CN214941801U

CN214941801U - Assembled steel construction stair unit and multilayer steel construction stair

Info

Publication number: CN214941801U
Application number: CN202120827120.4U
Authority: CN
Inventors: 唐安虎
Original assignee: Shaanxi Tianjian Steel Structure Engineering Co ltd
Current assignee: Shaanxi Tianjian Steel Structure Engineering Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-11-30
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses an assembled steel construction stair unit and multilayer steel construction stair. The fabricated steel structural stairway unit includes: the stair tread comprises a pair of profile steel main beams and a plurality of mutually connected stair treads arranged on the profile steel main beams, wherein the outer sides of the upper ends of the profile steel main beams are fixedly connected with an upper fixing plate, and the upper fixing plate and the side surface of a building floor slab are fixed through bolts; the stair steps comprise a step plate, a lower vertical plate and an upper vertical plate which are perpendicular to the step plate, and mounting plates fixed on the side faces of the step plate and the lower vertical plate, wherein the mounting plates and the section steel main beams are fixed through bolts; the bottom of the lower vertical plate is provided with a limiting groove, the top of the upper vertical plate is provided with a limiting bulge, and two adjacent stair steps are clamped with the limiting bulge through the limiting groove; as well as armrests and armrest posts. The assembly type steel structure stair unit is fast to assemble, and the disassembled stair unit can be reused.

Description

Assembled steel construction stair unit and multilayer steel construction stair

Technical Field

The utility model belongs to the steel construction field especially relates to an assembled steel construction stair unit and multilayer steel construction stair.

Background

The steel structure engineering is a structure mainly made of steel, mainly comprises steel beams, steel columns, steel trusses and other members made of section steel, steel plates and the like, all the members or components are usually connected by welding seams, bolts or rivets, the steel structure engineering is one of main building structure types, is widely applied to the fields of large-scale factory buildings, bridges, venues, super-high buildings and the like due to light self weight and simple and convenient construction, and the steel structure stairs are used as members for vertical intersection between floors in a steel structure building and are used for traffic connection between floors and when the height difference is large.

In some temporary operation occasions, the built steel structure building can use the stairs, and the stairs are convenient to construct and assemble when being built and also convenient to dismantle and transport after being used due to short service time. Current steel construction stair generally cut off into the standard specification with the steel section bar, then transport the steel section bar to the scene and weld and assemble, and the welded process is comparatively loaded down with trivial details, also need take the time to excise when demolising simultaneously, and the unable used repeatedly of steel is extravagant great moreover. Therefore, it is necessary to design an assembled steel structure stair unit and a multi-layer steel structure stair.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides an assembled steel construction stair unit and multilayer steel construction stair, aims at solving steel construction stair welding equipment operation intensity among the prior art big, the unable reuse's after the cutting is demolishd problem.

The utility model adopts the technical scheme as follows:

an assembled steel structure stair unit. The fabricated steel structural stairway unit includes: the stair tread comprises a pair of profile steel main beams and a plurality of mutually connected stair treads arranged on the profile steel main beams, wherein the outer sides of the upper ends of the profile steel main beams are fixedly connected with an upper fixing plate, and the upper fixing plate and the side surface of a building floor slab are fixed through bolts; the stair steps comprise a step plate, a lower vertical plate and an upper vertical plate which are perpendicular to the step plate, and mounting plates fixed on the side faces of the step plate and the lower vertical plate, wherein the mounting plates and the section steel main beams are fixed through bolts; the bottom of the lower vertical plate is provided with a limiting groove, the top of the upper vertical plate is provided with a limiting bulge, and two adjacent stair steps are clamped with the limiting bulge through the limiting groove; the part of the mounting plate, which is higher than the section steel main beam, is fixed with the armrest upright post through bolts, and the top of the armrest upright post is fixed with the armrest through bolts.

The working principle is as follows: the method comprises the steps of determining the gradient of the section steel main beams according to design requirements, fixing the upper fixing plate and a building floor plate through bolts after the section steel main beams are moved to proper positions, installing the stair steps between the section steel main beams from bottom to top after the installation is finished, fixing the stair steps, fixing the handrail upright columns to the installation plates, and finally installing the handrails on the handrail upright columns, so that the stair steps can be put into use. The utility model discloses in mention through the bolt fastening all reserve in advance in the position that corresponds and have the fixed orifices, only need at the installation site with the bolt fastening can.

It is required to explain, the utility model provides an assembled steel construction stair unit is applicable to the construction conditions that planning design was good in earlier stage, the height and the number that stair were marked time need with the length and the design slope adaptation of shaped steel girder avoid appearing the unmatched condition of number and assembly space are marked time to stair. In addition, after each part of the assembled steel structure stair unit is removed, the assembled steel structure stair unit can only be repeatedly used for buildings under the same construction condition.

