叠落式同台换乘车站模态及列车振动影响分析

摘要

采用模态分析及ISO 10137∶2007评价体系，对杭州地铁某单柱大跨上下叠落式同台换乘车站进行计算分析，得出固有频率为11.9 Hz的第4阶模态和固有频率为41.3 Hz的第20阶模态竖向参振质量较大，同时通过两种不利工况的计算对比可知，地铁列车快速通过车站站台时，其引起的车站各测点的计权加速度均方根值处于较低状态，满足车站各层舒适度要求。%Applying modal analysis and ISO 10137∶2007 evaluation system,the paper calculates and analyzes single-column large-span shifted-style cross-platform interchange of Hangzhou subway,and concludes that:the vertical vibration quality is bigger of fixed frequency 11. 9 Hz at the 4th modal phase and fixed frequency 41. 3 Hz at the 20th modal phase,through calculation and comparison of two kinds of adverse conditions,the subway train fast through the station,the station accelerated speed point lies in low statement which meets comfort demands.