无支撑半刚性连接钢框架的简化分析  

SIMPLIFIED ANALYSIS OF UNBRACED STEEL FRAME WITH SEMI-RIGID CONNECTION

作　　者：徐伟良[1] 郑廷银[2] 孙宇坤[1] 

机构地区：[1]浙江工业大学,杭州310014 [2]南京工业大学,南京210009

出　　处：《工业建筑》2005年第4期85-87,共3页Industrial Construction

基　　金：浙江省自然科学基金资助项目 (批准号 :5 0 10 93 )

摘　　要：用变刚度的螺旋弹簧模拟梁柱节点半刚性连接的弯曲特性 ,建立了半刚性连接钢框架梁单元的刚度矩阵。通过分别引入横梁修正线刚度和修正转动刚度 ,将等效代替框架法和无剪力分配法推广应用于无支撑半刚性连接钢框架的结构分析 。The beam element stiffness matrix of semi-rigidly connected steel frames is derived by using a rotation spring which has variable stiffness to model bending behavior of beam-column semi-rigid connection. And by introducing a modified beam linear stiffness and a modified beam rotation stiffness respectively, the equivalent substitution rigidly connected frame method and the non-shear force distribution method are applied in structural analysis of unbraced steel frame with semi-rigid connections. Those two kinds of calculation methods are relatively simple and easy.

关 键 词：半刚性连接 钢框架 无支撑 简化分析 无剪力分配法 弯曲特性 梁柱节点 螺旋弹簧 刚度矩阵 转动刚度 结构分析 推广应用 等效代替 变刚度 梁单元 线刚度 框架法 

分 类 号：TU391[建筑科学—结构工程] TU753.1