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Construction method for overall formwork one-time forming structure of pier

A construction method and technology for forming structures, which are applied to bridges, bridge parts, bridge construction, etc., can solve the problems of difficult to guarantee construction quality, poor vibrating, and difficulty in secondary formwork and stubble, so as to avoid non-compact concrete. , the effect of reducing difficulty

Active Publication Date: 2017-05-17
JIANGXI PROVINCE LUQIAO ENG GRP
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  • Claims
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Problems solved by technology

[0002] At present, the construction of double-column piers in domestic viaducts generally adopts H-shaped double-columns, and most of them are bell-mouth bridges with curved variable cross-sections, and the tie beams have a large span. The construction of double-column H-shaped piers over 10 meters mostly adopts the segmented pouring method. The secondary formwork is difficult and there are obvious segmented stubbles. If the one-time pouring appearance is not ideal; Vibration is not dense, the bridge pier variable cross-section and tie beam joints are densely reinforced, and the trumpet-shaped anchor notches and tie beam prestressed pipes are densely covered with steel bars. If it is poured at one time, it is difficult to vibrate the vertical section below the variable cross-section trumpet Dense
[0003] To sum up, the existing double-column piers have low construction efficiency, and the construction quality is difficult to guarantee, and there are a large number of obvious defects

Method used

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  • Construction method for overall formwork one-time forming structure of pier
  • Construction method for overall formwork one-time forming structure of pier
  • Construction method for overall formwork one-time forming structure of pier

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[0023] The present invention will be further described below in conjunction with the examples. The description of the following examples is provided only to aid the understanding of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0024] In this embodiment, the technical requirements for steel bar binding and welding, large-scale steel formwork splicing construction technology, post-tensioning prestressed tensioning technology of tie beams, etc. will not be described in detail, and the implementation mode of the one-time forming structure installation of the integral formwork of the bridge pier involved in the present invention will be elaborated. .

[0025] figure 1 It is a schematic dia...

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Abstract

The invention relates to a construction method for an overall formwork one-time forming structure of a pier. The method includes the following steps of (1) bearing platform surface treatment, (2) erection of a temporary scaffold for pier stud construction, (3) steel bar manufacturing and mounting, (4) formwork mounting, (5) concrete pouring, (6) formwork dismantling and curing, and (7) prestress tensioning and mortar pressing for tie beams. The construction method has the advantages of environmental friendliness, convenient construction, low manufacturing cost and the like.

Description

technical field [0001] The invention relates to a construction method for one-time forming of the integral formwork of a bridge pier. Background technique [0002] At present, the construction of double-column piers in domestic viaducts generally adopts H-shaped double-columns, and most of them are bell-mouth bridges with curved variable cross-sections, and the tie beams have a large span. The construction of double-column H-shaped piers over 10 meters mostly adopts the segmental pouring method. The secondary formwork is difficult and there are obvious segmented stubbles. Vibration is not dense, the bridge pier variable cross-section and tie beam connection parts are relatively dense, and the trumpet-shaped anchor notches and tie beam prestressed pipes are densely covered with steel bars. If it is poured at one time, it is difficult to vibrate the vertical section under the variable cross-section trumpet Dense. [0003] To sum up, the existing double-column piers have low ...

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Application Information

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IPC IPC(8): E01D21/00E01D19/02
CPCE01D19/02E01D21/00
Inventor 王新泉
Owner JIANGXI PROVINCE LUQIAO ENG GRP
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