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为了对高层钢筋混凝土框架-核心筒结构的抗震安全性能做出评价,在太平洋地震工程研究中心(PEER)基于性能抗震设计方法的基础上,采用我国地震危险性分析的研究成果,利用三维非线性分析程序CANNY建立地震反应分析模型,确定地震波样本选择方法,引入相对谱值调整系数,对结构的安全性能进行预测,由此给出了适合于我国规范的结构抗震安全评价方法。利用此方法对一钢筋混凝土框架-核心筒结构进行了分析,对算例的抗震安全性能指标和位移特性做出预测,分析结果表明,此方法可行,可以用于单体结构的抗震安全评价中,当进行某类结构的抗震安全评价时尚需考虑分析模型和结构设计的不确定性。
In order to evaluate the seismic safety performance of high-rise RC frame-core structure, based on the performance-based seismic design method of PEER, the research results of seismic hazard analysis in China are used. Based on the three-dimensional nonlinearity The analysis program CANNY establishes the seismic response analysis model, determines the method of seismic wave sample selection, introduces the relative spectrum adjustment coefficient, and predicts the safety performance of the structure. Thus, the seismic safety evaluation method for the structure of our country is given. This method is used to analyze the structure of a reinforced concrete frame-core tube and predict the seismic safety performance and displacement characteristics of the example. The analysis results show that this method is feasible and can be applied to the seismic safety evaluation of single structures , When carrying on the seismic safety evaluation of a certain kind of structure, it is necessary to consider the uncertainty of the analysis model and structural design.