摘要
钢管拱肋填充混凝土后,质量体系相对刚度体系的作用将大幅增加,特别是在大地震作用下的横向反应显著增大。拱肋内部不填充混凝土,能够减小横向地震作用,同时可以减轻下部结构的负担。因此,本文提出了圆形钢管拱肋的材料非线性性能的评价方法,并以上承式钢管拱桥为例,探讨了钢管拱桥在大地震作用下的非线性反应性能。
This paper presents the threedimensional nonlinear dynamic analysis of a steel arch bridge under strong seismic motion. The prototype bridge is madeup of two parallel pipe arches with upper deck. Both the geometrical and material nonlinearities are considered in the analysis with particular attention paid to modeling the ultimate strength and ductility of a steel pipe arch. Predictions for the seismic behavior of the bridge are presented and discussed.
出处
《地震工程与工程振动》
CSCD
北大核心
2003年第1期44-49,共6页
Earthquake Engineering and Engineering Dynamics
