CN214531596U

CN214531596U - Steel stair and building

Info

Publication number: CN214531596U
Application number: CN202023342332.8U
Authority: CN
Inventors: 龚怡
Original assignee: Suzhou Soochow Architectural Design Institute Co ltd
Current assignee: Suzhou Soochow Architectural Design Institute Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-29
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a steel stair and building, wherein steel stair include steel stair platform and reach the last bench that links up with steel stair platform and lower bench, go up the bench and all include the oblique girder steel of two symmetries down the bench, lean on outer be provided with railing and handrail, two on the oblique girder steel the top surface of oblique girder steel is by lower supreme multistage angle steel, every the apex angle of angle steel just has horizontally top surface, every outwards be provided with the decorative pattern steel sheet on the top surface of angle steel. This scheme is done the stair tread in the top of ladder roof beam to increase as the basis of marking time through setting up the angle steel, the installation of both being convenient for, can compensate the not enough defect of decorative pattern steel sheet rigidity simultaneously, improve structural rigidity, simultaneously, the tip of ladder roof beam can link up with stair platform's lateral part, avoids the problem that stair roof beam both ends occupy the stair platform space, is favorable to guaranteeing the net size of stair bottle, and is more spacious simultaneously when using, more pleasing to the eye.

Description

Steel stair and building

Technical Field

The utility model belongs to the technical field of the building engineering and specifically relates to steel stair and building.

Background

The steel stairs are produced with industrial metal material. The steel stairs have various forms, but the stretching lines of the steel stairs are compared with the surrounding environment space to obtain prosody in a shape.

The structural support system of the steel stair takes a stair steel oblique beam as a main structural component, the stair sections take a step plate as a main component, and the railing form generally adopts an oblique line form parallel to the stair oblique beam.

As shown in fig. 1, usually, the stair tread a is welded between the two side stair beams b, and the top b1 of the stair beam b is higher than the stair tread a, so at the landing c, the lower end of the upper stair beam b occupies a certain landing size l1 to affect the landing net size l2, and the landing c needs to be larger to meet the actual standard requirement.

And the existing steel stairs mostly adopt a welding mode, so that the steel stairs are inconvenient to disassemble and assemble and the follow-up materials are not recycled.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a steel stair in order to solve the above-mentioned problem that exists among the prior art.

The purpose of the utility model is realized through the following technical scheme:

steel stair, including steel stair platform and with the last bench and the lower bench of steel stair platform linking up, go up the bench and all include the oblique girder steel of two symmetries down the bench, lean on outer be provided with railing and handrail on the oblique girder steel, two the top surface of oblique girder steel is by supreme multistage angle steel, every down the apex angle of angle steel is outside just having horizontally top surface, every be provided with the decorative pattern steel sheet on the top surface of angle steel.

Preferably, in the steel stair, the angle steel comprises an L-shaped transverse plate and an L-shaped vertical plate, the length of the angle steel is greater than that of the two inclined steel beams, and the angle steel is welded on the inclined steel beams.

Preferably, in the steel stair, the angle steel comprises L-shaped members respectively arranged on the two inclined steel beams, each L-shaped member comprises a horizontal rod and a vertical rod perpendicular to the horizontal rod, the horizontal rods of the two L-shaped members are connected through a support member, and the top surfaces of the support members are flush with the top surfaces of the horizontal rods.

Preferably, in the steel stair, the ends of the horizontal rods and the vertical rods connected with the oblique steel beams are flush with the top surfaces of the oblique steel beams and are respectively provided with connecting plates attached to the top surfaces of the oblique steel beams, the top plates and the connecting plates of the horizontal rods are provided with coaxial connecting holes, the outer side plates and the connecting plates of the vertical rods are provided with coaxial connecting holes, and the oblique steel beams are provided with holes coaxial with the connecting holes in each connecting plate.

Preferably, in the steel stair, the horizontal rod is positioned above the vertical rod, and the bottom of the horizontal rod and the top of the vertical rod are provided with matched insertion blocks and insertion holes.

Preferably, in the steel stair, the oblique girder steel is the channel-section steel, two the notch of channel-section steel is relative, the handrail is located the outside of oblique girder steel, and with oblique girder steel spiro union.

Preferably, in the steel stair, criss-cross reinforcing ribs are arranged at the bottom of the patterned steel plate.

Preferably, in the steel stair, the pattern steel plate is fixed on the angle steel through foam double faced adhesive tape or nail-free adhesive tape or fixed on the angle steel through welding.

A building comprising a steel staircase according to any of the preceding claims.

The utility model discloses technical scheme's advantage mainly embodies:

this scheme is done the stair tread in the top of ladder roof beam to increase as the basis of marking time through setting up the angle steel, the installation of both being convenient for, can compensate the not enough defect of decorative pattern steel sheet rigidity simultaneously, improve structural rigidity, simultaneously, the tip of ladder roof beam can link up with stair platform's lateral part, avoids the problem that stair roof beam both ends occupy the stair platform space, is favorable to guaranteeing the net size of stair bottle, and is more spacious simultaneously when using, more pleasing to the eye.

