CN113107125A - Assembled wood-concrete combined floor slab and preparation and assembly method thereof - Google Patents
Assembled wood-concrete combined floor slab and preparation and assembly method thereof Download PDFInfo
- Publication number
- CN113107125A CN113107125A CN202110435794.4A CN202110435794A CN113107125A CN 113107125 A CN113107125 A CN 113107125A CN 202110435794 A CN202110435794 A CN 202110435794A CN 113107125 A CN113107125 A CN 113107125A
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- Prior art keywords
- concrete
- wood
- clt
- floor slab
- laminated wood
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- 239000004567 concrete Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002023 wood Substances 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 239000002131 composite material Substances 0.000 claims description 15
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009499 grossing Methods 0.000 claims 2
- 238000012423 maintenance Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- VSKDBFPGGSBFRY-JCXRFBJNSA-N 2-[[(2s)-1-[[(1s)-1-carboxy-2-(1h-indol-3-yl)ethyl]amino]-3-methyl-1-oxopentan-2-yl]amino]-4-phenylbutanoic acid Chemical compound N([C@@H](C(C)CC)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(O)=O)C(C(O)=O)CCC1=CC=CC=C1 VSKDBFPGGSBFRY-JCXRFBJNSA-N 0.000 description 1
- 108010073684 N-(1-carboxy-3-phenylpropyl)leucyltryptophan Proteins 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to an assembly type wood-concrete combined floor slab and a preparation and assembly method thereof. Compared with the prior art, the CLT orthogonal laminated wood can be completely prefabricated, the combined floor panel has various prefabricated connecting structures, the assembly degree is high, the construction efficiency can be effectively improved, the construction cost is reduced, meanwhile, the obtained combined floor panel can fully utilize the tension performance of the CLT orthogonal laminated wood and the compression performance of concrete, and the combined floor panel has the advantages of high bearing capacity, environmental friendliness and the like, and shows a wide building application prospect.
Description
Technical Field
The invention belongs to the technical field of civil construction engineering, and relates to an assembled wood-concrete combined floor slab and a preparation and assembly method thereof.
Background
The reinforced concrete-wood composite structure can fully utilize the compression performance of concrete and the tension performance of wood materials. Due to the characteristics of standardization and industrialization, the assembly type structure effectively improves the construction efficiency and gradually becomes one of the main production modes of modern industrialization.
Chinese patent CN110847463A discloses a full precast floor slab fabricated steel-concrete composite floor, which comprises an H-shaped steel beam and a floor slab arranged on the beam, and utilizes a stud connector, a V-shaped groove in the floor slab, shear-resistant steel bars, a lap-joint steel bar structure and post-cast concrete materials to form reliable connection between the floor slab and the steel beam. But the height of the steel beam of the combined floor system affects the net height of the floor, and green building materials such as wood and the like are not fully utilized, so that the manufacturing cost is higher.
Disclosure of Invention
The invention aims to provide an assembly type wood-concrete combined floor panel and a preparation and assembly method thereof, which are used for solving the problems of low construction efficiency and heavy burden on resource environment of the existing combined floor panel.
The purpose of the invention can be realized by the following technical scheme:
an assembled wood-concrete combined floor slab comprises CLT orthogonal laminated wood, a concrete floor slab poured and formed on the CLT orthogonal laminated wood, a shear connector with two ends respectively embedded in the CLT orthogonal laminated wood and the concrete floor slab, and a connecting steel bar embedded in the end face of the concrete floor slab and extending out of the end face of the concrete floor slab, wherein the thicknesses of the CLT orthogonal laminated wood and the concrete floor slab can be determined based on a combined member stress analysis method and a floor load numerical value.
Furthermore, the CLT orthogonal laminated wood comprises a first grain layer, a transverse grain layer and a second grain layer which are sequentially stacked; the wood grain directions of the first grain-following layer and the second grain-following layer are parallel to the connecting steel bars.
Furthermore, the shear connector comprises a shear connecting rod penetrating through the first down-grain layer and embedded into the cross-grain layer, and a shear connecting plate arranged at the end part of the shear connecting rod and embedded in the concrete floor panel.
