CN221001582U - Prefabricated assembled hollow floor system of two-way rib beam - Google Patents
Prefabricated assembled hollow floor system of two-way rib beam Download PDFInfo
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- CN221001582U CN221001582U CN202322321828.4U CN202322321828U CN221001582U CN 221001582 U CN221001582 U CN 221001582U CN 202322321828 U CN202322321828 U CN 202322321828U CN 221001582 U CN221001582 U CN 221001582U
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- prefabricated
- rib
- rib beam
- hollow floor
- bottom plate
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- 230000002787 reinforcement Effects 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000005452 bending Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 13
- 230000002457 bidirectional effect Effects 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000009415 formwork Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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Abstract
The utility model relates to an assembled hollow floor system prefabricated by bidirectional rib beams, which comprises a plurality of prefabricated bottom plates, prefabricated rib beams, prestressed reinforcement and filling bodies, wherein the prefabricated bottom plates are spliced and combined in a closely spliced mode to form a column net, and the prefabricated bottom plates are internally and bidirectionally prefabricated with stressed reinforcement; the prefabricated rib beams comprise prefabricated main rib beams arranged on the prefabricated bottom plate along the X direction and prefabricated secondary rib beams arranged on the prefabricated bottom plate along the Y direction, longitudinal ribs of the prefabricated secondary rib beams are connected through extrusion sleeves, and the main rib beams and the prefabricated secondary rib beams form a hollow layer support of the hollow floor; the prestressed reinforcement is prefabricated at the bottom of the stressed reinforcement of the prefabricated bottom plate; the filling body is prefabricated on the prefabricated bottom plate. By adopting the structure of the utility model, the molding quality is ensured, the construction progress is quickened, and less support can be realized; the prefabricated bottom plates are spliced in a close splicing mode, so that a template-free mode can be realized. The filling body is prefabricated on the bottom plate in a factory, the construction period is shorter, and the forming quality is better.
Description
Technical Field
The utility model relates to the technical field of hollow floors, in particular to an assembled hollow floor prefabricated by bidirectional rib beams.
Background
The hollow floor system is a novel floor system which is arranged after a girderless floor and a dense rib floor and is mainly technically characterized in that a certain number of prefabricated permanent thin-wall boxes are regularly arranged in a cast-in-place concrete floor slab. The technology not only can provide flexible application space, but also has the advantages of reducing the structural dead weight, increasing the rigidity of the floor slab, shortening the construction period, saving the layer height, reducing the excavation quantity of the earth and stone, and the like, and compared with the traditional structural technology, the economic and technical index is obviously improved, and has wide application prospect.
At present, in the hollow superstructure construction field, all adopt the construction technology that full hall scaffold was full to spread the template, construction cycle is long, and the template quantity is big, because cast in situ concrete hollow superstructure bottom flange thickness is thinner, the bottom flange easily appears gasbag, bubble, and closely knit degree is difficult to guarantee.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a prefabricated assembled hollow floor system with bidirectional rib beams.
The utility model provides a prefabricated assembled hollow floor system of a bidirectional rib beam, which adopts the following technical scheme:
a prefabricated assembled hollow floor system of bi-directional rib beam, comprising:
The column net is formed by splicing and combining a plurality of prefabricated bottom plates in a closely spliced mode, and stressed steel bars are bidirectionally prefabricated in the prefabricated bottom plates;
The prefabricated rib beam comprises a prefabricated main rib beam arranged on the prefabricated bottom plate along the X direction and a prefabricated secondary rib beam arranged on the prefabricated bottom plate along the Y direction, longitudinal ribs of the prefabricated secondary rib beams are connected through an extrusion sleeve, and the main rib beam and the prefabricated secondary rib beams form a hollow layer support of the hollow floor;
The prestressed reinforcement is prefabricated at the bottom of the stressed reinforcement of the prefabricated bottom plate;
And the filling body is prefabricated on the prefabricated bottom plate.
Optionally, the concrete poured by the prefabricated main rib beams and the prefabricated secondary rib beams are poured to the bottom of the upper plate.
Optionally, the prefabricated rib beam comprises a rib beam bottom rib, a rib beam top rib, a rib beam waist rib and a rib beam sealing stirrup, wherein the rib beam bottom rib is arranged below the stressed steel bar, the rib beam waist rib is arranged between the rib beam bottom rib and the rib beam top rib, and the rib beam sealing stirrup fixes the rib beam bottom rib, the rib beam top rib and the rib beam waist rib.
Optionally, the concatenation department is provided with prefabricated opening stirrup, prefabricated opening stirrup fixes the rib beam bottom muscle of two adjacent, the filling body is located the outside of the prefabricated opening stirrup at both ends.
Optionally, the rib beam bottom rib is positioned on the cast-in-place concrete part and is bent upwards to form a bending part.
Optionally, the upward bending angle of the rib bottom rib is greater than 1:6.
Optionally, the connection position of the stress steel bar and the frame beam extends out of the prefabricated bottom plate and extends to the middle part of the frame beam.
Optionally, the plate end of the prefabricated bottom plate is placed on the frame beam by more than 10mm.
