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中文摘要：
提出一种位移型消能器优化布置的新型数学模型,考虑了地震作用下三种不同的结构控制指标。首先,通过试算给定新型优化模型的五种加权系数组合;然后,在阻尼器数量一定的前提下,利用遗传算法对不同形式的结构在四类场地条件地震动作用下的阻尼器进行优化布置研究;最后,按照基于新模型中不同系数组合情况获得的阻尼器优化结果,进行三种有控结构在不同类型场地条件下的时程反应分析,得到目标函数中加权系数最佳取值组合,体现综合控制效果上的最优。数值算例验证了新模型的有效性,给出可以指导消能器优化布置方面的经验性结论。
英文摘要：
This paper establishes a new mathematic model of placement optimization for displacement-based energy dissipative devices subjected to earthquake. Three response control indices are considered in this model. Firstly, five combination modes of these indices are presented. Secondly, with the number of dampers fixed, this paper deals with the optimal placement of these dampers for several building structures with different number of stories. In the analysis, ground motions characteristics at four types of sites are considered and genetic algorithms are used. Finally, step-by-step time history analyses are carried out to achieve the optimal combination of coefficients. Some examples are illustrated to verify the effectiveness and feasibility of the new mathematic model for structural control.
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