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首页> 外文期刊>Bulletin of earthquake engineering >Self-adaptive approach for optimisation of passive control systems for seismic resistant buildings
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Self-adaptive approach for optimisation of passive control systems for seismic resistant buildings

机译：用于抗震建筑无源控制系统优化的自适应方法

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The concept of passive control of the seismic response of structures was introduced to improve the performance of structures by increasing their energy dissipation and reduce or eliminate damage in the structural elements. The key task in the design of passive systems is to determine the forces in the control devices (yield/slip or post-tensioning) at each floor, that will result in best performance (e.g. minimum inter-storey drift). This can be achieved by large parametric studies in which both the maximum control force (e.g. at ground level) and the distribution of forces along the height of the structure are varied. Alternatively, optimum forces in the devices can be achieved by semi-active control, where the structure self-adapts to the earthquake. Both solutions are expensive: the first requires hundreds of non-linear response simulations in the design stage; the second needs a system of sensors, controllers and electromechanical devices. Presented here is a new Self Adaptive Optimisation Approach (SAOA) in which the self-optimisation of a semi-active system is used in the design stage and the resulting distribution of control forces is adopted as a passive system. The new approach was evaluated through comparing the simulated dynamic responses of two relatively simple benchmark structures (braced and post-tensioned) with three sets of control forces: (1) passive system with forces obtained in parametric study, (2) semi-active system with self-adapting control forces, and (3) passive system with SAOA-optimized forces. The results show good performance of the SAOA systems, indicating that SAOA offers a simple and effective solution that can replace the existing optimisation approaches for the design of passively controlled earthquake resistant structures. This study presents a novel idea of using the semi-active control as a tool for optimising a passive control system. The passive control systems can be further improved by a larger study in which the semi-activ
机译：引入了结构地震响应的被动控制的概念，通过提高它们的能量耗散和减少或消除结构元素的损伤来改善结构的性能。无源系统设计中的关键任务是在每个楼层确定控制装置（产量/滑动或后张力）中的力，这将导致最佳性能（例如，最小楼间漂移）。这可以通过大的参数研究来实现，其中最大控制力（例如在地面）和沿着结构高度的力的分布。或者，可以通过半主动控制来实现装置中的最佳力，其中结构自适应到地震。这两种解决方案都很昂贵：第一个需要设计阶段数百个非线性响应模拟;第二种需要传感器，控制器和机电装置的系统。这里介绍的是一种新的自适应优化方法（SaOA），其中在设计阶段使用半活性系统的自我优化，并采用所得到的控制力分布作为被动系统。通过比较两组控制力的两个相对简单的基准结构（支撑和后张紧）的模拟动态响应来评估新方法：（1）具有在参数研究中获得的力的被动系统，（2）半主动系统具有自适应控制力，（3）具有Saoa优化力的被动系统。结果表明Saoa系统的良好表明，SAOA提供了一种简单有效的解决方案，可以更换现有的优化方法来设计被动控制的地震抗性结构。本研究提出了使用半主动控制作为优化被动控制系统的工具的新颖思想。通过较大的研究可以进一步改善被动控制系统，其中半Activ

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