轴心受压钢管混凝土柱的优化设计  

Optimum Design for Concrete Filled Steel Tube Subjecting to Axial Compression

作　　者：马淑芳[1] 赵均海[1] 魏雪英[1] 

机构地区：[1]长安大学建筑工程学院,西安710061

出　　处：《基建优化》2005年第6期111-113,共3页Optimization of Capital Construction

基　　金：教育部博士点基金资助项目(20040710001);陕西省自然科学基金资助项目(2003E215)

摘　　要：用双剪统一强度理论推导的轴心受压钢管混凝土柱的承载力计算公式作为约束条件,以造价为目标函数,以钢管混凝土中的钢管直径、壁厚、核心混凝土的强度等级等为设计变量,对其进行优化设计,得到了满足使用和最优条件下的基本参数,为轴心受压钢管混凝土柱的设计提供了较好的计算依据。The limit capacity of concrete filled steel tube （CFST） is derived from the Twin Shear Unified Strength Theory. The calculating formulas can be looked as the restriction conditions. Taking the cost as the aim function, the steel tube dlameter,the wall thickness and the intensity rank of the core concrete as design variables, we can do some optimunm designs for CFST. And the basic parameters can be received satisfiying the using and optimunm conditions. They can be taken as better caculating evidences for the design of axial compression pole of CFST.

关 键 词：钢管混凝土 双剪统一强度理论 优化设计 

分 类 号：TU392.3[建筑科学—结构工程]