CN215978031U - Ribbed reinforced concrete precast slab and laminated floor slab - Google Patents
Ribbed reinforced concrete precast slab and laminated floor slab Download PDFInfo
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- CN215978031U CN215978031U CN202121905323.7U CN202121905323U CN215978031U CN 215978031 U CN215978031 U CN 215978031U CN 202121905323 U CN202121905323 U CN 202121905323U CN 215978031 U CN215978031 U CN 215978031U
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- 239000011150 reinforced concrete Substances 0.000 title abstract 6
- 210000000614 Ribs Anatomy 0.000 abstract 6
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000004567 concrete Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
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Abstract
The utility model discloses a ribbed reinforced concrete precast slab and a laminated floor slab, wherein the ribbed reinforced concrete precast slab comprises precast ribs, a connecting assembly and a precast bottom plate, at least two precast ribs are distributed on the precast bottom plate at intervals along the length direction, the precast ribs and the precast bottom plate are connected together through the connecting assembly, the connecting assembly comprises a plurality of tubular bodies and connecting ribs, the connecting ribs sequentially penetrate through the plurality of tubular bodies which are distributed at intervals, the top ends of the tubular bodies are anchored in the precast ribs, and the bottom ends of the tubular bodies are anchored in the precast bottom plate. The laminated floor slab comprises the ribbed reinforced concrete precast slab and a cast-in-place layer, wherein the concrete of the cast-in-place layer covers the upper surface of the ribbed reinforced concrete precast slab, and the cast-in-place layer and the precast bottom plate are anchored together to form the integral laminated floor slab. The ribbed reinforced concrete precast slab and the laminated floor slab have the advantages of low production difficulty, simple mold, small steel consumption and good stress performance.
Description
Technical Field
The utility model belongs to the technical field of assembly type buildings, and particularly relates to a ribbed reinforced concrete precast slab and a laminated floor slab.
Background
In the fabricated building, in order to improve the construction efficiency and quality, the floor slabs are prefabricated in a factory, and then two floor slabs are cast in situ to form an integral structure in a construction site. In order to enhance the integrity of the connection between the floor slabs, the common mode is the composite floor slab, although the integrity of the composite floor slab is better, the field wet operation is more, the environmental pollution is greater, a large amount of templates and supports are needed, and the construction efficiency is lower. The laminated floor slab is a prefabricated component which is produced most, a prefabricated layer is produced in a factory, then the prefabricated layer is hoisted to a construction site, stressed steel bars are placed on the upper surface of the prefabricated layer, and a cast-in-place layer is poured. In the flow production of the laminated floor slab, the most influencing production rhythm is the replacement of a mould and the binding of reinforcing steel bars. If can shorten the retooling time, the reinforcement is accomplished in advance, directly hoists to the bench formwork of production line on, improvement production efficiency that will be great. For example, the technical scheme of the prior application 200610147101.7 'a reinforced concrete ribbed precast slab' has the following defects: (1) the long concrete ribs and the precast slabs need to be poured at the same time, and formwork support is difficult. (2) The holes of the bottom plate need to be formed by placing foam, and the die is complex. For example, the prior application 202011539327.8 prefabricated composite floor slab has the main disadvantages that: the steel bar truss is connected with the concrete rib, and the steel consumption is large. For example, the prior application 202110206731.1 "a combined prestressed composite floor slab" has the main disadvantages that: (1) the anchoring reinforcing steel bars are not integrally connected, and the binding workload is large. (2) The trapezoidal hole needs to be placed with foam to form a hole, and the die is complex. (3) The anchoring reinforcing steel bars are three-dimensional reinforcing steel bars, and the processing difficulty is high.
In view of the above, it is desirable to provide a ribbed reinforced concrete precast slab and a laminated floor slab with low production difficulty, simple mold, small steel consumption and good stress performance, so as to solve the technical problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the ribbed reinforced concrete precast slab and the laminated floor slab have the advantages of low production difficulty, simple mould, small steel consumption and good stress performance, and are used for solving the technical problems in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the ribbed reinforced concrete precast slab comprises precast ribs, a connecting assembly and a precast bottom plate, wherein at least two precast ribs are distributed on the precast bottom plate at intervals along the length direction, the precast ribs are connected with the precast bottom plate through the connecting assembly, the connecting assembly comprises a plurality of tubular bodies and connecting ribs, the connecting ribs sequentially penetrate through the plurality of tubular bodies which are distributed at intervals, the top ends of the tubular bodies are anchored in the precast ribs, and the bottom ends of the tubular bodies are anchored in the precast bottom plate.
