CN217379453U - Concrete cell type composite floor slab free of truss reinforcing steel bars - Google Patents
Concrete cell type composite floor slab free of truss reinforcing steel bars Download PDFInfo
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- CN217379453U CN217379453U CN202121160208.1U CN202121160208U CN217379453U CN 217379453 U CN217379453 U CN 217379453U CN 202121160208 U CN202121160208 U CN 202121160208U CN 217379453 U CN217379453 U CN 217379453U
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- floor slab
- truss
- rib groove
- composite floor
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- 239000004567 concrete Substances 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title claims description 30
- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 27
- 238000009826 distribution Methods 0.000 claims abstract description 22
- 210000003205 muscle Anatomy 0.000 claims abstract description 20
- 239000011150 reinforced concrete Substances 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 9
- 238000009415 formwork Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 27
- 239000010959 steel Substances 0.000 description 27
- 239000010410 layer Substances 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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Abstract
The utility model relates to a concrete cell type coincide floor of truss reinforcing bar exempts from, including prefabricated bottom plate (1) and cast-in-place coincide layer (2) of setting on prefabricated bottom plate (1), prefabricated bottom plate (1) bottom parallel arrangement have a plurality of rib grooves (3), be provided with rib groove in rib groove (3) and indulge muscle (4) and rib groove distribution muscle (5), rib groove indulge muscle (4) set up inboard in rib groove (3) bottom, rib groove distribution muscle (5) and rib groove indulge muscle (4) and stretch out prefabricated bottom plate (1) top perpendicularly and both ends and get into cast-in-place coincide layer (2). Compared with the prior art, the utility model discloses can realize that the coincide floor avoids the truss reinforcing bar, the formwork is exempted from in the construction, exempts from to support.
Description
Technical Field
The utility model relates to an assembly type structure technical field, concretely relates to exempt from concrete cell type coincide floor of truss reinforcing bar.
Background
The floor slab is an important building structural member in the building, the truss reinforced concrete composite floor slab is characterized in that a whole pouring type floor slab is changed into a prefabricated part and a cast-in-place part according to the stress characteristics in use and manufacture, the prefabricated part is manufactured in a factory and then is transported to a construction site for hoisting and assembling, and truss steel bars are used as a part of prefabricated slab reinforcement. The truss reinforced concrete composite floor slab is widely applied to fabricated buildings, the truss steel bars provide rigidity for the concrete composite floor slab in the production and installation processes, the composite floor slab is prevented from being damaged due to insufficient rigidity in the production and construction processes, and the truss steel bars do not play a role after the composite floor slab is hoisted in place, so that the steel content of the truss reinforced concrete composite floor slab is increased and the truss reinforced concrete composite floor slab is not economical compared with a cast-in-place concrete floor slab; and the reinforcing mesh (single layer) at the bottom of the partial laminated floor slab needs to penetrate through the truss reinforcing steel bars, so that the production efficiency is low. The maximum span of the truss reinforced concrete composite floor slab is about 5 meters, the slab span exceeding 5 meters needs to be additionally provided with secondary beams to divide the floor slab into 5 meters, and the floor slab is in the form of a main beam, the secondary beams and the composite floor slab, so that the indoor net height is reduced, and the structural force transmission is complex.
The utility model patent CN201920351405.8 discloses a two-way truss reinforced concrete coincide floor, including prefabricated bottom plate and the superimposed layer that is located prefabricated bottom plate upper portion, be equipped with the two-way steel bar truss between prefabricated bottom plate and the superimposed layer, be equipped with the eave tile bolt on the prefabricated bottom plate, the two-way steel bar truss includes longitudinal steel bar truss and horizontal steel bar truss, the longitudinal steel bar is equipped with many, many longitudinal steel bar trusses are parallel and the interval setting along the width direction of prefabricated bottom plate, horizontal steel bar truss is equipped with two, two horizontal steel bar truss are parallel and the both ends that the interval set up at longitudinal steel bar truss, longitudinal steel bar truss and two horizontal steel bar trusses pass through eave tile bolt welded connection. The longitudinal steel bar truss and the transverse steel bar truss of the composite floor slab can integrally strengthen the structural strength of the composite floor slab, and can meet the building requirements of large-span plants, workshops, warehouses and the like, but the number of the steel bar trusses of the composite floor slab is too large, the steel content is large, and the economical efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an exempt from concrete cell type coincide floor of truss reinforcing bar can realize that the construction is exempted from the formwork, is exempted from to support.
