【摘要】 为求解黏滞阻尼器的非线性动力方程,以黏滞阻尼器的单自由度消能结构体系为研究对象,在Newmark法基础上,结合Newton-Raphson算法,提出了地震响应的计算方法.计算结果表明按等效阻尼方法计算最大结构位移与试验结果对比,相对误差在90%以上;按文中算法计算最大结构位移与试验结果对比,二者的最大结构位移比较接近,相对误差大部分在5.5%以内,可以将其应用于黏滞阻尼器消能结构地震响应的计算.更多还原

【Abstract】 In order to solve the nonlinear dynamical equation of fluid viscous dampers, single degree freedom energy dissipation system with fluid viscous dampers was studied. Based on Newmark’s method, a new method for calculating earthquake responses of structures was proposed by means of Newton-Raphson algorithm. Compared with the experimental results, the relative errors of the maximum structure displacement obtained by the equivalent damper method are all beyond 90%; in contrast, the relative errors of the maximum structure displacement obtained by the method suggested in the paper are almost within 5.5%. So it can be seen that the method in the paper can be applied to the solution of earthquake responses of structures with fluid viscous dampers.更多还原