【摘要】 采用理论分析与试验研究相结合的方法 ,通过对试验数据的计算、分析推导出钢管煤矸石混凝土组合材料中核心混凝土的强度准则及本构关系 ;分析了含钢率及混凝土轴心抗压强度对钢管约束下的煤矸石混凝土极限抗压强度的影响规律 ,指出低强度的煤矸石混凝土更适合与钢管相结合形成钢管煤矸石混凝土 ,充分发挥紧箍效应·更多还原

【Abstract】 The constitutive equation and strength criterion on core concrete of gangue concrete filled steel tube were developed by the calculation and analysis based on test data; The maximum compressive strength of gangue concrete restrained by steel tube is affected by steel ratio and gangue concrete standard strength under axial load. The lower strength concrete is more suitable to be filled into steel tube and restraining force is more obvious.更多还原