A construction method for widening and reconstructing the structure system of the existing station platform

A technology for reconstructing structures and existing stations, applied in truss structures, building structures, joists, etc., can solve the problems of scaffold erection, limited available space for demolition, limited construction time, and power failure of tracks, etc. The effect of installing in place, ensuring the node construction period, and eliminating dimensional errors

CN106088660BActive Publication Date: 2018-11-09北京住总集团有限责任公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-11-09

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Abstract

The invention provides a construction method of a widened and improved structure system for an existing station platform, which comprises the following steps: pre-processing steel members of a widened steel structure of a station; reinforcing frame columns of an original frame structure; reinforcing bent steel columns; mounting middle beams; mounting side beams; and mounting a structure widened platform. According to the invention, the steel members of the widened and improved part of the station are divided into middle beams, cantilever side beams and a steel structure widened platform to be respectively constructed, so that the processes are reasonable, the construction time is accurate, and the construction period is ensured; and the early subway station which can not meet the existing passenger flow is widened and improved, thereby summarizing construction experience for a new trend of the future subway industry, filling up the blank of the track traffic industry and providing reference for future improved construction.
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Description

technical field

[0001] The invention relates to the field of steel structure engineering construction, in particular to a construction method for widening and reconstructing a structural system of an existing station platform. Background technique

[0002] With the development of the urban rail transit system, the subway sometimes lays some lines on the ground due to the factors of the construction environment, and many subway stations were established earlier, and the scale of the existing platforms can no longer meet the existing passenger flow. The line inevitably needs to be transferred with the original line. Therefore, when the transfer conditions are not reserved for the existing platform, in order to realize the dual needs of transfer and passenger flow, it is necessary to increase the passenger capacity of the existing platform itself. In addition, the existing platform needs to be widened and reconstructed. Therefore, the transformation of existing stations will b...

Examples

Embodiment Construction

[0072] The existing subway line A is a diameter line running through the urban area, which is a kind of skeleton line. With the rise of large communities next to the subway, the capacity burden of Line A is getting bigger and bigger. A subway line B is a rail transit line connecting the central city to the new city. Two important lines need to transfer at a certain station on line A to facilitate the travel of citizens in large communities. A certain station is located above the ground, and the traffic flow on both sides of the station is relatively large. At the same time, the passenger flow of Line A is huge, and the full load rate of the platform has reached 120%. Existing platforms on the line will be widened.

[0073] For this example see Figure 1-2 As shown, this existing station platform widening reconstruction structure system includes the existing station part, and the existing station part includes the original frame structure 1, the train track structure 2 jointl...