摘要
门式刚架结构设计中,为满足大跨度、大空间设计需要,常常需要在边榀框架设置抗风柱。为节省用钢量,抗风柱一般设计成上下两端铰接的摇摆柱。设置摇摆柱可以同时减小梁柱内力和截面,使结构用钢量更低,受力更合理,然而摇摆柱的设置往往使刚架边柱的长细比超限,为此提出降低边柱平面内计算长度,增大稳定承载力的建议。
In portal frame structure design, in order to meet the large-span, large space needs, and save the amount of steel, Wind column generally is designed swing column with the upper and the end hinged in the side of frame. Swing column can be set up to reduce the internal forces and the cross-section beams and columns. However, the side frame column slenderness ratio often exceeded with the set of swing column. At the end of this paper, recommendations for the designers was proposed to reduce the length of side column and increasing its stability capacity.
出处
《建筑技术》
北大核心
2010年第9期852-853,共2页
Architecture Technology
关键词
门式刚架
计算长度
摇摆柱
稳定承载力
portal frame
effective length
swing column
stability capacity
