【作者】 钟善桐； 张素梅；

【Author】 Zhong Shantong Zhang Sumel (Hartin Architectural and Civil Engineering Institute)

【机构】 哈尔滨建筑工程学院；

【摘要】 根据三向受压核心混凝土的本构关系和三向应力状态钢管的本构关系。采用有限元方法导得了轴心受压时的荷载-纵向应变全过程系列曲线,包括空心钢管混凝土和实心钢管混凝土,计算全过程曲线和实验曲线吻合很好,从而形成了一套完整的分析钢管混凝土轴心受压构件综合性能的理论体系。更多还原

【Abstract】 According to the constitutive relations of the concrete under triaxial compression and the steel in triaxial stresses state,the finite element method has been used to obtain a series of rela- tionships between load and longitudinal strain of CFST(Concrete Filled Steel Tube),the hollow and solid CFST being included. The calculated relationships are closed to the experimental results.Hence,a perfect theoreti- cal system is formed to analyse the comprehensive behaviors of CTST under axial compression.更多还原