Chapter
May 22, 2014
Strong Motion Records of Two Suspension Bridges in a M4.8 Earthquake
Authors: Lixin Wang [email protected], Hui Jiang [email protected], Xianren Zhao [email protected], and Xueyan Li [email protected]Author Affiliations
Publication: Advances in Soil Dynamics and Foundation Engineering
Abstract
Earthquake records of in-service, long-span bridges provide valuable insights into their seismic behavior and performance. In this paper, the strong motion records of arrays installed at two steel suspension bridges in a M4.8 earthquake are illustrated and preliminarily analyzed. The data reveal that the differences in the arrival times of peaks and valleys appear to be significant, which clearly illustrates the wave propagation effect. It is also shown that the differences in local soil conditions at different towers have significant influence on the spectra and time history of ground motions. The results suggest that the spatial variation of seismic ground motions induced by local site effect should receive more attention in seismic design and analysis of long-span bridges.
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Information
Published In
Advances in Soil Dynamics and Foundation Engineering
Pages: 145 - 156
Copyright
© 2014 American Society of Civil Engineers.
History
Published online: May 22, 2014
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ASCE Technical Topics:
- Bridge engineering
- Bridges
- Bridges (by material)
- Bridges (by type)
- Earthquake engineering
- Earthquakes
- Engineering fundamentals
- Geohazards
- Geomechanics
- Geotechnical engineering
- Geotechnical investigation
- Ground motion
- Seismic design
- Seismic tests
- Soil dynamics
- Soil mechanics
- Span bridges
- Steel bridges
- Structural engineering
- Suspension bridges
- Tests (by type)
- Wood bridges
Authors
Affiliations
Associate Professor, CEA Key Laboratory of Earthquake Monitoring and Disaster Mitigation Technology, Earthquake Administration of Guangdong Province, Guangzhou 510070, China. E-mail: [email protected]
Professor, CEA Key Laboratory of Earthquake Monitoring and Disaster Mitigation Technology, Earthquake Administration of Guangdong Province, Guangzhou 510070, China. E-mail: [email protected]
Engineer, CEA Key Laboratory of Earthquake Monitoring and Disaster Mitigation Technology, Earthquake Administration of Guangdong Province, Guangzhou 510070, China. E-mail: [email protected]
Associate Professor, Key Laboratory of Disaster Forecast and Control in Engineering, Department of Mechanics & Civil Engineering, Jinan University, Guangzhou 510632, China. E-mail: [email protected]
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