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Installation method of prefabricated staircase

An installation method and stair technology, applied in the direction of stairs and other directions, can solve the problems of easy collision, inconvenient installation of stairs, difficult alignment and other problems, and achieve the effect of improving efficiency and safe and reliable engineering quality.

Inactive Publication Date: 2020-09-15
CHINA MCC5 GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production of bumps and positioning grooves is complicated, and it is difficult to align in actual installation, and collisions are likely to occur, resulting in quality problems in the installation of stairs
[0004] Therefore there is above-mentioned inconvenience and problem in the installation mode of known stair

Method used

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  • Installation method of prefabricated staircase
  • Installation method of prefabricated staircase
  • Installation method of prefabricated staircase

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Embodiment 1

[0026] see now Figure 1-Figure 3 , figure 1 It is a schematic diagram of the installation structure of the prefabricated stairs of the embodiment of the present invention, figure 2 for figure 1 The sectional view of A-A in, image 3 for figure 1 Sectional view of B-B in middle. As shown in the figure, the ladder beam 1 is a prefabricated ladder beam.

[0027] The installation method of prefabricated stairs of the present invention comprises the steps of:

[0028] a. Pre-embed the steel casing during the construction of the ladder beam structure, and correspond to the reserved bolt holes 2 of the ladder section one by one;

[0029] b. The prefabricated ladder section 4 is hoisted in place, leveled, and high-strength bolts 3 are inserted into the reserved holes;

[0030] c. The gap between the high-strength bolts and the ladder beam steel pipe 6 is filled and consolidated with C35 grouting material 5;

[0031] d. The connection between the ladder section and the high-s...

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Abstract

An installation method of a prefabricated staircase is characterized by comprising the following steps: (a) embedding multiple steel tubes in advance during construction of a staircase beam structure,wherein the steel tubes are disposed in parallel and at an interval, and are in one-to-one correspondence to staircase section reserved holes; (b) hoisting a staircase section in place and leveling the staircase section, and inserting a bolt in each reserved hole; (c) clearance between each bolt and inside of the staircase beam steel tube is filled with a grouting material for concretion; and (d)the staircase section and the bolts are connected by grouting material concretion or hinging according to design requirements. The installation method of the prefabricated staircase provided by the invention has the beneficial effects that hoisting efficiency of the prefabricated staircase is increased; engineering quality is safe and reliable; and a mode of reserving steel casings in the staircase base is used, so that requirements for installation and fixation of the prefabricated staircase are satisfied, and adjustable space is reserved for positioning and leveling during hoisting of the prefabricated staircase.

Description

technical field [0001] The invention relates to a method for installing a staircase, in particular to a method for installing a prefabricated staircase. Background technique [0002] At present, prefabricated structures are more and more widely used. Due to the self-heavy weight of prefabricated stairs, the weight of a single block is as high as 2t, and it is difficult to lift and place them in place. The upper and lower ends of the stairs are connected by high-strength screws. Buried screws have high requirements for positioning and fixing, and the hoisting and positioning of prefabricated stairs is difficult and inefficient. [0003] Chinese patent CN208650424U disclosed a prefabricated staircase on March 26, 2019, which includes a staircase body. The staircase body is provided with a first connecting hole passing through the staircase body along the width direction. One side of the stair body is provided with a number of positioning projections, and the other side of the...

Claims

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Application Information

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IPC IPC(8): E04F11/02
CPCE04F11/02
Inventor 徐建功徐礼金梁广远汪从
Owner CHINA MCC5 GROUP CORP
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