大跨楼板结构的车致竖向振动控制

Vehicles induced vertical vibration control for a long-span structure

为解决地下停车场内车辆通过减速带致使上部楼层竖向振动不满足舒适度要求的问题,提出一种用于楼板结构的车致竖向振动控制的减振装置。基于被控结构-减振带-车辆的一体化有限元模型,以楼板结构竖向振动加速度幅值及车辆荷载幅值为指标,对减振带进行参数优化分析,并通过实地实测验证了所选参数的合理性与减振带的有效性。

To solve the problem that structural vibration acceleration induced by vehicles in vertical direction was too large to meet comfort requirements in related codes, a new device named “vibration control hump” was proposed to replace the conventional speed control hump. Parameters of the vibration control hump were analyzed based on a structure-vibration control hump-vehicle model, taking amplitudes of the structural vibration acceleration in vertical direction and vehicle load as indexes. The measured results showed that the vibration control hump can effectively reduce the vertical vibration of the upper structure induced by vehicle load and the structural vibration acceleration can meet the relevant specified comfort requirements. © 2016, Editorial Office of Journal of Vibration and Shock. All right reserved.