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Construction method of high-precision formwork for cast-in-place fair-faced concrete in wind tunnel

A technology of fair-faced concrete and construction methods, which is applied in the direction of formwork/formwork/work frame, connectors of formwork/formwork/work frame, and on-site preparation of building components, which can solve the problems of low precision of fair-faced concrete, Achieve the effects of various measurement and control methods, high dimensional accuracy and good stability

Active Publication Date: 2021-10-22
CHINA CONSTR EIGHTH BUREAU DEV & CONSTR CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-precision formwork construction method for cast-in-place clear-water concrete wind tunnels, which mainly solves the problem of low precision of clear-water concrete in the prior art when pouring wind tunnels

Method used

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  • Construction method of high-precision formwork for cast-in-place fair-faced concrete in wind tunnel
  • Construction method of high-precision formwork for cast-in-place fair-faced concrete in wind tunnel
  • Construction method of high-precision formwork for cast-in-place fair-faced concrete in wind tunnel

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Embodiment

[0041] Such as figure 1 and Figure 8 As shown, the high-precision formwork construction method of cast-in-place concrete wind tunnel requires the formwork to be processed to meet the high-precision requirements. , so that all formworks with the same purpose (vertical, horizontal, and inclined) are kept at the same height, so that the formwork can be realized more accurately, and the flatness of the formwork can be adjusted so that the entire surface in contact with the concrete The inner surface is horizontal.

[0042] During specific construction:

[0043] Step 1: Use the cut formwork to set up the formwork at the determined position where the wind tunnel needs to be poured to pour the lower columns of the entire wind tunnel structure, where the number of lower columns is at least six, and all the lower columns are in two columns The distribution and simultaneous positions correspond to each other (six times, that is, they are divided into two columns, and the columns are...

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Abstract

The invention discloses a method for constructing a high-precision formwork in a cast-in-place concrete wind tunnel. The method includes the following steps: performing formwork construction on the lower columns of the wind tunnel structure; extending the lower columns located on both sides upward to complete the construction of the high columns; The high-precision formwork formwork completes the construction of the main and secondary beams and the bottom plate of the lower part; the formwork is used to construct the inclined plates and secondary beams on both sides of the lower part; the formwork is used to construct the lower half of the vertical plate; The first half of the construction is carried out; under the condition of full scaffolding support, the construction of the upper side sloping plate and roof is completed through high-precision formwork formwork; under the condition of full scaffolding support, the upper primary and secondary beams are completed through high-precision formwork formwork Carry out construction; complete the prestressed tensioning of the upper main girder; remove all temporary support structures after forming, and the construction is completed. Through the above scheme, the present invention achieves the purpose of high-precision forming, and has high practical value and popularization value.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a high-precision formwork construction method for cast-in-place fair-faced concrete wind tunnels. Background technique [0002] With the vigorous development of the construction industry, more and more landmark buildings are designed and constructed with fair-faced concrete. Fair-faced concrete is an expression method of architectural modernism. It is also called decorative concrete because of its great decorative effect. After the concrete is poured, there is no longer any painting, tiles, stones and other materials, showing a plain color of concrete. method. At present, the fair-faced concrete construction technology in the industry only meets the requirements for appearance effects, and there is no successful case for the control of its precision requirements. And the application of fair-faced concrete to wind tunnel construction has not yet occurre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G11/02E04G11/28E04G17/04
CPCE04G11/02E04G11/28E04G17/04
Inventor 周殷弘林峰于振兴马贤领梁栋曹江朱彬何清姜德龙秦靖闰王森基鲍小鲁嵇朵平尹鹏王敏鹏黄建国
Owner CHINA CONSTR EIGHTH BUREAU DEV & CONSTR CO LTD
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