CN116677115B - Concrete-wood composite floor slab, mould box structure and production method of floor slab - Google Patents
Concrete-wood composite floor slab, mould box structure and production method of floor slab Download PDFInfo
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- CN116677115B CN116677115B CN202310652205.7A CN202310652205A CN116677115B CN 116677115 B CN116677115 B CN 116677115B CN 202310652205 A CN202310652205 A CN 202310652205A CN 116677115 B CN116677115 B CN 116677115B
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- plate
- concrete
- steel sheet
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- 239000002023 wood Substances 0.000 title claims abstract description 173
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 72
- 239000010959 steel Substances 0.000 claims abstract description 72
- 230000005484 gravity Effects 0.000 claims abstract description 14
- 238000005266 casting Methods 0.000 claims description 69
- 238000000034 method Methods 0.000 claims description 12
- 238000010008 shearing Methods 0.000 abstract description 5
- 230000002708 enhancing effect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 14
- 230000007935 neutral effect Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
- B28B19/0015—Machines or methods for applying the material to surfaces to form a permanent layer thereon on multilayered articles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
Abstract
The application discloses a concrete-wood composite floor slab, a mould box structure and a production method of the floor slab, which relate to the field of floor slabs and comprise an upper layer wood plate; the concrete pouring layer is fixedly connected to the upper surface of the upper-layer wood board, and the gravity center of the concrete pouring layer and the gravity center of the upper-layer wood board are positioned on the same vertical line; the profiled steel sheet is fixedly arranged on the lower surface of the upper layer wood board, and the aims of enhancing the tensile strength, the compressive strength and the shearing strength of the floor slab can be achieved by adopting the technical scheme.
Description
Technical Field
The invention relates to the field of floors, in particular to a concrete-wood composite floor, a mould box structure and a production method of the floor.
Background
China has rich wood resources, and wood structure is favored by the building industry because of the advantages of high strength-to-weight ratio, good heat preservation performance, good earthquake resistance and the like. However, wood is an anisotropic material, and conventional wood structures are limited in span and structural form. In order to make up for the deficiency of the wood structure, the wood structure building often adopts a combined structure form;
the wood-concrete combined floor structure connects the concrete and the wood into a whole through the shear connector, and is stressed together, so that the strength and the rigidity of the structure are improved. The wood has good toughness and tensile strength, the concrete has good compressive strength, larger rigidity and higher stability, and the performances of the two materials can be fully exerted;
the existing wood-concrete combination has stronger compressive strength and stability, but in the actual use process, as the upper layer of the floor slab is of a concrete structure and the lower layer is of a wood structure, the thickness of the floor slab is basically fixed in the building, and when the thickness of wood accounts for larger than the thickness of the floor slab, the floor slab cannot play a role of concrete (the compressive strength is large); when the thickness of the wood is smaller than that of the floor slab, the tensile strength of the floor slab is poorer;
for this reason, it is urgently required to solve the existing problems.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a concrete-wood composite floor slab, a die box structure and a production method of the floor slab, so as to solve the technical problem of poor tensile strength of the existing floor slab.
First aspect
To achieve the above object, the present invention provides a concrete-wood composite floor slab comprising:
an upper wood board;
the concrete pouring layer is fixedly connected to the upper surface of the upper-layer wood board, and the gravity center of the concrete pouring layer and the gravity center of the upper-layer wood board are positioned on the same vertical line;
further comprises:
the profiled steel sheet is fixedly arranged on the lower surface of the upper wood board.
