CN216130472U - Exempt from formwork steel concrete combination stair - Google Patents
Exempt from formwork steel concrete combination stair Download PDFInfo
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- CN216130472U CN216130472U CN202122699141.5U CN202122699141U CN216130472U CN 216130472 U CN216130472 U CN 216130472U CN 202122699141 U CN202122699141 U CN 202122699141U CN 216130472 U CN216130472 U CN 216130472U
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Abstract
The utility model relates to a formwork-free steel concrete combined stair which comprises a ladder beam, wherein a platform beam is arranged at a platform area at the top of the ladder beam, a vertical beam is arranged between the ladder beam and the platform beam, the top of the ladder beam is connected with a ladder plate through a positioning bottom die mechanism, and the top of the platform beam is connected with the platform plate through the positioning bottom die mechanism; the positioning bottom die mechanism is installed above the ladder beam and the platform beam and is made of the profiled steel sheet, the supporting plate or the common template, concrete is poured above the positioning ground die mechanism, the ladder plate and the platform plate are formed after the concrete is solidified, the supporting frame does not need to be arranged below the positioning bottom die mechanism, the concrete structure layers of the ladder plate and the platform plate are well connected with the building surface layer, and the ladder beam, the platform beam, the vertical beam, the profiled steel sheet and the supporting plate can be produced in a factory, so that the characteristics of high factory degree, short construction period and low cost can be realized.
Description
Technical Field
The utility model relates to the technical field of stair installation, in particular to a formwork-free steel concrete combined stair.
Background
In the building construction, original concrete stair need the concrete intensity reach design requirement detachable support frame in back, and construction process is complicated like this, and the period is long, and original pure steel structure stair though construction process is simple, the batch production degree is high, the time limit for a project is short, but the expense is high, and steel construction step board and terrace plate and building surface layer connectivity are firm inadequately.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a formwork-free steel concrete combined stair which has the advantages of avoiding mounting and dismounting operations of a support frame and a bottom formwork, being short in construction period and low in cost, and enabling concrete structure layers of a stair board and a platform board to be firmly connected with a building surface layer.
The technical scheme for realizing the purpose is as follows:
the utility model provides a formwork-free steel concrete combined stair which comprises a ladder beam, wherein a platform beam is arranged at a platform area at the top of the ladder beam, a vertical beam is arranged between the ladder beam and the platform beam, the top of the ladder beam is connected with a ladder plate through a positioning bottom die mechanism, the top of the platform beam is connected with the platform plate through the positioning bottom die mechanism, the positioning bottom die mechanism comprises studs, bearing plates and linking frames, the tops of the ladder beam and the platform beam are connected with the bearing plates through the studs, the top of the bearing plates is provided with the linking frames, and the linking frames are respectively positioned inside the platform plate and the ladder plate.
Preferably, the top and the bottom of the engagement frame are respectively provided with a bottom steel bar and an upper steel bar. In order to facilitate increasing the strength of the risers and decks.
Preferably, the ladder beam and the platform beam are I-shaped knots. To avoid the phenomenon of breaking the ladder beam and the platform beam.
Preferably, the vertical beam and the ladder beam, the vertical beam and the platform beam, and the ladder beam and the platform beam are fixed by welding or bolts. In order to facilitate the connection between the vertical beams and the ladder beams, between the vertical beams and the platform beams and between the ladder beams and the platform beams to be firmer.
Preferably, the vertical beam and the top of the ladder beam are also provided with side dies. The phenomenon that concrete poured above the vertical beams and the ladder beams is scattered is avoided.
Preferably, a frame beam is further mounted on one side of the vertical beam and the ladder beam. In order to facilitate the fixing of the vertical beams and the ladder beams.
Preferably, the outer side walls of the ladder beam, the vertical beam and the platform beam are all coated with anticorrosive paint. The ladder beam, the vertical beam and the platform beam are prevented from being rusted and damaged.
