CN215211789U - Prefabricated assembled orthogonal laminated wood-concrete combined floor slab - Google Patents
Prefabricated assembled orthogonal laminated wood-concrete combined floor slab Download PDFInfo
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- CN215211789U CN215211789U CN202120867071.7U CN202120867071U CN215211789U CN 215211789 U CN215211789 U CN 215211789U CN 202120867071 U CN202120867071 U CN 202120867071U CN 215211789 U CN215211789 U CN 215211789U
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Abstract
The utility model relates to a prefabricated orthogonal laminated wood-concrete composite floor slab, which comprises an orthogonal laminated wood slab, a prefabricated concrete slab and an adhesive layer; grooves are formed in the upper surface of the orthogonal plywood at intervals according to the concave-convex structure of the profiled steel sheet; when the precast concrete slab is poured, profiled steel plates with the same specification are used as templates, and lugs which are arranged at intervals and correspond to the grooves are formed on the lower surface after demoulding; the convex block is connected with the groove through an adhesive layer. The utility model enables the orthogonal glued wood board and the precast concrete board to achieve the combined action, compared with the orthogonal glued wood floor, the rigidity and the bearing capacity of the floor can be obviously improved, and the vibration isolation and the sound insulation performance of the floor are improved; compared with a wood-cast-in-place concrete composite floor slab, the assembly rate and the construction efficiency of the building can be greatly improved; meanwhile, the convenience of wood processing and the plasticity during concrete pouring are fully utilized, and extra steel connecting pieces do not need to be arranged.
Description
Technical Field
The utility model relates to a prefabricated assembled quadrature veneer wood-concrete composite floor belongs to civil engineering technical field.
Background
Since 2008, the wood structure breaks through the limitation of the number of layers and the height, and foreign high-rise wood structures are pulled out successively. The orthogonal laminated wood is a wooden product formed by laminating and gluing orthogonal assemblies of laminates. Because the laminates are orthogonally and bidirectionally glued, the defect of large difference of stress performance of the wood along grains and transverse grains is effectively overcome, and the orthogonally glued wood gradually becomes a main material of a foreign multi-story high-rise wood structure in nearly ten years.
Along with the increasing number of layers of the wood structure, the bearing capacity and rigidity of the floor slab of the wood structure building are required to be higher and higher. Because the elasticity modulus of the wood is lower, the rigidity of the orthogonal laminated wood floor is lower, and the vibration isolation and sound insulation performance is poorer. The concrete has high elastic modulus and can be used for high-rise wood structures, however, the self weight of the concrete floor is high and is not matched with the whole self weight of the wood structures.
At present, the wood-concrete composite floor slab is usually formed by casting concrete on the surface of a wood beam or a wood board in situ, the wet operation construction of the cast-in-situ concrete is complex, the construction period is long, the efficiency is low, the construction efficiency of the wood structure is greatly reduced, and the construction period is prolonged.
The orthogonal plywood and the concrete slab are prefabricated in a factory and assembled on site, so that the assembly rate and the construction efficiency of a building can be greatly improved, and meanwhile, the prefabricated concrete slab can effectively prevent moisture from permeating into the orthogonal plywood during the operation of casting concrete on site. How to realize the efficient assembly connection between the precast concrete board and the orthogonal plywood and simultaneously enable the precast concrete board and the orthogonal plywood to achieve the combined action is a technical problem which needs to be solved urgently in the field.
Disclosure of Invention
The utility model aims at providing a prefabricated assembled quadrature veneer-concrete composite floor can make precast concrete board and quadrature veneer realize reasonable combination, reaches the combined action.
The utility model adopts the following technical proposal:
a prefabricated assembled orthogonal laminated wood-concrete composite floor slab comprises an orthogonal laminated wood board 1, a prefabricated concrete slab 2 and an adhesive layer 3; grooves 101 are formed in the upper surface of the orthogonal plywood 1 at intervals according to the concave-convex structure of the profiled steel sheet 4; when the precast concrete plate 2 is poured, profiled steel plates 4 with the same specification are used as templates, and after demolding, lugs 201 which are arranged at intervals and correspond to the grooves 101 are formed on the lower surface; the bump 201 is connected with the groove 101 through the adhesive layer 3.
Preferably, the profiled steel sheet 4 is an open profiled steel sheet, the wave height of the profiled steel sheet is 15 mm-30 mm, and the wave pitch is 300 mm-700 mm.
Preferably, the width direction of the profiled steel sheet 4 is perpendicular to the weak axis direction of the orthogonal laminated wood 1, and the weak axis direction is the wood cross grain stress direction.
Preferably, the adhesive layer 3 is a polyurethane adhesive.
The beneficial effects of the utility model reside in that:
1) the grooves are accurately formed in the surfaces of the orthogonal laminated wood boards, the corresponding convex grooves are formed in the precast concrete boards through the compression-molded steel plate templates, and meanwhile, the adhesive is coated on the grooves of the orthogonal laminated wood boards, so that the orthogonal laminated wood boards and the precast concrete boards achieve the combined action; compared with a wood-cast-in-place concrete composite floor slab, the assembly rate and the construction efficiency of the building can be greatly improved.
2) The utility model discloses make full use of wood working's convenience and the plastic property when concrete placement need not arrange extra steel connecting piece.
