高速列车引起的武汉站楼板振动舒适度研究

随着人们生活水平和质量的提高,建筑物舒适度方面的要求引起了人们越来越多的关注。针对武广客运专线武汉站"桥建合一"的特殊结构型式,将结构划分为列车-桥梁子结构和桥梁-上部大跨钢结构子结构,由前者计算桥梁支座处的反力,并以此为反力作为后者的输入荷载,计算上部大跨钢结构的动力响应,然后基于目前常用的国际标准,将武汉站不同标高的楼层分为不同的子区域,分别评价各个子区域的舒适度,以此评价武汉站楼板在高速列车荷载下的舒适度。评价结果表明:武汉站各标高的楼板均满足舒适度的要求。所采取的舒适度评价方法可为国内今后类似结构的舒适度设计提供依据、为舒适度评价提供参考。

Study on floor vibration comfort of wuhan railway station under the running condition of high speed train

Much attention has been paid on the demand on building comfort with the development of people’s life quality. The special structure form, which called unification of station and bridge, is divided into two substructures: train-bridge and bridge-large span steel structure substructure. The reactions are obtained by the train-bridge substructure and dynamic responses of large span steel structure are calculated based on the reactions. The vibration comfort of different level floors is evaluated based on International Standard, in which the different floors are divided into several sub-regions and the vibration comfort of each sub-region is evaluated individually. The results show that the floors of Wuhan railway station can satisfy the demand of comfort. The correction of evaluation results is verified by site measurement on the floor of Wuhan railway station. The evaluation method for floor vibration comfort in the paper can provide reference for similar structures in future in China.