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Construction method of prefabricated outer wall cast-in-place section unilateral formwork of sandwich heat insulating plate with assembled structure

A technology of assembling structure and cast-in-place section, which is applied in the fields of formwork/template/work frame, on-site preparation of building components, connection of formwork/formwork/work frame, etc., which can solve the problem of hole blocking and waterproof treatment. Problems such as heavy workload

Inactive Publication Date: 2019-09-17
CHINA 22MCC GROUP CORP
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to facilitate the construction of the prefabricated wall in the prior art during the assembly period, holes are reserved in the wall structure during the prefabrication of the exterior wall, resulting in a large amount of work for hole sealing and waterproofing after construction, and there are hidden dangers of water seepage

Method used

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  • Construction method of prefabricated outer wall cast-in-place section unilateral formwork of sandwich heat insulating plate with assembled structure
  • Construction method of prefabricated outer wall cast-in-place section unilateral formwork of sandwich heat insulating plate with assembled structure
  • Construction method of prefabricated outer wall cast-in-place section unilateral formwork of sandwich heat insulating plate with assembled structure

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Embodiment Construction

[0027] Attached below Figure 1-5 The construction method of the present invention is described in detail:

[0028] A single-side formwork construction method for the prefabricated exterior wall cast-in-place section of an assembled structure sandwich insulation board, the operation steps are as follows:

[0029] First, make the pre-embedded connectors of the wallboard. The pre-embedded connector 1 is a steel bar vertically fixed on a steel plate; The method is welded together with the steel bar, the size of the steel plate is 100mm*100mm, and the thickness of the steel plate is 5mm.

[0030] Second, when prefabricating the wall panel, the connecting piece 21 is pre-embedded on the outer leaf plate of the poured part of the wall. When the outer leaf plate reinforcement is installed, the specific operation is: the steel plate of the connecting piece 21 is placed on the outer leaf plate reinforcement mesh The outer side is spot-welded with the reinforcement mesh; the reinforce...

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Abstract

The invention discloses a construction method of a prefabricated outer wall cast-in-place section unilateral formwork of a sandwich heat insulating plate with an assembled structure. The construction method includes the steps that preparation is conducted, specifically, a first connecting part is pre-embedded as a steel bar perpendicularly and fixedly connected to a steel plate, a second connecting part is pre-embedded as a steel bar with a screw thread perpendicularly and fixedly connected to the steel plate, a third connecting part is a straight steel bar, and one end of the third connecting part is provided with a screw thread; a fourth connecting part is a straight steel bar; the second connecting part is pre-embedded in the outer blade plate of the cast-in-place part of a wall body when a wall plate is prefabricated; the second connecting part and the first connecting part are pre-embedded in the outer blade plate when the outer wall is prefabricated at the corner and wing wall, and the third connecting part is pre-embedded in the inner blade plate; the fourth connecting part is arranged on the end surface of the inner blade wall plate; the construction of the wall body cast-in-place section steel bar is finished, the steel bar of the fourth connecting part is connected with the steel bar of the first connecting part by using an additional steel bar; the screw thread end of the second connecting part is connected with an outer screw rod through a long nut, and the outer screw rod penetrates through a template hole and is locked by using a fastener; and after the cast-in-place section concrete reaches the designed strength, the template is removed, and the outer screw rod, a conical PVC sleeve pipe and the long nut are cleaned and reused.

Description

technical field [0001] The invention belongs to the technical field of prefabricated wall construction, and in particular relates to a single-side formwork construction method for a prefabricated external wall cast-in-place section of an assembled structure sandwich insulation board. Background technique [0002] When prefabricating the sandwich insulation exterior wall, consideration should be given to providing a structure that is convenient for construction when assembling the wall. Generally, holes are reserved on the prefabricated exterior wall panels. After the prefabricated wall panels are installed, these reserved holes are used to install an outer frame or a tool-type protective frame on the outside of the wall panel, and the operator stands on the outer frame to carry out construction. After the steel bars are constructed, pull bolts are used to pass through the reserved bolt holes on the prefabricated wallboard on the outer side of the outer leaf board of the pref...

Claims

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Application Information

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IPC IPC(8): E04B2/86E04G11/08E04G17/065
CPCE04B2/86E04B2002/8682E04G11/08E04G17/0657
Inventor 赵春梅王雪峰孙明福李晓亮解龙
Owner CHINA 22MCC GROUP CORP
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