Experimental study on the vibration control of a steel-concrete composite beam based on PTMD device
YANG Yang1，LI Dean2,3，SUN Xiaotong2，JIN Dashuai2，WANG Zuocai2,4，YUAN Ziqing2
1.Anhui Transportation Holding Group Co., Ltd., Hefei 230088, China;
2.Hefei University of Technology, Hefei 230009, China;
3.Anhui Engineering Laboratory of Infrastructural Safety Inspection and Monitoring, Hefei 230009, China;
4.Anhui Engineering Technology Research Center for Civil Engineering Disaster Prevention and Mitigation, Hefei 230009, China
摘要针对钢-混组合梁桥的行车振动问题，设计了一种碰撞调谐质量阻尼器（pounding tuned mass dampers，PTMD）装置，进行了基于PTMD的钢-混组合梁减振效应试验研究和数值分析研究。设计并制作了钢-混组合梁试验模型和PTMD装置，研究了PTMD装置的减振效果并进行PTMD装置的参数讨论。结果表明，该PTMD装置对钢-混组合梁的振动有明显的抑制效果，在振动响应较大时能够取得更好的减振效果，其最佳质量比为2%，最佳碰撞间隙为4mm，在试验梁上同时安装3个PTMD更为合理。以某高速公路线路上的双主梁钢-混组合梁桥为研究背景，建立了车-桥-PTMD耦合系统模型，计算并对比双主梁钢-混组合梁桥在移动车辆荷载作用下无减振装置和应用PTMD装置下的动力响应，验证了PTMD装置在实际应用中的减振效果。
关键词：碰撞调谐质量阻尼器；钢-混组合梁；振动控制；试验模型；减振效果
Abstract：Aiming at the driving vibration of steel-concrete composite girder bridges, a pounding tuned mass damper (PTMD) device is designed, and the experimental study on vibration reduction effect of a steel-concrete composite beam based on PTMD is carried out. The experimental model of a steel-concrete composite beam and PTMD device are designed and made. The damping effect of PTMD device is studied and the parameters of PTMD device are also discussed. The results show that the PTMD device can obviously restrain the vibration of the steel-concrete composite beam, and a better damping effect can be obtained when the vibration response is larger. The optimum mass ratio is 2%, and the optimum collision clearance is 4mm. It is more reasonable to install three PTMD on the experimental beam at the same time.
Key words: pounding tuned mass damper; steel-concrete composite girder; vibration control; experimental model; damping effect
杨洋1，李德安2,3，孙晓彤2，金大帅2，王佐才2,4，袁子青2. 基于PTMD的钢-混组合梁减振效应试验研究[J]. 振动与冲击, 2022, 41(22): 121-129.
YANG Yang1，LI Dean2,3，SUN Xiaotong2，JIN Dashuai2，WANG Zuocai2,4，YUAN Ziqing2. Experimental study on the vibration control of a steel-concrete composite beam based on PTMD device. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(22): 121-129.
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