Study of optimum vibration control design for joint structure system.

本文提出了锅炉、管道等复杂多支承结构抗震设计的优化方法。着重计算了结构和构件的最佳阻尼特性，在满足一定的响应量要求下，可半自动地计算出最佳刚度和阻尼值。采用伪最小二乘算法确定最优设计参数。为了验证该方法的适用性，对由非弹性“抗震拉杆”连接的组合式锅炉房结构进行了优化。其次，考虑了由半主动控制阻尼装置连接的相邻设计结构。本文将这种方法应用于锅炉及其支承结构的基本多维集中质量模型，以支承结构的层间剪力之和为目标函数，建立了一种新的阻尼器优化设计方法。结果表明，本文提出的优化方法对于相邻结构在连接处设置阻尼装置的抗震设计是有效和实用的。

Optimization technique for the purpose of aseismec desiqn of complex multiply supported structures such as boiler-structure or piping-building is proposed. Particular attention is focussed on the calculation of optimum damping characteristics of the structures and those components.Under the requirement of certain limited amount of response, optimum stiffness and damping value can be semi-automatically calculated through this method. Pseudo least square algorithm is introduced to determine the optimum design parameters. In order to demonstrate the applicability, optimization of the combined boilerplant structures connected by the inelastic "seismic ties" was realized.Secondly, adjacently desiqned structures connected by semiactive controlled damping devices are taken into consideration. Optimum characteristics of the damper can be determined by this procedure.This method is applied to a fundamental multi-dagree of lumpedmass model of connected boiler and its supporting structure.As an objective function, a total of the story shear force of the supporting structure was selected. As the result of this work, the proposed optimization has been proved to be effective and practical for the aseismic design of the adjacent structures having damping devices at the connecting joints.