摘要
用有限元法计算了焊接平行弦钢桁架因结点刚性而产生的次应力 ,分析了普通荷载和重载下桁架次应力的大小及其分布规律 。
The secondary stress of the welded parallel-chord steel trusses due to the rigidity of panel po ints is computed by the finite element method. The level and distribution of the secondary stresses in the trusses under common and heavy load is analysed. The reasons resulted the secondary stress are preliminarily discussed. The designin g improvement of the steel trusses is suggested on account of the secondary stre sses.
出处
《武汉化工学院学报》
CAS
2003年第3期22-24,38,共4页
Journal of Wuhan Institute of Chemical Technology
关键词
桁架
钢结构
次应力
次内力
truss
steel structure
secondary stress
secondary internal force
