型钢混凝土异形柱的轴压比限值研究  

The axial compression ration of section steel concrete special-shaped columns

作　　者：赵鸿铁[1] 陈宗平[1] 薛建阳[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《世界地震工程》2008年第1期23-28,共6页World Earthquake Engineering

基　　金：国家自然科学基金资助项目(50478044);陕西省自然科学研究计划项目(2002E213)

摘　　要：利用有限元数值积分法编写了型钢混凝土(SSC)异形柱轴压比限值的计算机程序,利用该程序可以计算任意荷载角、任意配钢形式的SSC异形柱的轴压比限值。对不同配钢形式、不同配钢率、不同截面尺寸、不同混凝土强度等级、不同荷载角作用下的SSC异形柱的轴压比限值进行深入分析。得出了以下主要结论:荷载角、配钢形式、截面尺寸对轴压比限值有明显影响;合理配钢的SSC异形柱的轴压比限值比钢筋混凝土(RC)异形柱有所提高;箍筋约束混凝土作用对轴压比限值有明显提高。according to the definition of balanced failure between tension failure and compression failure,the computer program of the axial compression ration of section steel concrete（SSC） special-shaped columns is compiled by using finite element numerical iteration method.With this program, the axial compression ration of the SSC special-shaped columns can deeply be analyzed,which have different section steel types,different steel ration,different section dimensions and different load angles.The following results can be drawn through theoretical analysis： the load angles,section steel types and section dimensions have obvious effect on the axial compression ratios of the SSC special-shaped columns;the axial compression ration of SSC special-shaped columns can be enhanced than the SSC special-shaped columns;under certain diameter and spacing of stirrups,the axial compression ration of the SSC is obviously raised.

关 键 词：型钢混凝土 异形柱 轴压比限值 有限元数值分析 

分 类 号：P315[天文地球—地震学]