By adopting the technical scheme, the aim of enhancing the tensile strength of the floor slab can be achieved. The tensile toughness and the deformability of the wood are good, and the tensile capability of the concrete pouring layer can be enhanced by fixedly arranging the upper layer wood board at the bottom of the concrete pouring layer; the gravity center of the concrete pouring layer and the gravity center of the upper layer wood board are positioned on the same vertical line, so that the upper layer wood board can always bear uniformly distributed load, and further, the upper layer wood board is not easy to be damaged by concrete pouring lamination (if the gravity centers are not positioned on the same vertical line, the upper layer wood board can bear forces of different magnitudes to generate moment, and the bending strength of the upper layer wood board is poor, so that the situation that the upper layer wood board is damaged by concrete pouring lamination is easy to occur); the aim of further improving the tensile strength of the concrete pouring layer can be achieved by arranging the profiled steel sheet, in the concrete pouring layer, the material above the neutral axis is pressed, the material below the neutral axis is pulled, the compressive strength of the concrete pouring layer is about 10 times of the tensile strength, in order to exert the compressive effect as far as possible, namely, the material above the neutral axis is used, the wood is mainly used as a template below the neutral axis and plays a part in tensile effect, because the tensile toughness and the deformability of the wood are better, the tensile material below the neutral axis is mainly composed of the profiled steel sheet, and the profiled steel sheet and the wood at the bottom are connected and compositely stressed in a cooperative manner through self-tapping nails, so that the tensile effect is achieved; finally, the profiled steel sheet is arranged at the bottom of the upper wood board, but not at the bottom of the concrete pouring layer, so that the profiled steel sheet is mainly prevented from approaching a neutral axis, the self tensile capacity of the profiled steel sheet cannot be well exerted, the profiled steel sheet is kept down as much as possible, and the tensile performance of the profiled steel sheet can be exerted.
As a further description of the above technical scheme, the concrete pouring system further comprises a lower wood board fixedly arranged at the bottom of the profiled steel sheet, wherein the projection of the concrete pouring layer on the lower wood board and the upper surface of the lower wood board are mutually overlapped.
By adopting the technical scheme, the aim of saving building procedures can be achieved. The lower wood board of here is suspended ceiling panel specifically, because the projection of concrete placement layer on the lower wood board with the upper surface of lower wood board coincides each other to can play and accomplish when the floor installation of this application, suspended ceiling panel and then also realized the installation fixedly, broken traditional earlier installation floor, then, the process of installing the furred ceiling in the bottom of floor again, this scheme is direct with the installation process integration as an organic wholely of floor and furred ceiling, has improved building efficiency greatly. In addition, after the floor is completely built, gaps between adjacent lower-layer planks can be treated by a joint process, so that the overall attractiveness of the suspended ceiling is met.
As a further description of the above technical solution, the present invention further includes a plurality of screws, the screws pass through the upper wood board, the profiled steel sheet and the lower wood board from top to bottom in sequence, and one end of each screw is located in the lower wood board, and the other end of each screw is located above the upper wood board.
By adopting the technical scheme, the aim of not affecting the attractiveness of the lower-layer wood board can be achieved. Firstly, the scheme is limited by the use environment of the floor slab, so that the mode of adopting screw connection and fixation between the upper layer wood board, the profiled steel sheet and the lower layer wood board is superior to the mode of adopting adhesive fixed connection; secondly, because the lower floor plank of this application floor is as furred ceiling panel use, consequently, the connected mode of screw stretches into the lower floor plank from the top down, and then makes the bottom of lower floor plank can not appear the phenomenon of hole, finally reaches the aesthetic property of guaranteeing the lower floor plank, and if the screw stretches into in the upper floor plank from the lower floor plank from the bottom up, then the lower floor plank can leave a large amount of holes, and then influences the aesthetic property of lower floor plank and its usability.
As a further description of the above solution, the screws are arranged obliquely, a plurality of the screws being arranged crosswise so as to form a continuously repeated M-shaped design.
By adopting the technical scheme, the shearing strength of the floor slab can be improved. In this application, the concrete placement layer is the concrete placement layer that is equipped with the wire net in, and wire net and profiled steel sheet in the concrete placement layer act as the chord member, and the screw is as interior support, and then forms truss structure, finally plays the shear strength of improvement floor.
As further description of the technical scheme, the bottom of the upper-layer wood board is provided with a limit groove; the profiled steel sheet is provided with a bulge part, and the bulge part of the bulge part is clamped with the limit groove; limiting blocks are arranged on the lower-layer wood boards, and the limiting blocks are mutually clamped with the concave parts of the protruding parts.
By adopting the technical scheme, the aim of conveniently processing and producing the floor slab can be achieved. When processing the floor of this application, owing to need guarantee that the focus of concrete placement layer and upper plank keeps on same vertical line and the projection of concrete placement layer on the plank of lower floor and the upper surface of plank of lower floor coincide each other, consequently, just also need guarantee the position accuracy of concrete placement layer, upper plank and plank of lower floor, and through setting up spacing groove, stopper and bellying to can reach the purpose of location, and then satisfy the position accuracy requirement of concrete placement layer and plank of lower floor when the floor is processed.
