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Nonlinear Seismic Response Analysis of CFST Arc Bridge

Rui Li

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Abstract

A large-span half-through concrete filled steel tubular(CFST) arch bridge is studied in this paper,and the dynamic characteristics of this arch bridge are calculated and analyzed by using a three-dimensional finite element mode1 based on double-element method. The nonlinear seismic response of the CFST arc bridge is calculated by time-history analysis method,which is beneficial for the analysis of effect of geometric nonlinear,material nonlinear and geometric material nonlinear property on CFST arc bridge.

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What this paper is about

A large-span half-through concrete filled steel tubular(CFST) arch bridge is studied in this paper,and the dynamic characteristics of this arch bridge are calculated and analyzed by using a three-dimensional finite element mode1 based on double-element method. The nonlinear seismic response of the CFST arc bridge is calculated by time-history analysis method,which is beneficial for the analysis of effect of geometric nonlinear,material nonlinear and geometric material nonlinear property on CFST arc bridge.

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Available abstract

A large-span half-through concrete filled steel tubular(CFST) arch bridge is studied in this paper,and the dynamic characteristics of this arch bridge are calculated and analyzed by using a three-dimensional finite element mode1 based on double-element method. The nonlinear seismic response of the CFST arc bridge is calculated by time-history analysis method,which is beneficial for the analysis of effect of geometric nonlinear,material nonlinear and geometric material nonlinear property on CFST arc bridge.

Key concepts: Structural engineering, Arch bridge, Bridge (graph theory), Nonlinear system, Arch, Finite element method, Arc (geometry), Engineering

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