CN215716433U - Prefabricated assembled steel reinforced concrete cavity coincide floor - Google Patents
Prefabricated assembled steel reinforced concrete cavity coincide floor Download PDFInfo
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- CN215716433U CN215716433U CN202121896896.8U CN202121896896U CN215716433U CN 215716433 U CN215716433 U CN 215716433U CN 202121896896 U CN202121896896 U CN 202121896896U CN 215716433 U CN215716433 U CN 215716433U
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- bottom plate
- concrete
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 85
- 239000010959 steel Substances 0.000 title claims abstract description 85
- 239000011150 reinforced concrete Substances 0.000 title claims description 14
- 239000004567 concrete Substances 0.000 claims abstract description 36
- 239000011374 ultra-high-performance concrete Substances 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims description 15
- 238000010276 construction Methods 0.000 abstract description 15
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 4
- 238000009417 prefabrication Methods 0.000 abstract description 3
- 229910000746 Structural steel Inorganic materials 0.000 abstract description 2
- 238000009415 formwork Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract description 2
- 230000007306 turnover Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The utility model provides a prefabricated assembled shaped steel concrete cavity coincide floor, includes: prefabricating a bottom plate; the lower part of the profile steel is arranged in the prefabricated bottom plate; the longitudinal ribs are arranged above the prefabrication and are parallel to the length direction of the section steel; the closed stirrups are arranged on the peripheries of the section steel and the longitudinal bars and are perpendicular to the length direction of the section steel; and the cast-in-place concrete top plate is arranged at the top of the section steel. The structural steel is arranged in the prefabricated bottom plate, and the prefabricated bottom plate is made of the ultra-high performance concrete, so that the bearing capacity, the durability and the anti-seismic performance of the structure are improved. The section steel arranged in the prefabricated bottom plate can be used as a template during concrete pouring, so that the using amount of the template and complex formwork supporting and removing procedures are reduced, and the construction efficiency and the turnover rate of the template are improved. The pore in the plate meets the requirements of sound insulation and heat preservation, is favorable for the arrangement of the water heating electric pipeline, reduces the using amount of concrete on the premise of not reducing the bearing capacity, and greatly reduces the construction cost.
Description
Technical Field
The invention belongs to the technical field of buildings, and particularly relates to a prefabricated assembly type steel reinforced concrete hollow composite floor slab.
Background
The floor serves as an important structural member, and not only plays a role in bearing and transmitting vertical loads, but also plays a role in resisting wind loads and horizontal seismic forces. Today, the selection of proper floor slabs plays an important role in structural stress, functional requirements and economic benefits, and how to select and design the structural forms of the floor slabs is also an examination and challenge.
The existing floor structure has the problems of insufficient comfort, poor sound insulation effect, low prefabrication and assembly degree and the like. With the development of building construction technology, the development of fabricated concrete structures has been advanced. Compared with a cast-in-place structure, the prefabricated structure can realize industrial production, is not limited by natural environment and construction conditions, can realize batch production, and has certain defects such as poor overall performance, poor anti-seismic performance, poor impermeability when being connected with other parts and the like.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a prefabricated assembly type steel reinforced concrete hollow composite floor slab which has the advantages of cast-in-place and assembly type structures, overcomes the defects of the two structures, and has the advantages of high bearing capacity, good crack resistance, high rigidity and the like.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a prefabricated assembled shaped steel concrete cavity coincide floor, includes:
prefabricating a bottom plate;
the lower part of the profile steel is arranged in the prefabricated bottom plate;
the longitudinal ribs are arranged above the prefabricated bottom plate and are parallel to the length direction of the section steel;
the closed stirrups are arranged on the peripheries of the section steel and the longitudinal bars and are perpendicular to the length direction of the section steel;
and
and the cast-in-place concrete top plate is arranged at the top of the section steel.
The lower part of the closed stirrup is positioned in the prefabricated bottom plate, the longitudinal bar is bound inside the stirrup, and the prefabricated bottom plate, the stirrup, the longitudinal bar and the section steel are all prefabricated parts.
And the lower flange and the lower part of the web plate of the section steel are arranged in the prefabricated bottom plate.
The section steel is I-shaped steel or H-shaped steel.
The longitudinal ribs are arranged above the upper flange of the section steel.
The section steel, the longitudinal ribs and the closed stirrups form web parts, and hollow parts are formed between the adjacent web parts.
The present invention may further comprise:
the longitudinal ribs are arranged in the prefabricated bottom plate and are parallel to the length direction of the section steel;
and a plurality of transverse steel bars which are arranged in the prefabricated bottom plate and are vertical to the length direction of the section steel.
And the two ends of the longitudinal steel bar and the transverse steel bar extend out of the prefabricated bottom plate.