Second aspect
The invention provides a die box structure, comprising: the casting box body, the concrete pouring layer, the upper wood board, the profiled steel sheet and the lower wood board in the concrete-wood composite floor slab according to the first aspect are all arranged in the casting box body and are mutually abutted with the casting box body.
By adopting the technical scheme, the occurrence of the condition that the bottom of the floor slab is damaged can be prevented. First, the method includes the steps of. Because the lower floor board in the floor slab of this application is used for furred ceiling panel, after the floor slab of this application is processed and produced, the floor slab that will make is put into the warehouse by the manufacturer and is stored up, the in-process of handling and floor slab are stored up here, the problem that the lower floor board of floor slab damaged can appear, and then influence the floor slab and use the practicality of lower floor board as the furred ceiling in actual construction building, and when the manufacturer of floor slab is when receiving the order, transport the construction unit with the floor slab, the floor slab is in the vanning transportation and when the construction unit department is stored up, the whole integrality of lower floor board can all be influenced. The floor slab is arranged in the casting mould box body by arranging the casting mould box body, so that the integrity of the lower-layer wood board of the floor slab in the process of transportation and stocking can be always ensured; in addition, because upper plank, profiled steel sheet and lower floor's plank all support each other with the mould box, consequently, when pouring concrete on upward plank, the wet material of concrete can not flow into in the clearance between mould box and upper plank and the lower floor's plank, and then guarantees the integrality that the lower floor's plank used as the furred ceiling panel.
As a further description of the above technical solution, the mold box includes:
a bottom plate;
the front plate is fixedly connected to the top of the bottom plate;
the back plate is fixedly connected to the top of the bottom plate;
the left plate is hinged to the top of the bottom plate and is detachably and fixedly connected with the front plate and the rear plate;
the right plate is hinged to the top of the bottom plate, a plurality of penetrating through holes are formed in the left plate and the right plate, and the right plate is detachably and fixedly connected with the front plate and the rear plate.
By adopting the technical scheme, the purpose of conveniently taking out the floor slab in the casting mould box body can be achieved. Because one of the casting mold box bodies is used for protecting the integrity of the lower-layer wood board, and the concrete pouring layer of the floor slab has the position precision requirement, when the upper-layer wood board, the profiled steel sheet and the lower-layer wood board of the floor slab are put into the casting mold box body, concrete can be directly poured into the casting mold box body to form the concrete pouring layer, so that the gravity centers of the concrete pouring layer and the upper-layer wood board are positioned on the same vertical line, and the projection of the concrete pouring layer on the lower-layer wood board and the lower-layer wood board are mutually overlapped, therefore, the casting mold box body also has the function of a mold; before concrete is poured into the casting mold box, the left plate (right plate) is fixed with the front plate and the rear plate respectively, then a plurality of long screws are used for penetrating through a plurality of through holes on the casting mold box, and then concrete is poured into the casting mold box, so that after the concrete pouring layer is formed, threaded holes penetrating through the left side and the right side of the concrete pouring layer are formed, and the weight of the concrete pouring layer is further reduced. And then, taking out the long screw (for concrete pouring in the subsequent casting mould box body), and installing the short screw in the through hole of the casting mould box body and the threaded hole of the floor slab, so that the purposes of conveniently carrying the casting mould box body (containing the floor slab) for warehouse entry and stocking can be realized by means of a forklift or an aerial crane. When the floor slab in the casting mould box body (containing the floor slab) at the construction site needs to be used, the short screw rod on the casting mould box body is firstly detached, then the left plate (the right plate) is detached from the front plate and the rear plate respectively, then the formed floor slab is removed from the casting mould box body, finally, the short screw rod is installed on the floor slab, and the purpose of conveying the floor slab to the expected construction site is achieved by using tools (the purpose of providing a force application point in the conveying process of the floor slab by the short screw rod). After the floor is installed, the floor producer can withdraw the short screw rod and the casting mould box body to the construction unit.
