الوصف

Introduction



The opening U-Beam is applied in the upper structure of U-Beams and replace the traditional structure of box girder, The underground railway is directly paved on the bottom structure of U-Beams. The webs on both sides of U-Beams can be effectively preventing noise from vehicle wheel of subway.



The top flange of U-Beam it should be at the same height as baseplate of the metro vehicles. In case of emergency, It also can be used for Emergency evacuation routes  to provide convenience for passengers. Meanwhile, because of vehicle is protected by the side web plate of U-Beam