Entirely-prefabricated rail top air flue assembly structure of subway station

Abstract

The invention discloses an entirely-prefabricated rail top air flue assembly structure of a subway station. The entirely-prefabricated rail top air flue assembly structure comprises a main body side wall, a station middle plate, an entirely-prefabricated rail top air flue, waist beams and connecting beams. The entirely-prefabricated rail top air flue adopts reinforced concrete to be entirely poured, and comprises outer side suspended beams, inner side suspended beams and a horizontal air flue plate. The outer side suspended beams, the inner side suspended beams and the horizontal air flue plate are provided with composite structures of ribbed beams and webs correspondingly. According to the entirely-prefabricated rail top air flue, connection of the entirely-prefabricated rail top air fluewith bearing components, namely, the waist beams and the connecting beams is achieved through horizontal connection of pre-buried bolt sleeves, reserved holt holes, bolts penetrating through the reserved holt holes, and nuts screwed at the ends of the bolts. Pre-buried connecting steel plates are arranged in the waist beams, the connecting beams, the outer side suspended beams and the inner sidesuspended beams. As for the entirely-prefabricated rail top air flue assembly structure, secondary approaching can be avoided, the strength of the components is high, the weight is low, the durabilityis good, and on-site hoisting operation and on-site connecting of the components are convenient.

Description

technical field [0001] The invention relates to the field of rail top air ducts of subway stations, in particular to an assembly structure of an integral prefabricated rail top air duct of a subway station. Background technique [0002] The track top air duct, that is, the top exhaust air duct of the train, undertakes the task of exhausting and supplying air for the subway. It is an important internal structural component in the ventilation system of the subway station, and is suspended at the junction of the middle plate and the structural side wall of the station. Due to the particularity of the location of the rail top air duct, it is generally not poured at the same time as the main body of the station, especially in stations where the shield tunnel construction needs to pass, the rail top air duct must be poured later. However, after the construction of the main structure of the station is completed, due to the small construction space, inconvenient operation for operat...

AI Technical Summary

Problems solved by technology

Steel bars are reserved for the left and right hanging beams, and the left and right hanging beams are bound with the steel bars inside the station mid-slab through their internal steel bars before pouring concrete. Although the wind tunnel can solve the secondary access problem of civil engineering construction to a certain extent, it still needs to pour concrete on site to realize the connection between the left and right side beams and the station mid-slab. The quality of the finished rail top air duct is not easy to control

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