卷边翼缘工形构件稳定性能及经济性能分析  

COMPARISON OF STABILITY CAPACITY AND ECONOMIC PERFORMANCE BETWEEN LIPPED H-SECTION MEMBERS AND H-SECTION MEMBERS

作　　者：张婀娜[1] 郭彦林[1] 

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《工业建筑》2009年第9期28-31,共4页Industrial Construction

摘　　要：以卷边工形构件和普通工形构件为研究对象,从稳定性能和经济性能两方面进行对比。首先,分析二者屈曲形式的异同,并通过对比二者腹板和翼缘的屈曲系数来反映二者稳定性能的差异。然后,基于弹塑性范围内的稳定承载力有限元分析,从两方面入手对二者的经济性能进行研究:一是用钢量相同,比较二者的承载力;二是承载力相同,比较二者的用钢量。研究结果表明:卷边工形构件是一种较工形构件更为经济高效的型材。Lipped H-section members and common H-section members are compared in both stability capacity and economic performance. Firstly, different buckling modes of the two types of members are presented, and the difference of stability capacity between them can be seen clearly by the comparison of buckling coefficient of sections. Based on FE analysis considering large deformation and material elastic-plasticity, the economic performance is researched in two aspects： comparison of stability bearing capacity with the same steel consumption and comparison of steel consumption with the same stability bearing capacity. It is proved that lipped H-section members are more economic and effective than H-section members.

关 键 词：卷边工形构件 畸变失稳 承载力 用钢量 

分 类 号：TU392.1[建筑科学—结构工程]