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Cast-in-place concrete beam slab stair totally-closed formwork reinforcing method

A concrete beam, fully enclosed technology, applied in the direction of formwork/formwork/work frame, formwork/formwork/work frame connector, on-site preparation of building components, etc., can solve the cost of finished product protection and low construction efficiency , poor construction quality and other problems, to achieve the effect of reducing construction efficiency, avoiding unevenness and avoiding damage

Inactive Publication Date: 2022-01-11
SHANGHAI BAOYE GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems mentioned in the background technology, the object of the present invention is to provide a fully enclosed formwork reinforcement method for cast-in-place concrete beam-slab stairs to solve the low construction efficiency and poor construction efficiency of cast-in-place concrete beam-slab stairs in the prior art. The quality is poor, and it is easy to cause unnecessary protection costs for finished products

Method used

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  • Cast-in-place concrete beam slab stair totally-closed formwork reinforcing method
  • Cast-in-place concrete beam slab stair totally-closed formwork reinforcing method

Examples

Experimental program
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Effect test

Embodiment 1

[0042] This embodiment provides a fully enclosed formwork reinforcement method for cast-in-place concrete beam-slab stairs, such as Figure 1-2 , this cast-in-situ concrete beam-slab staircase fully enclosed formwork reinforcement method includes the following steps:

[0043] S1. Erection of stair step formwork 3: The stairwell formwork support system is erected perpendicular to the formwork on the bottom of the steps. The setting of sweeping rods and passages is set up according to the requirements of the formwork construction plan. The horizontal rods of the indoor supporting frame extend to the stairwell and are reliably connected to it , to form a whole, to ensure integrity;

[0044] S2. Installation of the formwork at the bottom of the stair steps: the wood on both sides of the primary and secondary keels is supported by jacking, and the spacing between the square wood of the bottom and secondary keels of the formwork is set;

[0045] S3. Binding of steel bars on stair s...

Embodiment 2

[0058] A fully enclosed formwork reinforcement method for cast-in-situ concrete beam-slab stairs includes the following steps:

[0059] S1. Erection of stair step formwork 3: The stairwell formwork support system is erected perpendicular to the formwork on the bottom of the steps. The setting of sweeping rods and passages is set up according to the requirements of the formwork construction plan. The horizontal rods of the indoor supporting frame extend to the stairwell and are reliably connected to it , to form a whole, to ensure integrity;

[0060] S2. Installation of the formwork at the bottom of the stair steps: the wood on both sides of the primary and secondary keels is supported by jacking, and the spacing between the square wood of the bottom and secondary keels of the formwork is set;

[0061] S3. Binding of steel bars on stair steps: The bottom steel bars are bound first, and the upper steel bars are bound when the top surface of the steps and the side formwork 32 are...

Embodiment 3

[0069] A fully enclosed formwork reinforcement method for cast-in-situ concrete beam-slab stairs includes the following steps:

[0070] S1. Erection of stair step formwork 3: The stairwell formwork support system is erected perpendicular to the formwork on the bottom of the steps. The setting of sweeping rods and passages is set up according to the requirements of the formwork construction plan. The horizontal rods of the indoor supporting frame extend to the stairwell and are reliably connected to it , to form a whole, to ensure integrity;

[0071] S2. Installation of the formwork at the bottom of the stair steps: the wood on both sides of the primary and secondary keels is supported by jacking, and the spacing between the square wood of the bottom and secondary keels of the formwork is set;

[0072] S3. Binding of steel bars on stair steps: The bottom steel bars are bound first, and the upper steel bars are bound when the top surface of the steps and the side formwork 32 are...

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Abstract

The invention provides a cast-in-place concrete beam slab stair totally-closed formwork reinforcing method. By changing the formwork erecting mode of stair steps, the stair step semi-closed formwork machining mode in the traditional technology is innovatively changed into the stair step totally-closed formwork reinforcing construction mode, and the stair step is used as a special-shaped shear wall to be reinforced. According to the cast-in-place concrete beam slab stair totally-closed formwork reinforcing method, the problems caused by the stair steps after formwork removal due to the fact that a traditional cast-in-place stair concrete beam slab stair formwork is erected can be effectively solved, the construction efficiency is greatly reduced, and unnecessary labor cost and repairing cost are caused; and meanwhile, specially-assigned persons do not need to be arranged for finished product protection after pouring is completed, a gap is reserved during splicing of a stair step top face formwork and a side face formwork, after stair concrete is poured, stair concrete is vibrated through a vibrating rod, stair concrete grout overflows from the gap, it is guaranteed that the formwork is filled with the stair concrete in place, and the quality problems of honeycombs, pitted surfaces, holes and the like in local stepping parts are solved.

Description

technical field [0001] The invention relates to the engineering field of cast-in-situ concrete beam-slab stairs in building construction, in particular to a method for strengthening a fully enclosed formwork of cast-in-situ concrete beam-slab stairs. Background technique [0002] Construction engineering refers to engineering entities formed through the construction of various housing buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. It is a project that can form an internal space to meet the needs of people's production, living, learning, and public activities. Among them, the cast-in-place reinforced concrete staircase refers to the staircase that pours the stair section, platform and platform beam into a whole on-site. It has good integrity and earthquake resistance. Strong, according to the different structure is divided into two kinds of slab stairs and beam stairs. [0003] At present, when the cast-in-situ co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G13/06E04G17/00E04G17/065E04G21/30
CPCE04G13/062E04G17/001E04G17/0655E04G21/30
Inventor 魏巍熊雁冰李可佳郑俊宇闫勇先
Owner SHANGHAI BAOYE GRP CORP
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