Improved Decentralized Method for Control of Building Structures under Seismic Excitation
Improved Decentralized Method for Control of Building Structures under Seismic Excitation
复制标题
地震激励下建筑结构控制的改进分散方法
DOI：
10.1061/(asce)em.1943-7889.0000104
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Henry T. Y. Yang
中科院分区：
文献类型：
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作者：
T. Ma;J. Johansen;N. Xu;Henry T. Y. Yang
提出了一种具有鲁棒性和设计灵活性的建筑结构分散控制方法。在以前的研究中，一个控制方案，开发了多层建筑模型，使用非线性，分散控制理论。这种控制方法在本研究中得到了改进，需要的建筑物的材料特性和几何参数的信息更少，控制设计参数的选择更灵活。研究了所提出的控制系统的非线性行为，并从数学上证明了其稳定性。为了评估所提出的方法的有效性和鲁棒性，三个说明性的结构模型，即，研究了8层弹性剪切梁模型、2层非线性弹性剪切梁模型和20层弹性基准模型。1940年的埃尔森特罗和1995年的科比地震被用于这些例子。当前控制设计的性能，如应用于这些例子，已被证明是更有效地减少结构响应和提高鲁棒性。
A decentralized control method with improved robustness and design flexibility is proposed for reducing vibrations of seismically excited building structures. In a previous study, a control scheme was developed for multistory building models using nonlinear, decentralized control theory. This control method has now been improved in this study in that less information about material properties and geometrical parameters of the building is needed and the selection of control design parameters is more flexible. The nonlinear behavior of the proposed control system is studied and its stability property is proven mathematically. To evaluate the effectiveness and robustness of the proposed method, three illustrative structural models, i.e., an eight-story elastic shear beam model, a two-story nonlinear elastic shear beam model, and a 20-story elastic benchmark model are studied. The 1940 El Centro and the 1995 Kobe earthquakes are used in these examples. The performance of the current control design, as applied to these examples, has shown to be more effective in reducing structural responses and improving robustness.