不同预应力下附加角钢的装配边节点抗震性能

Anti-seismic Property of Assembling Frame Edge Nodes with Additional Angle Steels under Different Prestressing Force

本试验通过对2个不同预应力下附加角钢的预应力装配式混凝土框架结构边节点和现浇钢筋混凝土框架结构边节点进行了水平低周反复荷载下的试验,研究了不同预压应力对附加角钢的预应力装配框架边节点的破坏形态、滞回曲线、骨架曲线等抗震性能的影响。结果表明:附加角钢的预应力装配框架边节点具有良好的抗震性能,提高预压应力在一定程度上可以提高节点的抗震性能。

Through the low cyclic loading tests on prestress assembling frame edge nodes with additional angle steels under different prestress force and the cast-in-situ reinforced concrete frame edge node,it was studied that anti-seismic property indexes such as cracks,failure,hysteretic curves,skeleton curves that the prestress assembling frame edge nodes with additional angle steels under different prestress force and the cast-in-place reinforced concrete structure node.The results show that the prestress assembling frame edge nodes with additional angle steels possess good anti-seismic performance,enhancing the compressive pre stress to a certain extent,can improve the seismic behavior of the nodes.