In above technical scheme, because each part of assembled steel construction stair unit all passes through the bolt fastening, easy dismounting, the work load is little, and is lower to installer's requirement moreover, and work efficiency is high. The shaped steel girder passes through with existing building floor the upper fixed plate is installed fixedly, can satisfy the bearing needs after the installation, again can conveniently dismantle, reuse. Stair step on the one hand with the shaped steel girder is fixed, on the other hand with adjacent stair step passes through spacing recess with spacing protruding block, the fixed action is strong, and stability is good. The handrail and the handrail upright post jointly form a protective fence, and further form protection for people going upstairs and downstairs.

When shaped steel girder lower extreme and ground contact, directly contradict the lower extreme and ground can. Further, when applying to multi-storey building, need with when shaped steel girder lower extreme and building floor surface are fixed, in order to satisfy fixed demand, shaped steel girder lower extreme bottom fixedly connected with bottom plate, bottom plate and building floor surface pass through the bolt fastening.

Further, the section steel main beam and the floor slab of the existing building are installed and fixed through the upper fixing plate and the lower fixing plate. Further, the upper vertical plate of the stair step at the uppermost stage is fixed with the side edge of the building floor through bolts, and the installation stability of the assembly type steel structure stair unit is guaranteed under the double effects. Furthermore, an angle steel base is arranged at the bottom of the position where the stair step at the uppermost stage is connected with the floor of the building.

Further, the shape of mounting panel is trapezoidal, according to the slope setting of shaped steel girder the trapezoidal hypotenuse of mounting panel guarantees to make under the fixed prerequisite firm the outward appearance of assembled steel construction stair unit is more pleasing to the eye.

Furthermore, the handrail is of a T-shaped structure and comprises a cross rod and a fixing plate arranged at the lower end of the cross rod, when the handrail is installed, the fixing plate and the handrail upright post are overlapped, the reserved fixing holes correspond to each other, and then the handrail is fixed through bolts.

Further, the handrail upright post is perpendicular to the section steel main beam.

Additionally, the utility model also provides a multilayer steel construction stair. The multi-storey steel structure stair comprises a plurality of assembled steel structure stair units and a rest platform arranged between two stories of buildings, and support columns arranged below the rest platform.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses a prefabricate each component of assembled steel construction stair unit, the mode that only needs to utilize bolted connection on the scene is assembled, convenient and fast, and work efficiency is high, and the stair unit after demolising moreover still can used repeatedly, has practiced thrift steel.

Drawings

Fig. 1 is a schematic structural view of an assembly type steel structure stair unit of the present invention;

FIG. 2 is a schematic structural view of a stair step of the assembly type steel structure stair unit of the present invention;

fig. 3 is the structure schematic diagram of the multi-layer steel structure stair of the utility model.

Description of the reference numerals

1: a section steel main beam; 2: stair stepping; 21: a step plate; 22: a lower vertical plate; 221: a limiting groove; 23: an upper vertical plate; 231: a limiting bulge; 24: mounting a plate; 3: an upper fixing plate; 4: a building floor; 5: a handrail column; 6: a handrail; 61: a cross bar; 62: a fixing sheet; 7: a lower fixing plate; 8: an angle steel base; 9: a resting platform; 10: and (4) a support column.

Detailed Description

Various exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements well known to those skilled in the art have not been described in detail so as not to obscure the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Fig. 1 is a schematic structural view of an assembly type steel structure stair unit of the present invention; FIG. 2 is a schematic structural view of a stair step of the assembly type steel structure stair unit of the present invention; fig. 3 is the structure schematic diagram of the multi-layer steel structure stair of the utility model. As shown in fig. 1 to 3, the fabricated steel structural stairway unit includes: the stair tread structure comprises a pair of steel section main beams 1 and a plurality of mutually connected stair treads 2 arranged on the steel section main beams 1, wherein the outer side of the upper end of each steel section main beam 1 is fixedly connected with an upper fixing plate 3, and the upper fixing plates 3 and the side surfaces of a building floor slab 4 are fixed through bolts; the stair step 2 comprises a step plate 21, a lower vertical plate 22 and an upper vertical plate 23 which are vertical to the step plate 21, and a mounting plate 24 which is fixed on the side surfaces of the step plate 21 and the lower vertical plate 22, wherein the mounting plate 24 and the section steel main beam 1 are fixed through bolts; the bottom of the lower vertical plate 22 is provided with a limiting groove 221, the top of the upper vertical plate 23 is provided with a limiting protrusion 231, and two adjacent stair steps 2 are clamped by the limiting groove 221 and the limiting protrusion 231; the part of the mounting plate 24 higher than the steel girder 1 is fixed with the handrail upright 5 through bolts, and the top of the handrail upright 5 is fixed with the handrail 6 through bolts.

The working principle is as follows: confirm the slope of shaped steel girder 1 according to the design requirement, after moving suitable position, pass through the bolt fastening with upper fixed plate 3 and building floor 4, after the installation is accomplished, from the bottom up installs stair step 2 between shaped steel girder 1, carries out the work of fixing to it, later fixes handrail stand 5 to mounting panel 24 on, installs handrail 6 on handrail stand 5 at last, just can put into use. The utility model discloses in mention through the bolt fastening all reserve in advance in the position that corresponds and have the fixed orifices, only need at the installation site with the bolt fastening can.

