高效装配钢框架-开缝钢板剪力墙结构性能分析  

Performance Analysis of High-Efficient Prefabricated Steel Frame with Slit Steel Plate Shear Wall

作　　者：张艳霞 张爱林 侯兆新[2] 庞占洋 Yanxia Zhang;Ailin Zhang;Zhaoxin Hou;Zhanyang Pang(School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Central Research Institute of Building and Construction Co.,Ltd.,MCC Group,Beijing 100088,China)

机构地区：[1]北京建筑大学土木与交通工程学院,北京100044 [2]中冶建筑研究总院有限公司,北京100088

出　　处：《钢结构（中英文）》2021年第1期13-33,共21页Steel Construction（Chinese & English）

基　　金：“十三五”国家重点研发计划项目(2017YFC0703806);国家自然科学基金面上项目(51778036);北京建筑大学北京未来城市设计高精尖创新中心项目(UDC2019033124);住房和城乡建设部科学技术计划项目(2017-K9-033)。

摘　　要：近年来,地震灾害频发,传统钢结构建筑震后残余变形大,修复困难,而自复位结构实现了震中微损、震后无需修复或稍加修复即可继续使用的抗震目标,受到国内外学者的广泛关注。近年提出的基于预应力技术和螺栓连接的新型高效装配自复位钢框架结构体系,在与传统自复位钢结构体系相近功能的前提下实现了无需高空张拉、施工周期短的高效装配目标。在此基础上,提出高效装配钢框架-开缝钢板剪力墙结构并完成了结构拟静力试验研究。该结构主要由高效装配钢框架和开缝钢板剪力墙两部分组成,通过高强螺栓进行连接以实现高效装配,其中高效装配钢框架由钢柱和预应力钢梁组成,两者通过钢绞线和高强度螺栓进行连接。利用ABAQUS有限元软件对高效装配钢框架-开缝钢板剪力墙结构试验进行数值模拟。高效装配钢框架结构中的钢柱、预应力钢梁以及钢板剪力墙等主体构件均采用C3D8R八结点六面体线性单元,预应力钢绞线采用T3D3三维三结点桁架单元,计算模型时考虑几何非线性和材料非线性的影响,数值模拟采用与试验一致的位移加载制度。试验与数值模拟在结构弹塑性层间位移角限值1/50时结束。将数值模拟与试验结果进行对比分析,验证有限元分析方法的可靠性。同时将高效装配钢框架-开缝钢板剪力墙结构与没有设置开缝钢板剪力墙的高效装配钢框架性能进行对比,分析了两者的滞回曲线与耗能性能、刚度、自复位能力以及等效塑性应变,进一步研究高效装配钢框架-开缝钢板剪力墙结构的抗震性能和开缝钢板剪力墙的作用。结果表明:数值模拟得到的滞回曲线、框架开口宽度等结果与试验结果吻合较好,能很好地模拟出节点开口闭合机制效果;高效装配钢框架-开缝钢板剪力墙结构具有良好的开口闭合机制和自复位能力,初始刚度高,耗能能力�In recent years,earthquake disasters have occurred frequently.Traditional steel structure buildings have large residual deformations after earthquakes and are difficult to repair.However,self-centering structures have achieved the anti-seismic goal of minimal damage in the earthquake and continued to use without repairing or minor repairing after the earthquake,which has been widely concerned by scholars at home and abroad.A new type of highefficiency assembly self-centering steel frame structure system based on prestressing technology and bolt connection has been proposed in recent years,and the goal of high-efficiency assembly without high-altitude tensioning and short construction period is achieved under the premise of similar functions to the traditional self-centering steel structure system.On this basis,an efficient assembly steel frame with slotted steel plate shear wall structure was proposed and the pseudo-static test study of the structure was completed.The structure is mainly composed of two parts,a high-efficiency assembly steel frame and a slotted steel plate shear wall respectively,which are connected by high-strength bolts to achieve efficient assembly.The high-efficiency assembly steel frame is composed of steel columns and prestressed steel beams,which are connected by steel strands and high-strength bolts.The ABAQUS finite element software was used to numerically simulate the structure test of the high-efficiency assembly steel frame with slotted steel plate shear wall.The main components such as steel columns,prestressed steel beams and steel plate shear walls in the high-efficiency assembly steel frame structure were all adopted C3D8R eight-node hexahedral linear elements,and the prestressed steel strands adopted T3D3 three-dimensional three-node truss elements.The effects of geometric nonlinearity and material nonlinearity were considered when calculating the model,and the numerical simulation adopts the same displacement loading system as the experiment.The test and numerical simulation of

关 键 词：高效装配钢框架 开缝钢板剪力墙 预应力 螺栓连接 性能分析 

分 类 号：TU391[建筑科学—结构工程]