Preferably, the shear connectors can adopt metal connectors such as common iron nails, rivets and the like, and the sectional area, the number, the spacing and the like of the connectors are determined according to the requirements on the shear-resistant bearing capacity.
Further, the shear connection plates are parallel to the CLT orthogonal laminated wood.
Furthermore, the shear connectors are provided with a plurality of shear connectors and are arranged between the CLT orthogonal laminated wood and the concrete floor panel in an array along the longitudinal grain direction and the transverse grain direction of the CLT orthogonal laminated wood.
Furthermore, every two connecting steel bars are distributed on the end face of the concrete floor slab in a group, and 2 connecting steel bars in each group are respectively arranged on two sides of the corresponding shear connector.
Furthermore, the end part of the laminated wood extends out of the concrete floor panel and forms a step-shaped connecting surface together with the end part of the concrete floor panel; the connecting reinforcing steel bars are arranged at the step-shaped connecting surface.
Further, the extending end of the connecting reinforcing steel bar does not exceed the end part of the CLT orthogonal laminated wood.
A method for preparing an assembled wood-concrete combined floor slab comprises the following steps: and pinning a shear connector on the CLT orthogonal laminated wood, exposing the top end of the shear connector, fixing the position of a connecting reinforcing steel bar, taking the laminated wood as a bottom template, and pouring concrete to form a concrete floor slab embedded with the connecting reinforcing steel bar, thus obtaining the assembled wood-concrete combined floor slab.
A method for assembling an assembled wood-concrete composite floor panel, comprising: the end faces of the 2 combined floor panels to be assembled, which are provided with the connecting steel bars, are butted to form a pouring space with the side forms and/or the bearing structures, the steel bars are placed at the upper parts in the pouring space to form lap joints with the connecting steel bars of the combined floor panels, then concrete with higher strength grade than that of the concrete floor panels is poured into the pouring space to form cast-in-place concrete connecting plates, and the assembly among the combined floor panels is completed after curing and demolding.
As a preferable technical scheme, the extending ends of the CLT orthogonal laminated wood are mutually butted to form one side wall of the pouring space.
Compared with the prior art, the invention has the following characteristics:
1) the prefabricated three-layer CLT orthogonal laminated wood is adopted, the tension performance of wood and the compression performance of concrete are fully utilized, the space waste is reduced, the bearing capacity of the obtained combined floor panel is improved, and meanwhile, the wood is wide in source, green and friendly, and can not seriously affect the environment after being abandoned;
2) the prefabricated wood plate is used as the bottom template, so that the consumption of the concrete pouring template can be effectively reduced, the resource waste is reduced, and the production efficiency is ensured;
3) the components such as CLT quadrature laminated wood can all adopt the mill prefabrication, accord with the assembled theory, during the construction, through pre-buried overhanging connecting reinforcement and upper portion reinforcing bar overlap joint between the adjacent combination floor panel, guaranteed between the combination floor panel and assembly structure's bulk joint intensity to make the work progress convenient more fast, effectively improve the efficiency of construction, reduce construction cost.
Drawings
FIG. 1 is a schematic view showing the construction of an assembled wood-concrete composite floor panel according to example 1;
FIG. 2 is a schematic view of the cross-sectional structure A-A in FIG. 1;
the notation in the figure is:
1-CLT orthogonal laminated wood, 101-a first grain layer, 102-a cross grain layer, 103-a second grain layer, 2-a shear connector, 201-a shear connector, 202-a shear connector, 3-a connecting steel bar, 4-a concrete floor panel, 5-a bearing wall, 6-a cast-in-place concrete connector and 7-a tension steel bar.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1:
an assembled wood-concrete composite floor panel as shown in fig. 1 and 2 is prepared by a method comprising: and pinning a shear connector 2 on the CLT orthogonal laminated wood 1, exposing the top end of the shear connector 2, fixing the position of a connecting steel bar 3, pouring concrete by using the CLT orthogonal laminated wood 1 as a bottom template to form a concrete floor panel 4 embedded with the connecting steel bar 3, and thus obtaining the assembled wood-concrete combined floor panel.