Third aspect of the invention
The invention provides a production method of a concrete-wood composite floor slab, which comprises the following steps:
s1: disassembly of the casting box: removing the fixed connection of the left plate, the front plate and the rear plate of the casting mold box body, and then removing the fixed connection of the right plate, the front plate and the rear plate of the casting mold box body;
s2: assembling an upper wood board, a profiled steel sheet and a lower wood board: taking out the screws to fixedly connect the upper layer wood board, the profiled steel sheet and the lower layer wood board;
s3: pouring a concrete pouring layer: loading the lower wood board into the casting mould box body, and then rotating the left board of the casting mould box body to fix the left board, the front board and the rear board; then, the right plate of the casting mould box body is rotated again to fix the right plate, the front plate and the rear plate; finally, taking out a plurality of long screws, correspondingly inserting the plurality of long screws into the through holes of the casting mould box body, and casting concrete in the casting mould box body, so that the concrete casting layer is formed on the upper wood board;
s4: and (3) replacing a long screw rod: and taking out the long screws on the casting box body, and then taking out the short screws to be arranged in the through holes of the casting box body.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the tensile strength of the concrete pouring layer can be enhanced by arranging an upper layer wood board at the lower part of the concrete pouring layer; the tensile strength of the concrete pouring layer is further enhanced by arranging the profiled steel sheet; the profiled steel sheet is arranged at the lower part of the upper wood board, so that the profiled steel sheet is prevented from approaching the neutral axis, the self tensile capacity of the profiled steel sheet cannot be well exerted, the profiled steel sheet is kept down as much as possible, and the tensile performance of the profiled steel sheet can be exerted.
2. The lower-layer wood boards are arranged to serve as suspended ceiling panels, so that the aim of processing construction efficiency can be achieved, and the lower-layer wood boards and the upper-layer wood boards can be made of heat-insulating materials, so that the floor slab can achieve the aims of energy conservation and heat insulation;
3. the cast box body is arranged, so that the integrity of a lower-layer wood board of the floor slab and the production and molding of a concrete pouring layer of the floor slab can be guaranteed when the floor slab is transported and stored.
Drawings
FIG. 1 is a schematic illustration of a concrete-wood composite floor slab of the present application;
FIG. 2 is a schematic illustration of the connection of a concrete-wood composite floor (without concrete casting) of the present application;
fig. 3 is an exploded view of a connection of a modular structure and a concrete-wood composite floor of the present application.
In the figure:
1. an upper wood board; 11. a limit groove; 2. a concrete pouring layer; 21. a steel wire mesh; 22. a threaded hole; 3. profiled steel sheet; 31. a boss; 4. a lower wood board; 41. a limiting block; 5. a screw; 6. casting the mold box body; 61. a bottom plate; 62. a front plate; 63. a rear plate; 64. a left plate; 641. a through hole; 65. and a right plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
First aspect
The present invention provides a concrete-wood composite floor, as shown in fig. 1-2, comprising: upper plank 1, concrete placement layer 2, profiled steel sheet 3, lower plank 4 and a plurality of screw 5, wherein:
the upper wood board 1 may be selected to have a certain function (such as heat preservation, water resistance, moisture resistance, noise reduction, vibration resistance, etc.), so that the floor slab in the present embodiment can also inherit the above-mentioned functions of the upper wood board 1.
The concrete pouring layer 2 (internally provided with a steel wire mesh 21) is used for enhancing the compressive strength of the floor slab. However, since the material above the neutral axis is pressed in the concrete placement layer 2 and the material below the neutral axis is pulled, the compressive strength of the concrete placement layer 2 is about 10 times or more the tensile strength in order to enhance the tensile strength of the concrete placement layer 2. Through setting up upper plank 1 in the bottom of concreting layer 2, because upper plank 1 tensile toughness and deformability are better to can reach the mesh of reinforcing concrete tensile strength. Further, although the upper wood board 1 can enhance the tensile strength of the concrete placement layer 2, when the upper wood board 1 receives a concentrated load due to the gravity of the concrete placement layer 2, the upper wood board 1 is obviously pressed by the concrete placement layer 2; when the unit area of the upper layer wood board 1 is stressed by the concrete pouring layer 2, the upper layer wood board 1 generates moment, and the situation that the concrete pouring layer 2 crushes the upper layer wood board 1 can occur because the bending strength of the upper layer wood board 1 is poor. In order to solve such a problem, the center of gravity of the concrete placement layer 2 and the center of gravity of the upper wood board 1 are positioned on the same vertical line at the time of design, so that the occurrence of the situation that the concrete placement layer 2 crushes the upper wood board 1 can be prevented. Further, in the present embodiment, the upper wood board 1 may be poured and spread with the concrete placement layer 2.