The purpose of the utility model can be realized through the following technical scheme: the utility model provides a concrete cell type coincide floor of truss reinforcing bar exempts from, includes prefabricated bottom plate and the cast-in-place coincide layer of setting on prefabricated bottom plate, prefabricated bottom plate bottom parallel arrangement have a plurality of rib grooves, rib inslot is provided with the rib groove and indulges muscle and rib groove distribution muscle, the rib groove indulge the muscle setting inboard in rib groove bottom, rib groove distribution muscle and rib groove indulge the muscle and stretch out the prefabricated bottom plate top and get into cast-in-place coincide layer perpendicularly and both ends.
The utility model discloses in, prefabricated bottom plate is mill's processing, and the job site installation is taken one's place, and cast-in-place laminated layer of concrete that the cast-in-place pouring is not less than 60mm thick realizes the atress in coordination of laminated floor slab prefabricated part and cast-in-place part. The rib groove and the steel bars in the rib groove have two functions, firstly, rigidity is provided for the floor slab in the processes of demoulding and hoisting of the laminated floor slab, and demoulding and hoisting safety is ensured; secondly, the rib groove functions are similar to those of the secondary beam after being installed in place, and the size and the reinforcing bars of the rib groove can be calculated according to the span of the floor slab, so that the structural form of the large-span floor slab without the secondary beam is realized.
Preferably, the prefabricated bottom plate is internally provided with a laminated slab reinforcing mesh, and the laminated slab reinforcing mesh is arranged above the rib grooves. The laminated slab reinforcing mesh is provided with reinforcing steel bars which are distributed longitudinally and transversely, so that the condition that the concrete of the laminated floor slab has no cracks in the whole life cycle can be ensured, and the reinforcing steel bars are constructed according to the thickness of the floor slab.
Preferably, the top of the prefabricated base plate is rough. The rough surface and rib groove distribution ribs can provide horizontal shearing-resistant bearing capacity for the interface of the prefabricated bottom plate and the cast-in-place laminated layer, and the cooperative stress of the prefabricated bottom plate and the cast-in-place laminated layer is ensured.
Preferably, the rib groove is in an isosceles trapezoid structure with a large upper part and a small lower part. The shape is beautiful, and the rib groove is large at the upper part and small at the lower part, so that the demoulding in factory production can be facilitated.
Further preferably, the rib grooves are arranged in parallel and at equal intervals, and the distance between the tops of two adjacent rib grooves is the same as the width of the bottoms of the rib grooves.
Preferably, the cast-in-place laminated layer is internally provided with a floor slab upper reinforcing mesh.
Preferably, the middle part of the rib groove distribution rib is attached to the inner wall of the rib groove, and the end part of the rib groove distribution rib is parallel to the surface of the floor slab.
Preferably, additional reinforcing steel bars at seams are arranged between rib and groove distribution ribs in two adjacent rib and groove.
Preferably, the laminated floor slab is provided with hanging rings. The rings are common metal parts of the precast concrete component in the demolding and hoisting processes, the number of the rings can be set according to the plane size of a floor slab, the total length is even, and smooth installation of the precast concrete component is guaranteed.
Preferably, the rib groove longitudinal rib is longitudinally arranged along the rib groove, and two ends of the rib groove longitudinal rib extend out of the rib groove. The rib groove longitudinal ribs extending out of the rib grooves can be connected with the main beam.
The construction method of the truss reinforcement-free concrete groove-type composite floor slab comprises the following steps:
s1: calculating the sizes of the rib grooves and the rib groove longitudinal bars according to the floor slab span, and processing a prefabricated bottom plate bottom mould according to the designed size;
s2: binding rib groove longitudinal ribs, rib groove distribution ribs and a laminated slab reinforcing mesh according to requirements, then placing a hanging ring, and finally pouring concrete and maintaining to obtain a prefabricated bottom plate;
s3: after the concrete reaches the designed strength, demolding, transporting to a construction site, and hoisting the prefabricated bottom plate in place through the hoisting ring;
s4: and after the prefabricated bottom plate is in place, placing additional steel bars at the joint on site, binding a steel bar mesh on the upper part of the floor slab, pouring a cast-in-situ laminated layer by using concrete, and after the concrete is solidified, obtaining the truss-free reinforced concrete groove type laminated floor slab.
