装配式型钢约束混凝土剪力墙结构体系抗震性能试验研究

发布时间：2018-03-31 23:00

本文选题：建筑工业化　切入点：装配式剪力墙　出处：《长春工程学院》2017年硕士论文

【摘要】：近年来,随着我国城镇化速度的不断加快和全球关注环保事业的持续升温,以装配式建造为主的建筑工业化得到了越来越多的关注。与现浇技术相比,装配式建造能够合理配置社会资源,解决住房紧张问题,提高工作效率,节约劳动力,有利于环保施工,因而能够带来更大的经济效益和社会效益。作为建筑工业化范畴内的一种主要结构体系,装配式剪力墙结构由于能够承担各种荷载引起的内力并能有效地控制结构的水平力,因此适宜在高层建筑中应用,国内外学者对该结构进行了一系列的研究并取得了一些具有价值的成果。本文在现有研究成果的基础上并针对其中的不足提出了装配式型钢约束混凝土剪力墙结构体系,并对该结构体系的抗震性能进行了研究,主要研究内容和结论如下:(1)设计并建造了一个1/2缩尺的装配式型钢约束混凝土剪力墙结构的单跨三层试验结构模型,从中发现该结构体系与其他装配式剪力墙结构相比构造简单明了,具有施工速度快、质量易于保证、施工精度要求较低的优势,能够简化施工工艺,提高施工效率。(2)对试验模型进行了拟静力加载试验,在试验的过程中,观察了试验现象,并对规定测点的位移值和应变值进行了采集,试验表明结构为延性破坏,能承受较大的塑性变形,连接节点安全可靠。(3)对试验数据进行了处理与分析,结果表明:结构滞回曲线饱满,具有较好的恢复力特性,试验后期承载力下降速度和刚度退化速度较慢,随着位移的增大,结构的耗能能力不断增强,各层在弹塑性阶段的层间位移角均满足规范要求,结构整体延性系数较大,结构的抗震性能良好。(4)运用ABAQUS对结构体系纵横墙连接模型进行有限元数值模拟分析,分析结果表明:结构体系构造合理,竖向缝连接节点能够使结构具有良好的延性和整体性,进一步说明结构体系具有良好的抗震性能。
[Abstract]:In recent years, with the acceleration of urbanization and the global concern for environmental protection, more and more attention has been paid to the construction industrialization, which is based on prefabricated construction, compared with cast-in-place technology. Prefabricated construction can reasonably allocate social resources, solve housing shortage problems, improve work efficiency, save labor force, and be beneficial to environmental protection construction. Therefore, it can bring greater economic and social benefits. As a main structural system in the field of building industrialization, the prefabricated shear wall structure can bear the internal force caused by various loads and effectively control the horizontal force of the structure. Therefore, it is suitable for application in high-rise buildings. Scholars at home and abroad have carried out a series of research on the structure and obtained some valuable results. Based on the existing research results and in view of the shortcomings of the existing research, this paper puts forward the structure system of prefabricated steel confined concrete shear wall. The main contents and conclusions are as follows: 1: 1) A one-span three-story experimental structure model of fabricated steel reinforced concrete shear wall structure with a scale of 1 / 2 is designed and constructed. It is found that compared with other fabricated shear wall structures, the structure of this structure system is simple and clear, with the advantages of fast construction speed, easy quality assurance, low construction precision requirement, and can simplify the construction technology. In the course of the test, the phenomenon of the test is observed, and the displacement value and strain value of the specified measuring point are collected. The test results show that the structure is ductile failure. The test data are processed and analyzed. The results show that the hysteretic curve of the structure is full and has good restoring force characteristic. In the later stage of the test, the decreasing speed of bearing capacity and the degradation speed of stiffness are slow. With the increase of displacement, the energy dissipation capacity of the structure increases continuously, the inter-story displacement angle of each layer meets the requirements of the code in the elastic-plastic stage, and the overall ductility coefficient of the structure is larger. The finite element numerical simulation analysis of the longitudinal and transverse wall connection model of the structure system is carried out by using ABAQUS. The results show that the structure of the structure system is reasonable and the joint of vertical joint can make the structure have good ductility and integrity. It further shows that the structural system has good seismic performance.
【学位授予单位】：长春工程学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU398.2;TU352.11

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