CN216866121U - Interim steel stair operation platform device in assembly type structure stairwell - Google Patents
Interim steel stair operation platform device in assembly type structure stairwell Download PDFInfo
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- CN216866121U CN216866121U CN202122944899.0U CN202122944899U CN216866121U CN 216866121 U CN216866121 U CN 216866121U CN 202122944899 U CN202122944899 U CN 202122944899U CN 216866121 U CN216866121 U CN 216866121U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 76
- 239000010959 steel Substances 0.000 title claims abstract description 76
- 230000003014 reinforcing effect Effects 0.000 claims description 35
- 239000003351 stiffener Substances 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 9
- 239000002023 wood Substances 0.000 abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 230000007306 turnover Effects 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 abstract 1
- 238000009415 formwork Methods 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000009193 crawling Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
Images
Abstract
The utility model discloses a temporary steel stair operation platform device in an assembly type building structure staircase, which comprises a first ladder section and a second ladder section, wherein the first ladder section is arranged above the second ladder section, the first ladder section and the second ladder section respectively comprise two steel ladder beams arranged in parallel at intervals and a multi-stage steel step plate arranged between the two steel ladder beams, each steel ladder beam is fixedly provided with an upward extending guardrail, the steel ladder beams are obliquely arranged, the top sides close to the upper end and the lower end are respectively and fixedly connected with a hanging ring, the lower ends of the steel ladder beams are connected with a horizontal extending section and are tightly supported on a ladder beam template of an intermediate landing platform or a floor landing platform poured at the lower end, the upper part of the first ladder section is tightly pressed on a ladder beam template of an upper floor landing platform, and the upper part of the second ladder section is tightly pressed on a ladder beam template of the intermediate landing platform. The advantage does, is applicable to wood pattern system or aluminium mould system in the assembled layer, and this device simple structure, installation are convenient, turnover rate is high, and constructor is current convenient, and construction safety is secure.
Description
Technical Field
The utility model belongs to the field of assembly type buildings, and particularly relates to a temporary steel stair operation platform device in a stairwell of an assembly type building structure, which is suitable for a double-race stairwell.
Background
Stair are finished product prefabricated stair in assembly type building engineering, need can carry out stair installation work in operation face construction completion rear, consequently the stairwell is in the halfpace disappearance state at the operation layer, leads to the operation layer not to have the passageway from top to bottom, influences the operation personnel and goes up and down. And a cavity is formed, so that potential safety hazards exist.
At present, a self-made steel crawling ladder or an outer frame is usually adopted to go up and down, the stability of the steel crawling ladder is poor, and the outer frame has safety risks; the staircase forms a cavity, generally adopts forms such as bamboo springboards or template tiling to protect, and stability is relatively poor, and the degree of safety is low. This scheme adopts a novel interim safe stair, simple to operate, and the stable form is good. The problem of difficulty and operation layer safety protection about personnel can be solved, operation layer construction safety is improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a temporary steel stair operation platform device in a stairwell of an assembly type building structure, and aims to overcome the defect of potential safety hazard when a conventional steel ladder or an external frame is used for the stairwell in assembly type building engineering in the prior art.
The technical scheme for solving the technical problems is as follows: the utility model provides an interim steel stair operation platform device in assembly type structure stairwell, its is including locating first bench and the second bench in the stairwell, first bench is located second bench top, first bench and second bench all include two steel terraced roof beams that parallel interval set up and set up the multistage steel step between two steel terraced roof beams, every be fixed with the guardrail that upwards extends on the steel terraced roof beam, steel terraced roof beam slope sets up and is close to rings of each fixed connection of top side at upper and lower both ends, the lower extreme of steel terraced roof beam is connected with the horizontal extension section, the horizontal extension section compresses tightly and supports on the terraced roof beam template of middle rest platform or on the floor platform of lower floor, first bench upper portion compresses tightly on upper floor platform terraced roof beam template, second bench upper portion compresses tightly on the terraced roof beam template of middle rest platform.
On the basis of the technical scheme, the utility model can be further improved as follows.
Furthermore, two steel ladder beams of the first ladder section are respectively fixed with vertical reinforcing rods which extend downwards and are supported on the prefabricated staircase installed on the lower layer at the positions close to the upper ends.
