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A comparative study of bridge damage due to the
Wenchuan, Northridge, Loma Prieta and San Fernando earthquakes
Wang Zhiqiang1,2 and George C. Lee2
1. Department of Bridge Engineering, Tongji University, Shanghai
200092, China
2. Department of Civil, Structural, and Environmental Engineering,
University at Buffalo, State University of New York, USA
Abstract: A comparative study of selected bridge damage due to
the Wenchuan, Northridge, Loma Prieta and San
Fernando earthquakes is described in this paper. Typical ground motion
effects considered include large ground fault
displacement, liquefaction, landslide, and strong ground shaking. Issues
related to falling spans, inadequate detailing for
structural ductility and complex bridge configurations are discussed
within the context of the recent seismic design codes of
China and the US. A significant lesson learned from the Great Wenchuan
earthquake, far beyond the opportunities to improve
the seismic design provisions for bridges, is articulated.
Keywords: bridge damage; Wenchuan earthquake; Northridge
earthquake; Loma Prieta earthquake; San Fernando
earthquake; ground motion; liquefaction; landslide
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