CN220414855U - Plate type stair formwork structure - Google Patents
Plate type stair formwork structure Download PDFInfo
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- CN220414855U CN220414855U CN202321842084.4U CN202321842084U CN220414855U CN 220414855 U CN220414855 U CN 220414855U CN 202321842084 U CN202321842084 U CN 202321842084U CN 220414855 U CN220414855 U CN 220414855U
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- steel bar
- transverse distribution
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- layer transverse
- distribution ribs
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- 238000009415 formwork Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 68
- 239000010959 steel Substances 0.000 claims abstract description 68
- 238000000034 method Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 11
- 238000009417 prefabrication Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 16
- 230000002787 reinforcement Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a plate-type stair formwork structure, wherein a bottom die is a prefabricated building carrier plate consisting of a bottom die plate and a steel bar truss; the steel bar truss is arranged on the upper side of the bottom template; the steel bar truss is positioned below the step shape of the side die; chords of the steel bar trusses are arranged in parallel with the span direction of the stairs; the upper layer transverse distribution ribs and the lower layer transverse distribution ribs which extend along the width direction of the stairs are also arranged; the upper layer transverse distribution ribs are bound and fixed with the upper chord members of the steel bar trusses; the lower layer transverse distribution ribs are bound and fixed with the lower chords of the steel bar trusses; the upper layer transverse distribution ribs and the lower layer transverse distribution ribs are arranged at equal intervals along the span direction of the stairs; two ends of the side mould are supported on the upper platform beam and the lower platform beam, and the lower side of the side mould is connected with the bottom mould plate; according to the scheme, the steel bar truss floor support plate used for roof construction in traditional construction is used in a stair formwork, so that the prefabrication level of the stair is improved; the strength of the building support steel bar truss is far higher than that of the traditional embedded bars which are arranged transversely and longitudinally, so that the working quality can be ensured, and the engineering cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of stair construction, and particularly relates to a plate type stair formwork structure.
Background
In high-rise steel structures, stairs occupy a relatively important part. The traditional stairway adopts a steel structure, the cost is relatively high, the rigidity is relatively low, and the cast-in-place concrete stairway has strong rigidity, but needs to prop up templates and tie up reinforcing steel bars on site during construction, and the cast-in-place concrete is cured for a period of time, so that the outer template is removed. The formwork support workload is large and the speed is extremely slow. In modern buildings, standard buildings are mostly standard interlayer structures, and the sizes of the ladder sections are basically consistent, so that a good space is provided for realizing the prefabricated stairway.
Whether cast-in-situ or prefabricated, a large number of steel bars are needed to be pre-buried in the concrete stairway, and the arrangement amount of the steel bars is very large, so that the manufacturing of the stairway still needs to be further optimized.
Disclosure of Invention
The utility model provides a formwork structure for converting a building support plate into a stair formwork, which aims to solve the problem that the arrangement of cast-in-situ plate type stair reinforcement consumes long time.
The utility model solves the problems, and adopts the following technical scheme:
the beam type stair formwork structure comprises a bottom die, wherein side dies are arranged on two sides of the bottom die, and the upper side of each side die is in a step shape customized according to the width and height of a stair tread; side kickplates are arranged on the side surfaces of the steps of the side dies on the two sides; the upper end of the bottom die is fixed with the upper platform beam, and the lower end is fixed with the lower platform beam; the bottom die is a prefabricated floor support plate consisting of a bottom die plate and a steel bar truss; the steel bar truss is arranged on the upper side of the bottom template; the steel bar truss is positioned below the step shape of the side die; chords of the steel bar trusses are arranged in parallel with the span direction of the stairs; the upper layer transverse distribution ribs and the lower layer transverse distribution ribs which extend along the width direction of the stairs are also arranged; the upper layer transverse distribution ribs are bound and fixed with the upper chord members of the steel bar trusses; the lower layer transverse distribution ribs are bound and fixed with the lower chords of the steel bar trusses; the upper layer transverse distribution ribs and the lower layer transverse distribution ribs are arranged at equal intervals along the span direction of the stairs; the two ends of the side mould are supported on the upper platform beam and the lower platform beam, and the lower side of the side mould is connected with the bottom mould plate.