The utility model has the beneficial effects that: in the using process, the positioning bottom die mechanism is arranged above the ladder beam and the platform beam and is made of profiled steel plates, supporting plates or common templates, concrete is poured above the positioning ground die mechanism, the ladder plate and the platform plate are formed after the concrete is solidified, a support frame does not need to be arranged below the positioning bottom die mechanism, the concrete structure layers of the ladder plate and the platform plate are well connected with the building surface layer, and the ladder beam, the platform beam, the vertical beam, the profiled steel plates and the supporting plates can be produced in a factory, so that the characteristics of high factory degree, short construction period and low cost are achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a connection structure of the ladder beam and the platform beam of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of a connection structure between a platen and a platen beam according to an embodiment of the present invention;
FIG. 4 is a schematic view of a connection structure between a ladder board and a ladder beam according to an embodiment of the present invention;
FIG. 5 is a schematic view of a connection structure between a platen and a platen beam according to a second embodiment of the present invention;
FIG. 6 is a schematic view of a connection structure between a ladder plate and a ladder beam according to a second embodiment of the present invention;
fig. 7 is a schematic view of a connection structure between a deck plate and a deck beam in the third embodiment of the present invention;
FIG. 8 is a schematic view of a connection structure between a ladder plate and a ladder beam in a third embodiment of the present invention;
description of reference numerals:
1. a ladder beam; 2. erecting a beam; 3. a platform beam; 4. a platform plate; 5. a step plate; 6. a frame beam; 7. positioning a bottom die mechanism; 8. a stud; 9. bottom reinforcing steel bars; 10. a support plate; 11. an upper reinforcing bar; 12. a linking frame; 13. profiled steel sheets; 14. a template; 15. fastening the buckle; 16. an adjusting block; 17. a main keel; 18. the secondary keel.
Detailed Description
Example one
The utility model is further described with reference to the following figures and specific examples.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, a exempt from formwork steel concrete combination stair, including terraced roof beam 1, terraced roof beam 3 is installed to 1 top platform region department of terraced roof beam, install between terraced roof beam 1 and the platform roof beam 3 and erect roof beam 2, 1 top of terraced roof beam is connected with terraced slab 5 through location die block mechanism 7, 3 tops of platform roof beam are connected with landing slab 4 through location die block mechanism 7, location die block mechanism 7 includes peg 8, bearing board 10 and linking frame 12, terraced roof beam 1 and 3 tops of platform roof beam all are connected with bearing board 10 through peg 8, linking frame 12 is installed at the top of bearing board 10, and the concrete has still been pour at the top of bearing board 10.
In this example, the ladder beam 1 and the platform beam 3 are fixed at the use position by the vertical beam 2, the support plate 10 inside the positioning bottom die mechanism 7 is fixed above the ladder beam 1 and the platform beam 3, then concrete is poured above the support plate 10, and the ladder plate 5 and the platform plate 4 are formed after the concrete is solidified, thereby ensuring the formation of the staircase.
Further, as shown in fig. 3 and 4, the engagement frame 12 is provided at the top and bottom thereof with a bottom reinforcement 9 and an upper reinforcement 11, respectively, by which the strength of the step 5 and the platform 4 can be increased.
Further, as shown in fig. 2, the ladder beam 1 and the platform beam 3 are i-steel structures, and the i-steel has good firmness, so that the ladder beam 1 and the platform beam 3 can be prevented from being broken in the using process.
Further, as shown in fig. 2, the vertical beam 2 and the ladder beam 1, the vertical beam 2 and the platform beam 3, and the ladder beam 1 and the platform beam 3 are fixed by welding or bolts, so that the connection between the vertical beam 2 and the ladder beam 1, the connection between the vertical beam 2 and the platform beam 3, and the connection between the ladder beam 1 and the platform beam 3 can be firmer.
Further, as shown in fig. 2, side molds are further installed at the tops of the vertical beams 2 and the ladder beam 1, and the phenomenon that concrete poured above the vertical beams 2 and the ladder beam 1 is scattered can be avoided through blocking of the side molds.
Further, as shown in fig. 1, a frame beam 6 is further installed on one side of the vertical beam 2 and the ladder beam 1, and the vertical beam 2 and the ladder beam 1 can be supported through the frame beam 6, so that the vertical beam 2 and the ladder beam 1 are more firmly fixed.
Furthermore, as shown in fig. 2, the outer side walls of the ladder beam 1, the vertical beam 2 and the platform beam 3 are all coated with anti-corrosion paint, and the ladder beam 1, the vertical beam 2 and the platform beam 3 can be prevented from being corroded and damaged by the anti-corrosion paint.
