CN220184399U - Reinforced prefabricated bottom plate component and floor system - Google Patents
Reinforced prefabricated bottom plate component and floor system Download PDFInfo
- Publication number
- CN220184399U CN220184399U CN202321592253.3U CN202321592253U CN220184399U CN 220184399 U CN220184399 U CN 220184399U CN 202321592253 U CN202321592253 U CN 202321592253U CN 220184399 U CN220184399 U CN 220184399U
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- unidirectional
- tubular
- truss
- bottom plate
- reinforced
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000011178 precast concrete Substances 0.000 claims abstract description 3
- 239000004567 concrete Substances 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 238000011065 in-situ storage Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model discloses a reinforced prefabricated floor member, which comprises: prefabricating a bottom plate, a tubular unidirectional truss and a reinforced concrete narrow plate; the tubular unidirectional truss is arranged on the prefabricated bottom plate, and is a wavy whole hollow pipe or a whole steel bar which is continuously bent; the two groups of the tubular unidirectional trusses are fixedly connected or welded on two sides of the reinforced concrete narrow plate at the peak parts of the two groups of the tubular unidirectional trusses; or the tubular unidirectional trusses are a group, and the wave crest parts of the tubular unidirectional trusses are fixedly connected or welded on the bottom surface of the reinforced concrete narrow plate; the reinforced concrete narrow plate is a precast concrete plate, the width of the reinforced concrete narrow plate is larger than the maximum width of the tubular unidirectional truss and smaller than the width of the precast bottom plate. The utility model adopts the reinforced concrete narrow plates to replace the traditional steel pipes or steel bars, thereby saving steel materials and increasing the section moment of inertia and the resistance moment. The utility model also discloses a floor system, which comprises the reinforced prefabricated bottom plate component.
Description
Technical Field
The utility model relates to the technical field of assembled buildings, in particular to a reinforced prefabricated bottom plate component and a floor system.
Background
Prefabricated floors are components for fabricated buildings. The prefabricated bottom plate has the advantages of good integrity and good cracking resistance, and is suitable for high-rise buildings and large-bay buildings with higher overall rigidity.
Existing prefabricated floor elements are typically constructed of a floor made of concrete and a steel truss disposed on the floor. The steel bar truss generally comprises bent web steel bars and steel pipes arranged on the web steel bars. For example, chinese patent publication No. CN218233941U, which includes a winding wire and a plurality of hollow web members, solves the problem of excessive thick reinforcement and excessive cost by hammering or pressing the continuously bent portions of the hollow web members into a flat shape. But this solution is cost prohibitive and requires additional processes.
Disclosure of Invention
The technical scheme adopted by the utility model for solving the technical problems is that the upper chord steel bar in the prior art is changed into the reinforced concrete narrow plate, so that the web member steel bar is not required to be beaten, and the cost and the steel bar consumption are saved. It comprises the following steps: prefabricating a bottom plate, a tubular unidirectional truss and a reinforced concrete narrow plate; the tubular unidirectional truss is arranged on the prefabricated bottom plate, and is a wavy whole hollow pipe or a whole steel bar which is continuously bent; the two groups of the tubular unidirectional trusses are fixedly connected or welded on two sides of the reinforced concrete narrow plate at the peak parts of the two groups of the tubular unidirectional trusses; or the tubular unidirectional trusses are a group, and the wave crest parts of the tubular unidirectional trusses are fixedly connected or welded on the bottom surface of the reinforced concrete narrow plate.
Further, the concrete casting device further comprises cast-in-situ laminated layer concrete and cast-in-situ laminated layer concrete reinforcing steel bars, wherein the cast-in-situ laminated layer concrete is cast on the tubular unidirectional truss on site and covers the upper surface of the tubular unidirectional truss.
Further, the hollow tube can be filled with filling grouting material.
Further, the reinforced concrete narrow plate can be internally provided with a longitudinal reinforcement, and the longitudinal reinforcement can be a steel bar, a steel pipe, an iron pipe, an alloy pipe or a plastic rod.
Further, the bottom of the tubular unidirectional truss directly passes through and is hooked on the reinforcement cage in the prefabricated bottom plate; or the bottoms of the tubular unidirectional trusses are connected with the prefabricated bottom plate through connecting pieces.
Further, the tubular unidirectional truss also comprises a lower chord rib or a pipe, and the bottom of the tubular unidirectional truss and the lower chord rib or the pipe are buried in the prefabricated bottom plate together; the lower chord rib or the pipe can be arranged in parallel with the tubular unidirectional truss or can be arranged vertically with the tubular unidirectional truss; the lower chord rib or the pipe can be arranged above the trough of the tubular unidirectional truss or below the trough of the tubular unidirectional truss.
