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首页> 外文期刊>Earthquake Engineering & Structural Dynamics >Simultaneous topology and sizing optimization of viscous dampers in seismic retrofitting of 3D irregular frame structures
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Simultaneous topology and sizing optimization of viscous dampers in seismic retrofitting of 3D irregular frame structures

机译：3D不规则框架结构抗震改造中粘滞阻尼器的同时拓扑结构和尺寸优化

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摘要

A new methodology for performance-based optimal seismic retrofitting using a limited number of size groups of viscous dampers is presented. The damping coefficient of each size group of dampers is taken as a continuous variable and is determined by the optimization algorithm. Furthermore, for each potential location, a damper of a single size group is optimally assigned, if any. Hence, the formulation presents a large step forward towards practical optimal design of dampers. The key for achieving an efficient optimization scheme is the incorporation of material interpolation techniques that were successfully applied in other structural optimization problems of discrete nature. This results in a very effective optimization methodology that is expected to be very efficient for large-scale structures. The proposed approach is demonstrated on several example problems of 3D irregular frame structures.
机译：提出了一种新的方法，用于使用有限数量的粘性阻尼器进行性能优化的抗震改造。每个阻尼器尺寸组的阻尼系数被视为连续变量，并由优化算法确定。此外，对于每个潜在的位置，如果有的话，单个尺寸的阻尼器被最佳地分配。因此，该配方为阻尼器的实用优化设计迈出了一大步。实现有效优化方案的关键是结合材料插值技术，该技术已成功应用于离散性质的其他结构优化问题。这导致了一种非常有效的优化方法，该方法对于大型结构有望是非常有效的。在3D不规则框架结构的几个示例问题上证明了所提出的方法。

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