Compared with the prior art, the utility model has the advantages of it is following:
1. the rib groove of the utility model provides rigidity for the composite floor slab in the production and construction processes, ensures the safety of the composite floor slab in the demoulding and hoisting processes, is convenient to produce and construct, is a one-way stress plate, participates in the floor slab stress after the installation, and the size and the reinforcement of the rib groove need to be calculated according to the floor slab span, thereby realizing the requirement of the large span (7 meters and more) of the floor slab;
2. the structural floor system of the utility model can be arranged into a main beam and a groove-shaped superposed floor without arranging a secondary beam, thereby increasing the indoor clear height, having clear structural force transmission and reasonable stress;
3. the bottom of the floor slab is in a regular groove shape, so that the floor slab is rich in rhythm, the indoor appearance is simple and beautiful, secondary ceiling treatment is not needed, and the building structure integration can be realized;
4. the utility model discloses prefabricated bottom plate is for the mill processing, and the job site installation is taken one's place, and cast-in-place laminated layer is cast to the cast-in-place concrete that the site casting is not less than 60mm thick, realizes the atress in coordination of laminated floor slab prefabricated part and cast-in-place part, can realize the requirement that the job site floor slab exempts from formwork, exempts from to support simultaneously, satisfies the exempting from mould, exempts from to support the requirement in the assembled building, in order to improve prefabrication efficiency, assembly rate;
5. the utility model discloses need not to set up the truss reinforcing bar in the prefabricated bottom plate, prefabricated bottom plate steel content is less than traditional coincide floor, and the economic nature is more excellent.
Drawings
FIG. 1 is a front view of the prefabricated base plate of the present invention;
FIG. 2 is a cross-sectional view taken along plane A-A of FIG. 1;
FIG. 3 is a cross-sectional view of the prefabricated base plate and the cast-in-place laminated layer of the present invention;
fig. 4 is a schematic view of the connection between the composite floor slab and the main beam of the present invention;
in the figure: 1-prefabricated bottom plate, 2-cast-in-place laminated layer, 3-rib groove, 4-rib groove longitudinal rib, 5-rib groove distribution rib, 6-laminated slab reinforcing mesh, 7-floor slab upper reinforcing mesh, 8-joint additional reinforcing bar, 9-hanging ring and 10-main beam.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation processes are given, but the scope of the present invention is not limited to the following examples.
Example 1
The utility model provides a concrete cell type coincide floor of truss reinforcing bar exempts from, as shown in fig. 1 ~ 3, including prefabricated bottom plate 1, cast-in-place superimposed layer 2, rib groove 3, rib groove vertical bar 4, rib groove distribution muscle 5, superimposed sheet reinforcing mesh 6, floor upper portion reinforcing mesh 7, joint department additional reinforcement 8 and rings 9, prefabricated bottom plate 1 top is coarse, bottom parallel arrangement has a plurality of the same rib grooves 3, rib groove 3 is big-end-up's isosceles trapezoid body structure, 3 bottom both corners inboard at every rib groove respectively vertically is provided with a rib groove vertical bar 4, and rib groove vertical bar 4 both ends all stretch out rib groove 3, still be equipped with rib groove distribution muscle 5 in the rib groove 3, rib groove 5 is perpendicular with 3 longitudinal direction in the rib groove, the middle section laminating rib groove 3 inner wall and both ends stretch out prefabricated bottom plate 1 top and get into superimposed layer 2, and both ends are parallel with the face. The rib groove longitudinal ribs 4 are vertically connected with rib groove distribution ribs 5, the joints are positioned at two corners at the bottom of the rib grooves 3, and the rib groove longitudinal ribs 4 at the joints are positioned at the upper sides of the rib groove distribution ribs 5. The prefabricated bottom plate 1 is also internally provided with a laminated slab reinforcing mesh 6, the laminated slab reinforcing mesh 6 is positioned above the rib grooves 3, the two ends of the rib groove distribution ribs 5 penetrate through the laminated slab reinforcing mesh 6, seam joint additional reinforcing steel bars 8 are also arranged between the rib groove distribution ribs 5 in the two adjacent rib grooves 3, and the connection between the rib groove distribution ribs 5 is strengthened. The prefabricated bottom plate 1 is also symmetrically provided with a plurality of hanging rings 9, and a floor slab upper reinforcing mesh 7 is arranged at the upper position inside the cast-in-place superposed layer 2.