Further, the prefabricated bottom plate is a strip-shaped integral bottom plate, is a reinforced concrete bottom plate or a cement mortar bottom plate, or is fiber concrete.
Further, reinforcing ribs are arranged in the prefabricated bottom plate and are arranged along the length direction of the prefabricated bottom plate, and the reinforcing ribs can be prestressed ribs or common reinforcing steel bars or mixed arrangement of the prestressed ribs and the common reinforcing steel bars.
The utility model also provides a floor system comprising the reinforced prefabricated floor member and beams or walls or columns for supporting the prefabricated floor member.
The utility model has the following beneficial effects: the utility model adopts the reinforced concrete narrow plates to replace the traditional steel pipes or steel bars, thereby saving steel materials, increasing the section moment of inertia and the resistance moment, and adopting the tubular unidirectional truss for the purpose of reinforcing the connecting part of the concrete narrow plates and the prefabricated bottom plates, not only solving the problem of overlarge steel consumption of the traditional triangular truss, but also facilitating the penetration of the field hydropower pipeline, and solving the problem of truss instability caused by the insufficient slenderness ratio of the traditional space truss steel bars.
Drawings
FIG. 1 is a plan view of a reinforced prefabricated floor element;
FIG. 2 is a cross-sectional view of a reinforced prefabricated floor element B-B;
FIG. 3 is a cross-sectional view of a reinforced prefabricated floor element A-A;
fig. 4 is a schematic view of three embodiments of a tubular unidirectional truss.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings of embodiments of the present utility model, in which the description is given for some, but not all embodiments of the present utility model. Many variations, modifications, adaptations, and alternatives of the embodiments may occur to one skilled in the art without departing from the scope of the utility model.
Referring to fig. 1 to 4, a reinforced prefabricated floor member of the present utility model includes: a reinforced concrete narrow plate 1, a tubular unidirectional truss 2 and a prefabricated bottom plate 3; the reinforced concrete narrow plate 1 is connected with the prefabricated bottom plate 3 into a whole through the tubular unidirectional truss 2. The reinforced concrete narrow plate is a precast concrete plate, and the width of the reinforced concrete narrow plate is larger than the maximum width of the tubular unidirectional truss and smaller than the width of the precast bottom plate.
The cast-in-situ laminated layer concrete 4 is cast on the tubular unidirectional truss 2 on site and covers the upper surface of the tubular unidirectional truss 2.
The tubular unidirectional truss 2 is a wavy continuous bent whole hollow pipe or a whole steel bar, and the hollow pipe can be filled with grouting material.
Longitudinal reinforcements 5 can be arranged in the reinforced concrete narrow plates 1, and the longitudinal reinforcements 5 can be steel bars, steel pipes, iron pipes, alloy pipes and plastic rods.
The two groups of the tubular unidirectional trusses 2 are fixedly connected or welded on the left side surface and the right side surface of the longitudinal reinforcement 5 at the wave crest parts of the two groups of the tubular unidirectional trusses 2.
The tubular unidirectional trusses 2 may be a group, and the peak parts of the tubular unidirectional trusses are fixedly connected or welded on the bottom surface of the longitudinal reinforcement 5. Because the tubular unidirectional truss can be lifted to the top of the concrete, the tubular unidirectional truss is directly inserted to the bottom of a mould for casting the concrete narrow plate during manufacturing, the cushion block is not required to be positioned up and down, and the production and the manufacturing are more convenient, rapid and efficient.
The bottom of the tubular unidirectional truss 2 directly passes through and is hooked on the reinforcement cage in the prefabricated bottom plate 1; or the bottom of the tubular unidirectional truss 2 is connected with the prefabricated bottom plate 1 through a connecting piece, and the connecting piece 7 is a binding iron wire, a steel wire, a nylon rope, a bayonet fitting, a lantern ring, a sleeve, a bolt, a buckle, an anchor plate, a pier head, a buckle, a screw rod or a perforation pin.
The tubular unidirectional truss 2 also comprises lower chord ribs or pipes 8, and the bottom of the tubular unidirectional truss 2 and the lower chord ribs or pipes 8 are buried in the prefabricated bottom plate 1 together; the lower chord rib or pipe 8 can be arranged in parallel with the tubular unidirectional truss 2 or can be arranged perpendicular to the tubular unidirectional truss 2. When the tubular unidirectional trusses are arranged in parallel, the tubular unidirectional trusses can play a role of an anchor plate and enhance the pulling resistance of the tubular unidirectional trusses; when the vertical setting, can also be used as the reinforcing bar of another direction in the prefabricated bottom plate, saved the steel consumption greatly, after having integrated the reinforcing bar of another direction, can accelerate the speed of product preparation and installation greatly, increase work efficiency.
