CN217811848U - Prestressed hollow floor slab component - Google Patents
Prestressed hollow floor slab component Download PDFInfo
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- CN217811848U CN217811848U CN202222183256.3U CN202222183256U CN217811848U CN 217811848 U CN217811848 U CN 217811848U CN 202222183256 U CN202222183256 U CN 202222183256U CN 217811848 U CN217811848 U CN 217811848U
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- bottom plate
- hollow floor
- rib
- prestressed
- floor slab
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 230000002787 reinforcement Effects 0.000 claims abstract description 33
- 239000000945 filler Substances 0.000 claims abstract description 21
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 7
- 239000004567 concrete Substances 0.000 description 5
- 239000006260 foam Substances 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The application relates to a hollow floor component of prestressing force, this hollow floor component of prestressing force includes bottom plate, rib beam, filler and steel, is provided with the bottom plate horizontal reinforcement in the bottom plate, sets up rib beam and filler at the bottom plate upper surface, sets up prestressing steel and face horizontal reinforcement in the rib beam to replace current traditional steel bar truss coincide floor. Compared with the prior art, the steel is arranged inside the bottom plate and the rib beams, and the filler is arranged between the rib beams, so that the strength of the prestressed hollow floor slab member is ensured, the self weight is reduced, and the transportation and the bearing are facilitated; when the hollow floor slab member of stress splices, the reducible pad of bottom plate horizontal reinforcement and face horizontal reinforcement interconnect and the process of making level, the effectual concatenation degree of difficulty that has reduced between the hollow floor slab member of prestressing force.
Description
Technical Field
The utility model relates to a hollow floor component of prestressing force belongs to assembled building structure technical field.
Background
The traditional precast floor slab generally adopts a composite floor slab, the bottom of the composite floor slab adopts a precast concrete thin slab as a permanent template, and besides bottom steel bars are arranged in the concrete thin slab, truss steel bars with one ends extending out of the composite floor slab are also required to be arranged, so that the steel bar consumption is greatly increased, and the use cost is improved; moreover, as the truss reinforcing steel bars are higher than the upper surface of the laminated floor slab, the stacked concrete sheets are easy to cause the extrusion deformation of the truss reinforcing steel bars so as to influence the use in the transportation process, and the truss reinforcing steel bars can also cause the stacking instability of the stacked laminated floor slab in the height direction, so that the loading quantity of the laminated floor slab is limited each time, and the transportation cost is high due to the need of multiple transportation; in addition, when the composite floor slabs are poured and spliced, a supporting system needs to be arranged below the slabs so as to ensure that the composite floor slabs are parallel and level with each other, the construction difficulty is increased, the whole thickness of the composite slab is larger than that of a cast-in-place slab after the cast-in-place layer of the composite slab is poured, the construction cost is increased, and the material waste is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hollow floor component of prestressing force, its simple structure, the concatenation is convenient.
In order to achieve the above purpose, the utility model provides a following technical scheme: a prestressed hollow floor structure comprising:
the bottom plate is formed by pouring;
the rib beams are cast on the upper surface of the bottom plate and arranged in parallel, and the rib beams extend along the lengthwise direction of the bottom plate;
the filler is arranged between two adjacent rib beams; and
the steel comprises a plurality of bottom plate transverse steel bars, a plurality of prestressed steel bars and a plurality of plate surface transverse steel bars; wherein,
the plurality of bottom plate transverse steel bars are arranged in the bottom plate at equal intervals along the longitudinal direction of the bottom plate, the plurality of bottom plate transverse steel bars are positioned in the bottom plate, two ends of each bottom plate transverse steel bar are bent upwards to form a 90-degree hook, and the hooks extend out of the upper surface of the bottom plate and are lower than the upper surface of the rib beam;
the plurality of prestressed reinforcements are arranged in the rib beam along the lengthwise direction of the bottom plate and are higher than the upper surface of the bottom plate;
a plurality of the face transverse reinforcement is followed the lengthwise direction equidistance of bottom plate is arranged in the rib, and a plurality of the face transverse reinforcement is higher than the prestressing steel with the top of the upper surface of filler.
Further, the steel further comprises bottom plate longitudinal steel bars extending along the longitudinal direction of the bottom plate, and the bottom plate longitudinal steel bars are connected with the bottom plate transverse steel bars and are fixed at the inner corners of the hooks.
Further, at least two ribs divide the upper surface of the bottom plate into a plurality of areas, the area between two adjacent ribs is called an inner area, the rest areas are called outer areas, the fillers are arranged in the inner area, and the width of the outer area is equal to half of that of the inner area.
Furthermore, non-dismantling formworks are arranged on two sides of the rib beam.
Further, the filler is foam plastic.