Profiled steel sheet 3 for further enhancing the compressive strength of concrete placement layer 2. The profiled steel sheet 3 is disposed at the bottom of the upper wood board 1, and the profiled steel sheet 3 is disposed at the lower portion of the upper wood board 1 to prevent the profiled steel sheet 3 from approaching the neutral axis, thereby making the profiled steel sheet 3 not capable of exerting its own tensile strength well, and making the profiled steel sheet 3 as lower as possible, thereby exerting its tensile strength (here, the advantage that the profiled steel sheet 3 is disposed above the upper wood board 1 instead of below the upper wood board 1). In addition, in order to guarantee the position accuracy of upper plank 1 and profiled steel sheet 3, offer spacing groove 11 on upper plank 1, set up bellying 31 at profiled steel sheet 3, through the boss joint of bellying 31 of profiled steel sheet 3 in spacing groove 11 of upper plank 1, and then can guarantee the accurate installation of upper plank 1 and profiled steel sheet 3.
The lower wood board 4 is used as a building ceiling panel. The lower wood board 4 is arranged at the bottom of the profiled steel sheet 3, in order to ensure the position precision of the lower wood board 4 and the profiled steel sheet 3, the limiting blocks 41 are integrally formed on the lower wood board 4, and the accurate installation of the lower wood board 4 and the profiled steel sheet 3 can be achieved by clamping the limiting blocks 41 on the lower wood board 4 at the concave parts of the convex parts 31 of the profiled steel sheet 3. Here, the stopper 41 is provided on the lower wood board 4 to satisfy the positional accuracy of the lower wood board 4 and the upper wood board 1, and thus the synchronous installation of the floor and the ceiling is realized.
And a plurality of screws 5 for realizing the connection and fixation of the concrete pouring layer 2, the upper wood board 1, the profiled steel sheet 3 and the lower wood board 4. In this embodiment, the use environment of the floor slab is limited, so that the mode of connecting and fixing the upper layer wood board 1, the profiled steel sheet 3 and the lower layer wood board 4 by adopting the bolts 5 is better than the mode of adopting the fixed connection mode of pasting (unstable fixation and short service life); secondly, in order to ensure the aesthetic property of the lower wood board 4 after the upper wood board 1, the profiled steel sheet 3 and the lower wood board 4 are fixedly connected, when the upper wood board 1, the profiled steel sheet 3 and the lower wood board 4 are sequentially penetrated from top to bottom, after the fixing is completed, one ends of two ends of the screw 5 are positioned in the lower wood board 4, the other ends of the screw 5 are positioned above the upper wood board 1, then the screw 5 positioned above the upper wood board 1 is embedded after the concrete casting layer 2 is cast, finally, the aesthetic property of the lower wood board 4 is ensured, and if the screw 5 extends into the upper wood board 1 from bottom to top from the lower wood board 4, a large number of holes are reserved in the lower wood board 4, so that the aesthetic property and the usability of the lower wood board 4 are influenced. In order to enhance the shearing strength of the floor slab in this embodiment, the plurality of screws 5 are obliquely arranged, and the plurality of screws 5 are alternately arranged to form an M-shaped design that is continuously and repeatedly arranged, so that the steel wire mesh 21 and the profiled steel sheet 3 in the concrete placement layer 2 serve as chords, and the screws 5 serve as internal supports, thereby forming a truss structure, and finally improving the shearing strength of the floor slab.
The working mode of the invention is described as follows:
the tensile strength of the concrete pouring layer 2 can be enhanced by arranging the upper layer wood board 1 at the lower part of the concrete pouring layer 2; the tensile strength of the concrete pouring layer 2 is further enhanced by arranging the profiled steel sheet 3; by arranging the profiled steel sheet 3 at the lower part of the upper layer wood board 1, the profiled steel sheet 3 can be prevented from approaching the neutral axis, so that the profiled steel sheet 3 cannot exert its own tensile capacity well, and the profiled steel sheet 3 is kept as low as possible, so that its tensile performance can be exerted; the lower-layer wood board 4 is arranged to serve as a suspended ceiling panel, so that when the concrete pouring layer 2 is installed, the suspended ceiling is synchronously installed, and the construction efficiency is greatly improved; finally, a truss structure is formed by arranging a plurality of screws 5, so that the concrete pouring layer 2, the upper wood board 1, the profiled steel sheet 3 and the lower wood board 4 are fixedly connected, and the shearing strength of the floor slab is enhanced.
