建筑结构振动优化混合控制

本文采用混合控制方法对滞回非线性建筑结构的抗震控制进行研究,给出优化控制 算法,并对其充要条件进行论证。其中,被动控制采用基底橡胶支撑,主动控制采用主动质 量阻尼器（ＡＴＭＤ）,结构非线性恢复力采用Ｗｅｎ模型形式。算例计算结果表明,建筑结构的 混合控制方法的效果明显优于被动控制方法。另外,文中所用控制策略同样也适合于其它组 成形式的混合控制,如主动作动器和摩擦型基底隔离组成的混合控制等。

VIBRATIONAL OPTIMAL HYBRID CONTROL FOR STRUCTURAL BUILDINGS

The anti-seismic control for nonlinear hysteretic structural buildings is investigated by means of hybrid control method, and an optimal control algorithm is presented. Sufficient condition for the optimal solution is examined also. In hybrid control,rubber-bearing isolation system is used as passive control, active tuned mass damper(ATMD) is used as active control,and the Wen model is used to describe the nonlinear behavior of restoring force in the considered structural building. Simulation results indicate that the hybrid control for structural buildings is superior to the passive control. In addition, the proposed hybrid control strategy is applicable to other type of hybrid control, such as the combination of active actuator and friction-type base isolation.