钢管混凝土柱轴向受压承载力的理论研究  

THEORY STUDY ON AXIAL LOADING CAPACITY OF STEEL TUBE CONFINED HIGH-STRENGTH CONCRETE COLUMNS

作　　者：王力尚 李玉[2] 

机构地区：[1]中建国际建设公司,北京100026 [2]平顶山工学院,平顶山467001

出　　处：《工业建筑》2007年第8期22-24,共3页Industrial Construction

摘　　要：运用塑性力学理论,对钢管的三向应力和核心混凝土的约束机制进行研究。认为在塑性阶段,外围钢管的三向应力符合Von Mises屈服条件;核心混凝土的三向受压大大提高钢管混凝土构件的极限承载力。采用不同的核心混凝土破坏准则,所得到的结果不一样。It is studied a steel tube＇ s three-dimensional stress and core＇ s concrete constraint mechanism by plastic mechanical theory. It is also considered that steel tube＇ s three dimensional stress meets R. Von Mises yield condition at plastic stage. Three-dimensional compression of the cure concrete can increase greatly the ultimate bearing capacity. With different core concrete failure criterion, and different results can be got.

关 键 词：三向应力 核心混凝土 约束机制 极限承载力 破坏准则 

分 类 号：TU398.9[建筑科学—结构工程]