铁路斜拉桥车桥动力响应的TLD控制研究

Research on TLD Control of Bridge Vehicle Responses for Railway Cable Stayed Bridge

针对混凝土桥面板—钢桁架结合梁的特点， 建立了斜拉桥的有限元模型； 给出了考虑全部刚体位移的车辆运动方程和轮对蛇行运动方程； 提出了实测横向轮轨力的概率分布检验和随机模拟方法。假定调谐液体阻尼器ＴＬＤ液体是不可压缩的和无旋的， 建立了ＴＬＤ液体的非线性基本运动方程。对芜湖长江大桥车桥动力响应的ＴＬＤ控制进行了理论计算， 结果表明： 设置ＴＬＤ后，

A finite element model of cable stayed bridge is set up in allustion to the characteristics of a combined girder with concrete plate and steel truss.All rigid body displacements are considered in the vechile moving equation and wheel hunting motion equations are established.A method of checking the probabilistic distribution and simulation of measured wheel rail latarl forces are suggested.Nonlinear motion equations of TLD liquid are established assuming the liquid is incompressible and irrotational.TLD control of bridge vechile dynamic responses of Wuhu Changjiang River Bridge is calculated on computer and the result shows that bridge vechile dynamic responses can be controlled efficiently.