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Prefabricated installation construction method for bridge deck slab of transition section of steel plate composite beam bridge

A construction method and prefabricated installation technology, applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of difficult construction quality assurance, slow construction progress, etc., to improve overall stability and installation efficiency, improve installation efficiency, The effect of reducing project cost

Active Publication Date: 2022-01-14
ANHUI HIGHWAY BRIDGE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the bridge field, the rapid bridge construction technology based on prefabricated assembly technology can significantly improve the construction quality, prominent environmental protection problems, and slow construction progress faced in the construction process of existing small and medium-span bridges.

Method used

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  • Prefabricated installation construction method for bridge deck slab of transition section of steel plate composite beam bridge
  • Prefabricated installation construction method for bridge deck slab of transition section of steel plate composite beam bridge
  • Prefabricated installation construction method for bridge deck slab of transition section of steel plate composite beam bridge

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] see Figure 1-10 , the present invention provides a technical solution: a prefabricated and installed construction method for the bridge deck of a steel plate composite girder bridge with gradual transition, which is characterized in that it mainly includes the following aspects:

[0098] 1. Technological process and key points of operation

[0099] (1) Process flow

[0100] It mainly includes the following steps:

[0101] S1: construction preparation;

[0102] S2: Template cleaning and installation;

[0103] S3: steel bar and corrugated pipe installation;

[0104] S4: concrete pouring;

[0105] S5: tensioning and grouting;

[0106] S6: lifting the bridge deck and transporting it to the storage site;

[0107] (2) Bridge deck prefabrication

[0108] mainly includes:

[0109] ① Formwork production and installation

[0110] Its specific construction process is as follows:

[0111] A. The bottom mold of the bridge deck formwork is installed on the prefabricated s...

Embodiment 2

[0178] The bridge deck of this project is customized according to the bridge deck of each gradual section, and 40 sets of templates need to be purchased according to the bridge decks of different sections. The specific combination of the templates is:

[0179] Type B: 10 sets of B1 customized formwork with L×B=(15.75m~17.25m)×3m; 4 sets of B2 customized formwork with L×B=(11.25m~15.75m)×3m; L×B=(9.75 m~11.25m)×3m B3 custom formwork 4 sets;

[0180] Type C: 4 sets of C1 custom formwork with L×B=(15.75m~17.25m)×2.5m; 4 sets of C2 custom formwork with L×B=(11.25m~15.75m); L×B=(9.75m~ 2 sets of C3 custom templates (11.25m)×2.5m;

[0181] Among them, the average single set of A-type customized formwork is 10.7t, the average single set of B-type customized formwork is 10.4t, and the average single set of C-type customized formwork is 10t. The cumulative total weight G=10.7*12+10.4*18+10*10=415.6t, According to the purchase contract price with the formwork manufacturer is 6,700 yua...

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Abstract

The invention discloses a prefabricated installation construction method for a bridge deck slab of a transition section of a steel plate composite beam bridge, and aims to improve prefabrication and installation of the bridge deck slab at the transition section of the steel plate composite girder bridge, reduce the manufacturing cost of a template and reduce the problems of installation conflicts and the like. The method is mainly characterized by two aspects: firstly, because the types of transition section bridge decks slab are many, multiple types of steel molds need to be shaped, the manufacturing cost of the mold plates is increased, and in order to reduce the cost, the customized number of the mold plates is reasonably solved by optimizing the mold plates and changing the positions of the adjusting blocks and the detachable bolting mode of the side mold bodies; and secondly, transverse steel bar positioning comb plates are bolted to the bridge deck slab bottom die, the position precision of transverse steel bars is improved, collision of wet joint steel bars is reduced, and therefore the problem of difficulty in bridge deck slab installation is solved.

Description

technical field [0001] The invention relates to the technical field of bridge engineering construction, in particular to a prefabricated and installed construction method for a bridge deck of a steel plate composite girder bridge with a gradient section. Background technique [0002] With the development of society and economy, construction technology based on standardization, assembly and informationization has become the first choice for people in the construction of civil buildings and transportation facilities. For the bridge field, the rapid bridge construction technology based on prefabricated assembly technology can significantly improve the problems of difficult construction quality assurance, prominent environmental protection problems, and slow construction progress faced in the construction process of existing small and medium-span bridges. Based on this, this paper integrates the small and medium-span steel plate composite girder bridge with bridge rapid construc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00Y02A30/60
Inventor 张林王生涛王昊杨庆宋桢
Owner ANHUI HIGHWAY BRIDGE ENG CO LTD