Nonlinear Dynamic Analysis of Reinforced Concrete Arch Bridge Under the Seismic ｌｏａｄ

Yu WANG

School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, CHINA

Abstract: Taking one reinforced concrete arch bridge of Chongqing as an example, considering the nonlinear analysis of structure, the bridge model is established by finite element software -. SAP2000 Then modal analysis and time history analysis is carried out Studying the vibration period, frequency and. deformation conditions of the model in each mode. Using nonlinear time-history analysis to study vibrational state and frequency response spectrum. According to the internal force and deformation diagrams, study the stress features of the bridge key sections. Some conclusions are deduced.

Keywords: Nonlinear; Dynamic Characteristics; Time-history Analysis; Seismic Wave