An operating platform for construction of concrete beams above the track area and its erection method

Abstract

The invention discloses an operating platform for concrete beam construction above a rail travelling area. The operating platform comprises two hoop type corbel brackets fixedly sleeving the top endsof two supporting columns correspondingly, two I-shaped steel beams erected on the two hoop type corbel brackets and located on the two sides of the two supporting columns correspondingly, a pluralityof prewelding steel bars arranged at the bottoms of the I-shaped steel beams and inclined outwards, and a construction platform body erected on the two I-shaped steel beams; the construction platformbody comprises a left fastening platform and a right fastening platform which are correspondingly erected on the two I-shaped steel beams; each of the left fastening platform and the right fasteningplatform comprises a plurality of transverse steel columns arranged horizontally, and a plurality of inclined strut steel pipes fixed to the lower parts of the transverse steel columns and inclined inwards; the ends of the inner sides of the two transverse steel columns which are located on the left fastening platform and the right fastening platform correspondingly and are arranged in a left andright corresponding manner are fixedly connected through connecting fasteners; and the upper ends of the prewelding steel bars are inserted into the corresponding inclined strut steel pipes above theprewelding steel bars to be fixed. The operating platform has the advantage that a headroom is reserved below so as to meet the headroom requirement by rail construction.

Description

technical field [0001] The invention relates to a related technical field related to cross construction of track crossing structures at a construction site, in particular to an operating platform for construction of concrete beams above a track area and a method for erecting the same. Background technique [0002] The elevated U-shaped beam of the subway track passes through the main structure, and the four-story structure is located directly above the track, so the bent frame cannot be erected. In addition, during the construction of the superstructure beams in the track area, it is necessary to ensure the clearance requirements of the subway track operation without affecting its track construction and power-on operation and maintenance, and to ensure the construction space of its own superstructure. It is necessary to build a reasonable construction operation platform. [0003] In the actual construction process, the current construction method cannot meet the requirements...

AI Technical Summary

Problems solved by technology

[0003] In the actual construction process, the current construction method cannot meet the requirements of construction safety, quality, progress and economic rationality at the same time, and has the following shortcomings:

[0004] First, the floor-type construction operation platform is adopted, and the operation platform frame needs to be directly erected on the track, which will lead to the failure of construction in the track area, and will easily cause damage to the existing track, and cannot effectively protect the subway track, and the floor-type construction operation It is difficult to set up the platform on site, and it takes a long time to set up and dismantle the frame, which is not good for the control of the construction progress.

[0005] Second, for the traditional cantilevered construction operation platform, the applicability and pertinence of the actual construction site of this project are not strong, and the removal process of the traditional cantilevered construction operation platform does not meet the construction requirements of the track-through structure

[0006] Third, if targeted methods are not adopted, there are many problems compared with traditional methods: poor stability, insufficient protective measures, high construction risk, and possible danger or quality accidents during construction

Moreover, the cost of transportation, processing and manual welding of materials required for the traditional cantilevered construction operation platform is high, and the economy is not strong

Images