Effects of Different Record Selection Methods on the Transverse Seismic Response of a Bridge in South Western British Columbia |
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| Authors: | Payam Tehrani Katsuichiro Goda Gail M Atkinson Luc E Chouinard |
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| Institution: | 1. Department of Civil Engineering &2. Applied Mechanics, McGill University, Montreal, Canada;3. Department of Civil Engineering, University of Bristol, Bristol, United Kingdom;4. Department of Earth Sciences, University of Western Ontario, London, Ontario, Canada |
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| Abstract: | The seismic response of a continuous 4-span bridge designed according to the current Canadian seismic provisions is investigated using Incremental Dynamic Analysis (IDA). Different earthquake types, including shallow crustal events, interface Cascadia subduction, and deep inslab subduction are considered. The median collapse capacities calculated using different record selection methods including Conditional Mean Spectrum (CMS)-based, Uniform Hazard Spectrum (UHS)-based, and epsilon-based methods are compared. The use of the epsilon-based method generally resulted in the highest collapse capacity predictions, but the CMS-based method was less sensitive to the number of records considered in the IDA. |
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| Keywords: | Record Selection Incremental Dynamic Analysis Bridges Conditional Mean Spectrum Seismic Performance Epsilon-Based Method |
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