Abstract
To propose a seismic response calculation model for eccentrically compressed steel piers that can consider the local instability effect and horizontal bidirectional earthquake actions, in-plane and out-of-plane pseudo-static numerical simulation and bidirectional seismic response analysis are performed to study the applicability of the improved fiber model. The comparison results with the refined hybrid-element model show that the improved fiber model can accurately simulate the hysteretic performance of eccentrically compressed steel piers in the in-plane or out-of-plane directions and can be used to calculate the structural seismic requirements under the bidirectional action of rarely met earthquakes.
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