梯形钢屋架下弦弹性伸长对支承构件的影响  

Effect on Supporting Member by Elastic Elongation of Lower Chord of Trapezoid Steel Roof Truss

作　　者：赵广鹏[1] 

机构地区：[1]中国电子工程设计院,北京100840

出　　处：《建筑结构》2002年第5期22-23,共2页Building Structure

摘　　要：两端铰支于柱顶的跨度为 3 0 ,3 6m的梯形钢屋架 ,在某些情况下屋架下弦弹性伸长对支承边柱产生较大的附加内力 ,在设计中不容忽视。通过工程实例进行了分析 ,提出了具体的设计建议。When a trapezoid steel roof truss of 30,36m span is simply supported on the top of side column,the additional internal force of the side column caused by the elastic elongation of lower chord should not be neglected in the design.

关 键 词：梯形钢屋架 下弦 弹性伸长 支承构件 附加内力 结构变形 

分 类 号：TU391[建筑科学—结构工程]