The beneficial effect who adopts above-mentioned further scheme is, effectively strengthens the biggest bearing capacity of first bench, guarantees not to produce too big effort to the ladder beam template that first bench upper end lower part compressed tightly simultaneously, has increased the safe load limit of first bench.
And the lower ends of the oblique reinforcing rods are fixedly connected with the middle parts of the vertical reinforcing rods, and the upper ends of the oblique reinforcing rods are fixedly arranged in the middle parts of the steel ladder beams of the first ladder section.
Adopt above-mentioned further scheme's beneficial effect be, also strengthen the support to the middle part of the steel ladder beam of first bench, guarantee that the middle part is difficult for bending the deformation.
And furthermore, the tops of the two vertical reinforcing rods are fixedly connected through a first horizontal reinforcing rod, and the bottoms of the two vertical reinforcing rods are fixedly connected through a second horizontal reinforcing rod.
The beneficial effect who adopts above-mentioned further scheme is, it is better to guarantee the reinforced support structure wholeness under the first bench, guarantees stronger support capacity.
Furthermore, the middle parts of the two vertical reinforcing rods and the first horizontal reinforcing rod are connected and reinforced through the inverted V-shaped reinforcing rods.
Adopt the beneficial effect of above-mentioned further scheme to be, guarantee that the reinforced support structure under the first bench has stronger anti deformability, promote the holding power.
Furthermore, a reinforcing plate is fixed on the outer side of the joint of the steel ladder beam and the corresponding horizontal extension section.
The beneficial effect who adopts above-mentioned further scheme is, avoids steel ladder beam and horizontal extension section to throw off or receive the time deformation bending, guarantees the security.
Furthermore, an anti-falling rod is fixed between every two adjacent horizontal extension sections.
The beneficial effect who adopts above-mentioned further scheme is, with the crab-bolt cooperation that is used for installing prefabricated PC building of anchor in advance on middle rest platform or the floor, can prevent that horizontal extension from the translation from the middle rest platform or the floor that its pushes down and throw off, avoids the stair to topple over.
Further, the steel ladder beam is C-shaped steel, and the steel step plate is a pattern steel plate.
The adoption of the further scheme has the beneficial effects that the C-shaped steel has strong deformation resistance and is not easy to deform when used as the ladder beam; the steel plate with the patterns is wear-resistant and skid-proof, and is suitable for stair stepping.
Compared with the prior art, the utility model has the technical effects and advantages that:
the steel stair operation platform provided by the utility model is suitable for a wood die system or an aluminum die system in an assembly layer, the whole structure is simple, the first and second stair sections can be respectively and temporarily installed in a stair room between an upper floor and a lower floor of an assembly type building, the fault tolerance rate is high, the installation is simple and convenient, the installation can be finished within 10 minutes when the upper stair section and the lower stair section are installed, and the problems that the stair room is not protected and personnel get on and off can be effectively and temporarily solved after the installation is finished; the product is a standardized and shaped product, the turnover rate is high, the cost for setting up protection on each layer is effectively reduced, and the cost is saved.
Drawings
Fig. 1 is a schematic view of a temporary steel stair operating platform assembly in a fabricated building structure staircase according to the present invention (the first and second flights share the same intermediate landing, two intermediate landings being shown therebetween for ease of viewing only);
FIG. 2 is a cross-sectional view taken along A-A of the second ladder section of FIG. 1;
FIG. 3 is an enlarged view of a circled portion of the lower end of the second step in FIG. 1;
FIG. 4 is a schematic view of the first ladder section of FIG. 1 with vertical stiffeners and associated additional stiffeners;
fig. 5 is a cross-sectional view of the first step section taken along line B-B of fig. 4.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a first ladder section; 2. a second ladder section; 3. a steel ladder beam; 4. a steel step plate; 5. a guardrail; 6. a hoisting ring; 7. a horizontally extending section; 8. a ladder beam template; 9. a vertical stiffener; 10. an oblique reinforcing rod; 11. a first horizontal stiffener; 12. a second horizontal stiffener; 13. a V-shaped stiffener; 14. a reinforcing plate; 15. the anticreep pole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, if terms indicating orientation such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., are used, they indicate orientation or positional relationship based on that shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 5, the utility model provides a temporary steel stair operation platform device in a prefabricated building structure staircase, which comprises a first stair section 1 and a second stair section 2 arranged in the staircase, wherein the first stair section 1 is positioned above the second stair section 2, the first stair section 1 and the second stair section 2 respectively comprise two steel ladder beams 3 arranged in parallel at intervals and a multi-stage steel step plate 4 arranged between the two steel ladder beams 3, each steel ladder beam 3 is fixed with an upward extending guardrail 5, the steel ladder beams 3 are obliquely arranged, the top sides close to the upper end and the lower end are respectively and fixedly connected with a lifting ring 6, the lower end of each steel ladder beam 3 is connected with a horizontal extending section 7, the horizontal extending section 7 is supported on a ladder beam template 8 of a middle rest platform or a lower floor platform in a pressing way, the upper part of the first stair section 1 is pressed on a ladder beam template of an upper floor platform, the upper part of the second ladder section 2 is tightly pressed on a ladder beam template 8 of the middle rest platform.
