摘要
负荷条件下对网架结构进行加固时,焊接残余应力对网架结构的内力、变形有较大影响。本文结合某网架负荷加固工程,通过运用ANSYS有限元软件对焊接杆件施加等效温度荷载的方式,模拟网架负荷加固杆件焊接时的热胀冷缩。通过相应的应力、变形分析,得出焊接残余应力对网架结构负荷加固的影响。
Load conditions on the grid structure reinforce- ment, the welding residual stress has a great influence on inter- nal force and deformation of space truss structure. Based on a rack load reirfforcement engineering, the finite element software ANSYS to exert the equivalent temperature load of welding rods, simulation grid load when the reinforcing bar welding heat bilges cold shrink. Through the corresponding stress and deformation analysis, strengthening the influence of welding residual stress of space truss structure load.
出处
《四川建材》
2013年第3期60-61,共2页
Sichuan Building Materials
关键词
网架
负荷加固
焊接残余应力
grid
load reinforcement
welding residual stress
