CN209760880U - Assembled steel structure stair - Google Patents

Abstract

The utility model provides an assembled steel construction stair, include: the stair layer of connection can be dismantled on a plurality of layers, the stair layer is provided with all around and encloses and be equipped with the safety net, the four corners stand on stair layer is made by 100 x 100 side's pipe, the middle bearing diagonal on stair layer is connected by 50 x 6 equilateral angle steel, the top stair layer upside is provided with the double-deck inoxidizing coating, the steel stair of stair in situ portion adopt to make by 160C type purlin. The utility model has the advantages that by arranging the detachable stair layers and splicing the detachable stair layers to form the integral steel structure stair, the assembly efficiency is improved, and the transportation difficulty is reduced; meanwhile, the protective net is arranged around the stair layer, and the safety performance of the stair is improved.

Description

Assembled steel structure stair

Technical Field

The utility model relates to a building engineering technical field particularly, relates to an assembled steel construction stair.

Background

The assembled steel structure stair is a foundation pit passageway for people to get on and off, and the existing assembled steel structure stair is inconvenient to disassemble, low in assembly efficiency and poor in structural stability.

Disclosure of Invention

In view of this, the utility model provides an assembled steel construction stair aims at solving the lower problem of current steel construction stair assembly efficiency.

In one aspect, the utility model provides an assembled steel construction stair, include: the stair layer of connection can be dismantled on a plurality of layers, the stair layer is provided with all around and encloses and be equipped with the safety net, the four corners stand on stair layer is made by 100 x 100 side's pipe, the middle bearing diagonal on stair layer is connected by 50 x 6 equilateral angle steel, the top stair layer upside is provided with the double-deck inoxidizing coating, the steel stair of stair in situ portion adopt to make by 160C type purlin.

Further, two adjacent stair laminates are connected through bolts.

Furthermore, two ends of the upright post are welded with node plates of 8 multiplied by 300 mm.

Further, two adjacent gusset plate products are connected through a bolt with the diameter of 16 mm.

Further, the stair railing of the stair layer is made of steel pipes with the diameter of 48mm through welding.

Further, the height of stair railing is 900 mm.

The utility model has the advantages that by arranging the detachable stair layers and splicing the detachable stair layers to form the integral steel structure stair, the assembly efficiency is improved, and the transportation difficulty is reduced; meanwhile, the protective net is arranged around the stair layer, and the safety performance of the stair is improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

Fig. 1 is a side view of the assembled steel structure stair that the embodiment of the utility model provides.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1, the present embodiment discloses an assembled steel structure staircase, including: the stair layer 1 of connection can be dismantled on a plurality of layers, stair layer 11 is provided with all around and encloses and be equipped with the safety net, the four corners stand 2 of stair layer 1 is made by 100 x 100 side's pipe, the middle bearing diagonal 3 of stair layer 1 is connected by 50 x 6 equilateral angle steel, the top 1 upside of stair layer is provided with double-deck inoxidizing coating 4, the steel stair of stair layer 1 inside are adopted and are made by 160C type purlin, the adoption of marking time of steel stair 4.5mm decorative pattern steel welds.

Specifically, two adjacent stair layer 1 products are connected through bolts. Two ends of the upright post are welded with node plates of 8mm by 300 mm. Two adjacent gusset plate finished pieces are connected through a bolt with the diameter of 16 mm. The stair railing of the stair layer 1 is made of steel pipes with the diameter of 48mm through welding. The height of the stair railing is 900 mm.

The detachable stair layers are arranged, and the integral steel structure stair is formed by splicing, so that the assembly efficiency is improved, and the transportation difficulty is reduced; meanwhile, the protective net is arranged around the stair layer, and the safety performance of the stair is improved.

In specific implementation, the assembled steel structure stair is a passageway for people to get on and off a foundation pit, is detachable and reusable, can be assembled and adjusted according to the height of the foundation pit, has the length of 5600mm, the width of 3000mm and the height of 12800mm, runs for three times, has the height of 3000mm, is manufactured by square pipes of 5 multiplied by 100mm, is welded with node plates of 8 multiplied by 300mm at two ends, is welded with node plates of 8 multiplied by 350mm at intervals of 3000mm, is connected with the framework upright, the cross beams and inter-column supports by phi 16 bolts, is connected with the node plates by equilateral angle steel of 50 multiplied by 6, has all the welding line lengths of 100mm, the welding line height of 6mm, the bolt aperture of 18mm, the center distance of the beam holes of 50mm and the edge distance of 25 mm; the platform width is 1m, a 2800 x 800mm platform truss is welded by square pipes of 100mm and 50mm, is 200mm away from the main frame beam and is fixed by a phi 16 bolt; the steel stair step beam adopts 160C type sandalwood strips, the step adopts 4.5mm figured steel to be welded into a whole, and 75 multiplied by 6 angle steel is welded at two ends of the step inclined beam and fixed on the platform truss by bolts. The corridor for connecting the foundation pit and the steel structure stairs is formed by splicing a stand column, a cross beam and purlins into a whole, welding a gusset plate and 100 multiplied by 6 angle steel on the cross beam of the main frame at one layer, connecting the stand column and the cross beam by bolts, and connecting 4.5 pattern steel plates with the cross beam and the platform truss by self-tapping screws after assembly. The top of the passageway for passengers to go up and down is protected hard by double layers, the periphery is totally closed by a steel safety net, the stair railing is welded and connected by phi 48 steel pipes, the height is 900mm, the distance between two transverse steel pipes is 700mm, the distance between the phi 35mm steel pipes is welded in the middle of the stair railing and is 180mm, angle steel is welded at the bottoms of upright columns at two ends of the stair railing and is fixed on the side surface of a ladder beam by phi 10 bolts, a 600 x 600 plain concrete foundation is adopted as a foundation under the column, a 300 x 300mm steel plate is embedded at the upper part.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (6)

1. An assembled steel structure stair, comprising: the stair layer of connection can be dismantled on a plurality of layers, the stair layer is provided with all around and encloses and be equipped with the safety net, the four corners stand on stair layer is made by 100 x 100 side's pipe, the middle bearing diagonal on stair layer is connected by 50 x 6 equilateral angle steel, the top stair layer upside is provided with the double-deck inoxidizing coating, the steel stair of stair in situ portion adopt to make by 160C type purlin.

2. The fabricated steel structural staircase of claim 1, wherein adjacent staircase laminates are bolted together.

3. The fabricated steel structural staircase of claim 2, wherein the uprights are welded at both ends with 8 x 300mm gusset plates.

4. The assembled steel structure staircase of claim 3, wherein two adjacent gusset plate members are connected by a 16mm diameter bolt.

5. The fabricated steel structural staircase of claim 1, wherein the staircase banisters of the staircase layers are made of steel tubes with a diameter of 48mm by welding.

6. The fabricated steel structural staircase of claim 5, wherein the height of the staircase banister is 900 mm.