A construction method of the truss reinforcement-free concrete groove type composite floor slab comprises the following steps:
s1: calculating the sizes of the rib groove 3 and the rib groove longitudinal bar 4 according to the floor slab span, and processing a prefabricated bottom plate bottom mould according to the design size in a factory;
s2: binding rib-groove longitudinal ribs 4, rib-groove distribution ribs 5 and laminated slab reinforcing mesh 6 according to requirements, then placing a lifting ring 9, and finally pouring concrete and maintaining to obtain a prefabricated bottom plate 1;
s3: after the concrete reaches the designed strength, demolding, transporting to a construction site, and hoisting the prefabricated bottom plate 1 in place through the hoisting ring 9;
s4: placing the additional steel bars 8 at the joints on site after the prefabricated bottom plate 1 is in place, binding the steel bar mesh 7 at the upper part of the floor slab, pouring the cast-in-situ laminated layer 2 by using concrete, and obtaining the truss-free steel bar concrete groove type laminated floor slab after the concrete is solidified.
When being connected this coincide floor with girder 10, as shown in fig. 4, only the rib groove is indulged muscle 4 anchors into girder 10, and the muscle quantity of indulging that stretches into girder 10 is few for the rib groove is indulged muscle 4 and is easily dodged with the girder reinforcing bar, makes things convenient for the hoist and mount installation of on-the-spot coincide floor, treats girder 10 reinforcement completion, pours the concrete simultaneously with superimposed layer 2, treats after the concrete solidification, just forms reliable anchor node.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. The utility model provides a concrete cell type coincide floor of exempting from truss reinforcing bar, includes prefabricated bottom plate (1) and sets up cast-in-place coincide layer (2) on prefabricated bottom plate (1), a serial communication port, prefabricated bottom plate (1) bottom parallel arrangement have a plurality of rib grooves (3), be provided with rib groove in rib groove (3) and indulge muscle (4) and rib groove distribution muscle (5), rib groove indulge muscle (4) and set up inboard in rib groove (3) bottom, rib groove distribution muscle (5) and rib groove indulge muscle (4) and stretch out prefabricated bottom plate (1) top and get into cast-in-place coincide layer (2) perpendicularly and both ends.
2. The truss-free reinforced concrete channel-type composite floor slab as claimed in claim 1, wherein the prefabricated bottom plate (1) is further provided with a laminated slab mesh reinforcement (6), and the laminated slab mesh reinforcement (6) is arranged above the rib grooves (3).
3. The truss-free reinforced concrete channel-type composite floor slab as claimed in claim 1, wherein the prefabricated bottom slab (1) is rough on top.
4. The truss reinforced concrete channel type composite floor slab as claimed in claim 1, wherein the rib channel (3) is of an isosceles trapezoid structure with a large top and a small bottom.
5. The truss-free concrete channel-type composite floor slab as claimed in claim 4, wherein the rib grooves (3) are arranged in parallel and at equal intervals, and the distance between the tops of two adjacent rib grooves (3) is the same as the width of the bottoms of the rib grooves (3).
6. The truss-free reinforced concrete channel-type composite floor slab as claimed in claim 1, wherein the cast-in-place composite layer (2) is provided with a floor slab upper reinforcing mesh (7).
7. The truss-free reinforced concrete channel-type composite floor slab as claimed in claim 1, wherein the middle part of the rib-channel distribution rib (5) is attached to the inner wall of the rib channel (3), and the end part is parallel to the slab surface of the floor slab.
8. The truss reinforced concrete channel type composite floor slab as claimed in claim 1, wherein the joint additional reinforcing steel bar (8) is provided between the rib channel distribution ribs (5) in two adjacent rib channels (3).
9. The truss-free reinforced concrete channel-type composite floor slab as claimed in claim 1, wherein the composite floor slab is provided with hanging rings (9).
10. The truss-free concrete channel-type composite floor slab as claimed in claim 1, wherein the longitudinal rib (4) is disposed longitudinally along the rib channel (3) and extends out of the rib channel (3) at both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121160208.1U CN217379453U (en) | 2021-05-27 | 2021-05-27 | Concrete cell type composite floor slab free of truss reinforcing steel bars |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121160208.1U CN217379453U (en) | 2021-05-27 | 2021-05-27 | Concrete cell type composite floor slab free of truss reinforcing steel bars |
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| CN217379453U true CN217379453U (en) | 2022-09-06 |
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| CN202121160208.1U Active CN217379453U (en) | 2021-05-27 | 2021-05-27 | Concrete cell type composite floor slab free of truss reinforcing steel bars |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120401727A (en) * | 2025-07-07 | 2025-08-01 | 中闽建研工业化建筑有限公司 | A UHPC lightweight floor prefabricated component and its forming method |
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2021
- 2021-05-27 CN CN202121160208.1U patent/CN217379453U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120401727A (en) * | 2025-07-07 | 2025-08-01 | 中闽建研工业化建筑有限公司 | A UHPC lightweight floor prefabricated component and its forming method |
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