钢管混凝土截面形状的比选研究

Study on comparison and optimization of section types of concrete-filled steel tube

不同截面形状的钢管混凝土在不同的压弯条件下所表现出来的承载力性质是不同的,当给定压弯设计荷载后不同截面形状的钢管混凝土具有不同的经济性。通过计算和分析不同形状钢管混凝土的承载能力,找出了一种实用的优选截面形状的方法,使构件在满足承载力要求的前提下经济性最佳,对钢管混凝土截面选型具有参考价值。

Concrete-filled steel tubes with different section types have different bearing capacity under different combined axial and bending loads, so when the design values of axial and bending loads are given, concrete-filled steel tubes with different section types result in different economic results. A practical optimization method of section types is given according to the calculation and analysis results of the load capacity of concrete-filled steel tubes with different section types. The concrete-filled steel tube with the optimized section type satisfies the demand of both loading capacity and optimization of economy.