Large-span cast-in-place special-shaped stair construction method

A construction method and large-span technology, which are applied in the directions of stairs, stepped structures, formwork/formwork/work frame, etc., can solve the problem of difficulty in realizing mechanical rotation control of stair side formwork, difficulty in simultaneously improving the installation quality of stair treads, and failure to Realize problems such as overall formwork support of ladder beams and ladder plates, and achieve the effect of reducing difficulty, reducing damage, and achieving precise positioning

Pending Publication Date: 2022-04-05
华神建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this technology, by setting the first chute, the first fixed block, the second chute, the slide bar and the second fixed block, the first fixed block moves downward on the first chute, and the second fixed block is moved, so that The second fixed block moves on the sliding rod, which improves the layout efficiency of special-shaped stairs, but this technology is difficult to realize the mechanical rotation control of the side formwork of the stairs, the integral support of the ladder beam and the ladder plate, and the difficulty of synchronously lifting the installation of the stair treads quality

Method used

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  • Large-span cast-in-place special-shaped stair construction method
  • Large-span cast-in-place special-shaped stair construction method
  • Large-span cast-in-place special-shaped stair construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as Figure 1-2 As shown, the large-span cast-in-place special-shaped staircase construction method includes the following steps:

[0043] S100, construction preparation: survey and determine the plane position of the cast-in-place step 49 and the cast-in-place ladder beam 48, erect the bottom support frame 1 under the cast-in-place ladder beam 48, and prepare materials and devices required for construction;

[0044] In this step, the bottom frame 1 includes a frame top plate 3 and a plurality of frame uprights 2 arranged below the frame top plate 3 , and the height control body 4 is located on the upper surface of the frame top plate 3 .

[0045] S200. Erection of adjustable formwork brackets: set height control bodies 4 evenly spaced vertically along the upper surface of bottom support frame 1; fill support filler 5 in support barrel 6 of height control body 4, and then place steering base plate 7 on the support The upper surface of the filler 5, and the steering...

Embodiment 2

[0068] In order to make it easier for those skilled in the art to understand, on the basis of Embodiment 1, this embodiment illustrates the preference of each component of Embodiment 1 by way of example:

[0069] The bottom bracket 1 includes a bracket vertical rod 2 and a bracket top plate 3;

[0070] The support pole 2 is made of a steel pipe with a diameter of 100mm;

[0071] The support top plate 3 is rolled from a steel plate with a thickness of 10 mm.

[0072] The height control body 4 includes a control body bottom plate 14, a support barrel 6 and a recycling trough 15, and the support barrel 6 is vertically welded to the control body bottom plate 14, and the support filler 5 is filled in the support barrel 6;

[0073] The support filler 5 adopts medium and fine sand;

[0074] The support barrel 6 adopts a thickness of 10mm steel plate to be rolled into a cylindrical shape, with a height of 10cm and a diameter of 30cm. The control body bottom plate 14 is formed by a 1...

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Abstract

The invention relates to a construction method of a large-span cast-in-place special-shaped stair. According to the scheme, the construction method comprises the steps that S100, construction preparation is conducted; s200, an adjustable formwork support is erected; s300, a lower layer formwork is erected; s400, a stair reinforcement cage is hoisted and placed; s500, a step side formwork is erected; s600, stair concrete construction is carried out; and S700, stair step plate installation is carried out. The construction method has the advantages that the construction quality of the large-span cast-in-place special-shaped stairs is improved, the construction difficulty is reduced, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a construction method for a large-span cast-in-place special-shaped staircase. Background technique [0002] In the process of building construction, in order to enhance the space artistry and architectural beauty of the stairs, special-shaped stairs with variable curvature are often used. In the construction of variable curvature special-shaped stairs, it is often necessary to solve the problems of precise control of the space position of the formwork and the ordinary installation of facing bricks. How to improve the accuracy of formwork installation and positioning, reduce the difficulty of erecting brackets, and improve construction efficiency has always been the focus and difficulty of engineering control. . [0003] In the prior art, there is an easy-to-use special-shaped staircase pouring formwork, which includes an upper formwork and a lower formwork. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F11/02E04F11/022E04G13/06E04G9/06E04G17/00E04G17/04
Inventor 吴瑞均袁光辉李宇林
Owner 华神建设集团有限公司
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