On the basis of the above solution, in another improved solution, the connecting ribs are anchored in the prefabricated floor.
On the basis of the scheme, in another improved scheme, the number of the connecting ribs is two, the two connecting ribs are arranged in parallel and comprise upper connecting ribs and lower connecting ribs, and the upper connecting ribs and the lower connecting ribs penetrate through the tubular body and are respectively anchored in the prefabricated ribs and the prefabricated bottom plate.
On the basis of the scheme, in another improved scheme, the tubular body is of a hollow structure with an open top end and an open bottom end.
On the basis of the scheme, in another improved scheme, the tubular body is a hexagonal or cylindrical or square steel pipe, and the side wall of the tubular body is provided with a pair of through holes for penetrating the connecting ribs.
On the basis of the scheme, in another improved scheme, the top end and the bottom end of the tubular body are provided with sawtooth structures or convex structures or anchoring bolts.
On the basis of the scheme, in another improved scheme, the precast ribs are made of concrete or ultra-high performance concrete.
On the basis of the scheme, in another improved scheme, a steel mesh is arranged in the prefabricated bottom plate.
The utility model also discloses a laminated floor slab, which comprises the ribbed reinforced concrete precast slab and a cast-in-place layer, wherein the concrete of the cast-in-place layer covers the upper surface of the ribbed reinforced concrete precast slab, and the cast-in-place layer and the precast bottom plate are anchored together to form the integral laminated floor slab.
On the basis of the scheme, in another improved scheme, the cast-in-place floor further comprises a plurality of upper stress bars placed on the prefabricated floor, the upper stress bars are placed between two adjacent tubular bodies and are perpendicular to the prefabricated ribs, and the upper stress bars are anchored in the cast-in-place layer.
The technical scheme of the utility model has the beneficial technical effects that:
(1) according to the ribbed reinforced concrete prefabricated slab, the prefabricated ribs are independent components and can be connected and fixed with the prefabricated bottom plate together after being independently produced, so that the prefabricated bottom plate only needs to be provided with the side mold during production, and the mold is simple; the prefabricated ribs are small in steel consumption, the top ends and the bottom ends of the connecting assemblies are respectively anchored in the concrete of the prefabricated ribs and the prefabricated bottom plate, production operation is simple, and additional molds are not needed; the connecting assembly is directly placed on the steel bar mesh sheet of the prefabricated plate, so that the prefabricated ribs can be installed and fixed, the production difficulty is low, the rigidity of the connecting assembly is high, and the stress performance is good.
(2) According to the composite floor slab, the prefabricated ribs play a role in connecting the prefabricated bottom plate and the cast-in-place layer, and the prefabricated ribs and the connecting assembly are connected in series to form the cast-in-place layer and the prefabricated bottom plate to bear force together, so that a stable truss stress structure can be formed; the prefabricated ribs and the connecting components are arranged at intervals, and gaps between the adjacent connecting components can facilitate the penetration of the electric pipelines and the upper stress steel bars.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.
FIG. 1 is a schematic perspective view illustrating a prefabricated ribbed reinforced concrete slab according to example 1;
FIG. 2 is a schematic view showing the construction of a prefabricated rib and a connecting member in example 1;
fig. 3 is a schematic perspective view of a connecting member according to embodiment 1;
FIG. 4 is a schematic view of the structure of a tubular body in example 1;
FIG. 5 is a cross-sectional view of FIG. 2 in the vertical direction;
FIG. 6 is a longitudinal sectional view of a ribbed reinforced concrete precast slab in the direction of a precast rib in a modification of example 1;
fig. 7 is a transverse sectional view of the ribbed reinforced concrete precast slab in a direction perpendicular to the precast ribs in accordance with a modification of example 1.
Reference numerals:
1-prefabricated rib 2-connecting component 3-prefabricated bottom plate
4-tubular body 5-upper connecting rib 6-lower connecting rib
7-reinforcing mesh 8-pair perforation 9-sawtooth structure
Detailed Description
The present invention will now be described in detail with reference to the drawings, which are given by way of illustration and explanation only and should not be construed to limit the scope of the present invention in any way. Furthermore, features from embodiments in this document and from different embodiments may be combined accordingly by a person skilled in the art from the description in this document.
