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基于结构物理特性的不规则建筑抗震控制的传感器布置

DOI: 10.13197/j.eeev.2014.04.182.wangym.024, PP. 182-187

Keywords: 不规则3D建筑,能控性和能观性,传感器布置,模态变换,结构控制

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Abstract:

结构控制在土木结构抗震中的应用已经在各种文献中有广泛的研究。本文介绍一种对三维不规则隔振建筑进行结构控制的传感器布置法。该法充分利用了结构的各种物理特性,如通过系数矩阵建立不同位置输入输出的结构状态空间方程;通过模态坐标变换,把方程改写成一种模态坐标表示的、物理意义更清晰的形式,使控制力更小更有效;利用能控性和能观性性质,构造了一个位置指数,用以衡量传感器布置,使较少的传感器更有效地捕获并反馈结构的响应信号,等。地震波输入和结构的响应验证了方法的有效性。

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