Seismic Response Analysis of a Curved Bridge under Near-Fault and Far-Field Ground Motions
Source abstract
Abstract
To study the influence of near-fault and far-field (FF) ground motions on a curved girder bridge, a 1:10 scale curved bridge shaking table test model was constructed. Three types of ground motions, namely, near-fault pulse (NP), near-fault non-pulse (NN), and FF ground motions, were selected and employed in the test model. The test results indicated that the seismic response of the curved bridge in the excitation of NP ground motion is significantly higher than that in the excitation of NN and FF ground motions, and is destructive to the curved bridge. The displacement of the curved bridge has spatial characteristics in the excitation of NP ground motions. The rotation generated by the curved bridge is easy to cause bearing shedding or girder falling at the low pier. The amplification of pier height increases the displacement response at the high pier.
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Research context
OpenAlex topics: Seismic Performance and Analysis · Geotechnical Engineering and Underground Structures · Structural Response to Dynamic Loads
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Earth Sciences and Engineering, Nanjing University, Nanjing 210008, China
Institute of Earthquake Forecasting, China Earthquake Administration, Beijing 100036, China
Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100024, China
Funding
Beijing Natural Science Foundation · Central Public-interest Scientific Institution Basal Research Fund
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