2011•Advanced materials researchOpen access

The Seismic Response Analysis of Continuous Rigid-Frame Bridge - Energy Method

Qi Cai Yu, Airong Liu, Ren Xiong, Hui Jun Yu

Abstract

A 3D Finite Element model of a continuous rigid-frame bridge is constructed by the Midas/Civil bridge finite element analysis program in this paper, where fiber elements and plastic hinges are used for bridge piers. The lump mass method is used to simplify the infinite-degree-of-freedom continuous rigid-frame bridge into a multi-degree of freedom model. The energy solution of continuous rigid-frame bridge is given, and the time-history analysis of the bridge is applied. In addition, the energy response of continuous rigid-frame bridge with different pier height and reinforcement ratio are given based on the energy method, revealing the impact of pier height and reinforcement ratio on the displacement and energy response of continuous rigid-frame bridge.

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Available abstract

Key concepts: Rigid frame, Structural engineering, Pier, Bridge (graph theory), Finite element method, Displacement (psychology), Frame (networking), Hinge