钢筋混凝土结构的抗震可靠度分析及优化-岩土工程专业论文.docxVIP

II Abstract This paper conducts research on the aseismic reliability of the reinforced concrete members and system on the basis of the Reliability Theory and Matlab and ANSYS numerical analysis. Through the comparison and analysis of the methods of calculating the aseismic reliability, it adopts the most appropriate analysis method to research the aseismic reliability and conducts the optimized analysis on the basis of the reliability. The main research content includes: It summarizes the fundamental contents of the Reliability Theory as well as compare and analyze the different common calculation methods (First-order Second- moment method, JC method, Response Surface method and Monte Carlo method). The optimal Monte Carlo method is adopted to research the aseismic reliability of the reinforced concrete members a nd system. On the basis of the optimal Monte Carlo method and in accordance with the Code of Aseismic Designing (GB50011-2010), it designs a reinforced concrete column, establishes the limit state equation according to the N - M correlation curve of the column and writes the analysis programs by means of Matlab software, thus calculating the reliability index of the eccentric loading columns under different eccentricity, analyzing the results obtained and investigating the influence of eccentricity on the aseismic reliability of the reinforced concrete eccentric compression column. Meanwhile, Matlab and Monte Carlo methods are combined to establish the limit state equation under two restricted conditions of ultimate bearing capacity and displacement as well as analyze and calculate the aseismic reliability of the same eccentric compression column under earthquake actions. Through the comparison and analysis of the two results, the safer analysis method based on displacement is finally determined. This paper researches and analyzes the rationales of PDS and OPT module of ANSYS and writes the aseismic reliability analysis program of the frame structure and th