Second aspect
The invention discloses a mould box structure, which comprises a mould box body 6 for accommodating a floor slab of a first aspect and forming a concrete pouring layer 2 in the floor slab of the first aspect.
Referring to fig. 3, the mold box 6 includes a bottom plate 61, a front plate 62, a rear plate 63, a left plate 64, and a right plate 65. Wherein, front plate 62 and back plate 63 are all fixedly disposed on bottom plate 61, and the bottoms of left plate 64 and right plate 65 are hinged on bottom plate 61, and the top of left plate 64 (right plate 65) is detachably connected with front plate 62 and back plate 63, respectively. The disassembling mode can adopt a buckle type connection or a bolt connection, in addition, when the upper layer wood board 1, the profiled steel sheet 3 and the lower layer wood board 4 in the floor slab of the first aspect are arranged in the casting box body 6, the upper layer wood board 1, the profiled steel sheet 3 and the lower layer wood board 4 in the floor slab of the first aspect are mutually abutted with the inner wall of the casting box body 6; finally, a plurality of through holes 641 are formed in each of the left plate 64 and the right plate 65 of the mold box 6.
The working mode of the invention is described as follows:
firstly, because the lower layer plank 4 in the floor of this application is used for the furred ceiling panel to use, when the floor of this application is processing the production back, generally put into the warehouse by the producer with the floor of making and carry out the stockpiling, the in-process of handling and floor stockpiling at this, the problem that the lower layer plank 4 of floor can appear, and then influence the floor and use the practicality that lower layer plank 4 was regarded as the furred ceiling in actual construction building, and when the producer of floor is receiving the order, when transporting the construction unit with the floor, the floor is in the vanning transportation and when the construction unit department is stockpiled, the wholeness of lower layer plank 4 can all be influenced. By arranging the casting mould box body 6, the floor slab is arranged in the casting mould box body 6, so that the integrity of the lower-layer wood board 4 can be always ensured in the process of transporting and stocking the floor slab; in addition, because upper layer plank 1, profiled steel sheet 3 and lower floor plank 4 all support each other with mould box 6, consequently, when pouring the concrete on upper layer plank 1, the wet material of concrete can not flow into the clearance between mould box 6 and upper layer plank 1 and the lower floor plank 4, and then guarantees the integrality that lower floor plank 4 used as the furred ceiling panel.
Because one of the casting box bodies 6 is used for protecting the integrity of the lower-layer wood board 4, and the concrete pouring layer 2 of the floor slab has the position precision requirement, when the upper-layer wood board 1, the profiled steel sheet 3 and the lower-layer wood board 4 of the floor slab are placed into the casting box body 6, concrete can be directly poured into the casting box body 6 to form the concrete pouring layer 2, so that the gravity centers of the concrete pouring layer 2 and the upper-layer wood board 1 are positioned on the same vertical line, and the projection of the concrete pouring layer 2 on the lower-layer wood board 4 and the lower-layer wood board 4 are mutually overlapped, so that the casting box body 6 also plays a role of a mould; before the concrete is poured into the mold box 6, the left plate 64 (right plate 65) is fixed to the front plate 62 and the rear plate 63, and then a plurality of long screws are used to pass through a plurality of through holes 641 in the mold box 6, and then the concrete is poured into the mold box 6, so that the left and right sides of the concrete pouring layer 2 after the molding are provided with threaded holes 22 penetrating the concrete pouring layer 2, and the weight of the concrete pouring layer 2 is reduced. Then, the long screw (for the subsequent concrete pouring in the casting mould box 6) is taken out, and the short screw is arranged in the through hole 641 of the casting mould box 6 and the threaded hole 22 of the floor slab, so that the purposes of conveniently carrying the casting mould box 6 (containing the floor slab) for warehouse entry and stocking can be realized by means of a forklift or aerial crane. When the floor slab in the casting box 6 (including the floor slab) at the construction site needs to be used, the short screw rod on the casting box 6 is detached firstly, then the left plate 64 (the right plate 65) is detached from the front plate 62 and the rear plate 63 respectively, then the formed floor slab is removed from the casting box 6, finally, the short screw rod is installed on the floor slab, and the purpose of conveying the floor slab to the expected construction site is achieved by using tools (the short screw rod in the process of conveying the floor slab provides a force application point). After the floor installation is completed, the floor manufacturer can retract the short screw and mold box 6 to the construction unit.
