增设翼墙加固框架柱正截面承载力研究  

BEARING CAPACITY OF FRAME’S COLUMN STRENGTHENED WITH ADDITIONAL FLANGE WALL

作　　者：范超 王汝恒[1] 贾彬[1] 郭文[1] 

机构地区：[1]西南科技大学土木工程与建筑学院,四川绵阳621010

出　　处：《工业建筑》2011年第4期38-41,123,共5页Industrial Construction

基　　金：国家支撑计划863项目(2009AA032304)资助

摘　　要：汶川地震中,大量框架结构由于柱抗侧刚度不足产生破坏,增设翼墙加固框架结构能有效提高其抗侧刚度。通过对实际工程的翼墙加固柱进行了截面承载力分析,采用数值积分方法得出此类异形截面在双向偏心作用下正截面的N-M曲线、Mx-My曲线,并计算出实际工程中,单片翼墙不同配筋的Mx-My包络图,为截面设计及截面复核提供参考依据。A large number of frames damaged due to the poor lateral stiffness in Wenchuan Earthquake.Additonal flange wall could effectively improve the lateral stiffness.This paper analyzed the bearing capacity of special-shaped column of the practical engineering structures;meanwhile,it was obtained N-M curve and Mx-My curve of biaxial eccentricity compression based on numerical integration method.In addition,the Mx-My envelope diagram of an actual project was also calculated,which could provide a reference for section design and check.

关 键 词：增设翼墙加固 双向偏心 正截面承载力 数值积分 

分 类 号：TU312[建筑科学—结构工程]