基于性能剪力墻結構抗震評估與應用
發(fā)布時間：2018-12-23 20:21
【摘要】：當結構的變形耗能能力值與其需求值不一致時,建筑結構會發(fā)生倒塌�；谛阅艿目拐鹪O計(簡稱PBSD)理論能夠在結構構件變形的基礎上定量地分析其變形能力。同時,基于性能的抗震設計能綜合考慮生命安全和財產(chǎn)損失的要求,將“小震不壞,中震可修,大震不倒”的三級設防水準進行細化和具體化,是當前建筑結構抗震設計的發(fā)展趨勢。 本文以剪力墻結構性能化設計為研究對象,首先介紹了基于性能抗震設計方法的發(fā)展狀況,討論了劃分結構性能目標、性能水平的原則,介紹了基于性能抗震設計的理論和設計方法,研究了剪力墻結構的性能指標,總結了性能化設計方法的優(yōu)越性。同時探討了靜力彈塑性分析方法的基本原理、優(yōu)點及用途,介紹了靜力彈塑性分析的實施步驟,闡述了能力譜法、等效位移系數(shù)法等幾種基于性能的彈塑性分析方法。 采用有限元分析軟件PKPM對一實際剪力墻結構工程進行了分析。該結構先采用SATWE軟件進行剪力墻彈性階段的計算分析,再用PUSH軟件結合能力譜法對該結構在罕遇地震作用下的彈塑性變形進行計算分析,得到結構的性能曲線、影響結構性能的層間位移角曲線及性能點塑性鉸的分布情況。當結構的彈塑性分析推覆達到性能點要求時,層間位移角滿足規(guī)定的限值要求,結構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.
【學位授予單位】：河北工程大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU352.11
本文編號：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.
【學位授予單位】：河北工程大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU352.11
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