钢筋混凝土异形柱框架斜撑结构特性探讨  

Theoretical Analysis of Frame with R.C.Special shaped Column bracing System

作　　者：陈勤[1] 吴晖[2] 严士超[2] 

机构地区：[1]清华大学土木系,北京100084 [2]天津大学土木系,300072

出　　处：《建筑结构》2001年第5期19-22,共4页Building Structure

摘　　要：以K形斜撑为代表 ,采用杆系空间分析模型 ,通过对一批异形柱框架 斜撑结构典型工程算例的系统理论分析 ,研究了地震作用下钢筋混凝土异形柱框架 斜撑结构的内力分布规律、水平位移特性及自振特性。提出了自振周期的近似计算公式、斜撑与框架侧移刚度比范围及确定斜撑截面高度的公式 。Based on the theoretical analysis of a set of representative examples of frame with R.C special shaped column K shaped bracing system,by using 3 dimensional analysis model of bar system,the regularity of inner force distribution,characteristics of horizontal displacement and vibration characteristics of frame with R.C special shaped column bracing system are studied.The approximate formula of vibration period,the range of stiffness ratio of bracing to frame and the formula to determine the depth of bracing cross section are proposed,which are of practical engineering values.

关 键 词：钢筋混凝土 异形柱 框架-斜撑结构 内力 分布 

分 类 号：TU375.3[建筑科学—结构工程]