The concrete adopted by the prefabricated bottom plate is ultra-high performance concrete, and the concrete adopted by the cast-in-place concrete top plate is common concrete.
Compared with the prior art, the invention has the beneficial effects that:
(1) the structural performance is improved.
The prefabricated bottom plate is internally provided with the profile steel, so that the bending rigidity, the bearing capacity and the seismic performance of the structure are improved. Compared with common concrete, the prefabricated bottom plate adopts UHPC, and the ductility and the durability of the structure are further improved. The pore canal formed in the middle of the web reduces the using amount of concrete, lightens the self weight of the structure and improves the anti-seismic performance of the structure.
(2) The construction is convenient.
The prefabricated steel pipe is of a prefabricated structure, a prefabricated part is prefabricated in a factory in advance, assembling, splicing and concrete pouring are carried out on a construction site, and construction efficiency is improved. The section steel can play the effect of part template when pouring the roof concrete, has reduced the process of formwork and form removal, can accelerate work progress and flow greatly.
(3) The manufacturing cost is reduced.
In the steel reinforced concrete hollow floor slab, only the UHPC is adopted in the prefabricated bottom plate, and the common concrete is adopted in the cast-in-place part of the top plate, so that the minimum reinforcement ratio limit value of the floor slab reinforcing steel bars can be reduced, and the consumption of the reinforcing steel bars is reduced relative to that of high-strength concrete. Meanwhile, the structural steel is arranged, so that a pore passage is formed in the floor slab, the using amount of concrete is greatly reduced, the construction cost is saved, and the construction cost is reduced.
Generally speaking, compared with the traditional floor slab, the prefabricated steel reinforced concrete hollow composite floor slab solves some key problems existing in the traditional floor slab, simplifies the construction process, improves the construction efficiency, can give full play to the stress performance, can effectively reduce the construction cost, has very high economic benefit, and can be widely applied to various reinforced concrete and steel structure buildings
Drawings
Fig. 1 is an overall structure schematic diagram of the prefabricated assembly type steel reinforced concrete hollow composite floor slab.
Fig. 2 is a schematic diagram of a prefabricated part of the prefabricated assembly type steel reinforced concrete hollow composite floor slab.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1 and 2, a prefabricated assembly type steel reinforced concrete hollow composite floor slab includes:
the prefabricated bottom plate 1 is a prefabricated part and is made of ultra-high performance concrete.
The section steel 2 is a plurality of prefabricated parts, can adopt I-shaped steel or H-shaped steel and the like, and the lower part of the section steel is embedded in the prefabricated bottom plate 1. Illustratively, the lower flange and the lower part of the web of the section steel 2 are embedded in the prefabricated floor 1
The longitudinal ribs 3 are a plurality of prefabricated members, are arranged above the prefabricated bottom plate 1 and are parallel to the length direction of the section steel 2. Illustratively, above the upper flange of the section steel 2.
Closed stirrup 6 has a plurality of, for the prefab, sets up in shaped steel 2 and indulges 3 peripheral settings of muscle and perpendicular to 2 length direction of shaped steel, promptly, with shaped steel 2 with indulge the muscle 3 including encircleing the parcel. Thus, the lower part of the closure stirrup 6 is also located in the prefabricated floor panel 1, while the longitudinal bars 3 can be bound inside the closure stirrup 6.
The cast-in-place concrete top plate 7 is a cast-in-place part, is arranged on the top of the section steel 2 and is formed by pouring common concrete.
The profile steel 2, the longitudinal ribs 3 and the closed stirrups 6 form web portions, and the adjacent web portions form hollow portions after casting concrete in situ.
Furthermore, the invention can also comprise a plurality of longitudinal steel bars 4 and a plurality of transverse steel bars 5 which are arranged in the prefabricated bottom plate 1 and are respectively parallel and vertical to the length direction of the section steel 2, and both ends of the prefabricated bottom plate 1 extend out when in prefabrication.
The construction method comprises the following steps:
firstly, the section steel 2, the longitudinal ribs 3 and the prefabricated bottom plate 1 of the section steel concrete hollow composite floor slab are prefabricated in a factory, and then the cast-in-place concrete top plate 7 is poured in a construction site. The section steel 2, the longitudinal bars 3, the longitudinal bars 4 and the transverse bars 5 are exposed. Wherein the cast-in-place concrete can be ordinary concrete. Through the mutual combination of the prefabricated web plates in different forms and the cast-in-place top plates in different forms, the prefabricated web plates have respective performance characteristics and advantages, and are suitable for different engineering condition requirements.
