
Recently, the track-bearing layer of the Dongda Highway Station of Section 4 of the Nanhui Branch Line of the Shanghai Municipal Railway, invested and constructed by Shanghai Shentie and undertaken by the Municipal Group of Tunnel Engineering Co., Ltd., was successfully poured, laying a solid foundation for the next stage: the erection of prestressed simply supported box girder track beams and the construction of the second-floor platform level.

Dongda Highway Station is located at the intersection of Dongda Highway and Haixi Road in Shuyuan Town, Pudong New Area, on the north side of Binhai Forest Park. It is an elevated two-level side-platform station, with the ground level serving as the concourse level and the second level as the platform level. The station adopts a four-column, three-span single-story frame structure support system. The upper part of the platform level uses a steel structure roof, the central track beams use prestressed simply supported box girders, and the lower pile caps use reinforced concrete independent pile caps, with a total of 280 bored cast-in-place pile foundations installed beneath the pile caps. The station is approximately 220 meters long, 38.5 meters wide, and 23.35 meters high, with a total main structure building area of approximately 18,692 square meters.

The track-bearing layer of the station has a total of 12 transverse frame beams of 2.2 m × 2.2 m specifications. A single transverse frame beam contains a large quantity of rebar with large diameters. The project team established a centralized rebar processing plant and adopted automated rebar processing equipment to improve processing precision, effectively control errors, and significantly increase rebar production capacity and quality.

The track-bearing layer of the station is approximately 13.6 meters high, and the scaffolding is erected to a height of approximately 8 meters. To prevent construction risks and ensure construction safety, the project team organized multiple demonstrations with technical personnel and industry experts, and adopted a socket-type disk-lock full hall scaffolding system, further ensuring the stability of the structure.

The track-bearing layer of the station has a building area of approximately 8,000 square meters, with a total of 60 cast-in-place columns of 1.6 m × 1.6 m specifications arranged below, divided into 6 construction zones. The project team carried out column construction and scaffolding erection simultaneously. By reasonably arranging the spacing of formwork supports and fully utilizing the roof support as the working platform for column construction, after column construction is completed, the scaffolding can be erected upward to construct the roof without dismantling, greatly improving construction efficiency.
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