中文摘要：

以端板预拉对穿螺栓连接的卷边钢板组合截面PEC柱（强轴）-钢梁（削弱截面）组合框架中间层子结构试验试件作为研究对象,利用有限元软件ABAQUS对其进行拟静力循环荷载下抗震机理的数值模拟.基于模拟结果,对比分析试件结构的承载力、抗侧刚度衰减、连接性能、耗能能力、剪力分配、变形模式、节点传力和破坏机构等抗震性能.结果显示：试件具有较大的承载能力、较高的初始抗侧刚度和优越的耗能能力;PEC框架柱平均分担层间水平剪力,层间变形表现为剪切型变形模式;预拉对穿螺栓设置使得连接表现出一定程度的自复位功效,而梁截面削弱进一步改善了连接的转动能力和试件整体耗能延性;试件最终破坏模式为所有梁端削弱截面处形成塑性铰的塑性倒塌机构,且形成对应层间侧移角和连接转角均超过中震层间侧移限值1/50,表明该结构体系具有良好的抗倒塌性能.

英文摘要：

One test specimen of inter-story substructure of crimping PEC column （strong axis）-reduced- section steel beam composite frame with end plates and pretension penetrating bolts connection was taken as investigation subject to simulate its anti-seismic mechanism under quasi-static cyclic lateral loading by software ABAQUS. Based on the simulated data, the specimen＇s performance as the loading-carrying capacity, degradation of lateral stiffness, shear distribution, deformation mode and failure mechanism were analyzed. The results indicate that the specimen has high strength, lateral stiffness and soundly energy- dissipation capacity inter-story shear is equally shared by PEC columns and its deformation exhibits shearing mode; all joints exhibited various degrees of self-centering function and reduced-section guarantee sufficiently the rotation of joints and energy-dissipation capacity; the collapse mechanism form primarily induced by plastic hinge forming in reduced cross-section of steel beam, and connection rotation and interstory drift both surpass the limit （1/50） of medium earthquake for frame structure, hence the specimen owns collapse resistance.