CN210369630U - Steel-concrete combined stair structure - Google Patents

Abstract

The utility model relates to a steel-concrete combined stair structure, which comprises a steel oblique beam, a treading vertical plate, a pedal, a concrete reinforcement and a concrete layer; the steel oblique beams are obliquely arranged on two sides and are parallel to each other; the pedal vertical plate is welded on the inner side of the steel oblique beam; in the adjacent stepping vertical plates, the bottoms of the upper stepping vertical plates are flush with the tops of the lower stepping vertical plates; the pedals are horizontally supported on the pedal plates which are adjacent up and down; the concrete reinforcing steel bars are laid at the lower part between the two steel oblique beams; the concrete layer is poured below the pedal and wraps the concrete reinforcing steel bars. The utility model discloses a steel-concrete combination stair structure is suitable for steel construction system, convenient construction, easily assembly.

Description

Steel-concrete combined stair structure

[ technical field ] A method for producing a semiconductor device

The utility model relates to a stair structure, concretely relates to steel-concrete combination stair structure belongs to building engineering technical field.

[ background of the invention ]

In the traditional building, most of work needs to be finished on a construction site, and the problems of long construction period, serious environmental pollution, large stacking field, shortage of constructors and the like become barriers for inhibiting the progress of the building industry. The stair is as important vertical traffic, and in the work progress of traditional concrete project, need pass through formwork, ligature reinforcing bar, pouring concrete, form removal to before the form removal, can not utilize it to carry out vertical transportation.

With the transformation from the traditional building to the industrialized building, under the big background of the vigorous development of the assembled building in China, the prefabricated assembled staircases are also adopted in a large number of concrete assembled projects, and the prefabricated assembly is realized to a certain extent.

However, for the stairs in the steel structure fabricated building, the steel stair tread plate generally adopts a patterned steel plate, the bottom surface of the patterned steel plate needs to be brushed with fireproof paint, meanwhile, decoration coating treatment is needed for the appearance attractiveness, and post treatment is relatively troublesome.

Therefore, in order to solve the above technical problems, there is a need to provide an innovative steel-concrete combined stair structure to overcome the above-mentioned drawbacks of the prior art.

[ Utility model ] content

In order to solve the above problems, an object of the present invention is to provide a steel-concrete combined stair structure, which is suitable for steel structure system, convenient for construction and easy for assembly.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a steel-concrete combined stair structure comprises a steel oblique beam, a stepping vertical plate, a pedal, concrete steel bars and a concrete layer; the steel oblique beams are obliquely arranged on two sides and are parallel to each other; the pedal vertical plate is welded on the inner side of the steel oblique beam; in the adjacent stepping vertical plates, the bottoms of the upper stepping vertical plates are flush with the tops of the lower stepping vertical plates; the pedals are horizontally supported on the pedal plates which are adjacent up and down; the concrete reinforcing steel bars are laid at the lower part between the two steel oblique beams; the concrete layer is poured below the pedal and wraps the concrete reinforcing steel bars.

The utility model discloses a steel-concrete combination stair structure further sets up to: the steel oblique beam is standardized section steel, and is specifically H-shaped steel.

The utility model discloses a steel-concrete combination stair structure further sets up to: the pedal plate is L-shaped and comprises a vertical plate and a transverse plate which are integrally formed; in the adjacent riser of stepping on, step on the diaphragm upper surface of riser and step on the riser top parallel and level of riser down.

The utility model discloses a steel-concrete combination stair structure further sets up to: the bottom of footboard is equipped with the location nail, location nail butt in riser one side.

The utility model discloses a steel-concrete combination stair structure further sets up to: the pedal is specifically a steel plate or a wood plate.

The utility model discloses a steel-concrete combination stair structure still sets up to: and the concrete reinforcing steel bars are welded on the oblique steel beams.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a steel member (steel sloping, step on the riser) in the steel-concrete combination stair structure is only as a part of template when cast-in-place, does not consider the atress, and the outsourcing steel can unnecessary fire prevention processing, and is little to the influence of pleasing to the eye problem, can unnecessary decoration processing.

2. The utility model discloses a steel-concrete combination stair structure is steel stair in the construction stage, satisfies the construction needs, only considers reinforced concrete in use stage intensity and basic rigidity simultaneously, and the steel member then only is decorative outsourcing, makes things convenient for the construction greatly, reduces the construction cycle on the scene in a large number.

3. The utility model discloses a steel-concrete combination stair structure is fit for steel construction system, convenient construction, easily assembly.