It should be noted that the above-mentioned stair beam formwork refers to a stair beam formwork that is erected in advance on one side of a prefabricated PC composite slab (floor slab) of an assembly building adjacent to a stairwell for facilitating subsequent installation of a prefabricated PC stair (when the top of the prefabricated PC composite slab is cast with concrete to form an installation platform at the end of the prefabricated PC stair), the stair beam formwork of the present invention may be an aluminum formwork or a wood formwork, wherein the aluminum formwork is suitable for the case of the aluminum formwork, as shown in fig. 1, aluminum formworks are provided at both the middle rest platform and the upper floor slab, and concrete is not cast at both the middle rest platform and the upper floor slab that are provided with the aluminum formworks when the first and second stair sections are installed; in addition, as shown in fig. 4, the first ladder section is a ladder beam wood formwork compressed by the upper end of the first ladder section, and at this time, in order to ensure safety, a reinforcement such as a vertical reinforcing rod is arranged at the lower part of the first ladder section (so as to reduce the stress of the wood formwork).
In one embodiment of the utility model, the two steel ladder beams 3 of the first ladder section 1 are respectively fixed with vertical reinforcing rods 9 which extend downwards and are supported on the prefabricated stairs installed on the lower layer near the upper ends.
As shown in fig. 4, the ladder beam wood formwork is pressed below the first ladder section, the bearing capacity of the wood formwork is limited, and therefore the safety of the ladder section in use is guaranteed through the vertical reinforcing rods. As an alternative, the lower end of the first bench may also be supported by a poured intermediate deck (which is completely constructed and has sufficiently hardened bearing capacity), because if the intermediate deck is not hardened and a stair wood form is used, the wood form is hard to bear large pressure, which may cause a safety risk in using the first bench. The intermediate rest platform between the two ladder sections can be poured or not poured, and the two conditions are applicable. It should be noted that the first ladder section can be used alone, and the second ladder section can be replaced by the installed PC prefabricated staircase instead of using.
In an embodiment of the present invention, as shown in fig. 4, the present invention further includes a plurality of diagonal reinforcing rods 10, wherein the lower ends of the diagonal reinforcing rods 10 are connected and fixed to the middle portions of the vertical reinforcing rods 9, and the upper ends of the diagonal reinforcing rods 10 are fixed to the middle portions of the steel ladder beams 3 of the first ladder section 1.
In one embodiment of the present invention, as shown in fig. 5, the top of two vertical reinforcing rods 9 is fixedly connected by a first horizontal reinforcing rod 11, and the bottom is fixedly connected by a second horizontal reinforcing rod 12.
In one embodiment of the present invention, as shown in fig. 5, the middle portions of the two vertical reinforcing rods 9 and the first horizontal reinforcing rod 11 are further reinforced by connecting inverted V-shaped reinforcing rods 13.
In one embodiment of the present invention, as shown in fig. 3, a stiffening plate 14 is fixed on the outer side of the joint of the steel ladder beam 3 and the corresponding horizontal extension 7.
In one embodiment of the present invention, as shown in fig. 3, an anti-dropping rod 15 is fixed between two adjacent horizontal extension sections 7.
In one embodiment of the present invention, the steel ladder beam 3 is a C-shaped steel, and the steel tread 4 is a pattern steel plate.