In the obtained fabricated wood-concrete composite floor slab, the CLT orthogonal laminated wood 1 comprises a first grain layer 101, a cross grain layer 102 and a second grain layer 103 which are sequentially stacked from top to bottom, and the grain directions of the first grain layer 101 and the second grain layer 103 are parallel to the connecting steel bars 3.
The shear connectors 2 may be formed by common nails or rivets, and are arranged between the CLT cross laminated wood 1 and the concrete floor panel 4 along the wood grain direction array on the first cis-grain layer 101 and the cross-grain layer 102. Each shear connector 2 includes a shear connector bar 201 penetrating the first paramagnetic layer 101 and embedded in the transverse layer 102, and a shear connector plate 202 provided at an end of the shear connector bar 201 and embedded in the concrete floor panel 4, the shear connector plate 202 extending in a direction parallel to the CLT orthogonal laminated wood 1.
The end part of the CLT orthogonal laminated wood 1 extends out of the concrete floor panel 4 and forms a step-shaped connecting surface together with the end part of the concrete floor panel 4; the connecting steel bar 3 is arranged at the step-shaped connecting surface, and the extending end of the connecting steel bar does not exceed the end part of the CLT orthogonal laminated wood 1.
The assembling method of the assembling type wood-concrete combined floor slab comprises the following steps: the end faces of the 2 combined floor panels to be assembled, which are provided with the connecting steel bars 3, are butted to form a pouring space with the side forms and the bearing wall 5, the upper parts in the pouring space are provided with the tension steel bars 7 to form lap joints with the connecting steel bars of the combined floor panels, then concrete with higher strength grade than that of the concrete floor panels is poured into the pouring space to form cast-in-place concrete connecting plates 6, and the assembly between the combined floor panels and the bearing wall 5 is completed after curing and demolding.
Example 2:
in this embodiment, at the end face of the concrete floor panel 4, a plurality of connecting reinforcing bars 3 are uniformly arranged in a group of two by two at equal intervals, and in the projection of the cross section, 2 connecting reinforcing bars 3 in each group are respectively arranged at two sides of the corresponding shear connectors 2 arranged along the grain. The rest is the same as example 1.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. 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 based on the disclosure of the present invention.
Claims (10)
1. The assembled wood-concrete combined floor slab is characterized by comprising CLT orthogonal laminated wood (1), a concrete floor slab (4) poured and formed on the CLT orthogonal laminated wood (1), a shear connector (2) with two ends respectively embedded in the CLT orthogonal laminated wood (1) and the concrete floor slab (4), and connecting steel bars (3) embedded in the end face of the concrete floor slab (4) and extending out.
2. The fabricated wood-concrete composite floor panel according to claim 1, wherein the CLT cross laminated wood (1) comprises a first grain layer (101), a cross grain layer (102) and a second grain layer (103) which are sequentially stacked; the wood grain directions of the first grain-smoothing layer (101) and the second grain-smoothing layer (103) are parallel to the connecting steel bar (3).
3. The fabricated wood-concrete composite floor slab as claimed in claim 2, wherein the shear connectors (2) comprise shear connectors (201) penetrating the first down-grain layer (101) and embedded in the cross-grain layer (102), and shear connectors (202) provided at ends of the shear connectors (201) and embedded in the concrete floor slab (4).
4. A fabricated wood-concrete composite floor panel according to claim 3, characterized in that said shear webs (202) are parallel to the CLT cross glulam (1).
5. The fabricated wood-concrete composite floor slab as claimed in claim 2, wherein the shear connectors (2) are provided in plurality and arranged between the CLT cross laminated wood (1) and the concrete floor slab (4) in an array along the grain and cross grain directions of the CLT cross laminated wood (1).
6. An assembled wood-concrete composite floor slab as claimed in claim 5, wherein the connecting reinforcement bars (3) are arranged on the end face of the concrete floor slab (4) in pairs, and 2 connecting reinforcement bars (3) in each group are respectively arranged on both sides of the corresponding shear connectors (2).
7. An assembled wood-concrete composite floor panel according to claim 1, characterized in that the ends of the CLT orthogonal laminated wood (1) protrude outside the concrete floor panel (4) and form a stepped joint surface together with the ends of the concrete floor panel (4).
