【作者】 徐亮；

【导师】 关群；

【作者基本信息】 合肥工业大学 ， 结构工程， 2015， 硕士

【摘要】 近年来,随着城市建设的快速发展,建筑物建造的高度越来越高对建筑物结构体系的要求也越来越高。钢板剪力墙具有较好的侧向刚度和极限承载能力以及良好的耗能能力在国内外得到了广泛的应用。钢板剪力墙有以下几种形式：非加劲薄钢板剪力墙、非加劲厚钢板剪力墙、加劲钢板剪力墙、两侧开缝的钢板剪力墙、压型钢板剪力墙以及低屈服点钢板剪力墙等。本文依据薄钢板屈曲后强度的原理提出双层夹芯薄钢板剪力墙结构,可以利用钢板屈曲后强度充分利用钢板性能使得结构具有良好的承载力。两片钢板中间填塞隔热、保温、隔音等材料可以实现建筑和使用功能要求,再将钢板与半刚性钢框架相连可以形成双重抗侧力体系。本文通过ANSYS有限元分析软件对半刚接钢框架-双层夹芯薄钢板剪力墙的整体性能进行分析。通过框架柱的刚度、钢板的高厚比、钢板的跨高比等参数改变,得到参数变化对结构抗侧承载力和钢板承担剪力比例两个方面的影响,进而得到结构的荷载-位移曲线、应力云图和结构变形图。结果表明,适当的框架柱能够对双层钢板提供足够的约束使得钢板的拉力带能够充分发展对提高剪力墙的承载力有利,同时也能够体现框架作为第二道抗侧力体系的理念。钢板的承载力随着钢板高厚比的增大而减小,选取合适厚度的钢板既能够提供足够的承载力又能充分发挥钢板的性能。钢板的承载力随着钢板跨高比的增大而增加选取合适的钢板跨度对钢板墙在结构中的应用有重要的意义。此外对结构进行了往复加载的有限元分析,得到结构的滞回曲线、骨架曲线、延性、耗能性能等,从而对半刚接钢框架-双层夹芯薄钢板剪力墙的抗震性能提出一些理论研究成果。结果表明结构的承载力高、刚度大,在循环荷载作用下结构的滞回曲线饱满、耗能值大、延性系数大,因此结构具有良好的抗震性能。更多还原

【Abstract】 In recent years, with the rapid development of city construction,building height were built more and more high.Meanwhile Lateral performance of building structure are increasingly high requirements. steel plate shear wall,which has better lateral stiffness、ultimate bearing capacity and good energy dissipation capacity,has been widely used at home and abroad. Steel plate shear wall has the following several kinds of forms for example Unstiffened thin steel plate shear wall、 Unstiffened thick steel plate shear wall、Stiffened steel plate shear wall、Steel plate shear wall with two slot、 The profiled steel plate shear wall and Low yield point steel plate shear wall.According to the principle of the post buckling strength of thin steel plate the paper presents a double thin steel plate shear wall structure,which has excellent bearing capacity after the plate develop the post buckling strength and has good performance.The double thin steel plate,filled with insulation,thermal insulation,sound insulation and other materials,can realize the construction and functional requirements.Then the steel plate and the semi-rigid steel frame can link together to form double resistance lateral force system.This paper analyzes the whole performance of semi-rigid connection steel frame with double thin steel plate shear wall by the finite element analysis software ANSYS.Through the parameter change of frame column stiffness the depth-thickness ratio and the span depth ratio to get the influence of parameter change on the structure of lateral bearing capacity and the ratio of shear which the steel plate undertake,then draw the load-displacement curve.. stress nephogram and structure deformation.Results indicated that the appropriate frame column can provide enough constraints for the double plate to make the steel belt tension fully develop and improve the bearing capacity of the shear wall, which also reflects the idea that frame is as a second line of the lateral force resisting system. The bearing capacity of steel decreased with increasing of the depth-thickness ratio. So the appropriate thickness of the steel plate selected not only can provide enough bearing capacity but also can give full play to the performance of steel plate. The bearing capacity of steel increased with increasing of the the span depth ratio.Thus, It is significant to select the appropriate steel plate span for the application of the steel plate shear walls.In addition,by the finite element analysis of reciprocating load to the structure we can get the performance of structure such as hysteretic curve、skeleton curve、 ductility and energy dissipation.Then we can provide some research results of the theory about the seismic performance of semi-rigid connection steel frame with double thin steel plate shear wall structure.The results show that the structures has high bearing capacity and stiffness.Under cyclic loading,the structure has plump hysteretic curve、large energy consumption and big ductility coefficient. So the structure has a good seismic performance.更多还原