Example 1
Referring to the schematic drawings of fig. 1 to 7, the ribbed reinforced concrete precast slab in the embodiment includes prefabricated ribs 1, a connection assembly 2 and a prefabricated bottom plate 3, at least two prefabricated ribs 1 are distributed on the prefabricated bottom plate 3 at intervals along the length direction, the prefabricated ribs 1 and the prefabricated bottom plate 3 are connected together through the connection assembly 2, the connection assembly 2 includes a plurality of tubular bodies 4 and connection bars, the connection bars sequentially penetrate through the plurality of tubular bodies 4 arranged at intervals, the top ends of the tubular bodies 4 are anchored in the prefabricated ribs 1, and the bottom ends of the tubular bodies 4 are anchored in the prefabricated bottom plate 3. According to the ribbed reinforced concrete precast slab, the precast ribs 1 are independent members and can be connected and fixed with the precast bottom plate 3 after being produced independently, so that the precast bottom plate 3 only needs to be provided with the side mold during production, and the mold is simple; the prefabricated rib 1 uses less steel, and the top and the bottom of coupling assembling 2 anchor respectively in the concrete of prefabricated rib 1 and prefabricated bottom plate 3, and production easy operation need not to put the mould in addition. During production, the connecting component 2 is installed, then the prefabricated rib 1 is produced, the connecting component 2 is turned upside down, and the top end of the connecting component is anchored in concrete of the prefabricated rib 1; and after the prefabricated rib 1 is cured and formed, demolding and taking out. When the prefabricated bottom plate 3 is produced, the side forms are arranged firstly, concrete is poured, then the bottom ends of the connecting assemblies 2 are placed in the concrete, and the side forms are taken down after curing and forming.
On the basis of the above-described embodiment, in a further improved embodiment, the tie bars are anchored in the prefabricated floor 3. By this arrangement, the connection strength between the connecting members 2 and the prefabricated base plate 3 can be further enhanced, thereby enhancing the integrity between the prefabricated ribs 1, the connecting members 2 and the prefabricated base plate 3.
Referring to the schematic drawings of fig. 2 and 3, in another modified embodiment, on the basis of the above embodiment, the number of the connecting ribs is two, and the two connecting ribs are arranged in parallel and comprise an upper connecting rib 5 and a lower connecting rib 6, the upper connecting rib 5 and the lower connecting rib 6 both penetrate through the upper part and the lower part of the tubular body 4, and the upper connecting rib 5 and the lower connecting rib 6 are respectively anchored in the prefabricated rib 1 and the prefabricated base plate 3.
On the basis of the above embodiment, in another modified embodiment, the tubular body 4 is a hollow structure with both top and bottom ends open. With this arrangement, when the tubular body 4 is anchored with the concrete of the prefabricated rib 1 and the prefabricated floor 3, the concrete enters the tubular body 4, and the anchoring strength between the tubular body 4 and the concrete can be further enhanced, so that the connection strength between the prefabricated rib 1, the connection assembly 2 and the prefabricated floor 3 can be enhanced.
Referring to fig. 3 and 4, in the present embodiment, the tubular body 4 is cylindrical, and the side wall of the tubular body 4 is provided with through holes 8 for inserting the connection ribs; the connecting ribs pass through the pair of perforations 8 in the side walls. In other modified embodiments, the tubular body 4 is a hexagonal or square steel tube.
Referring to fig. 3 to 5, in this embodiment, the top and bottom ends of the tubular body 4 are provided with a serration structure 9, which improves the pullout resistance of the tubular body 4 in the concrete of the prefabricated rib 1 and the prefabricated floor 3. In a further improved embodiment, both the top and bottom ends of the tubular body 4 are provided with protruding structures or anchors.
On the basis of the above embodiment, in another modified embodiment, the precast rib 1 is made of concrete or ultra-high performance concrete. When the prefabricated rib 1 is prepared by adopting the ultra-high performance concrete, the strength and the crack resistance of the prefabricated rib 1 can be further improved.
Referring to the schematic drawings of fig. 6 and 7, on the basis of the above embodiment, in another modified embodiment, a reinforcing mesh 7 is arranged in the prefabricated bottom plate 3. Set up like this, coupling assembling 2 directly places on the reinforcing bar net piece 7 of prefabricated plate, can be fixed with prefabricated rib 1 installation, and the production degree of difficulty is low, and coupling assembling 2 rigidity is great own, and the atress performance is good.
