城市轨道交通高架车站结构防撞设计探讨

据相关研究显示,国内现行规范所规定的汽车撞击力往往小于实测值,为保证轨道交通车站的结构安全,探索易于实际工程采用的等效汽车撞击力计算方法是十分必要的。在参考相关文献的基础上,借鉴《铁路桥涵基本设计规范(TB10002.1—2005)》中的船只撞击理论模型,根据能量守恒定律,得出相对保守的等效车辆撞击荷载计算方法。经与其他文献记载的实测资料对比,该计算方法所得出的计算结果与工程实测值比较吻合,具备一定的工程价值,在轨道交通车站防撞计算中,可以按此公式进行结构安全校核。

Anti-collision Design of Urban Rail Transit Elevated Station

According to related researches,the collision forces of the vehicle colliding with railway elevated station pier calculated on the basis of domestic current regulations are usually less than the measured values. To ensure the safety of the station structures,it is necessary to find out a practical method to calculate collision forces. In this paper,the conservation of energy and the theory model of ship impact are used to establish a relatively conservative method for calculating the equivalent vehicle impact loads. The results of the new theory are in agreement with the measured values recorded in other documents. This method is applicable to verify the safety of structures in the calculation of anti-collision of rail transit stations.