CN212176358U - Energy-concerving and environment-protective type concrete prefabricated staircase - Google Patents
Energy-concerving and environment-protective type concrete prefabricated staircase Download PDFInfo
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- CN212176358U CN212176358U CN201922355844.9U CN201922355844U CN212176358U CN 212176358 U CN212176358 U CN 212176358U CN 201922355844 U CN201922355844 U CN 201922355844U CN 212176358 U CN212176358 U CN 212176358U
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Abstract
An energy-saving environment-friendly concrete prefabricated staircase comprises an upper prefabricated staircase landing slab, a lower prefabricated staircase landing slab, a prefabricated staircase main body and stair steps, wherein the prefabricated staircase main body comprises two side beam reinforcing steel bars and a plurality of groups of cross beam stirrups, and the two side beam reinforcing steel bars are distributed vertically and are transversely arranged on the outer sides of the four side beam reinforcing steel bars on two sides of the prefabricated staircase main body from top to bottom in sequence; stair are marked time including the support bar, the location stirrup, the connector stirrup, the both sides of support bar are the setting of upwards 90 degrees buckling, make the support bar have horizontal end and vertical end, the support bar sets up on the crossbeam stirrup from top to bottom in proper order, the department of buckling of support bar places between two crossbeam stirrups, the location stirrup sets up the outside at the department of buckling of support bar both sides and two curb girder reinforcing bars, the horizontal end is placed on adjacent support bar vertical end, fix through the connector stirrup. The stability of the stair step is increased, and the shear strength of the stair step is also improved.
Description
Technical Field
The utility model belongs to the technical field of the construction, concretely relates to energy-concerving and environment-protective type precast concrete stair.
Background
The stair is an important structural member in the building, and the stair in traditional building mostly adopts construction site cast in situ concrete stair, need first formwork, lay the reinforcing bar when the construction, then cast in situ concrete construction, because the stair bench is the irregular shape of slope, the degree of difficulty is great when on-the-spot concrete placement, and the easy roughness unevenness in surface after the concrete placement needs the surface course of plastering just can make level and find the accuracy, and manufacturing cost is higher. Along with the continuous development of building technology, the prefabricated stair boards are widely used in the building field, have the characteristics of low production cost, high construction speed and the like, but also have the advantages of simple structure, low overall structural strength, poor earthquake resistance and easy crack generation after a long time, so that potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model discloses an energy-concerving and environment-protective type concrete prefabricated staircase is disclosed.
The specific technical scheme is as follows:
an energy-saving environment-friendly concrete prefabricated staircase comprises an upper prefabricated staircase landing slab, a lower prefabricated staircase landing slab, a prefabricated staircase main body and stair steps, wherein the upper prefabricated staircase landing slab and the lower prefabricated staircase landing slab are connected through the prefabricated staircase main body, the prefabricated staircase main body comprises side beam reinforcing steel bars and cross beam stirrups, the side beam reinforcing steel bars are divided into two groups and are respectively arranged at two sides in the prefabricated staircase main body, the side beam reinforcing steel bars are distributed up and down, the side beam reinforcing steel bars are of a Z-shaped structure, the upper ends and the lower ends of the side beam reinforcing steel bars are respectively penetrated into the upper prefabricated staircase landing slab and the lower prefabricated staircase landing slab, the cross beam stirrups are divided into a plurality of groups and are respectively transversely arranged at the outer sides of the four side beam reinforcing steel bars at two sides of the prefabricated staircase main body from top to bottom, and the joints of the side beam reinforcing steel bars and the cross beam, the number of each group of beam stirrups is two, and a space is reserved between the two beam stirrups; stair are marked time including support reinforcement, location stirrup, coupling stirrup, the support reinforcement is the rectangle frame structure, and the support reinforcement sets up for the level, and the both sides of support reinforcement are the 90 degrees settings of buckling that make progress and are L shape structure for the support reinforcement has horizontal end and vertical end, and the quantity of support reinforcement is a plurality of and top-down sets up on a plurality of crossbeam stirrups in proper order, and the department of buckling of support reinforcement places between two crossbeam stirrups in every group crossbeam stirrup, the location stirrup sets up the outside at the department of buckling of support reinforcement both sides and two curb girder reinforcing bars, makes the support reinforcement both sides fix on the curb girder reinforcing bar, and the horizontal end of support reinforcement is placed on the vertical end of adjacent support reinforcement, and is through a plurality ofly between two adjacent support reinforcements the coupling stirrup carries out fixed connection.
