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通过对由滑动支承元件和限位消能元件所组成的隔震子系统总体性能的模拟,建立了任意平面形式的基底隔震房屋的剪切一扭转耦连计算模型,讨论了基底平行滑移(平滑)、扭转滑移(扭滑)及其复合情况等8种运动状态的转化判别条件,推导了相应的结构系统非线性动力反应方程,研制了计算机分析程序,该程序可双向输入地震波,并可按设计要求对场地土卓越周期和地震烈度进行自动调整。通过实例计算,探讨了基底隔震多层砖房的减震性能。
Through the simulation of the overall performance of the isolation sub-system composed of the sliding bearing element and the limiting energy-dissipating element, a shear-torsional coupling calculation model for the basement-isolated housing in any plane form was established, and the parallel sliding of the substrate was discussed. The conversion conditions of eight motion states (smoothing), torsional slip (torsion-slip) and their compound conditions were deduced, the nonlinear dynamic response equations of the corresponding structural systems were deduced, and a computer analysis program was developed. This program can input seismic waves in both directions. According to the design requirements, the site’s soil cycle and seismic intensity can be automatically adjusted. Through example calculations, the shock absorption performance of the base-isolated multi-story brick house was discussed.