In above technical scheme, because each part of assembled steel construction stair unit all passes through the bolt fastening, easy dismounting, the work load is little, and is lower to installer's requirement moreover, and work efficiency is high. The section steel main beam 1 and the existing building floor slab 4 are fixedly installed through the upper fixing plate 3, the bearing requirement after installation can be met, and the section steel main beam can be conveniently detached and reused. Stair step 2 is fixed with shaped steel girder 1 on the one hand, and on the other hand passes through spacing recess 221 and spacing protruding 231 block with adjacent stair step 2, and the fixed action is strong, and stability is good. The handrail 6 and the handrail upright post 5 jointly form a protective fence, and further form protection for people going upstairs and downstairs.

When the lower end of the steel girder 1 is in contact with the ground, the lower end of the steel girder is directly abutted against the ground. Further, when applying to multi-storey building, when needing to fix 1 lower extreme of shaped steel girder and 4 surperficial fixings of building floor, in order to satisfy fixed demand, 1 lower extreme bottom fixedly connected with bottom plate 7 of shaped steel girder, bottom plate 7 and 4 surfaces of building floor pass through the bolt fastening.

The steel girder 1 and the floor 4 of the existing building are installed and fixed through an upper fixing plate 3 and a lower fixing plate 7; further, the upper vertical plate 23 of the stair step 2 at the uppermost stage is fixed with the side edge of the building floor slab 4 through bolts, and the installation stability of the assembled steel structure stair unit is guaranteed under the double effects.

Further, an angle steel base 8 is arranged at the bottom of the position where the uppermost stair step 2 is connected with the building floor 4.

Further, the shape of mounting panel 24 is trapezoidal, sets up the trapezoidal hypotenuse of mounting panel 24 according to the slope of shaped steel girder 1, guarantees to make the outward appearance of assembled steel construction stair unit more pleasing to the eye under the fixed prerequisite that stabilizes.

Further, the handrail 6 is of a T-shaped structure, the handrail 6 comprises a cross rod 61 and a fixing piece 62 arranged at the lower end of the cross rod 61, when the handrail is installed, the fixing piece 62 and the handrail upright post 5 are partially overlapped together, the reserved fixing holes are corresponding, and then the handrail is fixed through bolts.

Further, the handrail upright post 5 is vertical to the steel girder 1.

Additionally, the utility model also provides a multilayer steel construction stair. The multi-storey steel structure stair comprises a plurality of assembled steel structure stair units according to the above, a rest platform 9 arranged in the middle of two-storey buildings, and support columns 10 arranged below the rest platform 9.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An assembled steel structural stairway unit, comprising: the stair tread comprises a pair of profile steel main beams and a plurality of mutually connected stair treads arranged on the profile steel main beams, wherein the outer sides of the upper ends of the profile steel main beams are fixedly connected with an upper fixing plate, and the upper fixing plate and the side surface of a building floor slab are fixed through bolts; the stair steps comprise a step plate, a lower vertical plate and an upper vertical plate which are perpendicular to the step plate, and mounting plates fixed on the side faces of the step plate and the lower vertical plate, wherein the mounting plates and the section steel main beams are fixed through bolts; the bottom of the lower vertical plate is provided with a limiting groove, the top of the upper vertical plate is provided with a limiting bulge, and two adjacent stair steps are clamped with the limiting bulge through the limiting groove; the part of the mounting plate, which is higher than the section steel main beam, is fixed with the armrest upright post through bolts, and the top of the armrest upright post is fixed with the armrest through bolts.

2. The assembly type steel structure stairway unit according to claim 1, wherein a lower fixing plate is fixedly connected to the bottom of the lower end of the main beam of the section steel, and the lower fixing plate and the floor surface of the building are fixed through bolts.

3. The assembly type steel structure stairway unit according to claim 1, wherein the upper riser of the stair step of the uppermost step is fixed to a side of a building floor by bolts.

4. The fabricated steel structure stairway unit according to claim 3, wherein an angle steel base is provided at a bottom of a position where the stair step of the uppermost stage is connected to a floor of the building.

5. The fabricated steel structural stairway unit of claim 1 wherein said mounting plate is trapezoidal in shape.

6. The assembly type steel structure stairway unit according to claim 1, wherein the handrail is a T-shaped structure, the handrail includes a cross bar and a fixing piece provided at a lower end of the cross bar, and the fixing piece and the handrail upright are fixed by a bolt.

7. The fabricated steel structural stairway unit of claim 1 wherein said handrail upright is perpendicular to said steel main beam.

8. A stairway of multi-storey steel construction, comprising a plurality of assembled steel construction stairway units according to any one of claims 1 to 7 and a rest platform disposed intermediate two storeys of a building, and support columns disposed below the rest platform.