Construction method for rapidly reinforcing old bridge through temporary steel bridge

By adopting the construction method of rapidly reinforcing the old bridge with steel bridges, the problem of difficult insertion and hard transportation of steel pipe piles in the reinforcement of old bridges is solved, and the rapid, safe and efficient reinforcement of the old bridges is achieved, reducing the amount of steel used and construction costs.

CN119686241AInactive Publication Date: 2025-03-25THE 5TH ENG MBEC +1
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Patent Information

Application Number
CN202411805097.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-03-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing old bridge reinforcement methods have the problems of difficult insertion and loading of steel pipe piles and difficult transportation, resulting in high construction costs and low efficiency.

Method used

The construction method of fast reinforcement of old bridges by steel bridges includes chiseling and removing old bridge guardrails, staking to determine the position of planting reinforcements, setting up pad beams and inverted U-shaped steel bars, installing Beret beams, horizontal distribution beams, limit parts, oblique braces and bridge decks, forming a lower bearing double-span Beret beam structure.

Benefits of technology

The rapid, safe and efficient reinforcement of the old bridge has been achieved, and the problems of difficult insertion and driving of steel pipe piles and difficult transportation have been solved, the amount of steel used and construction costs have been reduced, and the construction efficiency has been improved.

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Abstract

The invention relates to a construction method for rapidly reinforcing an old bridge through a temporary steel bridge. The construction method comprises the following steps that part of guardrails are chiseled away; measuring and setting out, determining a steel bar planting position, arranging a bearing beam, filling concrete in the bearing beam, and planting steel bars around the bearing beam to limit the movement of the bearing beam; the bailey beams, the transverse distribution beams, the limiting pieces, the inclined struts and the bridge deck slabs are sequentially installed; ancillary facilities and warning marks are additionally arranged on the constructed temporary steel bridge, and the all-temporary steel bridge can be put into use after construction is completed. Compared with a newly-built trestle with the same bearing capacity, the same excellent bearing capacity is shown, construction is easier, more convenient and faster, the construction period is short, materials are convenient to transport, the material recycling rate is high, compared with a traditional old bridge reinforcing method, the problems that steel pipe piles are difficult to insert, hit and transport are solved, and the construction period is shortened. The defects of large steel consumption and low construction efficiency are overcome, and it can be ensured that the reinforced temporary steel bridge meets the vehicle passing requirement and meets the requirements of design files and related technical specifications.
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