Compared with the prior art, the utility model adopting the technical scheme has the beneficial effects that:
according to the utility model, the steel bar truss floor support plate used for roof construction in the traditional construction is used in the stair formwork, so that the prefabrication level of the stair is improved; according to the formwork structure provided by the utility model, the requirement of stair reinforcement can be met only by adding a small amount of reinforcement on the truss reinforcement basis, so that the construction speed is greatly increased; the strength of the building support steel bar truss is far higher than that of the traditional embedded bars which are arranged transversely and longitudinally, so that the working quality can be ensured, and the engineering cost is reduced.
Preferably, the utility model further adopts the technical scheme that:
the lower surfaces of the upper end and the lower end of the bottom template are welded with angle steels, the outer ends of the angle steels are welded with end plates, and the end plates are fixed with supporting plates extending out of the upper platform beam and the lower platform beam through bolts; the upper end and the lower end of the steel bar truss are respectively provided with an upper support additional steel bar and a lower support additional steel bar, the upper support additional steel bar is fixedly bound with an upper chord or an upper transverse distribution bar, the lower support additional steel bar is fixedly bound with a lower chord or a lower transverse distribution bar, and the outer end of the upper support additional steel bar and the outer end of the lower support additional steel bar are fixedly bound with a platform steel bar.
The beneficial effects obtained by the above features are that: the end connection structure provided by the embodiment is simple to manufacture and convenient to install.
The two ends of the side kickplates extend out of the side die, and the extending ends of the side kickplates are fixedly connected with the included angle of the outer side face of the side die through L plates.
The beneficial effects obtained by the above features are that: the side kick plate mounting structure provided by this example does not require alignment of the side kick plate ends with the side edge molds.
Drawings
FIG. 1 is a schematic diagram of the main components of the formwork structure of the present utility model;
FIG. 2 is a perspective view of the stair formwork structure of the present utility model;
FIG. 3 is a schematic view (section A-A) of the transverse distribution bar arrangement of the present utility model;
FIG. 4 is an overall construction of the stair form of the present utility model;
FIG. 5 is a diagram showing the structure of the connection between the upper end of the bottom die and the platform beam;
FIG. 6 is a diagram showing the structure of the lower end of the bottom die and the platform beam according to the present utility model.
In the figure: 1. a bottom template; 2. steel bar truss; 3. a side kickplate; 4. a side mold; 5. an upper platform beam; 6. a lower platform beam; 7. the upper layer is transversely distributed with ribs; 8. the lower layer is transversely distributed with ribs; 9. reinforcing steel bars are added to the upper layer support; 10. Reinforcing steel bars are added to the lower layer support; 11. an L plate; 12. angle steel; 13. an end plate; 14. and a supporting plate.
Detailed Description
The utility model is further described below in connection with the following examples which are provided for the purpose of better understanding of the present utility model and are, therefore, not to be construed as limiting the scope of the utility model.
Referring to fig. 1 to 6, the plate type stair formwork structure provided by the utility model comprises a bottom die, wherein side dies 4 are arranged on two sides of the bottom die, and the upper side of the side die 4 is provided with a step shape customized according to the tread width and height of a stair; the side faces of the steps of the side dies 4 are provided with side kickplates 3; the upper end of the bottom die is fixed with an upper platform beam 5, and the lower end is fixed with a lower platform beam 6; the bottom die is a prefabricated floor support plate consisting of a bottom die plate 1 and a steel bar truss 2; the steel bar truss 2 is arranged on the upper side of the bottom template 1; the steel bar truss 2 is positioned below the step shape of the side die 4; the chords of the steel bar trusses 2 are arranged parallel to the span direction of the stairs; the upper layer transverse distribution ribs 7 and the lower layer transverse distribution ribs 8 which are parallel to the width direction of the stairs are also arranged; the upper layer transverse distributing ribs 7 are bound and fixed with the upper chord members of the steel bar trusses 2; the lower layer transverse distribution ribs 8 are bound and fixed with the lower chords of the steel bar trusses 2; the upper layer transverse distribution ribs 7 and the lower layer transverse distribution ribs 8 are arranged at equal intervals along the stair span direction; the two ends of the side die 4 are supported on the upper platform beam 5 and the lower platform beam 6, and the lower side of the side die 4 is connected with the bottom die plate 1. The included angle position between the side die 4 and the bottom die plate 1 can be subjected to leakage-proof treatment.
