基于PTMD的钢-混组合梁减振效应试验研究  

Experimental study on the vibration control of a steel-concrete composite beam based on PTMD device

作　　者：杨洋 李德安 孙晓彤 金大帅 王佐才[2,4] 袁子青 YANG Yang;LI Dean;SUN Xiaotong;JIN Dashuai;WANG Zuocai;YUAN Ziqing(Anhui Transportation Holding Group Co.,Ltd.,Hefei 230088,China;Hefei University of Technology,Hefei 230009,China;Anhui Engineering Laboratory of Infrastructural Safety Inspection and Monitoring,Hefei 230009,China;Anhui Engineering Technology Research Center for Civil Engineering Disaster Prevention and Mitigation,Hefei 230009,China)

机构地区：[1]安徽省交通控股集团有限公司,合肥230088 [2]合肥工业大学,合肥230009 [3]安徽省基础设施安全检测与监测工程实验室,合肥230009 [4]土木工程防灾减灾安徽省工程技术研究中心,合肥230009

出　　处：《振动与冲击》2022年第22期121-129,共9页Journal of Vibration and Shock

基　　金：国家自然科学基金优秀青年科学基金资助项目(51922036);安徽省重点研发计划资助项目(1804a0802204)。

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4 mm,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。Aiming at the vehicle driving vibration of steel-concrete composite girder bridges, a pounding tuned mass damper(PTMD) device was designed, and the experimental study on the vibration reduction effect of a steel-concrete composite beam installed with the PTMD was carried out. The experimental model of the steel-concrete composite beam and PTMD device were designed and made. The damping effect of the PTMD device was studied and the parameters of the PTMD device were also discussed. The results show that the PTMD device can obviously restrain the vibration of the steel-concrete composite beam, and better damping effect can be obtained when the vibration response is larger. The optimum mass ratio is 2%, and the optimum collision clearance is 4 mm. It is more reasonable to install three PTMDs on the experimental beam at the same time.

关 键 词：碰撞调谐质量阻尼器(PTMD) 钢-混组合梁 振动控制 试验模型 减振效果 

分 类 号：U441.3[建筑科学—桥梁与隧道工程]