【摘要】 随着高性能混凝土在实际工程中的不断推广应用,钢管高性能混凝土的力学性能也已引起工程界的广泛关注。以长细比和偏心率为变化参数,共进行了6个矩形钢管高性能混凝土偏心受压构件的试验研究。结果表明,钢管高性能混凝土试件在加载过程中表现出一定的脆性。利用纤维模型法计算了试验构件的极限承载力。最后,利用已有规程中规定的构件承载力计算公式验算了试验结果,二者基本吻合。更多还原

【Abstract】 With the ever-increasing application of high-performance concrete in civil engineering,the demand for research of steel tubular columns filled with high-performance concrete is increasing nowadays.It was aimed at investigating the performance of eccentrically-loaded rectangular steel tubular columns filled with high-performance concrete.Six specimens were tested.The main variables explored in this test program included the slenderness ratio and the load eccentricity.Slightly brittleness was observed during the test,especially in the declining stage.Fiber model was used to calculate the bearing capacity of the specimens.The strengths of the specimens were verified using formulae recommended by current design code.The calculated results were basically agreed with the test results.更多还原