无侧移半刚性连接钢框架柱的计算长度系数  

Effective Length Factor of Columns in Semi-rigid Jointed and Braced Steel Frames

作　　者：张凤文[1] 贺小燕[1] 

机构地区：[1]燕山大学建筑工程与力学学院,秦皇岛066004

出　　处：《燕山大学学报》2004年第3期240-244,共5页Journal of Yanshan University

摘　　要：根据梁柱理论建立半刚性连接梁柱的转角位移方程,在梁端弯矩中考虑半刚性特性,再将横梁对柱的约束弯矩按柱的线刚度之比分配给柱。计算模型采用三柱模型,应用位移法建立无侧移半刚性连接钢框架柱计算长度系数的公式。该计算公式的形式回归到刚性钢框架柱计算长度系数公式,其计算长度系数表与刚性框架柱计算长度系数完全相同,使用方便。According to the beam-column theoretic, this paper establishes the slope-deflection equation for semi-rigid connections. The semi-rigid behavior is considered in the moment of beam end, then according to the ratio of column linear stiffness, distributing the restrained moments from beam in the semi-rigid connection to column. Three-column modeling is adopted as calculation modeling. Applying displacement method, the formula for effective length factor of column in semi-rigid jointed and braced frames is established. The format of the formula expression regresses to that of the effective length factor of column in rigid jointed and braced frames. The table of the two kinds of effective length factor of column is the same. The method established in this paper is easy to use.

关 键 词：无侧移钢框架 半刚性连接 计算长度系数 转角位移方程 

分 类 号：TU391[建筑科学—结构工程]