1/2模型端板竖放门式刚架循环荷载试验研究

Cyclic loading test of half-scale vertical end-plate connections of single storey factory building

为研究端板竖放门式刚架轻型房屋钢结构抗震性能,对3个半榀比例为1/2且端板竖放门式刚架试件进行水平循环荷载试验研究,分析了端板厚度,螺栓直径,螺栓排布等因素对节点承载力、转动刚度、转动能力和极限破坏状态的影响和门式刚架在水平循环荷载作用下的滞回性能。试验结果表明端板竖放节点的门式钢架耗能不好,滞回曲线不饱满,并且其破坏模式不同于一般钢框架,端板厚度,螺栓直径,螺栓排布等因素对门式钢架滞回性能影响很小。

Horizontal Cyclic loading test of 3 half-scale vertical end-plate connections of single storey factory building were carried to investigate their seismic behavior.The influences of end-plate thickness,bolt diameter,bolt numbers on the loading-carrying capacity,rotational stiffness,rotational capacity,ductility,ultimate failure modes and energy dissipation have been analyzed.These speciment showed not well hysteretic behavior and energy dissipation under cyclic loads.what’s more the load-displacement curve is not full,and then the ultimate failure modes is different from steel frame,at last there is a little influences of end-plate thickness,bolt diameter,bolt number on the behavior of ductility and energy dissipation.