The angle steel structure of this scheme adopts the mode of spiro union to be connected with the ladder roof beam, and one does not need large-scale machinery nor circular telegram, convenient construction, and the realization angle steel that can be convenient is retrieved and is recycled.

The embossed steel plate is connected with the angle steel in a splicing mode, the convenience of installation and detachment is improved, and the embossed steel plate is convenient to recycle.

Drawings

FIG. 1 is a schematic diagram of the prior art described in the background of the invention;

fig. 2 is a schematic view of the staircase of the present invention;

FIG. 3 is a partial schematic view of the staircase of the present invention using an angle steel structure;

FIG. 4 is a partial schematic view of the staircase of the present invention using another angle steel structure;

fig. 5 is a front view of the angle iron of the present invention;

fig. 6 is a cross-sectional view of the screw connection structure of the angle steel and the oblique steel beam of the present invention.

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are merely exemplary embodiments for applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention.

In the description of the embodiments, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "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, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

The steel stair disclosed in the present invention is explained below with reference to the accompanying drawings, as shown in fig. 2, it includes steel stair platform 100 and the upper stair section 200 and the lower stair section 300 that the steel stair platform 100 links up, the steel stair can include one the steel stair platform 100, also can include the multilayer the steel stair platform is how long the steel stair platform 100 connects through the stair sections, the number of piles of steel stair platform is selected according to different application scenarios. As shown in fig. 2, the upper step 200 and the lower step 300 have the same structure, and only the structure of the upper step 200 will be described below as an example.

As shown in fig. 3, the upper ladder section includes two symmetrical oblique steel beams 1, and the two oblique steel beams 1 may be channel steel, i-steel or box steel, and are specifically selected according to needs.

As shown in fig. 3, multiple levels of angle steels 2 are arranged on the top surfaces 11 of the two inclined steel beams 1 from bottom to top, the top angle 21 of each angle steel 2 faces outwards and has a horizontal top surface 22, and a pattern steel plate 3 is arranged on the top surface 22 of each angle steel 2. Because the structure that will mark time (angle steel and decorative pattern steel sheet) setting in oblique girder steel top is adopted, consequently, can solve the not enough problem of net size of steel stair platform department, simultaneously when using, it is wider more pleasing to the eye.

The structure of the angle steel 2 can be selected according to different needs, in one embodiment, as shown in fig. 3, the angle steel 2 includes a horizontal plate 23 and a vertical plate 24 which are L-shaped, the lengths of the horizontal plate 23 and the vertical plate are greater than the lengths of the two inclined steel beams 1, and the horizontal plate 23 is welded on the inclined steel beams 1, at this time, the pattern steel plate 3 is arranged at the top of the horizontal plate 23, and at this time, the horizontal plate 23 can effectively support the pattern steel plate 3, so that the defect that the pattern steel plate is insufficient in rigidity is overcome, and the structural rigidity of the tread is ensured.

In another embodiment, as shown in fig. 4 and 5, the angle iron 2 includes L-shaped members 25 respectively disposed on the two inclined steel beams, the L-shaped members 25 include horizontal bars 251 and vertical bars 252 perpendicular to the horizontal bars 251, the horizontal bars 251 of the two L-shaped members are connected by a support member 26, the top surface of the support member 26 is flush with the top surface of the horizontal bars, and the support member 26 may be a beam and is fixed between the two horizontal bars 251 by a screw, in which case, the support member 26 can effectively provide support for the pattern steel plate. Of course, the supporting member 26 may be a reinforced plate or other feasible structure fixed on top of the two horizontal rods 251 in other embodiments.

At this time, the horizontal bar 251 and the vertical bar 252 may be fixed to the oblique steel beam 1 by welding, but the welding mode has low flexibility in assembly and disassembly, and once the stairs need to be disassembled, the disassembly difficulty is not high, and the recycling of materials is not facilitated, so in another mode, the structure of the angle steel 2 may be designed in an assembly mode, specifically as follows:

as shown in fig. 6, the ends of the horizontal bar 251 and the vertical bar 252 connected to the oblique steel beam 1 are flush with the top surface 11 of the oblique steel beam 1, and respectively have

connection plates

254 and 255 attached to the top surface 11 of the oblique steel beam 1, the top plate 256 and the connection plate 254 of the horizontal bar 251 have

coaxial connection holes

257 and 258, the outer plate 259 and the connection plate 255 of the vertical bar 252 have

coaxial connection holes

2510 and 2511, the top surface of the oblique steel beam 1 has coaxial connection holes 12, and the connection between the horizontal bar 251 and the vertical bar 252 and the oblique steel beam can be achieved by bolts 4 and nuts 5 passing through the corresponding connection holes, so that the equipment required for assembly is simpler and easier to implement, and at this time, the oblique steel beam 1 can be made of steel or channel steel to facilitate the operation of locking nuts. In other embodiments, the

connection holes

257 and 2511 of the top plate 256 and the outer plate 259 are not necessary, and the horizontal bar 251 and the vertical bar 252 may be connected to the inclined steel beam 1 by riveting, but a rivet gun is required and the difficulty of disassembly is relatively high.

