| 高架桥结构振动主动控制算法及其MATLAB仿真实现 |
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| 作者单位： | 北京建筑工程学院 北京100044(吴春洋，韩淼)，中国建筑设计研究院 北京100044(霍文营) |
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| 摘 要： | 探讨了高架桥结构地震反应LQR(Linear Quadratic Regulator)主动控制算法,并利用MATLAB语言编制的程序对高架桥进行了数值仿真计算。提出了在应用该算法进行主动控制MATLAB仿真分析时的实现方法对同一个系统,在EI-Centro、Taft、Tianjin 3种地震激励下进行数值计算。数值结果表明,主动控制技术能够有效地减小高架桥的地震反应。
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| 关 键 词： | 高架桥 主动控制算法 MATLAB仿真 地震响应 |
SEQUENTIAL OPTIMAL CONTROL ALGORITHM FOR ELEVATED HIGHWAY BRIDGES VIBRATION CONTROL AND ITS REALIZATION |
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| Authors: | Wu Chunyang Han Miao |
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| Affiliation: | Wu Chunyang Han Miao(Beijing Institute of Civil Engineering and Architecture Beijing 100044) Huo Wenying(China Architecture Design and Research Group Beijing 100044) |
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| Abstract: | The LQR active control algorithms of seismic response for the elevated highway bridge and the non-linear calculation model of the highway bridge that rigidity degradation is considered are discussed.The numerical simulative calculation is carried out by Matlab program.The method for realizing Simulink simulation analysis of active control by using this algorithm is proposed and compared also to each other.The control effectiveness of different control strategies is compared subjected to three kinds of earthquake excitation about different control goals.The results of calculation show that it is effective to reduce the seismic response of the elevated highway bridge structures by active control technique under the earthquake. |
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| Keywords: | elevated highway bridge active control algorithm Matlab simulation earthquake response |
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