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以广东虎门大桥为背景,在同济大学TJ-1边界层风洞中进行了被动调质阻尼器对颤振控制的研究.试验中考虑了结构阻尼特性、主梁断面外形、调质阻尼器参数(质量惯矩比、频率比及阻尼比)等对控制效率的影响,得出了一些新的结论:TMD对低阻尼桥的控制效果优于高阻尼桥;对较"钝"立梁断面的桥的控制效果优于较"流线"主梁断面的桥;TMD的频率及阻尼设置对控制效果均有影响,前者大于后者.
Taking the Guangdong Humen Bridge as a background, the research on the flutter control of the passive quenching damper was carried out in the TJ-1 boundary layer wind tunnel of Tongji University. In the experiment, the influence of the structural damping characteristics, the profile of the main girder, the parameters of the quenched and tempered damper (mass moment of inertia ratio, frequency ratio and damping ratio) on the control efficiency are considered. Some new conclusions are drawn: The control effect is better than the high damping bridge; the control effect on the bridge with “blunt” vertical beam section is better than the bridge with “streamline” main beam section; the frequency and damping setting of the TMD have an impact on the control effect, the latter.