Application research of seismic isolation device in long-span continuous beam bridge

2018 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

材料科学;无线电电子学;计算机科学

Chen, Fang^1 ; Zhong, Tieyi^1 ; Wang, Wei^1 ; Wang, Xiaoxue^1 ; Zhu, Fan^1

School of Civil Engineering, Beijing Jiaotong University, Beijing

100044, China^1

关键词: Application research;    Continuous beam bridges;    Continuous girder bridge;    Dynamic time history analysis;    Finite element structural analysis;    Parameter setting;    Seismic isolation devices;    Three dimensional finite element model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/439/4/042065/pdf
DOI  :  10.1088/1757-899X/439/4/042065

来源: IOP

【 摘 要 】

The three-dimensional finite element model of pre-stressed concrete continuous girder bridge with span (76+144+76)m is established by using finite element structural analysis software Ansys in this paper. The dynamic time history analysis method is used to study the influence of viscous dampers and friction pendulums with different parameters on the seismic response of long-span continuous beam bridges, which provides a basis for rational selection of seismic isolation measures. The results show that reasonable seismic isolation measures can effectively reduce the seismic response of long-span continuous beam bridges; both the viscous damper and the friction pendulum can have good seismic isolation effects, but the damping effects are related to their parameter settings.