Example two
Referring to fig. 1, fig. 2, fig. 5 and fig. 6, a exempt from formwork steel concrete combination stair, including terraced roof beam 1, terraced roof beam 3 is installed to 1 top platform region department of terraced roof beam, install between terraced roof beam 1 and the platform roof beam 3 and erect roof beam 2, 1 top of terraced roof beam is connected with terraced slab 5 through location die block mechanism 7, 3 tops of platform roof beam are connected with platform board 4 through location die block mechanism 7, location die block mechanism 7 includes peg 8 and profiled sheet 13, terraced roof beam 1 and 3 tops of platform roof beam all are connected with profiled sheet 13 through peg 8, the concrete has been pour at the top of profiled sheet 13.
In this example, the ladder beam 1 and the platform beam 3 are fixed at the use position by the vertical beam 2, the profiled steel sheet 13 inside the positioning bottom die mechanism 7 is fixed above the ladder beam 1 and the platform beam 3, then concrete is poured above the profiled steel sheet 13, and the ladder plate 5 and the platform plate 4 are formed after the concrete is solidified, thereby ensuring the formation of the staircase.
Further, as shown in fig. 5 and 6, the profiled steel sheet 13 is provided at the top and bottom thereof with bottom and upper reinforcing bars 9 and 11, respectively, by which the strength of the step 5 and the platform 4 can be increased when concrete is poured.
Further, as shown in fig. 2, the ladder beam 1 and the platform beam 3 are i-steel structures, and the i-steel has good firmness, so that the ladder beam 1 and the platform beam 3 can be prevented from being broken in the using process.
Further, as shown in fig. 2, the vertical beam 2 and the ladder beam 1, the vertical beam 2 and the platform beam 3, and the ladder beam 1 and the platform beam 3 are fixed by welding or bolts, so that the connection between the vertical beam 2 and the ladder beam 1, the connection between the vertical beam 2 and the platform beam 3, and the connection between the ladder beam 1 and the platform beam 3 can be firmer.
Further, as shown in fig. 2, side molds are further installed at the tops of the vertical beams 2 and the ladder beam 1, and the phenomenon that concrete poured above the vertical beams 2 and the ladder beam 1 is scattered can be avoided through blocking of the side molds.
Further, as shown in fig. 1, a frame beam 6 is further installed on one side of the vertical beam 2 and the ladder beam 1, and the vertical beam 2 and the ladder beam 1 can be supported through the frame beam 6, so that the vertical beam 2 and the ladder beam 1 are more firmly fixed.
Furthermore, as shown in fig. 2, the outer side walls of the ladder beam 1, the vertical beam 2 and the platform beam 3 are all coated with anti-corrosion paint, and the ladder beam 1, the vertical beam 2 and the platform beam 3 can be prevented from being corroded and damaged by the anti-corrosion paint.
EXAMPLE III
Referring to fig. 1, fig. 2, fig. 7 and fig. 8, a formwork-free steel concrete combined stair comprises a ladder beam 1, a platform beam 3 is installed at a platform area at the top of the ladder beam 1, a vertical beam 2 is installed between the ladder beam 1 and the platform beam 3, a ladder plate 5 is connected to the top of the ladder beam 1 through a positioning bottom die mechanism 7, a platform plate 4 is connected to the top of the platform beam 3 through the positioning bottom die mechanism 7, the positioning bottom die mechanism 7 comprises a formwork 14, a fastening buckle 15, an adjusting block 16, a main keel 17 and a secondary keel 18, the main keel 17 is installed at the tops of the ladder beam 1 and the platform beam 3 through the fastening buckle 15 and the adjusting block 16, the secondary keel 18 is installed at the top of the main keel 17, the formwork 14 is installed at the top of the secondary keel 18, and concrete is poured above the formwork 14.
In this example, the ladder beam 1 and the platform beam 3 are fixed at the use position through the vertical beam 2, the main keel 17 inside the positioning bottom die mechanism 7 is fixed above the ladder beam 1 and the platform beam 3 through the fastening buckle 15 and the adjusting block 16, the secondary keel 18 is installed on the top of the main keel 17, the template 14 is installed on the top of the secondary keel 18, finally, concrete is poured above the template 14, the ladder board 5 and the platform board 4 are formed after the concrete is solidified, and therefore, the formation of the staircase can be guaranteed.
Further, as shown in fig. 7 and 8, the formwork 14 is provided at the top and bottom thereof with bottom rebars 9 and upper rebars 11, respectively, by which the strength of the riser 5 and the slab 4 can be increased when the concrete is set.
