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为了研究铅挤压阻尼器的滞回性能及其在高架桥减震控制中的应用,对不同轴凸高度和长度的铅挤压阻尼器进行了试验,并对其应用于高架桥减震控制的可行性及设置方式进行了详细的数值模拟分析。结果表明,挤压轴轴凸的长度和高度对于铅挤压阻尼器的出力有一定影响,随着轴凸的长度和高度增大阻尼器出力也相应地增加;铅挤压阻尼器应用于高架桥减震控制需要兼顾考虑车辆制动力、温度效应及伸缩缝宽度设置的影响;提出的3种将铅挤压阻尼器应用于高架桥减震控制的方案均具有良好的减震效果而不影响结构的静力性能。
In order to study the hysteretic behavior of lead squeeze damper and its application in the control of viaduct damping, the lead squeeze damper with different height and length of shaft was tested and applied to the damping control of viaduct Feasibility and set up a detailed numerical simulation analysis. The results show that the length and height of the extruded shaft shank have an impact on the output of the lead squeeze damper, and the output of the damper increases correspondingly with the length and height of the shaft bulge. The lead squeeze damper is applied to the viaduct The damping control needs to consider both the braking force of the vehicle, the temperature effect and the setting of the width of the expansion joint. The three proposed schemes of applying the lead squeeze damper to the damping control of the viaduct all have good damping effect without affecting the structure Static performance.