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The construction method of the reserved hole in the floor and the flanging of the hole at the same time

A construction method and technology for reserving holes, which can be applied in the fields of formwork/template/work frame, on-site preparation of building components, construction, etc., which can solve problems such as difficulty in supporting formwork and poor forming.

Active Publication Date: 2016-05-04
CHINA NAT CHEM ENG THIRD CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most industrial pipes have small diameters, so the reserved holes and flanges are also relatively small. Small diameter reserved holes and flanges are generally constructed separately, and the formwork is very difficult and the forming is poor.

Method used

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  • The construction method of the reserved hole in the floor and the flanging of the hole at the same time

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, by describing embodiment, the present invention will be further described:

[0020] Such as figure 1 As shown, the construction method for the simultaneous construction of the reserved hole of the floor slab and the flanging of the hole of the present invention comprises the following steps:

[0021] 1), formwork support is carried out to concrete floor bottom formwork 7;

[0022] 2), measure and set out the line, determine the reserved hole position on the bottom formwork 7 of the concrete floor;

[0023] 3), take two steel pipes with different diameters, the larger diameter is the outer pipe 3, and the smaller diameter is the inner pipe 2, and then the inner pipe 2 and the outer pipe 3 are cut into 4 equally divided arc plates, And the bottom of the inner pipe 2 uses the first Pozir 1 to fix the 4 circular arc plates of the inner pipe 2, and the bottom of the inner pipe 2 is positioned at the reserved hole position of ...

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PUM

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Abstract

The invention discloses a construction method of synchronously constructing a preformed hole for a floor slab and a flanging of the preformed hole. The construction method mainly comprises the following steps of carrying out mold erecting on the floor slab, locating the performed hole, producing a mold used for synchronously constructing the preformed hole for the floor slab and the flanging of the preformed hole, fixing the mold used for synchronously constructing the preformed hole for the floor slab and the flanging of the preformed hole, pouring concrete, maintaining and removing the mold. The construction method has the advantages of simplicity and convenience for pouring of the performed hole and operation of the flanging, little investment, low cost, good effect and capability of molding the preformed hole for the concrete floor slab and the flanging of the performed hole at one time.

Description

technical field [0001] The invention relates to a reserved hole of a concrete floor slab and its flanging technology, in particular to a construction method in which the reserved hole of the floor slab and the flanging of the hole are constructed simultaneously. Background technique [0002] In industrial buildings, in order to ensure that the pipeline installation passes through the floor smoothly, it is necessary to set up circular pipeline reserved holes on the concrete floor; at the same time, due to the environmental protection requirements of industrial chemical equipment to prevent the floor sewage from flowing along the pipeline, usually the reserved holes in the floor are all set Turn over. [0003] Most industrial pipes have small diameters, so the reserved holes and flanges are also relatively small. Small diameter reserved holes and flanges are generally constructed separately, and the formwork is very difficult and the forming is poor. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G15/06
Inventor 王泳文张阔杨莹莹
Owner CHINA NAT CHEM ENG THIRD CONSTR