论文部分内容阅读
进行了4个配T形钢桁架和槽形钢桁架的空腹式配钢十字形SRC异形柱试件的低周反复加载试验,试验的变化参数有荷载加载方向、截面配钢方式、轴压比和剪跨比。通过试验揭示了空腹式配钢的十字形SRC异形柱的受力机理和破坏形态,获取了其滞回性能、开裂荷载及极限承载力,并分析了其破坏特点。在试验基础上,分析推导了其开裂荷载、极限承载能力的计算方法和计算公式,计算值与试验值吻合较好。
Low-cycle repeated loading tests were carried out for 4 cross-shaped SRC special-shaped columns with T-shaped steel trusses and channel steel trusses. The test parameters were load loading direction, cross-section steel distribution method, axial compression ratio And shear cross ratio. The stress mechanism and failure mode of the cross-shaped SRC special-shaped columns of fast-acting steel-distribution steel were revealed through experiments. The hysteretic behavior, cracking load and ultimate bearing capacity were obtained. The failure characteristics were also analyzed. Based on the experiment, the calculation method and calculation formula of cracking load and ultimate bearing capacity are analyzed and calculated. The calculated values are in good agreement with the experimental values.