基于性能剪力墙结构抗震评估与应用
发布时间：2018-12-23 20:21
【摘要】：当结构的变形耗能能力值与其需求值不一致时,建筑结构会发生倒塌。基于性能的抗震设计(简称PBSD)理论能够在结构构件变形的基础上定量地分析其变形能力。同时,基于性能的抗震设计能综合考虑生命安全和财产损失的要求,将“小震不坏,中震可修,大震不倒”的三级设防水准进行细化和具体化,是当前建筑结构抗震设计的发展趋势。 本文以剪力墙结构性能化设计为研究对象,首先介绍了基于性能抗震设计方法的发展状况,讨论了划分结构性能目标、性能水平的原则,介绍了基于性能抗震设计的理论和设计方法,研究了剪力墙结构的性能指标,总结了性能化设计方法的优越性。同时探讨了静力弹塑性分析方法的基本原理、优点及用途,介绍了静力弹塑性分析的实施步骤,阐述了能力谱法、等效位移系数法等几种基于性能的弹塑性分析方法。 采用有限元分析软件PKPM对一实际剪力墙结构工程进行了分析。该结构先采用SATWE软件进行剪力墙弹性阶段的计算分析,再用PUSH软件结合能力谱法对该结构在罕遇地震作用下的弹塑性变形进行计算分析,得到结构的性能曲线、影响结构性能的层间位移角曲线及性能点塑性铰的分布情况。当结构的弹塑性分析推覆达到性能点要求时,层间位移角满足规定的限值要求,结构具有良好的耗能能力。
[Abstract]:When the deformation energy dissipation capacity of the structure is not consistent with its demand value, the building structure will collapse. The theory of performance-based seismic design (PBSD) can quantitatively analyze the deformation capacity of structural members on the basis of deformation. At the same time, the performance-based seismic design can comprehensively consider the requirements of life safety and property loss, and refine and concretize the three-level fortification level of "small earthquake is not bad, medium earthquake is repairable, big earthquake is not going down". It is the development trend of aseismic design of building structure at present. This paper takes the performance-based design of shear wall structure as the research object. Firstly, the development of performance-based seismic design method is introduced, and the principle of dividing the performance target and performance level of the structure is discussed. This paper introduces the theory and design method of performance-based seismic design, studies the performance index of shear wall structure, and summarizes the superiority of performance-based design method. At the same time, the basic principle, advantages and applications of the static elastic-plastic analysis method are discussed. The implementation steps of the static elastic-plastic analysis are introduced, and several performance-based elastoplastic analysis methods, such as the capability spectrum method and the equivalent displacement coefficient method, are described. The finite element analysis software PKPM is used to analyze a practical shear wall structure engineering. At first, the SATWE software is used to calculate and analyze the elastic stage of shear wall, then the elastoplastic deformation of the structure under rare earthquake is calculated and analyzed by PUSH software combined with capability spectrum method, and the performance curve of the structure is obtained. The interstory displacement angle curve and the distribution of the plastic hinge of the performance point. When the elastic-plastic analysis of the structure meets the requirement of the performance point, the interstory displacement angle meets the specified limit value, and the structure has good energy dissipation capacity.
【学位授予单位】：河北工程大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU352.11
本文编号：2390213
[Abstract]:When the deformation energy dissipation capacity of the structure is not consistent with its demand value, the building structure will collapse. The theory of performance-based seismic design (PBSD) can quantitatively analyze the deformation capacity of structural members on the basis of deformation. At the same time, the performance-based seismic design can comprehensively consider the requirements of life safety and property loss, and refine and concretize the three-level fortification level of "small earthquake is not bad, medium earthquake is repairable, big earthquake is not going down". It is the development trend of aseismic design of building structure at present. This paper takes the performance-based design of shear wall structure as the research object. Firstly, the development of performance-based seismic design method is introduced, and the principle of dividing the performance target and performance level of the structure is discussed. This paper introduces the theory and design method of performance-based seismic design, studies the performance index of shear wall structure, and summarizes the superiority of performance-based design method. At the same time, the basic principle, advantages and applications of the static elastic-plastic analysis method are discussed. The implementation steps of the static elastic-plastic analysis are introduced, and several performance-based elastoplastic analysis methods, such as the capability spectrum method and the equivalent displacement coefficient method, are described. The finite element analysis software PKPM is used to analyze a practical shear wall structure engineering. At first, the SATWE software is used to calculate and analyze the elastic stage of shear wall, then the elastoplastic deformation of the structure under rare earthquake is calculated and analyzed by PUSH software combined with capability spectrum method, and the performance curve of the structure is obtained. The interstory displacement angle curve and the distribution of the plastic hinge of the performance point. When the elastic-plastic analysis of the structure meets the requirement of the performance point, the interstory displacement angle meets the specified limit value, and the structure has good energy dissipation capacity.
【学位授予单位】：河北工程大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU352.11
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