The prefabricated base plate 1 is a strip-shaped integral base plate, is a reinforced concrete base plate or a cement mortar base plate, or is a fiber concrete high-ductility concrete base plate.
The reinforcing ribs 9 are arranged in the prefabricated bottom plate 1, the reinforcing ribs 9 are arranged along the length direction of the prefabricated bottom plate 1, and the reinforcing ribs 9 can be prestressed ribs or common reinforcing steel bars or mixed arrangement of the prestressed ribs and the common reinforcing steel bars. Because the prestress steel bars have the prepressing function on the prefabricated bottom plate, the prestress steel bars have the effect similar to a bucket with a hoop, the cracking resistance of the whole bottom plate can be enhanced, and the prefabricated bottom plate can be made thinner.
The utility model also discloses a building cover, which comprises the reinforced prefabricated bottom plate component and also comprises beams, walls or columns for supporting the prefabricated bottom plate component.
Claims (9)
1. A reinforced prefabricated floor element comprising:
prefabricating a bottom plate, a tubular unidirectional truss and a reinforced concrete narrow plate; the tubular unidirectional truss is arranged on the prefabricated bottom plate, and is a wavy whole hollow pipe or a whole steel bar which is continuously bent; the two groups of the tubular unidirectional trusses are fixedly connected or welded on two sides of the reinforced concrete narrow plate at the peak parts of the two groups of the tubular unidirectional trusses; or the tubular unidirectional trusses are a group, and the wave crest parts of the tubular unidirectional trusses are fixedly connected or welded on the bottom surface of the reinforced concrete narrow plate; the reinforced concrete narrow plate is a precast concrete plate, the width of the reinforced concrete narrow plate is larger than the maximum width of the tubular unidirectional truss and smaller than the width of the precast bottom plate.
2. A reinforced prefabricated floor unit according to claim 1, wherein: the cast-in-situ composite layer concrete is cast on the tubular unidirectional truss on site and covers the upper surface of the tubular unidirectional truss.
3. A reinforced prefabricated floor unit according to claim 1, wherein: the hollow tube can be filled with grouting material.
4. A reinforced prefabricated floor unit according to claim 1, wherein: longitudinal reinforcements can be arranged in the reinforced concrete narrow plates, and the longitudinal reinforcements can be steel bars, steel pipes, iron pipes, alloy pipes or plastic rods.
5. A reinforced prefabricated floor unit according to claim 1, wherein: the bottom of the tubular unidirectional truss directly passes through and is hooked on a reinforcement cage in the prefabricated bottom plate; or the bottoms of the tubular unidirectional trusses are connected with the prefabricated bottom plate through connecting pieces.
6. A reinforced prefabricated floor unit according to claim 1, wherein: the tubular unidirectional truss further comprises a lower chord rib or a pipe, and the bottom of the tubular unidirectional truss and the lower chord rib or the pipe are buried in the prefabricated bottom plate together; the lower chord rib or the pipe can be arranged in parallel with the tubular unidirectional truss or can be arranged vertically with the tubular unidirectional truss; the lower chord rib or the pipe can be arranged above the trough of the tubular unidirectional truss or below the trough of the tubular unidirectional truss.
7. A reinforced prefabricated floor unit according to claim 1, wherein: the prefabricated bottom plate is a strip-shaped integral bottom plate, is a reinforced concrete bottom plate or a cement mortar bottom plate, or is fiber concrete.
8. A reinforced prefabricated floor unit according to claim 1, wherein: the reinforcing ribs are arranged in the prefabricated bottom plate and arranged along the length direction of the prefabricated bottom plate, and the reinforcing ribs can be prestressed ribs or common reinforcing steel bars or mixed arrangement of the prestressed ribs and the common reinforcing steel bars.
9. A floor system, characterized in that: a reinforced prefabricated floor element comprising any of the preceding claims 1-8, further comprising a beam or wall or column supporting said prefabricated floor element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321592253.3U CN220184399U (en) | 2023-06-21 | 2023-06-21 | Reinforced prefabricated bottom plate component and floor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321592253.3U CN220184399U (en) | 2023-06-21 | 2023-06-21 | Reinforced prefabricated bottom plate component and floor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220184399U true CN220184399U (en) | 2023-12-15 |
Family
ID=89113040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321592253.3U Active CN220184399U (en) | 2023-06-21 | 2023-06-21 | Reinforced prefabricated bottom plate component and floor system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220184399U (en) |
-
2023
- 2023-06-21 CN CN202321592253.3U patent/CN220184399U/en active Active
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