Furthermore, the width of the supporting steel bars is slightly smaller than the distance between the two side beam steel bars on two sides of the concrete.
Furthermore, the length of the vertical end of the supporting steel bar is less than that of the horizontal end of the supporting steel bar.
Furthermore, wherein the length of a supporting steel bar located at the lowermost end of the beam stirrup is greater than the lengths of other supporting steel bars, and the horizontal end of the supporting steel bar penetrates into the lower prefabricated stair platform plate and is bent downwards by 90 degrees, and is of a Z-shaped structure.
Furthermore, the distance between each group of beam stirrups is consistent.
Furthermore, the supporting steel bars are connected end to end in a welding mode to form a rectangular frame structure.
The utility model has the advantages that:
the utility model discloses a plurality of support bars all fix a position between two crossbeam stirrups through the location stirrup during the stair are marked time, and the one end of support bar horizontal end supports through the crossbeam stirrup, the other end of support bar horizontal end supports through the perpendicular of adjacent support bar and fixes through connecting the stirrup, thereby the stability of the stair of increasing are marked time, make the stair mark time have shock resistance, the shear strength that the stair were marked time has also been improved simultaneously, the security of precast concrete stair has been improved greatly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the utility model discloses well supporting reinforcement's perspective view.
Description of the reference numerals
Go up prefabricated landing slab 1, prefabricated landing slab 2 down, prefabricated stair main part 3, curb girder reinforcing bar 31, crossbeam stirrup 32, stair step 4, support bar 41, horizontal end 411, vertical end 412, location stirrup 42, connect stirrup 43.
Detailed Description
For making the technical scheme of the utility model clear more clearly and definitely, it is right to combine the drawing below the utility model discloses further describe, any is right the utility model discloses technical scheme's technical characteristic carries out the scheme that equivalent replacement and conventional reasoning reachs and all falls into the utility model discloses protection scope. The utility model discloses in the fixed connection who mentions, fixed setting is the general connected mode among the mechanical field, and welding, bolt and nut are connected and the screw connection is all can.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention and for simplicity of description, and do not indicate or imply that the device or element 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.
An energy-saving environment-friendly concrete prefabricated staircase comprises an upper prefabricated staircase landing slab, a lower prefabricated staircase landing slab, a prefabricated staircase main body and stair steps, wherein the upper prefabricated staircase landing slab and the lower prefabricated staircase landing slab are connected through the prefabricated staircase main body, the prefabricated staircase main body comprises side beam reinforcing steel bars and cross beam stirrups, the side beam reinforcing steel bars are divided into two groups and are respectively arranged at two sides in the prefabricated staircase main body, the side beam reinforcing steel bars are distributed up and down, the side beam reinforcing steel bars are of a Z-shaped structure, the upper ends and the lower ends of the side beam reinforcing steel bars are respectively penetrated into the upper prefabricated staircase landing slab and the lower prefabricated staircase landing slab, the cross beam stirrups are divided into a plurality of groups and are respectively transversely arranged at the outer sides of the four side beam reinforcing steel bars at two sides of the prefabricated staircase main body from top to bottom, the sides of the prefabricated staircase main body, and the joints of the side beam, the number of each group of beam stirrups is two, and a space is reserved between the two beam stirrups; stair are marked time including support reinforcement, location stirrup, coupling stirrup, the support reinforcement is the rectangle frame structure, and the support reinforcement sets up for the level, and the both sides of support reinforcement are the 90 degrees settings of buckling that make progress and are L shape structure for the support reinforcement has horizontal end and vertical end, and the quantity of support reinforcement is a plurality of and top-down sets up on a plurality of crossbeam stirrups in proper order, and the department of buckling of support reinforcement places between two crossbeam stirrups in every group crossbeam stirrup, the location stirrup sets up the outside at the department of buckling of support reinforcement both sides and two curb girder reinforcing bars, makes the support reinforcement both sides fix on the curb girder reinforcing bar, and the horizontal end of support reinforcement is placed on the vertical end of adjacent support reinforcement, and is through a plurality ofly between two adjacent support reinforcements the coupling stirrup carries out fixed connection. And the prefabricated stair main body and the stair steps are formed by pouring concrete.
Furthermore, the width of the supporting steel bars is slightly smaller than the distance between the two side beam steel bars on two sides of the concrete.
Furthermore, the length of the vertical end of the supporting steel bar is less than that of the horizontal end of the supporting steel bar.