The beneficial effects of the utility model reside in that: the application provides a hollow floor slab component of prestressing force includes bottom plate, rib girder, filler and steel, is provided with the bottom plate horizontal reinforcement in the bottom plate, sets up rib girder and filler at the bottom plate upper surface, sets up prestressing steel and face horizontal reinforcement in the rib girder to replace current traditional steel bar truss coincide floor slab. Compared with the prior art, the steel is arranged inside the bottom plate and the rib beams, and the filler is arranged between the rib beams, so that the strength of the prestressed hollow floor slab member is ensured, the self weight is reduced, and the prestressed hollow floor slab member is convenient to transport and bear; when the hollow floor slab member of stress splices, the reducible pad of bottom plate horizontal reinforcement and face horizontal reinforcement interconnect and the process of making level, the effectual concatenation degree of difficulty that has reduced between the hollow floor slab member of prestressing force.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is an overall structural view of a prestressed hollow floor slab member according to a preferred embodiment of the present invention.
Figure 2 is a partial block diagram of the prestressed hollow floor slab element of figure 1.
Figure 3 is an end view of the prestressed hollow floor element of figure 1.
Figure 4 is an overall splice view of a prestressed hollow floor slab of the present application.
Fig. 5 is a partial sectional view of the prestressed hollow floor slab of fig. 4.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, a prestressed hollow floor slab according to a preferred embodiment of the present invention includes: the bottom plate 1, the rib beam 2, the filler 6 and steel are poured to form the bottom plate 1; the three rib beams 2 are poured on the upper surface of the bottom plate 1, the three rib beams 2 are arranged in parallel, and the three rib beams 2 extend along the longitudinal direction of the bottom plate 1; the filler 6 is arranged between two adjacent rib beams 2; the steel comprises a plurality of bottom plate transverse steel bars 3, a plurality of prestressed steel bars 4 and a plurality of plate surface transverse steel bars 6; the plurality of bottom plate transverse steel bars 3 are arranged in the bottom plate at equal intervals along the longitudinal direction of the bottom plate, the plurality of bottom plate transverse steel bars 3 are positioned in the bottom plate, two ends of each bottom plate transverse steel bar 3 are bent upwards to form a 90-degree hook, and the hook extends out of the upper surface of the bottom plate 1 and is lower than the upper surface of the rib beam 2; the plurality of prestressed reinforcements 4 are arranged in the rib beam 2 along the longitudinal direction of the bottom plate 1, and the plurality of prestressed reinforcements 4 are higher than the upper surface of the bottom plate 1; a plurality of face transverse reinforcement 6 are arranged in rib beam 2 along the lengthwise direction equidistance of bottom plate 1, and a plurality of face transverse reinforcement 6 are higher than the top of prestressing steel 4 and the upper surface of filler 6.
For the convenience of arranging the bottom plate transverse reinforcement and guaranteeing that the hook of the bottom plate transverse reinforcement is vertical upwards, in this embodiment, the steel further comprises bottom plate longitudinal reinforcements (not shown) extending along the lengthwise direction of the bottom plate 1, and the bottom plate longitudinal reinforcements are connected with the bottom plate transverse reinforcements 3 and fixed at the inner corners of the hook.
In the present embodiment, three ribs 2 divide the upper surface of the base plate 1 into 4 regions, the region between two adjacent ribs 2 is referred to as an inner region, and the remaining region is referred to as an outer region, and the filler 6 is disposed in the inner region, and the width of the outer region is equal to half of the width of the inner region.
In order to facilitate the casting of the rib beam 2, in the embodiment, the non-dismantling formworks 7 are arranged on two sides of the rib beam 2.
In order to reduce the dead weight of the hollow floor, the filler 6 is a foam in this embodiment. The foam 6 can provide good heat insulation and sound insulation effects.
Referring to fig. 4 to 5, a construction method of a prestressed hollow floor slab provided by the present application includes:
s1: manufacturing a prestressed hollow floor slab component according to design requirements;
s2: hoisting the prestressed hollow floor slab components to be placed at a preset position, and connecting the adjacent prestressed hollow floor slab components in a close splicing connection mode;
s3: concrete is poured between the rib beams 2 and in the outer area to form the prestressed hollow floor slab, and the pouring elevation is flush with the upper surfaces of the rib beams 2.
The manufacturing method for manufacturing the prestressed hollow floor slab member comprises the following steps:
s11: laying a pouring template of a bottom plate 1 according to a design drawing, laying a bottom plate transverse steel bar 3 in the pouring template, mounting a bottom plate longitudinal steel bar at the inner corner of the bottom plate transverse steel bar 3, binding and fixing the bottom plate transverse steel bar 3 and the bottom plate longitudinal steel bar, arranging a disassembly-free template 7 of a rib beam 2 on the upper surface of the bottom plate 1 according to the design drawing, arranging a prestressed steel bar 4 in the disassembly-free template 7, tensioning the prestressed steel bar 4 by adopting a pretensioning method, filling foam plastics in an inner area, arranging a plate surface transverse steel bar 6 at the top of the rib beam 2, sequentially passing the plate disassembly-free template 7 through the plate 6 and tensioning by adopting the pretensioning method;
s12: concrete is poured to form the floor 1 and the rib 2.