Alternatively, angle steel 12 is welded on the lower surfaces of the upper end and the lower end of the bottom template 1, an end plate 13 is welded on the outer end of the angle steel 12, and the end plate 13 is fixed with a supporting plate 14 extending out of the upper platform beam 5 and the lower platform beam 6 through bolts; the upper end and the lower end of the steel bar truss 2 are respectively provided with an upper support additional steel bar 9 and a lower support additional steel bar, the upper support additional steel bar 9 is bound and fixed with an upper chord or an upper transverse distribution bar 7, and the lower support additional steel bar 10 is bound and fixed with a lower chord or a lower transverse distribution bar 8; the outer ends of the upper support additional steel bars 9 and the lower support additional steel bars 10 are bound and fixed with the platform steel bars.
Alternatively, the fixing structure of the side kick plate 3 and the side die 4 is as follows: the two ends of the side kickplate 3 extend out of the side die 4, and the included angle between the extending end and the outer side face of the side die 4 is fixedly connected through an L plate 11. The longer side kickplates 3 are adopted in the example, the left and right accuracy requirements of the side kickplates 3 are not high during installation, the side faces of steps can be sealed, the effects of the side kickplates are the same slightly left or right, and the side plates do not need to be aligned with the side dies 4.
The platform beam is an I-shaped steel beam, and the upper flange of the steel beam is provided with an anchor. The anchor nails enable the platform beam and the concrete to bear load together and act cooperatively.
The beneficial effects of the utility model are as follows: according to the utility model, the steel bar truss floor support plate used for roof construction in the traditional construction is used in the stair formwork, so that the prefabrication level of the stair is improved; according to the formwork structure provided by the utility model, the requirement of stair reinforcement can be met only by adding a small amount of reinforcement on the truss reinforcement basis, so that the construction speed is greatly increased; the strength of the building support steel bar truss is far higher than that of the traditional embedded bars which are arranged transversely and longitudinally, so that the working quality can be ensured, and the engineering cost is reduced.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the scope of the claims, but rather to cover all equivalent modifications within the scope of the present utility model as defined by the appended claims.
Claims (3)
1. The plate type stair formwork structure comprises a bottom die, wherein side dies are arranged on two sides of the bottom die, and the upper side of each side die is in a step shape customized according to the width and height of a stair tread; side kickplates are arranged on the side surfaces of the steps of the side dies on the two sides; the upper end of the bottom die is fixed with the upper platform beam, and the lower end is fixed with the lower platform beam; the method is characterized in that: the bottom die is a prefabricated floor support plate consisting of a bottom die plate and a steel bar truss; the steel bar truss is arranged on the upper side of the bottom template; the steel bar truss is positioned below the step shape of the side die; chords of the steel bar trusses are arranged in parallel with the span direction of the stairs; the upper layer transverse distribution ribs and the lower layer transverse distribution ribs which extend along the width direction of the stairs are also arranged; the upper layer transverse distribution ribs are bound and fixed with the upper chord members of the steel bar trusses; the lower layer transverse distribution ribs are bound and fixed with the lower chords of the steel bar trusses; the upper layer transverse distribution ribs and the lower layer transverse distribution ribs are arranged at equal intervals along the span direction of the stairs; the two ends of the side mould are supported on the upper platform beam and the lower platform beam, and the lower side of the side mould is connected with the bottom mould plate.
2. The plate stair formwork structure of claim 1, wherein: the lower surfaces of the upper end and the lower end of the bottom template are welded with angle steels, the outer ends of the angle steels are welded with end plates, and the end plates are fixed with supporting plates extending out of the upper platform beam and the lower platform beam through bolts; the upper end and the lower end of the steel bar truss are respectively provided with an upper support additional steel bar and a lower support additional steel bar, the upper support additional steel bar is fixedly bound with an upper chord or an upper transverse distribution bar, the lower support additional steel bar is fixedly bound with a lower chord or a lower transverse distribution bar, and the outer end of the upper support additional steel bar and the outer end of the lower support additional steel bar are fixedly bound with a platform steel bar.
3. The plate stair formwork structure of claim 1, wherein: two ends of the side kickplate extend out of the side die, and the extending end of the side kickplate is fixedly connected with the included angle of the outer side face of the side die through an L plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321842084.4U CN220414855U (en) | 2023-07-13 | 2023-07-13 | Plate type stair formwork structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321842084.4U CN220414855U (en) | 2023-07-13 | 2023-07-13 | Plate type stair formwork structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220414855U true CN220414855U (en) | 2024-01-30 |
Family
ID=89659220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321842084.4U Active CN220414855U (en) | 2023-07-13 | 2023-07-13 | Plate type stair formwork structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220414855U (en) |
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2023
- 2023-07-13 CN CN202321842084.4U patent/CN220414855U/en active Active
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