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This document summarizes a research study that estimated a response modification factor (R factor) for seismic design of integral abutment bridges (IABs). The study applied the FEMA P695 methodology, which involves developing archetype bridge structures and performing incremental dynamic analysis on each to determine collapse margin ratios under earthquake loading. An initial R factor of 3.5 was selected based on codes for bridge bents with vertical piles. Nonlinear finite element models captured soil-struc

Author

امیررضا اسدی

Language

EN