Construction process of bridge downward turning method swivel bearing system

A construction technology and swivel technology, which is applied in the construction technology field of the swivel load-bearing system of the down-rotation method, can solve the problems of complex technology, difficulty in guaranteeing the construction quality of caps, and many construction procedures, etc.

Pending Publication Date: 2020-09-18
CHINA RAILWAY 19TH BUREAU GRP 1ST ENG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this kind of construction technology, there are not only horizontal joints in the lower cap, but also circumferential vertical joints, and the construc

Method used

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  • Construction process of bridge downward turning method swivel bearing system
  • Construction process of bridge downward turning method swivel bearing system
  • Construction process of bridge downward turning method swivel bearing system

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Embodiment Construction

[0089] Combine below Figure 1-4 The present invention is further described;

[0090] 1. Clean the base of the platform, measure and stake out;

[0091]Clean up the base within the cap range, pour a concrete cushion, and measure the center and edge of the cap on the cushion.

[0092] 2. Binding the steel bars of the lower cap (lower turntable) and the steel bars of the traction reaction seat;

[0093] Install the reinforcement according to the requirements, install all the vertical reinforcement, only install the reinforcement of the first pouring concrete part of the horizontal reinforcement and distribution reinforcement, and install the traction reaction seat reinforcement at the same time.

[0094] 3. Install the lower cap (lower turntable) template and traction reaction seat template;

[0095] The formwork adopts bamboo glue formwork, and the formwork of the traction reaction seat and the formwork of the lower platform are installed together, and are fixed and supporte...

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Abstract

The invention relates to a construction process of a bridge swivel bearing system, in particular to a construction process of bridge downward turning method swivel bearing system and mainly solves theproblem that the existing swivel construction quality is not easy to guarantee and the like. The construction process comprises the following steps: cleaning a bearing platform base; binding lower bearing platform reinforcing steel bars, and dragging counter-force seat reinforcing steel bars; mounting a lower bearing platform template and a traction counterforce seat template; pouring lower bearing platform concrete for the first time; identifying a spherical hinge mounting reference; fixing a slideway support, a lower spherical hinge support, a slideway plate and a lower spherical hinge; mounting a lower bearing platform upper half part reinforcing steel bar and a boosting counterforce seat reinforcing steel bar; pouring lower bearing platform concrete; installing a jack boosting counterforce seat template and pouring concrete; mounting a positioning shaft; lubricating grease is filled between the upper and lower spherical hinges; installing an upper spherical hinge and performing trial rotation; sealing a gap between the upper and lower spherical hinges; mounting supporting legs, temporary supports, an upper bearing platform, a rotary table bottom die, side dies, upper bearing platform reinforcing steel bars and anchoring rotary body traction bundles; pouring concrete on the upper bearing platform; swivel spherical hinge installation completion. By means of the constructionprocess, construction quality is easy to guarantee.

Description

Technical field: [0001] The invention relates to a construction technology of a bridge swivel load-bearing system, in particular to a construction technology of a bridge horizontal swivel method and a downward swivel load-bearing system. Background technique: [0002] At present, with the vigorous construction of national infrastructure, the construction of high-speed railways and expressways is booming. Due to the intersection of the new road network and the original road network, when the new road network intersects with the original road network, new lines are often used. There is both a wired way. In order not to affect the operation of the existing line, the bridge construction at the intersection of the new line and the existing line mostly adopts the mobile hanging cantilever pouring or the swivel construction method. The swivel construction method includes horizontal rotation method and vertical rotation method according to the construction conditions and site enviro...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D21/08
CPCE01D21/00E01D21/08
Inventor 张兴春周卫霞许爱军杨玉林王权于洋
Owner CHINA RAILWAY 19TH BUREAU GRP 1ST ENG
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