8. An assembled wood-concrete composite floor slab according to claim 7, characterized in that the protruding ends of the connecting reinforcement bars (3) do not exceed the ends of the CLT cross laminated wood (1).
9. A method for manufacturing assembled wood-concrete composite floor panels according to any of the claims 1 to 8, characterized in that it comprises: and (2) pinning the shear connectors (2) on the CLT orthogonal laminated wood (1), exposing the top ends of the shear connectors (2), fixing the positions of the connecting reinforcing steel bars (3), pouring concrete by taking the CLT orthogonal laminated wood (1) as a bottom template to form a concrete floor slab (4) embedded with the connecting reinforcing steel bars (3), and obtaining the assembled wood-concrete combined floor slab.
10. A method for assembling fabricated wood-concrete composite floor panels according to any one of claims 1 to 8, comprising: the end faces of the 2 combined floor panels to be assembled, which are provided with the connecting steel bars (3), are butted to form a pouring space with the side forms and/or the bearing structure, the upper part in the pouring space is provided with the tensile steel bars (7) and is lapped with the connecting steel bars (3), then concrete with higher strength grade than that of the concrete floor panels (4) is poured into the pouring space to form cast-in-place concrete connecting plates (6), and the assembly between the combined floor panels is completed after maintenance and demolding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110435794.4A CN113107125A (en) | 2021-04-22 | 2021-04-22 | Assembled wood-concrete combined floor slab and preparation and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110435794.4A CN113107125A (en) | 2021-04-22 | 2021-04-22 | Assembled wood-concrete combined floor slab and preparation and assembly method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113107125A true CN113107125A (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110435794.4A Pending CN113107125A (en) | 2021-04-22 | 2021-04-22 | Assembled wood-concrete combined floor slab and preparation and assembly method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN113107125A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115822153A (en) * | 2023-01-08 | 2023-03-21 | 南京工业大学 | Technology for improving impact sound and sound insulation performance of orthogonal glued wood floor and application |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603448A (en) * | 2013-10-12 | 2014-02-26 | 南京工业大学 | Fabricated reinforced concrete and wood composite floor |
| JP2017078307A (en) * | 2015-10-21 | 2017-04-27 | 株式会社竹中工務店 | Load bearing plate member |
| CN108505675A (en) * | 2018-04-10 | 2018-09-07 | 上海市建筑科学研究院 | A kind of novel combination type floor and its construction method |
| CN210947338U (en) * | 2019-10-22 | 2020-07-07 | 中建八局第三建设有限公司 | Prefabricated assembled laminated wood and concrete combined floor system |
| JP2020105694A (en) * | 2018-12-26 | 2020-07-09 | 三菱地所株式会社 | Floor clt construction method and floor clt structure |
| CN215802553U (en) * | 2021-04-22 | 2022-02-11 | 同济大学 | Assembled wood-concrete combined floor slab |
-
2021
- 2021-04-22 CN CN202110435794.4A patent/CN113107125A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603448A (en) * | 2013-10-12 | 2014-02-26 | 南京工业大学 | Fabricated reinforced concrete and wood composite floor |
| JP2017078307A (en) * | 2015-10-21 | 2017-04-27 | 株式会社竹中工務店 | Load bearing plate member |
| CN108505675A (en) * | 2018-04-10 | 2018-09-07 | 上海市建筑科学研究院 | A kind of novel combination type floor and its construction method |
| JP2020105694A (en) * | 2018-12-26 | 2020-07-09 | 三菱地所株式会社 | Floor clt construction method and floor clt structure |
| CN210947338U (en) * | 2019-10-22 | 2020-07-07 | 中建八局第三建设有限公司 | Prefabricated assembled laminated wood and concrete combined floor system |
| CN215802553U (en) * | 2021-04-22 | 2022-02-11 | 同济大学 | Assembled wood-concrete combined floor slab |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115822153A (en) * | 2023-01-08 | 2023-03-21 | 南京工业大学 | Technology for improving impact sound and sound insulation performance of orthogonal glued wood floor and application |
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