Example 2
The embodiment discloses a laminated floor slab, which comprises the ribbed reinforced concrete precast slab and a cast-in-place layer in the embodiment 1, wherein the concrete of the cast-in-place layer covers the upper surface of the ribbed reinforced concrete precast slab, and the cast-in-place layer and a precast bottom plate 3 are anchored together to form the integral laminated floor slab. Referring to the schematic drawings of fig. 1 and 7, after the side formwork is erected, the concrete of the cast-in-place layer is poured on the prefabricated base plate 3, then the prefabricated base plate is maintained and formed, and the connecting assembly 2 and a part of the prefabricated rib 1 are anchored in the concrete of the cast-in-place layer, so that the prefabricated plate and the cast-in-place layer are combined into a whole.
On the basis of the above embodiment, in another improved embodiment, the prefabricated floor further comprises a plurality of upper stress bars placed on the prefabricated floor 3, the upper stress bars are placed between two adjacent tubular bodies 4 and are perpendicular to the prefabricated ribs 1, and the upper stress bars are anchored in the cast-in-place layer. By the arrangement, the stress performance of the cast-in-place layer can be improved, and the upper stress rib is arranged between the two adjacent tubular bodies 4, so that the direct integrity and the stress performance of the cast-in-place layer and the precast slab are further enhanced.
In this embodiment the upper surface of the cast-in-place layer is flush with the upper surface of the prefabricated rib 1 and in a further improved embodiment the upper surface of the cast-in-place layer is higher than the upper surface of the prefabricated rib 1, i.e. the prefabricated rib 1 is fully anchored in the cast-in-place layer.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The ribbed reinforced concrete precast slab is characterized by comprising precast ribs, a connecting assembly and a precast bottom plate, wherein at least two precast ribs are distributed on the precast bottom plate at intervals along the length direction, the precast ribs are connected with the precast bottom plate through the connecting assembly, the connecting assembly comprises a plurality of tubular bodies and connecting ribs, the connecting ribs sequentially penetrate through the plurality of tubular bodies which are distributed at intervals, the top ends of the tubular bodies are anchored in the precast ribs, and the bottom ends of the tubular bodies are anchored in the precast bottom plate.
2. The ribbed reinforced concrete precast slab according to claim 1, wherein the coupling rib is anchored in the precast floor slab.
3. The ribbed reinforced concrete precast slab according to claim 1, wherein the number of the connection ribs is two in parallel, including an upper connection rib and a lower connection rib, both of which pass through the tubular body and are anchored in the precast rib and the precast floor, respectively.
4. The ribbed reinforced concrete prefabricated panel according to claim 1, wherein the tubular body has a hollow structure open at both top and bottom ends.
5. The ribbed reinforced concrete precast slab according to any one of claims 1 to 4, wherein the tubular body is a hexagonal or cylindrical or square steel pipe, and the side wall of the tubular body is provided with a pair of through holes for passing the connection ribs.
6. The ribbed reinforced concrete prefabricated panel according to claim 5, wherein both top and bottom ends of the tubular body are provided with a saw-tooth structure or a protrusion structure or an anchor.
7. The ribbed reinforced concrete precast slab according to claim 5, wherein the precast rib is made of concrete or ultra high performance concrete.
8. The ribbed reinforced concrete precast slab according to claim 5, wherein a steel mesh sheet is provided in the precast floor panel.
9. A laminated floor slab comprising prefabricated ribbed reinforced concrete panels as claimed in any one of claims 1 to 8 and a cast-in-place layer, the concrete of the cast-in-place layer covering the upper surfaces of the prefabricated ribbed reinforced concrete panels, the cast-in-place layer and the prefabricated bottom panels being anchored together to form an integral laminated floor slab.
10. A composite floor slab as defined in claim 9, further comprising a plurality of upper load bars disposed on said prefabricated floor slab, said upper load bars being disposed between adjacent ones of said tubular bodies, said upper load bars being perpendicular to said prefabricated ribs, said upper load bars being anchored in said cast-in-place layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121905323.7U CN215978031U (en) | 2021-08-13 | 2021-08-13 | Ribbed reinforced concrete precast slab and laminated floor slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121905323.7U CN215978031U (en) | 2021-08-13 | 2021-08-13 | Ribbed reinforced concrete precast slab and laminated floor slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215978031U true CN215978031U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121905323.7U Active CN215978031U (en) | 2021-08-13 | 2021-08-13 | Ribbed reinforced concrete precast slab and laminated floor slab |
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| Country | Link |
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| CN (1) | CN215978031U (en) |
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- 2021-08-13 CN CN202121905323.7U patent/CN215978031U/en active Active
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