Further, as shown in fig. 2, the ladder beam 1 and the platform beam 3 are i-steel structures, and the i-steel has good firmness, so that the ladder beam 1 and the platform beam 3 can be prevented from being broken in the using process.
Further, as shown in fig. 2, the vertical beam 2 and the ladder beam 1, the vertical beam 2 and the platform beam 3, and the ladder beam 1 and the platform beam 3 are fixed by welding or bolts, so that the connection between the vertical beam 2 and the ladder beam 1, the connection between the vertical beam 2 and the platform beam 3, and the connection between the ladder beam 1 and the platform beam 3 can be firmer.
Further, as shown in fig. 2, side molds are further installed at the tops of the vertical beams 2 and the ladder beam 1, and the phenomenon that concrete poured above the vertical beams 2 and the ladder beam 1 is scattered can be avoided through blocking of the side molds.
Further, as shown in fig. 1, a frame beam 6 is further installed on one side of the vertical beam 2 and the ladder beam 1, and the vertical beam 2 and the ladder beam 1 can be supported through the frame beam 6, so that the vertical beam 2 and the ladder beam 1 are more firmly fixed.
Furthermore, as shown in fig. 2, the outer side walls of the ladder beam 1, the vertical beam 2 and the platform beam 3 are all coated with anti-corrosion paint, and the ladder beam 1, the vertical beam 2 and the platform beam 3 can be prevented from being corroded and damaged by the anti-corrosion paint.
The working principle of the utility model is as follows: in the using process of the stair, the stair girders 1, the platform girders 3, the vertical girders 2, the profiled steel plates 13 and the bearing plates 10 are prefabricated and produced in a factory, when the stair needs to be assembled and installed, the stair girders 1 and the platform girders 3 are fixed at the using positions through the vertical girders 2, then the bearing plates 10, the profiled steel plates 13 or the formworks 14 positioned in the ground formwork mechanism are fixed above the stair girders 1 and the platform girders 3, finally the concrete is poured above the bearing plates 10, the profiled steel plates 13 or the formworks 14, and the stair plates 5 or the platform plates 4 are formed after the concrete is solidified.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the utility model is to be determined by the appended claims.
Claims (7)
1. The utility model provides an exempt from formwork steel concrete combination stair, a serial communication port, including the ladder roof beam, the platform roof beam is installed to the regional department of ladder roof beam top platform, the ladder roof beam with install between the platform roof beam and erect the roof beam, ladder roof beam top is connected with the halfpace through location die block mechanism, platform roof beam top is connected with the landing slab through location die block mechanism, location die block mechanism includes peg, bearing board and links up the frame, the ladder roof beam with platform roof beam top all is connected with the bearing board through the peg, linking frame is installed at the top of bearing board, just linking frame is located respectively the landing slab with the inside of ladder board.
2. The form-free steel reinforced concrete stair of claim 1, wherein the top and bottom of the engagement frame are respectively provided with a bottom steel bar and an upper steel bar.
3. The free-form steel reinforced concrete stair of claim 1, wherein the ladder beam and the platform beam are I-steel structures.
4. The framework-free steel reinforced concrete combined stair is characterized in that the vertical beams and the ladder beams, the vertical beams and the platform beams, and the ladder beams and the platform beams are fixed through welding or bolts.
5. The form-free steel reinforced concrete combined stair is characterized in that side forms are further mounted at the tops of the vertical beams and the ladder beams.
6. The free-form steel reinforced concrete stair of claim 1, wherein frame beams are further installed on one side of the vertical beams and the ladder beams.
7. The framework-free steel reinforced concrete combined stair is characterized in that the outer side walls of the ladder beam, the vertical beam and the platform beam are all coated with anticorrosive paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122699141.5U CN216130472U (en) | 2021-11-05 | 2021-11-05 | Exempt from formwork steel concrete combination stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122699141.5U CN216130472U (en) | 2021-11-05 | 2021-11-05 | Exempt from formwork steel concrete combination stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216130472U true CN216130472U (en) | 2022-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122699141.5U Active CN216130472U (en) | 2021-11-05 | 2021-11-05 | Exempt from formwork steel concrete combination stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216130472U (en) |
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2021
- 2021-11-05 CN CN202122699141.5U patent/CN216130472U/en active Active
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