Further, wherein be located the length of a supporting reinforcement of crossbeam stirrup lowermost end is greater than the length of other supporting reinforcement, and the horizontal end of this supporting reinforcement penetrates in the prefabricated landing slab down and downward 90 degrees buckle settings to be Z type structure, thereby increase prefabricated landing slab's intensity.
Furthermore, the distance between each group of beam stirrups is consistent.
Furthermore, the supporting steel bars are connected end to end in a welding mode to form a rectangular frame structure.
The utility model has the advantages that:
the utility model discloses a plurality of support bars all fix a position between two crossbeam stirrups through the location stirrup during the stair are marked time, and the one end of support bar horizontal end supports through the crossbeam stirrup, the other end of support bar horizontal end supports through the perpendicular of adjacent support bar and fixes through connecting the stirrup, thereby the stability of the stair of increasing are marked time, make the stair mark time have shock resistance, the shear strength that the stair were marked time has also been improved simultaneously, the security of precast concrete stair has been improved greatly.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. An energy-saving environment-friendly concrete prefabricated staircase comprises an upper prefabricated staircase landing slab, a lower prefabricated staircase landing slab, a prefabricated staircase main body and stair steps, wherein the upper prefabricated staircase landing slab and the lower prefabricated staircase landing slab are connected through the prefabricated staircase main body, the prefabricated staircase main body comprises side beam reinforcing steel bars and cross beam stirrups, the side beam reinforcing steel bars are divided into two groups and are respectively arranged at two sides in the prefabricated staircase main body, the side beam reinforcing steel bars of each group are two and are distributed up and down, the side beam reinforcing steel bars are of a Z-shaped structure, the upper ends and the lower ends of the side beam reinforcing steel bars are respectively penetrated into the upper prefabricated staircase landing slab and the lower prefabricated staircase landing slab, the energy-saving environment-friendly concrete prefabricated staircase is characterized in that the cross beam stirrups are divided into a plurality of groups and are respectively transversely arranged at the outer sides of the four side beam reinforcing steel bars at two sides of the prefabricated staircase main body from top to, the number of each group of beam stirrups is two, and a space is reserved between the two beam stirrups; stair are marked time including support reinforcement, location stirrup, coupling stirrup, the support reinforcement is the rectangle frame structure, and the support reinforcement sets up for the level, and the both sides of support reinforcement are the 90 degrees settings of buckling that make progress and are L shape structure for the support reinforcement has horizontal end and vertical end, and the quantity of support reinforcement is a plurality of and top-down sets up on a plurality of crossbeam stirrups in proper order, and the department of buckling of support reinforcement places between two crossbeam stirrups in every group crossbeam stirrup, the location stirrup sets up the outside at the department of buckling of support reinforcement both sides and two curb girder reinforcing bars, makes the support reinforcement both sides fix on the curb girder reinforcing bar, and the horizontal end of support reinforcement is placed on the vertical end of adjacent support reinforcement, and is through a plurality ofly between two adjacent support reinforcements the coupling stirrup carries out fixed connection.
2. An energy-saving environment-friendly concrete precast stair as claimed in claim 1, wherein the width of said support bars is slightly smaller than the distance between two side beam bars at both sides of the concrete.
3. An energy-saving environment-friendly concrete precast stair as claimed in claim 1, wherein the length of the vertical end of the support reinforcement is smaller than the length of the horizontal end of the support reinforcement.
4. An energy-saving and environment-friendly concrete precast stair as claimed in claim 1, wherein a length of a support bar located at the lowermost end of said beam stirrup is greater than lengths of other support bars, and a horizontal end of the support bar penetrates into said lower precast stair platform plate and is bent downward by 90 degrees, and is in a Z-shaped structure.
5. An energy-saving environment-friendly concrete prefabricated staircase as claimed in claim 1, wherein the space between the stirrups of each group of the cross beams is consistent.
6. An energy-saving environment-friendly concrete precast stair as claimed in claim 1, wherein said support bars are connected end to end by welding to form a rectangular frame structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922355844.9U CN212176358U (en) | 2019-12-25 | 2019-12-25 | Energy-concerving and environment-protective type concrete prefabricated staircase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922355844.9U CN212176358U (en) | 2019-12-25 | 2019-12-25 | Energy-concerving and environment-protective type concrete prefabricated staircase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212176358U true CN212176358U (en) | 2020-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922355844.9U Active CN212176358U (en) | 2019-12-25 | 2019-12-25 | Energy-concerving and environment-protective type concrete prefabricated staircase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212176358U (en) |
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2019
- 2019-12-25 CN CN201922355844.9U patent/CN212176358U/en active Active
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