地铁车站盖挖法竖向支承构件设计方法研究

Study on Design Method of Vertical Components in Covered Excavation of Metro Station

在地铁车站盖挖法施工中,临时路面体系和中间立柱是结构竖向承载的主要构件。在我国,临时路面体系应用较少,因此没有形成相应的设计规范;对于中间立柱来说,若采用规范上的方法进行设计,计算起来将比较繁琐。文中提出的一套临时路面体系的设计方法,以及立柱设计的简化计算方法,对今后地铁车站盖挖法的设计工作有一定的参考价值。

During the covered excavation of metro station, the temporary pavement system and the columns are the main components for bearing the vertical load. In China, the application of the temporary pavement system is rare, so that no corresponding design code is formed. As for the column, if it is designed according to the code, it will be very complicated to calculate. A reasonable design method of the temporary pavement system is suggested in this paper, and a simplified calculation method is put forward. The conclusions are helpful for the design work of the covered construction method of the metro station in the future.