Drawings
Fig. 1 is a plan view of the prefabricated orthogonal laminated wood-concrete composite floor slab of the present invention;
FIG. 2 is a vertical view of the prefabricated orthogonal laminated wood-concrete composite floor slab of the present invention;
fig. 3 is an elevation view of a profiled steel sheet form.
In the figure: 1 orthogonal plywood, 2 precast concrete boards and 3 adhesive layers.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in the attached drawings 1-3, the embodiment of the utility model provides a prefabricated assembled quadrature veneer wood-concrete composite floor, it includes quadrature veneer wood 1, precast concrete board 2 and gluing agent layer 3.
The orthogonal plywood 1 is grooved on the upper surface of a press-type steel plate 4 by a woodworking engraving machine, the profiled steel plate 4 with the same specification is used as a template when the precast concrete plate 2 is poured, demoulding is carried out after maintenance is finished, an adhesive layer 3 is smeared on a groove 101 of the orthogonal plywood 1, and the precast concrete plate 2 and the orthogonal plywood 1 are spliced together to form the prefabricated assembled orthogonal plywood-concrete composite floor.
The profiled steel sheet 4 is an open profiled steel sheet, and the wave height of the profiled steel sheet 4 is 30mm and the wave pitch is 500 mm.
Referring to fig. 2, the width direction of the profiled steel sheet 4 is perpendicular to the weak axis direction of the orthogonal laminated wood 1, which is the wood cross grain stress direction. The type of the adhesive layer 3 at the groove is polyurethane adhesive.
Before the precast concrete plate 2 is poured, lubricating oil is coated on the profiled steel sheet 4.
During construction, the method comprises the following steps:
s1, slotting the size of the pressing steel plate 4 on the upper surface of the orthogonal plywood 1;
s2, the precast concrete slab 2 adopts profiled steel plates 4 with the same specification as templates, lubricating oil is smeared on the profiled steel plates 4 before pouring, a single-layer bidirectional reinforcing mesh is arranged, concrete is poured on the profiled steel plates 4, and demoulding is carried out after concrete curing is finished;
s3, coating an adhesive layer 3 at the groove 101 of the orthogonal plywood 1, and splicing the precast concrete slab 2 and the orthogonal plywood 1 together to form the precast fabricated orthogonal plywood-concrete composite floor.
According to the prefabricated assembled orthogonal laminated wood-concrete composite floor slab, the groove is formed in the surface of the orthogonal laminated wood accurately, the corresponding convex groove is formed in the prefabricated concrete slab through the compression steel plate template, and meanwhile, the adhesive is coated on the groove of the orthogonal laminated wood, so that the orthogonal laminated wood slab and the prefabricated concrete slab achieve the combined action, the rigidity and the bearing capacity of the floor slab are improved remarkably, the vibration isolation and sound insulation performance of the floor slab is improved, and the assembly rate and the construction efficiency of a building are improved.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and these changes or improvements should fall within the scope of the present invention.
Claims (4)
1. The utility model provides a prefabricated assembled quadrature laminated wood-concrete combination floor which characterized in that:
comprises an orthogonal glued wood board (1), a precast concrete board (2) and an adhesive layer (3);
grooves (101) are formed in the upper surface of the orthogonal plywood (1) at intervals according to the concave-convex structure of the profiled steel sheet (4);
when the precast concrete plate (2) is poured, profiled steel plates (4) with the same specification are used as templates, and lugs (201) which are arranged at intervals and correspond to the grooves (101) are formed on the lower surface after demolding;
the bump (201) is connected with the groove (101) through the adhesive layer (3).
2. The prefabricated orthogonal laminated wood-concrete composite floor slab as claimed in claim 1, wherein: the profiled steel sheet (4) is an open profiled steel sheet, the wave height of the profiled steel sheet is 15-30 mm, and the wave distance is 300-700 mm.
3. The prefabricated orthogonal laminated wood-concrete composite floor slab as claimed in claim 1, wherein: the width direction of the profiled steel sheet (4) is vertical to the weak axis direction of the orthogonal laminated wood (1), and the weak axis direction is the wood cross grain stress direction.
4. The prefabricated orthogonal laminated wood-concrete composite floor slab as claimed in claim 1, wherein: the adhesive layer (3) is a polyurethane adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120867071.7U CN215211789U (en) | 2021-04-26 | 2021-04-26 | Prefabricated assembled orthogonal laminated wood-concrete combined floor slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120867071.7U CN215211789U (en) | 2021-04-26 | 2021-04-26 | Prefabricated assembled orthogonal laminated wood-concrete combined floor slab |
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| CN215211789U true CN215211789U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120867071.7U Active CN215211789U (en) | 2021-04-26 | 2021-04-26 | Prefabricated assembled orthogonal laminated wood-concrete combined floor slab |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116677115A (en) * | 2023-06-02 | 2023-09-01 | 中交建筑集团有限公司 | Concrete-wood composite floor slab, mould box structure and production method of floor slab |
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2021
- 2021-04-26 CN CN202120867071.7U patent/CN215211789U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116677115A (en) * | 2023-06-02 | 2023-09-01 | 中交建筑集团有限公司 | Concrete-wood composite floor slab, mould box structure and production method of floor slab |
| CN116677115B (en) * | 2023-06-02 | 2024-01-30 | 中交建筑集团有限公司 | Concrete-wood composite floor slab, mould box structure and production method of floor slab |
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