The Effect of Stiffness Degradation on the Three-Dimensional Seismic Response of Highway Bridgesby M. Saiid Saiidi, Univ of Nevada, United States,
George Ghusn, Univ of Nevada, United States,
Abstract: This paper describes the effect of modeling of the inelastic pier behavior on the seismic response of three reinforced concrete bridges. Each bridge was analyzed twice once using a yield surface elasto-plastic pier element and once using a degrading five-spring hysteretic element (5-SE). It is shown that bridge response is sensitive to the hysteresis model, and that no consistent trend can be identified in terms of the correlation between response from the two models.
Subject Headings: Highway bridges | Structural models | Piers | Seismic tests | Seismic effects | Concrete bridges | Structural members | Reinforced concrete
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