a spectrum of enthusiasts (too numerous to mention) in building performance assessment. The writers are particularly grateful for assistance provided now and in the past by Shimizu Corporation, who also provided Fig. 4, CDL, colleagues and students from NTU Singapore, SysEng (S) Pte Ltd., and UNSW (Australia).
References
AS/NZS. (2002). “Structural design actions. Part 2: Wind actions.” AS/NZS 1170.2:2002, Standards Australia.
Ashkenazi, V., and Roberts, G. W. (1997). “Experimental monitoring of the Humber Bridge using GPS.” Proc., Institution of Civil Engineers, London, 177–182.
Broms, B. B., and Lai, H. P. (1995). “The Republic Plaza in Singapore—Foundation design.” Proc., Bengt B. Broms Symp. in Geotechnical Engineering, Singapore, World Scientific, 3–24.
Brownjohn, J. M. W. (2003). “Ambient vibration studies for system identification of tall buildings.” Earthquake Eng. Struct. Dyn., 32, 71–95.
Brownjohn, J. M. W. (2005). “Lateral loading and response for a tall building in the nonseismic doldrums.” Eng. Struct., 27, 1801–1812.
Brownjohn, J. M. W., and Ang, C. K. (1998). “Full-scale dynamic response of high rise building to lateral loading.” J. Perform. Constr. Facil., 12(1), 33–40.
Brownjohn, J. M. W., and Pan, T.-C. (1996). “Structural response monitoring of Republic Plaza.” Research Rep. No. CSE/ST&CO/96-02, Nanyang Technological Univ. Centre for Advanced Construction Studies, October.
Brownjohn, J. M. W., and Pan, T.-C. (2001). “Response of a tall building to long distance earthquakes.” Earthquake Eng. Struct. Dyn., 30, 709–729.
Brownjohn, J. M. W., Pan, T.-C., and Cheong, H. K. (1998). “Dynamic response of Republic Plaza, Singapore.” Struct. Eng., 76(11), 221–226.
Brownjohn, J. M. W., Pan, T.-C., and Deng, X. Y. (2000). “Correlating dynamic characteristics from field measurements and numerical analysis of a high-rise building.” Earthquake Eng. Struct. Dyn., 29(4), 523–543.
Li, X., Ge, L., Peng, G.-D., Rizos, C., Tamura, Y., and Yoshida, A. (2004). “Seismic response of a tower as measured by an integrated RTK-GPS system.” Proc., 1st FIG Int. Symp. on Engineering Surveys for Construction Works and Structural Engineering, Int. Federation of Surveyors (FIG), Nottingham, U.K.
Littler, J. D., and Ellis, B. R. (1990). “Interim findings from full-scale measurements on Hume Point.” J. Wind. Eng. Ind. Aerodyn., 36, 1181–1190.
Pan, T.-C. (1995). “When the doorbell rings—A case of building response to long distance earthquake.” Earthquake Eng. Struct. Dyn., 24(10), 1343–1353.
Teh, H. S., and Lai, H. P. (1995). “Structural aspects of Republic Plaza.” Proc., Seminar on Tall Buildings—Design and Construction, The Institution of Engineers, Singapore.
Tng, J. K., Yee, S. Y., Chua, C. S. L., Brownjohn, J. M. W., and Tan, Y. M. (2000). “Wind tunnel study of flow around a building (Republic Plaza).” Rep. No. CSE/2, NTU-Polytechnics Research Programme, Nanyang Technological Univ.
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© 2008 ASCE.
History
Received: Dec 19, 2006
Accepted: Mar 2, 2007
Published online: Feb 1, 2008
Published in print: Feb 2008
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