Optionally, the plate side of the prefabricated bottom plate rests on a frame beam.
Optionally, hooks are prefabricated on the prefabricated rib beams.
In summary, the present utility model includes at least one of the following beneficial technical effects: by adopting the structure, the forming quality is ensured, the construction progress is accelerated, and as the prefabricated rib beams in two directions are prefabricated, the unsupported span is more than 2m, and less support can be realized; the prefabricated bottom plates are spliced in a close splicing mode, so that a template-free mode can be realized. The filling body is prefabricated on the bottom plate in a factory, the construction period is shorter, and the forming quality is better.
Drawings
FIG. 1 is a top view of an embodiment of the present utility model;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1;
FIG. 5 is a view of a composite beam post-cast section beam bottom extrusion sleeve connection according to an embodiment of the present utility model;
FIG. 6 is a schematic illustration of a rib beam node between prefabricated base panels in accordance with an embodiment of the utility model.
Reference numerals illustrate: 1. prefabricating a bottom plate; 2. prefabricating a main rib beam; 3. prefabricating secondary rib beams; 4. rib beam waist rib; 5. extruding the sleeve; 6. rib beam top rib; 7. a bending part; 8. a filler; 9. the rib beam seals the stirrup; 10. rib beam bottom ribs; 11. prefabricating an opening stirrup; 12. a lifting hook; 13. and (5) stressing the steel bars.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-6.
The embodiment of the utility model discloses a prefabricated assembled hollow floor system of a bidirectional rib beam.
Referring to fig. 1-6, a prefabricated assembled hollow floor system of two-way rib beam comprises a plurality of prefabricated bottom plates 1, prefabricated rib beams, prestressed reinforcement and filling bodies 8, wherein the prefabricated bottom plates 1 are spliced and combined in a close-spliced mode to form a column net, and stress reinforcement 13 is prefabricated in the prefabricated bottom plates 1 in two directions; the prefabricated rib beams comprise a prefabricated main rib beam 2 arranged on the prefabricated bottom plate 1 along the X direction and a prefabricated secondary rib beam 3 arranged on the prefabricated bottom plate 1 along the Y direction, longitudinal ribs of the prefabricated secondary rib beams 3 are connected through extrusion sleeves 5, and the main rib beam and the prefabricated secondary rib beams 3 form a hollow layer support of the hollow floor; the prestressed reinforcement is prefabricated at the bottom of the stressed reinforcement 13 of the prefabricated bottom plate 1; the filling body 8 is prefabricated on the prefabricated base plate 1.
By adopting the structure, the forming quality is ensured, the construction progress is accelerated, and as the prefabricated rib beams in two directions are prefabricated, the unsupported span is more than 2m, and less support can be realized; the prefabricated bottom plates 1 are spliced in a close splicing mode, so that a template-free mode can be realized. The filling body 8 is prefabricated on the bottom plate in a factory, the construction period is shorter, and the forming quality is better.
Set up the prefabricated bottom plate 1 assembled concrete hollow superstructure of polylith prestressing force in a column network span, in this embodiment, a column network is by the close combination of three prefabricated bottom plates 1, and prefabricated rib roof beam prefabricates in prefabricated bottom plate 1 for the prefabricated bottom plate need not the formwork during the construction, and need not to fill hall scaffold, and no support span is greater than 2m, realizes exempting from the formwork few supports.
The plate end of the prefabricated bottom plate 1 is placed on the frame beam by more than 10mm.
The plate side can be determined according to the design condition, and can be placed on a frame beam, or a part of cast-in-situ belt can be arranged without being placed. The plate side can be determined according to the design condition, and can be placed on a frame beam, or a part of cast-in-situ belt can be arranged without being placed. In this embodiment, the plate side of the prefabricated base plate 1 rests on the frame beams.
The prefabricated rib beam is prefabricated with the lifting hook 12, the lifting hook 12 is fixed on the steel bars of the prefabricated rib beam, then the prefabricated rib beam is integrally formed through concrete, and the assembled hollow floor system is lifted through the lifting hook 12.
And the concrete poured by the precast main rib beam 2 and the precast secondary rib beam 3 is poured to the bottom of the upper plate so as to ensure the construction of the plate face steel bars and the rib beam top steel bars 6.
The prefabricated main rib beam 2 and the prefabricated secondary rib beam 3 of the prefabricated rib beam respectively comprise a rib beam bottom rib 10, a rib beam top rib 6, a rib beam waist rib 4 and a rib beam sealing stirrup 9, wherein the rib beam bottom rib 10 is arranged below the stress steel bar 13, the rib beam waist rib 4 is arranged between the rib beam bottom rib 10 and the rib beam top rib 6, and the rib beam bottom rib 10, the rib beam top rib 6 and the rib beam waist rib 4 are fixed by the rib beam sealing stirrup 9. And binding longitudinal ribs and stirrups of the prefabricated main rib beam 2 at the joint of the floor slab on site.
