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Cast-in-place construction method of cast-in-place concrete bridge

A construction method and technology for bridge construction, applied in bridges, bridge construction, bridge materials, etc., can solve problems such as long construction periods

Pending Publication Date: 2022-05-10
黑龙江省龙建路桥第五工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the existing box girder pouring construction method, in order to ensure construction safety and bridge quality, the general construction period is long, so a cast-in-place construction method that ensures the quality of the box girder and shortens the construction period is needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The present embodiment provides a kind of cast-in-place construction method of cast-in-place concrete bridge, and it comprises the following steps:

[0037] 1) Measure the bridge construction site, determine the cast-in-place construction plan according to the measurement data, and draw the construction drawings of the supports.

[0038] 2) Then carry out the foundation treatment, erect the full support, install the bottom formwork on the full support in sequence according to the bridge design drawings, and preload and adjust the full support, and then install the web and inner mold on the bottom form, and install the steel skeleton. The preloading and adjustment of the above-mentioned full hall support specifically include the following steps: select sand bags weighed according to the standard weight and load them on the bottom formwork, load the number and position of sand bags according to the bridge design self-weight, and load the sand bags according to the concrete...

Embodiment 2

[0043] The present embodiment provides a kind of cast-in-place construction method of cast-in-place concrete bridge, and it comprises the following steps:

[0044] 1) Measure the bridge construction site, determine the cast-in-place construction plan according to the measurement data, and draw the construction drawings of the supports.

[0045] 2) Then carry out the foundation treatment, erect the full support, install the bottom formwork on the full support in sequence according to the bridge design drawings, and preload and adjust the full support, and then install the web and inner mold on the bottom form, and install the steel skeleton. The preloading and adjustment of the above-mentioned full hall support specifically include the following steps: select sand bags weighed according to the standard weight and load them on the bottom formwork, load the number and position of sand bags according to the bridge design self-weight, and load the sand bags according to the concrete...

Embodiment 3

[0050] The present embodiment provides a kind of cast-in-place construction method of cast-in-place concrete bridge, and it comprises the following steps:

[0051] 1) Measure the bridge construction site, determine the cast-in-place construction plan according to the measurement data, and draw the construction drawings of the supports.

[0052] 2) Then carry out the foundation treatment, erect the full support, install the bottom formwork on the full support in sequence according to the bridge design drawings, and preload and adjust the full support, and then install the web and inner mold on the bottom form, and install the steel skeleton. The preloading and adjustment of the above-mentioned full hall support specifically include the following steps: select sand bags weighed according to the standard weight and load them on the bottom formwork, load the number and position of sand bags according to the bridge design self-weight, and load the sand bags according to the concrete...

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Abstract

The invention provides a cast-in-place construction method of a cast-in-place concrete bridge, and relates to the technical field of building construction. The cast-in-place construction method of the cast-in-place concrete bridge comprises the following steps that a full framing is erected, bottom formworks are sequentially installed on the full framing according to a bridge design drawing, the full framing is pre-pressed and adjusted, then webs and inner formworks are installed on the bottom formworks, and a steel reinforcement framework is installed; concrete pouring operation is sequentially carried out from low to high, in the pouring process, concrete pouring is carried out for the first time, a layered dislocation method is adopted, after 5-10 m of bottom formworks are poured, pouring of webs is completed in a layered mode, and after pouring of the last section of bottom formworks and webs is completed, circulating construction is carried out till concrete pouring of all structures is completed. According to the construction method, the pouring construction period of the box girder can be obviously shortened while the construction quality of the box girder is guaranteed, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a cast-in-place construction method for a cast-in-place concrete bridge. Background technique [0002] In modern buildings, especially in the construction of modern highways and railways, all large concrete bridges are usually constructed by cast-in-place construction methods. Among them, the box girder is a kind of middle beam in bridge engineering. It is hollow inside and has flanges on both sides of the upper part, which is similar to a box, hence the name. Single box, multi-box, etc. The box girder of reinforced concrete structure is divided into prefabricated box girder and cast-in-place box girder. The prefabricated box girder combined with the bridge erecting machine can be erected after the completion of the substructure, which can speed up the progress of the project and save the construction period; the cast-in-place box girder is mostly used for large c...

Claims

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Application Information

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IPC IPC(8): E01D21/00E04G21/02E01D2/04E01D101/26
CPCE01D21/00E04G21/02E01D2/04E01D2101/26
Inventor 徐茂林孙广志姜晓岩曲世忱王进龙闫雷郭鹏飞徐鸿图丛岩伟黄生效刘志建赵磊
Owner 黑龙江省龙建路桥第五工程有限公司
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