钢管混凝土框架—组合剪力墙在高层建筑中的应用研究

发布时间：2018-05-16 13:55

本文选题：钢管混凝土 + 组合剪力墙　；参考：《东南大学》2016年硕士论文

【摘要】：钢管混凝土组合柱和组合剪力墙具有承载力高和抗震性能好等优点,协同组合使用,优势互补,形成钢管混凝土框架-组合剪力墙结构体系。相对于以往的框架-钢筋混凝土剪力墙结构,此类结构有效减小了竖向受力构件的截面尺寸,减轻了结构自重,方便建筑使用功能的合理布局,同时也降低了主体结构及基础工程的造价,带来一定的经济效益。论文结合实际工程,开展钢管混凝土框架-组合剪力墙在高层建筑中的应用研究,重点研究其结构的抗震性能,具有重要的实用价值。论文主要工作和研究成果如下：本文以山西省晋中市景汇大厦为工程背景,开展了钢管混凝土柱和组合剪力墙在我国高层建筑应用实例的分析研究,研讨了钢管混凝土框架柱及组合剪力墙结构的受力特点和承载力计算方法,提出了格栅式双钢板混凝土组合剪力墙的新理念,研究了钢管混凝土框架-组合剪力墙结构体系抗震性能的合理性和优越性。论文开展了高层建筑结构抗震分析方法,尤其是静力弹塑性(Pushover)分析方法的讨论,详细分析了Pushover中能力谱法和目标位移法的运作流程及实施步骤,对Pushover分析过程中所采用的水平加载模式进行了对比分析,对钢管混凝土框架-组合剪力墙结构体系进行了抗震分析实用性的讨论。结合实际工程,进行了钢管混凝土框架和型钢混凝土组合剪力墙结构体系的选型和布置分析讨论。采用PKPM和ETABS结构设计分析软件,建立有限元模型,对该楼在地震力作用下的基本周期、层位移、层间位移角等抗震参数进行对比、分析和研究,以验证整体结构在多遇地震情况下参数是否满足抗震规范要求,同时通过ETABS进行弹性时程补充计算,为整体结构提供有效的多遇地震分析和应用判断。开展PKPM有限元结构模型在罕遇地震作用下的结构静力弹塑性分析研究,并采用PKPM软件EPDAPUSH模块进行弹塑性动力时程分析。采用Pushover分析方法时,针对该楼开展了罕遇地震下抗震性能的分析研究,进行了该楼能力谱与需求谱的Pushover关系分析研究,验证了钢管混凝土框架-型钢混凝土组合剪力墙体系应用于高层建筑结构中具有良好的抗震性能。最后,对钢管混凝L框架-格栅式双钢板混凝土组合剪力墙新结构体系进行了抗震分析探究,研究表明：新的结构体系具有更加优良的抗震性能,具有良好的应用前景。
[Abstract]:Concrete-filled steel tubular composite columns and composite shear walls have the advantages of high bearing capacity and good seismic performance. Compared with the previous frame-reinforced concrete shear wall structure, this kind of structure can effectively reduce the cross-section size of the vertical members, reduce the weight of the structure, and facilitate the rational layout of the function of the building. At the same time, it also reduces the cost of the main structure and foundation engineering, and brings certain economic benefits. In this paper, the application of concrete-filled steel tubular frame-composite shear wall in high-rise buildings is studied, and the aseismic performance of the structure is studied, which is of great practical value. The main work and research results are as follows: based on Jinzhong Jinzhong Jinghui Building in Shanxi Province, the concrete filled steel tubular column and composite shear wall are analyzed and studied in the application of high-rise buildings in China. This paper discusses the stress characteristics and bearing capacity calculation method of CFST frame column and composite shear wall structure, and puts forward a new concept of grid-type double-plate concrete composite shear wall. The rationality and superiority of seismic behavior of CFST frame-composite shear wall structure system are studied. In this paper, the seismic analysis methods of high-rise building structures, especially the static elastic-plastic Pushovere analysis method, are discussed. The operation flow and implementation steps of the capacity spectrum method and the target displacement method in Pushover are analyzed in detail. The horizontal loading mode used in Pushover analysis is compared and the practicability of seismic analysis of concrete-filled steel tubular frame-composite shear wall structure system is discussed. Combined with practical engineering, the selection and arrangement of steel tubular concrete frame and steel reinforced concrete composite shear wall structure system are analyzed and discussed. The finite element model is established by using PKPM and ETABS structural design and analysis software. The seismic parameters such as basic period, floor displacement and interstory displacement angle of the building under the action of earthquake force are compared, analyzed and studied. In order to verify whether the parameters of the whole structure meet the requirements of the seismic code in the case of frequent earthquakes, the elastic time-history supplementary calculation is carried out through ETABS to provide effective earthquake analysis and application judgment for the whole structure. The static elastoplastic analysis of PKPM finite element structural model under rare earthquake is carried out, and the elastoplastic dynamic time history analysis is carried out by using PKPM software EPDAPUSH module. When the Pushover analysis method is used, the seismic behavior of the building under rare earthquake is studied, and the Pushover relationship between the capacity spectrum and the demand spectrum of the building is analyzed. It is verified that the steel tubular frame-steel reinforced concrete composite shear wall system has good seismic performance in high-rise building structures. Finally, the seismic analysis of the new structure system of steel tube coagulated L frame and double steel plate concrete composite shear wall is carried out. The results show that the new structure system has better seismic performance and has a good application prospect.
【学位授予单位】：东南大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TU973.16

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