In this embodiment, the close-splicing connection form is specifically: the bottom plate 1 of two prestressing force hollow floor components splices along its lengthwise direction level, places piece reinforcing bar 8 in the concatenation department of two prestressing force hollow floor components, and piece reinforcing bar 8 is binded on adjacent two the crotch of bottom plate 1, lays a plurality of face longitudinal reinforcement 9 along the lengthwise direction of bottom plate 1 between adjacent two rib 2, and face longitudinal reinforcement 9 is fixed on face transverse reinforcement 6.
In this embodiment, the prestressed hollow floor slab member may be prefabricated in a factory by using a long line form, and is maintained after being manufactured, and is demolded after being maintained and transported to a member storage site to be used. And after the construction of the structural beam column on the construction site is finished, hoisting the prefabricated prestressed hollow floor slab by adopting hoisting machinery and placing the prefabricated prestressed hollow floor slab at an appointed position for splicing construction.
In conclusion: the application provides a hollow floor slab component of prestressing force includes bottom plate, rib girder, filler and steel, is provided with the bottom plate horizontal reinforcement in the bottom plate, sets up rib girder and filler at the bottom plate upper surface, sets up prestressing steel and face horizontal reinforcement in the rib girder to replace current traditional steel bar truss coincide floor slab. Compared with the prior art, the steel is arranged inside the bottom plate and the rib beams, and the filler is arranged between the rib beams, so that the strength of the prestressed hollow floor slab member is ensured, the self weight is reduced, and the transportation and the bearing are facilitated; when the hollow floor slab member of stress splices, the reducible pad of bottom plate horizontal reinforcement and face horizontal reinforcement interconnect and the process of making level, the effectual concatenation degree of difficulty that has reduced between the hollow floor slab member of prestressing force.
The application provides a construction method of hollow floor of prestressing force, connect two adjacent hollow floor components of prestressing force through close-packed form, cast in situ only need pour the region between the ribbed beam in order to form hollow floor of prestressing force, and cast in situ concrete's elevation only need guarantee with ribbed beam upper surface parallel and level, the step of formwork erection and making level has been reduced, the work load has been reduced, the work efficiency is improved, simultaneously, the hollow floor of prestressing force of polylith hollow floor component close-packed pouring formation monoblock hollow floor of prestressing force, the two-way atress of monoblock hollow floor along lengthwise direction, pass the power route clear, high durability and convenient use.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. A prestressed hollow floor structure, comprising:
the bottom plate is formed by pouring;
the rib beams are cast on the upper surface of the bottom plate and arranged in parallel, and the rib beams extend along the lengthwise direction of the bottom plate;
the filler is arranged between two adjacent rib beams; and
the steel comprises a plurality of bottom plate transverse steel bars, a plurality of prestressed steel bars and a plurality of plate surface transverse steel bars; wherein,
the plurality of bottom plate transverse steel bars are arranged in the bottom plate at equal intervals along the longitudinal direction of the bottom plate, the plurality of bottom plate transverse steel bars are positioned in the bottom plate, two ends of each bottom plate transverse steel bar are bent upwards to form a 90-degree hook, and the hooks extend out of the upper surface of the bottom plate and are lower than the upper surface of the rib beam;
the plurality of prestressed reinforcements are arranged in the rib beam along the lengthwise direction of the bottom plate and are higher than the upper surface of the bottom plate;
a plurality of the face transverse reinforcement is followed the lengthwise direction equidistance of bottom plate is arranged in the rib beam, and a plurality of the face transverse reinforcement is higher than the prestressing steel with the top of the upper surface of filler.
2. The prestressed hollow floor structure of claim 1, wherein said steel further includes a base plate longitudinal reinforcement extending in a longitudinal direction of said base plate, said base plate longitudinal reinforcement being connected to a plurality of base plate transverse reinforcements and fixed to inner corners of said hooks.
3. A prestressed hollow floor structure as claimed in claim 2, wherein at least two of said ribs divide the upper surface of said floor into regions, the region between two adjacent ribs being referred to as an inner region and the remaining regions being referred to as outer regions, said filling being provided in said inner region, said outer regions having a width equal to half that of said inner region.
4. A prestressed hollow floor structure according to claim 2, wherein said rib beams are provided with non-dismantling forms on both sides.
5. A prestressed hollow floor structure according to claim 2, wherein said filler is a foamed plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222183256.3U CN217811848U (en) | 2022-08-18 | 2022-08-18 | Prestressed hollow floor slab component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222183256.3U CN217811848U (en) | 2022-08-18 | 2022-08-18 | Prestressed hollow floor slab component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217811848U true CN217811848U (en) | 2022-11-15 |
Family
ID=83976445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222183256.3U Active CN217811848U (en) | 2022-08-18 | 2022-08-18 | Prestressed hollow floor slab component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217811848U (en) |
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2022
- 2022-08-18 CN CN202222183256.3U patent/CN217811848U/en active Active
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