钢筋混凝土拱桥构件重要性评价及超载导致倒塌破坏模拟.pdf

文档介绍：第 19 卷第 3 期计算机辅助工程 Vol. 19 No. 3
2010 年 9 puter Aided Engineering Sept. 2010
文章编号1006 - 0871201003-0026-05
钢筋混凝土拱桥构件重要性评价及
超载导致倒塌破坏模拟
卢啸, 陆新征, 叶列平, 何水涛
清华大学土木工程系土木工程安全与耐久教育部重点实验室,北京 100084
摘要针对近年来频频发生的拱桥倒塌事故,以某钢筋混凝土拱桥为例,建立相应的有限元模
型,采用基于广义刚度的构件重要性评价方法分析拱桥各构件的重要性,指出保证结构安全的关键
部位. 利用清华大学开发的 TECS 程序模拟拱桥因超载导致倒塌的过程,其仿真结果可供拱桥倒塌
事故原因分析和抗倒塌能力评定参考.
关键词拱桥重要性评价超载倒塌 TECS
中图分类号 U448. 34 U447 TB115 文献标志码 A
Component importance evaluation and overload-induced
collapse simulation for reinforced concrete arch bridge
LU Xiao,LU Xinzheng,YE Lieping,HE Shuitao
Key Lab. of Civil Eng. Safety & Durability of China Education Ministry,Dept. of Civil Eng. ,
Tsinghua Univ. ,Beijing 100084,China
Abstract As to the fact that collapse accidents of arch bridges happened frequently in recent years,a
finite element model is built for a typical reinforced concrete arch bridge,and the importance of the arch
ponents are evaluated ponent importance evaluation method based on generalized
structural stiffness,so that the critical regions for arch bridge safety are identified. The process of
collapse induced by overloading is simulated using the program of TECS developed by Tsinghua
University. The simulation results of overloading collapse can provide references for the cause analysis of
arch bridge collapse and collapse resistance capacity evaluation of arch bridge.
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