Rail top air duct building structure of urban rail transit platform layer public area based on BIM

Abstract

The invention discloses a rail top air duct building structure of an urban rail transit platform layer public area based on BIM. The rail top air duct building structure comprises a rail running areaand the platform layer public area. A shielding door is arranged between the rail running area and the platform layer public area. An upper heat exhausting air duct is arranged above the rail runningarea. An overhaul area is arranged on the side, away from the shielding door, of the upper end of a hung ceiling. A rail top air duct is composed of a metro station middle plate, a left side concretecantilever beam, a right side concrete cantilever beam and an air duct bottom plate. A top box is arranged on the upper portion of the shielding door. The right side concrete cantilever beam extends to the position being flush with the lower end of the top box in the pouring process. The top box is fixed to the right side concrete cantilever beam through a connecting device. According to the railtop air duct building structure of the urban rail transit platform layer public area based on BIM, the cantilever beams of the rail top air duct are retracted by a certain distance towards the side being away from the public area, and the distance of a lengthening connecting piece is increased between the rail top air duct and the shielding door, so that a pipeline installing area at the upper endof the hung ceiling is moved by a certain distance towards the direction of the rail top air duct, accordingly the width of the pipeline overhaul area of the public area is increased, and overhaul ismore convenient.

Description

technical field [0001] The invention relates to the construction technology field of subway stations or other rail transits, in particular to a BIM-based rail top air duct building structure in the public area of ​​the urban rail transit platform floor. Background technique [0002] The screen door in the subway station separates the track area and the public area; among them, in the public area, the space between the rail top air duct and the structural longitudinal beam is generally the area where various professional pipelines are arranged, and each professional pipeline needs to be installed and arranged in In this space, at the same time, it is also necessary to reserve a certain maintenance space (not less than 400mm), and the maintenance space is used for maintenance of the pipeline area. Due to the relatively large size of the air ducts at both ends of the public area, as the humanized and technological facilities in the subway station become more and more perfect, t...

AI Technical Summary

Problems solved by technology

[0003] At present, in the building structure of subway stations, after the pipeline layout area generally occupies a certain space, the remaining maintenance space will be relatively small, usually less than 300mm, which brings a lot of inconvenience to the maintenance of current pipelines

Images