In the invention, the section steel 2 is arranged in the prefabricated bottom plate 1, and the prefabricated bottom plate 1 adopts the ultra-high performance concrete, so that the bearing capacity, the durability and the anti-seismic performance of the structure are improved. The section steel 2 arranged in the prefabricated bottom plate 1 can be used as a template in concrete pouring, so that the using amount of the template and complex template supporting and removing procedures are reduced, and the construction efficiency and the template turnover rate are improved. The hollow part in the plate is used as a pore channel, so that the requirements of sound insulation and heat preservation and heat insulation are met, the arrangement of a water heating electric pipeline is facilitated, the using amount of concrete is reduced on the premise of not reducing the bearing capacity, and the construction cost is greatly reduced.
Claims (9)
1. The utility model provides a prefabricated assembled shaped steel concrete cavity coincide floor which characterized in that includes:
prefabricating a bottom plate (1);
the lower part of the profile steel (2) is arranged in the prefabricated bottom plate (1);
a plurality of longitudinal ribs (3) which are arranged above the prefabricated bottom plate (1) and are parallel to the length direction of the section steel (2);
a plurality of closed stirrups (6) which are arranged at the periphery of the section steel (2) and the longitudinal ribs (3) and are vertical to the length direction of the section steel (2);
and
and the cast-in-place concrete top plate (7) is arranged at the top of the section steel (2).
2. The prefabricated assembled type steel reinforced concrete hollow composite floor slab as claimed in claim 1, wherein the lower part of the closed stirrups (6) is positioned in the prefabricated bottom plate (1), the longitudinal bars (3) are bound inside the stirrups (6), and the prefabricated bottom plate (1), the closed stirrups (6), the longitudinal bars (3) and the section steel (2) are all prefabricated parts.
3. The prefabricated assembly type section steel concrete hollow composite floor slab as claimed in claim 1, wherein the lower flange and the lower portion of the web of the section steel (2) are arranged in the prefabricated bottom slab (1).
4. The prefabricated assembly type steel reinforced concrete hollow composite floor slab as claimed in claim 1, wherein the section steel (2) is an I-shaped steel or an H-shaped steel.
5. The prefabricated assembly type section steel concrete hollow composite floor slab as claimed in claim 1, wherein said section steel (2), said longitudinal bars (3) and said closed stirrups (6) constitute web portions, and a hollow portion is formed between adjacent web portions.
6. The prefabricated assembly type section steel concrete hollow composite floor slab as claimed in claim 1, wherein said longitudinal bar (3) is disposed above the upper flange of the section steel (2).
7. The prefabricated assembly type steel reinforced concrete hollow composite floor slab as claimed in claim 1, further comprising:
a plurality of longitudinal steel bars (4) which are arranged in the prefabricated bottom plate (1) and are parallel to the length direction of the section steel (2);
and a plurality of transverse steel bars (5) which are arranged in the prefabricated bottom plate (1) and are vertical to the length direction of the section steel (2).
8. The prefabricated assembly type steel section concrete hollow composite floor slab as claimed in claim 7, wherein both ends of the longitudinal steel bars (4) and the transverse steel bars (5) extend out of the prefabricated bottom plate (1).
9. The prefabricated assembly type steel reinforced concrete hollow composite floor slab as claimed in claim 1, wherein the concrete adopted by the prefabricated bottom plate (1) is ultra-high performance concrete, and the concrete adopted by the cast-in-place concrete top plate (7) is ordinary concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121896896.8U CN215716433U (en) | 2021-08-13 | 2021-08-13 | Prefabricated assembled steel reinforced concrete cavity coincide floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121896896.8U CN215716433U (en) | 2021-08-13 | 2021-08-13 | Prefabricated assembled steel reinforced concrete cavity coincide floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215716433U true CN215716433U (en) | 2022-02-01 |
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ID=79995895
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121896896.8U Active CN215716433U (en) | 2021-08-13 | 2021-08-13 | Prefabricated assembled steel reinforced concrete cavity coincide floor |
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| Country | Link |
|---|---|
| CN (1) | CN215716433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116607683A (en) * | 2023-05-23 | 2023-08-18 | 山东建筑大学 | Assembled prefabricated floor |
-
2021
- 2021-08-13 CN CN202121896896.8U patent/CN215716433U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116607683A (en) * | 2023-05-23 | 2023-08-18 | 山东建筑大学 | Assembled prefabricated floor |
| CN116607683B (en) * | 2023-05-23 | 2023-11-21 | 山东建筑大学 | Assembled prefabricated floor |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230614 Address after: 710000, Room A-134, 3rd Floor, Block F, Building BDEF, Airport International Business Center, Airport New City, Xixian New District, Xi'an City, Shaanxi Province Patentee after: Shaanxi Ruijunye Construction Engineering Co.,Ltd. Address before: 710055 No. 13, Yanta Road, Shaanxi, Xi'an Patentee before: XIAN University OF ARCHITECTURE AND TECHNOLOG |