In addition, the horizontal rods 251 and the vertical rods 252 are fixed at their ends, which are connected by welding, which is also inconvenient for disassembling the horizontal rods 251 and the vertical rods 252, because the horizontal rods 251 and the vertical rods 252 are fixed at their ends during the actual assembly, and therefore, their opposite ends only need to be limited, so that, in a more preferred embodiment, as shown in fig. 6, the horizontal rods 251 are located above the vertical rods and the bottom of the horizontal rods 251 and the top plate of the vertical rods have matching insertion blocks 2512 and insertion holes 2513, thereby effectively limiting the horizontal rods 251 and the vertical rods while ensuring the supporting performance.

Usually, the pattern steel plate 3 is fixed on the angle steel 2 by welding, but this structure obviously has certain inconvenience in subsequent dismantling, so in a more excellent mode, as shown in fig. 6, the pattern steel plate 3 can be fixed on the angle steel by a foam double-faced adhesive tape or a nail-free adhesive tape 6, and assembly and disassembly construction are facilitated by adopting a gluing mode.

In addition, in some embodiments, in order to further increase the rigidity of the patterned steel plate 3, criss-cross reinforcing ribs (not shown in the figure) may be further disposed at the bottom of the patterned steel plate, so as to improve the performance of the patterned steel plate 3 itself.

Finally, in order to improve the safety of the staircase, a handrail and a handrail (not shown in the figure) are arranged on the oblique steel beam 1, the handrail can be made of wood, metal or stone and the like and is fixed at the top of a group of handrails, the handrail is fixed on the oblique steel beam, and the handrail is made of steel and can be welded and fixed. More preferably, the railing spiro union is in write on the girder steel 1, this moment, oblique girder steel 1 is channel-section steel or box-section steel, and when being the channel-section steel, two the notch of channel-section steel is relative, the handrail is located the outside of oblique girder steel 1, and with oblique girder steel spiro union is provided with the through-hole on curb plate and the railing of oblique girder steel promptly, realizes the fixing of railing and oblique girder steel through passing bolt and nut cooperation in the through-hole on railing and the curb plate.

The scheme also discloses a building which comprises the steel stair of the embodiment.

The utility model has a plurality of implementation modes, and all technical schemes formed by adopting equivalent transformation or equivalent transformation all fall within the protection scope of the utility model.

Claims

1. Steel stair, including steel stair platform and with last bench and lower bench that steel stair platform links up, go up the bench and all include the oblique girder steel of two symmetries down the bench, lean on outer be provided with railing and handrail, its characterized in that on the oblique girder steel: two the top surface of oblique girder steel is provided with multistage angle steel from lower to upper, every the apex angle of angle steel is outside and have the horizontally top surface, every be provided with the decorative pattern steel sheet on the top surface of angle steel.

2. The steel staircase of claim 1, wherein: the angle steel comprises an L-shaped transverse plate and an L-shaped vertical plate, the length of the angle steel is greater than that of the two inclined steel beams, and the angle steel is welded on the inclined steel beams.

3. The steel staircase of claim 1, wherein: the angle steel is including setting up respectively two L shape component on the oblique girder steel, L shape component includes the horizon bar and rather than the perpendicular pole of vertically, two connect through a support piece between the horizon bar of L shape component, the top surface of support piece with the top surface parallel and level of horizon bar.

4. The steel staircase of claim 3, wherein: the connecting end parts of the horizontal rods and the vertical rods and the inclined steel beams are flush with the top surfaces of the inclined steel beams and are respectively provided with connecting plates attached to the top surfaces of the inclined steel beams, the top plates and the connecting plates of the horizontal rods are provided with coaxial connecting holes, the outer side plates and the connecting plates of the vertical rods are provided with coaxial connecting holes, and the inclined steel beams are provided with holes coaxial with the connecting holes in the connecting plates.

5. The steel staircase of claim 4, wherein: the horizontal rod is positioned above the vertical rod, and the bottom of the horizontal rod and the top of the vertical rod are provided with an insertion block and an insertion hole which are matched.

6. The steel staircase of claim 3, wherein: the oblique girder steel is the channel-section steel, two the notch of channel-section steel is relative, the handrail is located the outside of oblique girder steel, and with oblique girder steel spiro union.

7. The steel staircase according to any of the claims 1-6, characterized in that: the pattern steel plate is fixed on the angle steel through foam double-faced adhesive tape or nail-free adhesive tape.

8. Building, its characterized in that: comprising a steel staircase according to any of the claims 1-7.