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采用时间步长法和极值Ⅲ型RV的模拟,模拟场地地震发生时间和烈度等。用简化计算方法分析了结构在服役期各次地震作用下的弹塑性反应。考虑多次地震造成的损伤积累,采用变形破坏准则,计算了结构在随机地震作用下达到破坏状态的寿命。根据模拟精度要求。确定模拟次数。经反复模拟,得出工程结构的寿命分布、均值和方差。这揭示了随机地震和结构寿命之间的关系。对工程结构在地震作用下使用寿命的预测和在役结构的风险检测以及结构抗震的研究提出了一种新的思路和研究方法。
The time step method and extreme type III RV simulation were used to simulate the time and intensity of site earthquakes. The simplified calculation method was used to analyze the elasto-plastic response of the structure under various earthquakes during the service period. Considering the damage accumulation caused by multiple earthquakes, the failure criterion of deformation was used to calculate the lifetime of the structure under the effect of random earthquakes. According to simulation accuracy requirements. Determine the number of simulations. After repeated simulation, the life distribution, average value and variance of the engineering structure were obtained. This reveals the relationship between random earthquakes and structural life. The prediction of the service life of the engineering structure under earthquake and the risk detection of the in-service structure and the research on the seismic resistance of the structure proposed a new idea and research method.