[ description of the drawings ]

Fig. 1 is a schematic view of the steel structure of the steel-concrete composite staircase structure according to the present invention.

Fig. 2 is a schematic view of the steel-concrete combined stair structure of the present invention after the lower template is supported.

Fig. 3 is a schematic view of the steel-concrete composite staircase structure according to the present invention after concrete is poured.

[ detailed description ] embodiments

Referring to the attached drawings 1 to 3 in the specification, the present invention relates to a steel-concrete combined stair structure, which is composed of a steel inclined beam 1, a stepping plate 2, a tread 3, a concrete reinforcement 4, a concrete layer 5, etc.

Wherein, the steel sloping 1 is obliquely arranged on two sides and is parallel to each other. In the present embodiment, the steel stringer 1 is a standardized section steel, specifically an H-section steel, which can be used as a stringer of a building and also as a side template of a staircase.

The stepping vertical plates 2 are welded on the inner sides of the steel oblique beams 1, and the stepping vertical plates 2 on the two steel oblique beams 1 are arranged correspondingly. The step-up plate 2 is L-shaped and comprises a vertical plate 21 and a transverse plate 22 which are integrally formed. In the adjacent riser 2 of stepping on, the bottom of stepping on riser 2 and the top parallel and level of stepping on riser 2 down, the diaphragm 22 upper surface of stepping on the riser promptly and the riser 21 top parallel and level of stepping on the riser down to guarantee that footboard 3 lays the level.

The pedals 3 are horizontally supported on the pedal plates 2 which are adjacent up and down. The pedal 3 is specifically a steel plate or a wood plate. Furthermore, the bottom of the pedal 3 is provided with a positioning nail 6, and the positioning nail 6 abuts against one side of the vertical plate 21, so that the pedal 3 is prevented from shifting.

And the concrete reinforcing steel bars 4 are laid at the lower part between the two oblique steel beams 1 and are welded with the oblique steel beams 1.

And the concrete layer 5 is poured below the pedal 3 and between the two steel oblique beams 1 and wraps the concrete reinforcing steel bars 4. When the concrete layer 5 is poured, the lower template 7 needs to be supported at the bottoms of the steel oblique beams 1 and the concrete reinforcing steel bars 4.

The utility model discloses a construction method of steel-concrete combination stair structure is as follows:

1) an L-shaped pedal plate 2 is welded on the inner side of the steel oblique beam 1;

2) concrete reinforcing steel bars 4 are laid on the lower parts of the oblique steel beams 1;

3) a pedal 3 is laid on the treading plate 2 and is positioned by a positioning nail 6;

4) hanging a lower template 7 by using the steel oblique beams 1 at two sides as templates of the cast-in-place reinforced concrete bench;

5) and pouring concrete, and then curing to finally form the steel-concrete combined stair.

The utility model discloses a steel member (steel sloping 1, step on riser 2) in the steel-concrete combination stair structure is only as a part of template when cast-in-place, does not consider the atress, so can not needn't prevent fire and handle, and it is little to the influence of pleasing to the eye problem, can not needn't decorate and handle.

The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.

Claims (6)

1. A steel-concrete combination stair structure which is characterized in that: the device comprises a steel oblique beam, a stepping vertical plate, a pedal, a concrete reinforcement and a concrete layer; the steel oblique beams are obliquely arranged on two sides and are parallel to each other; the pedal vertical plate is welded on the inner side of the steel oblique beam; in the adjacent stepping vertical plates, the bottoms of the upper stepping vertical plates are flush with the tops of the lower stepping vertical plates; the pedals are horizontally supported on the pedal plates which are adjacent up and down; the concrete reinforcing steel bars are laid at the lower part between the two steel oblique beams; the concrete layer is poured below the pedal and wraps the concrete reinforcing steel bars.

2. The steel-concrete composite stair structure of claim 1, wherein: the steel oblique beam is standardized section steel, and is specifically H-shaped steel.

3. The steel-concrete composite stair structure of claim 1, wherein: the pedal plate is L-shaped and comprises a vertical plate and a transverse plate which are integrally formed; in the adjacent riser of stepping on, step on the diaphragm upper surface of riser and step on the riser top parallel and level of riser down.

4. The steel-concrete composite stair structure of claim 3, wherein: the bottom of footboard is equipped with the location nail, location nail butt in riser one side.

5. The steel-concrete composite stair structure of claim 3, wherein: the pedal is specifically a steel plate or a wood plate.

6. The steel-concrete composite stair structure of claim 3, wherein: and the concrete reinforcing steel bars are welded on the oblique steel beams.

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