It should be noted that the widths of the first ladder section and the second ladder section are both set according to 100mm narrower than the prefabricated staircase, the lengths of the ladder sections are supported according to the actual length, the step width is not less than 200mm, and the height is not more than 180 mm. The steel stair is simple in structure and comprises a ladder beam, steps, a railing and a hanging ring. Except that the ladder beam adopts C shaped steel, the tread adopts the decorative pattern steel plate, the railing adopts square pipe, rings adopt the round steel. The cross beam is placed at the position of placing the bottom of the steel stair according to the angle of the stair on site, the length of the cross beam is not less than the width of the overhanging part of the stair beam, and stable and reliable installation is guaranteed. This product need adopt the tower crane cooperation to ann tear open, lifts by crane and must guarantee that the lifting hook is firm to be hung into the hoisting point, must guarantee hoist and mount safety by special messenger's installation when ann tears open.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A temporary steel stair operation platform device in an assembly type building structure stairwell is characterized by comprising a first stair section (1) and a second stair section (2) which are arranged in the stairwell, wherein the first stair section (1) is positioned above the second stair section (2), the first stair section (1) and the second stair section (2) respectively comprise two steel stair beams (3) which are arranged in parallel at intervals and a multi-stage steel stair tread (4) arranged between the two steel stair beams (3), each steel stair beam (3) is fixedly provided with an upwards extending guardrail (5), the top sides of the steel stair beams (3) which are obliquely arranged and close to the upper end and the lower end are respectively and fixedly connected with a hanging ring (6), the lower end of each steel stair beam (3) is connected with a horizontal extending section (7), and the horizontal extending section (7) is tightly pressed and supported on a stair beam template (8) of a middle rest platform or a lower floor platform is poured, the upper portion of the first ladder section (1) is tightly pressed on the ladder beam template of the upper-layer platform, and the upper portion of the second ladder section (2) is tightly pressed on the ladder beam template (8) of the middle rest platform.
2. A temporary steel stair approach station arrangement in an assembled building structure staircase according to claim 1, characterised in that the two steel ladder beams (3) of the first ladder section (1) are fixed near their upper ends with vertical stiffeners (9) extending downwards and supported on the prefabricated stairways already installed in the lower level, respectively.
3. A temporary steel stair operation platform device in an assembly type building structure staircase according to claim 2, further comprising a plurality of diagonal reinforcing rods (10), wherein the lower ends of the diagonal reinforcing rods (10) are fixedly connected to the middle of the vertical reinforcing rods (9), and the upper ends of the diagonal reinforcing rods are fixedly connected to the middle of the steel ladder beam (3) of the first ladder section (1).
4. A temporary steel stair approach station arrangement in a fabricated building structure staircase according to claim 2, characterised in that the top of the two vertical reinforcement bars (9) are fixedly connected by a first horizontal reinforcement bar (11) and the bottom by a second horizontal reinforcement bar (12).
5. A temporary steel stair operation platform device in a fabricated building structure staircase according to claim 4, wherein the middle parts of the two vertical reinforcing rods (9) and the first horizontal reinforcing rod (11) are further reinforced by connecting inverted V-shaped reinforcing rods (13).
6. A temporary steel stair approach arrangement according to any of claims 1 to 5 wherein a reinforcing plate (14) is fixed to the outer side of the steel ladder beam (3) where it joins the corresponding horizontal extension (7).
7. A temporary steel stair approach arrangement according to any of claims 1 to 5 wherein a retaining bar (15) is secured between adjacent horizontal runs (7).
8. A temporary steel staircase operating platform arrangement in an assembled building structure staircase according to claims 1-5, characterized in that the steel ladder beams (3) are C-section steel and the steel tread plates (4) are riffled steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122944899.0U CN216866121U (en) | 2021-11-29 | 2021-11-29 | Interim steel stair operation platform device in assembly type structure stairwell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122944899.0U CN216866121U (en) | 2021-11-29 | 2021-11-29 | Interim steel stair operation platform device in assembly type structure stairwell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216866121U true CN216866121U (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122944899.0U Active CN216866121U (en) | 2021-11-29 | 2021-11-29 | Interim steel stair operation platform device in assembly type structure stairwell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216866121U (en) |
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2021
- 2021-11-29 CN CN202122944899.0U patent/CN216866121U/en active Active
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Effective date of registration: 20240123 Granted publication date: 20220701 |