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梭柱节点是传统风格建筑的特点之一,通过对采用矩形型钢混凝土柱与钢筋混凝土圆柱(SRC-RC)梭柱节点和方钢管混凝土柱与钢筋混凝土圆柱(CFST-RC)梭柱节点两种不同梭柱节点的低周反复荷载试验,比较了不同类型梭柱节点在不同轴压比下的受力性能,研究了其承载能力、破坏形态、滞回性能、耗能能力、变形及延性。试验结果表明:SRC-RC梭柱节点和CFST-RC梭柱节点在试验过程中均发生弯剪破坏;各组构件的滞回曲线均比较饱满,在试验过程中均表现出良好的滞回性能及耗能能力,抗震性能优于普通钢筋混凝土梭柱节点;轴压比的变化对于梭柱节点的极限承载力和延性有一定影响;CFST-RC梭柱节点比SRC-RC梭柱节点具有更好的抗震性能。
The shuttle-column node is one of the characteristics of traditional-style buildings. It adopts two types of steel concrete column and reinforced concrete column (SRC-RC) shuttle-column node and square-pipe concrete column and reinforced concrete column (CFST-RC) shuttle column node. The low-cycle repeated load tests of different spindle-column nodes compared the mechanical behavior of different types of spindle-column joints under different axial-to-axial pressure ratios. The load-carrying capacity, failure modes, hysteretic properties, energy dissipation capacity, deformation, and ductility were studied. . The test results show that the SRC-RC spinel node and the CFST-RC spindle-column joint both undergo flexural-shear failure during the test; the hysteresis curves of the components of each group are relatively full, showing good hysteresis performance during the test. With energy dissipation capacity, seismic performance is better than that of ordinary reinforced concrete bollard nodes; the change of axial compression ratio has certain influence on the ultimate bearing capacity and ductility of the spindle-column nodes; CFST-RC spindle-column nodes have more advantages than SRC-RC spindle-column nodes. Good anti-seismic performance.