半刚性连接钢框架的内力计算  

The analysis of internal force for steel frame with semi-rigid connections

作　　者：孙玉萍[1] 马洪伟[1] 冯东海[1] 

机构地区：[1]兰州理工大学土木工程学院,甘肃兰州730050

出　　处：《四川建筑科学研究》2008年第3期39-43,共5页Sichuan Building Science

基　　金：甘肃省自然科学基金资助项目(GS022-A52-083)

摘　　要：采用比较适合结构分析的三参数力学模型模拟半刚性连接梁柱节点的弯矩—转角性能。根据小变形叠加原理,推导了半刚接梁单元杆端弯矩的计算公式与总刚度方程。在此基础上,考虑了半刚接钢框架的几何非线性和连接柔性的影响,利用有限元方法进行实例分析,详细地分析了刚接框架与半刚接框架的内力对比。分析结果表明:该计算方法可靠,可供有关工程设计人员参考。The moment-rotation relation of beam-to-column semi-rigid connections was simulated with the three parameter mechanical model. The calculation formulas of the end moments ,the total stiffness matrix equation and the transmission coefficient of beam elements with semi-rigid connections were presented on the basis of the superposition principle under small deformation. Based on these theories, taking into account of the effects of the connections and the geometric nonlinearity of the members, by the method of finite element analysis, analyzed the internal force of rigid frame and semi-rigid frame. The results showed that the proposed methods were reliable and helpful for the engineering design personnel.

关 键 词：半刚接钢框架 连接柔性 内力 

分 类 号：TU375.4[建筑科学—结构工程]