The adjacent floor splice is provided with prefabricated opening stirrup 11, and prefabricated opening stirrup 11 fixes two adjacent rib roof beam bottom tendons 10, and the packing body 8 is located the outside of prefabricated opening stirrup 11 at both ends.
The rib beam bottom rib 10 is positioned on the cast-in-place concrete part and is bent upwards to form a bending part 7. The strength and the bearing capacity of the precast rib beam are increased by bending upwards at the middle part of the precast rib beam, so that the area of a compression area at the middle part of the precast rib beam is reduced, and the risks of deformation and damage of the precast rib beam are reduced. In this embodiment, the upward bending angle of the rib bottom rib 10 is greater than 1:6.
The connection position of the stress steel bars 13 and the frame beam extends out of the prefabricated bottom plate 1 and extends to the middle part of the frame beam.
The filling body 8 is prefabricated on the prefabricated bottom plate 1, and the filling body 8 can adopt an air bag, a gypsum mold box, a core mold and a foam block, so that the weight of the whole floor system is reduced, and the use span of the floor system is further enlarged.
The bottom surface of the assembled integral hollow floor slab at the close joint is provided with a chamfer, the chamfer size of the bottom surface is preferably larger than 15mm by 15mm, and the chamfer should be subjected to anti-cracking treatment.
The bidirectional rib beam steel bars are prefabricated, only the plate face steel bars are required to be bound on site, the site workload is greatly reduced, and the construction period is saved. And the floor slab calculation mode is the same as that of the cast-in-place concrete hollow floor slab, so that the method is applicable to buildings with high requirements on large span, large load and clearance, and has wide application range.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (10)
1. The utility model provides a prefabricated assembled hollow superstructure of two-way rib beam which characterized in that: comprising the following steps:
The column net is formed by splicing and combining a plurality of prefabricated bottom plates in a closely spliced mode, and stressed steel bars are bidirectionally prefabricated in the prefabricated bottom plates;
The prefabricated rib beam comprises a prefabricated main rib beam arranged on the prefabricated bottom plate along the X direction and a prefabricated secondary rib beam arranged on the prefabricated bottom plate along the Y direction, longitudinal ribs of the prefabricated secondary rib beams are connected through an extrusion sleeve, and the main rib beam and the prefabricated secondary rib beams form a hollow layer support of the hollow floor;
The prestressed reinforcement is prefabricated at the bottom of the stressed reinforcement of the prefabricated bottom plate;
And the filling body is prefabricated on the prefabricated bottom plate.
2. The bi-directional ribbed prefabricated hollow floor system of claim 1, wherein: and the concrete poured by the prefabricated main rib beams and the prefabricated secondary rib beams is poured to the bottom of the upper plate.
3. The bi-directional ribbed prefabricated hollow floor system of claim 2, wherein: the prefabricated rib beam comprises a rib beam bottom rib, a rib beam top rib, a rib beam waist rib and a rib beam sealing stirrup, wherein the rib beam bottom rib is arranged below the stressed steel bar, the rib beam waist rib is arranged between the rib beam bottom rib and the rib beam top rib, and the rib beam sealing stirrup fixes the rib beam bottom rib, the rib beam top rib and the rib beam waist rib.
4. A prefabricated assembled hollow floor system of a bi-directional rib beam as claimed in claim 3, wherein: the splice is provided with prefabricated opening stirrups, the prefabricated opening stirrups fix two adjacent rib beam bottom ribs, and the filling body is located the outside of the prefabricated opening stirrups at both ends.
5. A prefabricated assembled hollow floor system of a bi-directional rib beam as claimed in claim 3, wherein: and the rib beam bottom rib is positioned on the cast-in-place concrete part and is bent upwards to form a bending part.
6. The bi-directional ribbed prefabricated hollow floor system of claim 5, wherein: the upward bending angle of the rib beam bottom rib is larger than 1:6.
7. The bi-directional ribbed prefabricated hollow floor system of claim 1, wherein: the connection position of the stress steel bars and the frame beam extends out of the prefabricated bottom plate and extends to the middle part of the frame beam.
8. The bi-directional ribbed prefabricated hollow floor system of claim 7, wherein: the plate end of the prefabricated bottom plate is placed on the frame beam by more than 10mm.
9. The bi-directional ribbed prefabricated hollow floor system of claim 1, wherein: the plate side of the prefabricated bottom plate is placed on the frame beam.
10. The bi-directional ribbed prefabricated hollow floor system of claim 1, wherein: and the prefabricated rib beam is prefabricated with a lifting hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322321828.4U CN221001582U (en) | 2023-08-28 | 2023-08-28 | Prefabricated assembled hollow floor system of two-way rib beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322321828.4U CN221001582U (en) | 2023-08-28 | 2023-08-28 | Prefabricated assembled hollow floor system of two-way rib beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221001582U true CN221001582U (en) | 2024-05-24 |
Family
ID=91091679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322321828.4U Active CN221001582U (en) | 2023-08-28 | 2023-08-28 | Prefabricated assembled hollow floor system of two-way rib beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221001582U (en) |
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2023
- 2023-08-28 CN CN202322321828.4U patent/CN221001582U/en active Active
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