摘要
通过对具体工程实例进行分析 ,利用有限元进行模拟 ,得出了温降作用下结构内部的温度应力的大小及其分布规律。从而对超长结构的温度作用进行探讨 ,分析了目前建筑物中常见温度裂缝的产生原因。同时对预应力作用进行模拟 。
The thermal stress of a real structure was analyzed with finite element analysis (FEA)method,and the rules of the thermal stress distribution were given.Then,the reasons of the familiar thermal cracks were discussed.At last,the effect of prestressing was simulated,and the influence of the prestress on structure cracking was discussed.
出处
《低温建筑技术》
2004年第4期50-51,共2页
Low Temperature Architecture Technology
关键词
温度应力
预应力
裂缝
thermal stress
prestress
crack
