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Light assembly type stair and installation method

A prefabricated and stair technology, applied in the direction of stairs, stepped structures, building components, etc., can solve the problems affecting the promotion and application of prefabricated slab stairs, cumbersome binding of steel skeletons, difficult construction and hoisting, etc., achieving good mechanical properties and easy production. , the effect of saving labor

Inactive Publication Date: 2022-07-22
河北旺嘉科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the existing prefabricated slab stairs on the market are mainly PC, which is a kind of prefabricated reinforced concrete stairs. The inside of the stair slab is bounded steel skeleton, and the concrete is poured. The weight is generally more than 2 tons. The binding of the steel skeleton is cumbersome and heavy. The big disadvantage brings difficulties to the construction and hoisting, and is not suitable for the hoisting of conventional small-tonnage tower cranes, which greatly affects the promotion and application of prefabricated slab stairs

Method used

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  • Light assembly type stair and installation method
  • Light assembly type stair and installation method
  • Light assembly type stair and installation method

Examples

Experimental program
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Effect test

Embodiment 1

[0041]A light assembled staircase, comprising an upper layer 1, a filling material 2, a lower layer 3, a peg 4, a grouting slurry 5, a steel frame 6, a stair section board 7, a reserved connection point hole 8 and a fixing mechanism 9 , the filler material 2 is filled between the upper layer 1 and the lower layer 3, the side end faces of the filler material 2 are arranged with studs 4, and the side end faces of the upper layer 1 and the lower layer 3 are provided with stair sections Board 7, the inner cavity of the stair section board 7 is provided with a grouting slurry 5, the upper layer 1 and the upper end face edge of the stair section board 7 are provided with reserved connection point holes 8 on both sides. The fixing mechanism 9 clamps the upper end face of the upper layer 1 and the lower end face of the lower layer 3. The steel frame 6 includes a frame body 61, a sandwich material 62, a screw 63 and a reinforcing structure node 64. The inner cavity of the frame body 61 ...

Embodiment 2

[0043] The fixing mechanism 9 includes a steel beam 91, a screw 92, a nut 93, a limit baffle plate 94, a socket ring 95, a mounting frame 96 and a limit filling block 97. The upper end face of the steel beam 91 is installed with the mounting frame 96, so The inner cavity of the mounting frame 96 is vertically provided with a limiting baffle plate 94, a screw 92 is arranged between the steel beam 91 and the mounting frame 96, the other end of the screw 92 is mounted with a nut 93, and the top end of the screw 92 A socket ring 95 is provided, the upper end surface of the socket ring 95 is installed with a limit plug block 97 , and the upper end surface of the screw 92 and the top of the inner cavity wall of the mounting frame 96 pass through the socket ring 95 and the limit plug block 97 Active fit, the steel beam 91 is an I-shaped member, the lower end wall of the steel beam 91 is attached to the ground, the upper end wall of the steel beam 91 is attached to the bottom end surfa...

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Abstract

The invention discloses a light fabricated stair and a mounting method, and belongs to the technical field of fabricated buildings. The weight of the stair is half of that of a PC stair, the stair can be constructed and hoisted through a small-tonnage tower crane, the stair framework is simple in design structure, easy to manufacture and good in mechanical property, the overall performance of the stair is improved, seismic resistance is facilitated, and the cement pouring or the PC stair is a part with low seismic resistance in a whole building. Connection nodes of the steel ladder beams are designed according to the principle of sliding connection nodes, so that the staircase does not participate in bearing of horizontal loads, safety of the staircase is improved, a welded steel framework is arranged in a staircase section plate, and studs are evenly welded to the inner side of the framework in a plum blossom shape, so that bonding of the steel framework and high-strength slurry is guaranteed (as shown in the schematic diagram of the steel framework). The framework is filled with core materials, the cross section size of the framework is designed according to different spans of ladder sections, novel high-strength slurry is used for pouring upper and lower panels, and a layer of steel wire mesh is arranged inside.

Description

technical field [0001] The invention relates to the technical field of prefabricated buildings, and more particularly, to a light-duty prefabricated staircase and an installation method. Background technique [0002] At present, the existing prefabricated slab stairs on the market are mainly PC, which is a kind of prefabricated reinforced concrete stairs. The stair slab is bound with a steel skeleton, and the concrete is poured. The big disadvantage is that it brings difficulties to the construction and hoisting, and it is not suitable for the hoisting of conventional small-tonnage tower cranes, which greatly affects the promotion and application of prefabricated slab stairs. [0003] In view of the problems existing in the existing stairs, the present invention provides a light-duty assembled staircase, which is composed of sections and platforms, and is a slab staircase. In addition to the ladder section, one (two) ends can be equipped with platforms. There is a steel sk...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F11/035E04F11/09E04G21/14E04C5/03E04C5/04
CPCE04F11/035E04F11/09E04G21/14E04C5/03E04C5/04
Inventor 杨卓舒柴玉良杨慧峰屈太阳张华斌刘丙峻程长友
Owner 河北旺嘉科技有限公司