Third aspect of the invention
The invention also discloses a production method of the concrete-wood composite floor slab, which comprises the following steps:
s1: disassembly of the casting box 6: removing the fixed connection of the left plate 64 and the front plate 62 and the rear plate 63 of the mold box 6, and then removing the fixed connection of the right plate 65 and the front plate 62 and the rear plate 63 of the mold box 6;
s2: assembly of upper wood board 1, profiled steel sheet 3 and lower wood board 4: the limiting groove 11 of the upper layer wood board 1 is clamped at the convex part of the convex part 31 of the profiled steel sheet 3, then the limiting block 41 of the lower layer wood board 4 is clamped at the concave part of the convex part 31 of the profiled steel sheet 3, and finally the upper layer wood board 1, the profiled steel sheet 3 and the lower layer wood board 4 are fixedly connected by taking out the screw 5;
s3: pouring a concrete pouring layer 2: loading the lower wood board 4 into the casting box 6, and then rotating the left board 64 of the casting box 6 to fix the left board 64, the front board 62 and the rear board 63; then, the right plate 65 of the mold box 6 is rotated again to fix the right plate 65 and the front plate 62 and the rear plate 63; finally, a plurality of long screws are taken out, the long screws are correspondingly inserted into the through holes 641 of the casting mould box body 6, and then concrete is poured into the casting mould box body 6, so that a concrete pouring layer 2 is formed on the upper-layer wood board 1;
s4: and (3) replacing a long screw rod: the long screws on the mold box 6 are taken out, and then the short screws are taken out again to be installed in the through holes 641 of the mold box 6.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (1)
1. A method for producing a concrete-wood composite floor slab,
the concrete-wood composite floor slab includes: an upper wood board (1); the concrete pouring layer (2) is fixedly connected to the upper surface of the upper wood board (1), and the gravity center of the concrete pouring layer (2) and the gravity center of the upper wood board (1) are positioned on the same vertical line; further comprises: the profiled steel sheet (3) is fixedly arranged on the lower surface of the upper wood board (1); the concrete pouring system further comprises a lower-layer wood board (4), wherein the lower-layer wood board (4) is fixedly arranged at the bottom of the profiled steel sheet (3), and the projection of the concrete pouring layer (2) on the lower-layer wood board (4) is mutually overlapped with the upper surface of the lower-layer wood board (4); the wood plate forming machine further comprises a plurality of screws (5), wherein the screws (5) sequentially penetrate through the upper wood plate (1), the profiled steel sheet (3) and the lower wood plate (4) from top to bottom, one end part of each screw (5) is positioned in the lower wood plate (4), and the other end part of each screw (5) is positioned above the upper wood plate (1); the screws (5) are obliquely arranged, and a plurality of the screws (5) are crossed so as to form an M-shaped design which is continuously and repeatedly arranged; a limit groove (11) is formed in the bottom of the upper-layer wood board (1); the profiled steel sheet (3) is provided with a bulge part (31), and the bulge part of the bulge part (31) is clamped with the limit groove (11) mutually; a limiting block (41) is arranged on the lower-layer wood board (4), and the limiting block (41) is clamped with the concave part of the protruding part (31) mutually;
a mold box structure comprising: the concrete pouring layer (2), the upper layer wood board (1), the profiled steel sheet (3) and the lower layer wood board (4) are arranged in the casting box body (6) and are mutually abutted with the casting box body (6); the casting box (6) comprises: a bottom plate (61); a front plate (62) fixedly connected to the top of the bottom plate (61); a rear plate (63) fixedly connected to the top of the bottom plate (61); the left plate (64) is hinged to the top of the bottom plate (61), and the left plate (64) is detachably and fixedly connected with the front plate (62) and the rear plate (63); the right plate (65) is hinged to the top of the bottom plate (61), a plurality of through holes (641) are formed in the left plate (64) and the right plate (65), and the right plate (65) is detachably and fixedly connected with the front plate (62) and the rear plate (63);
the method is characterized by comprising the following steps of:
s1: disassembly of the casting box (6): -removing the fixed connection of the left plate (64) and the front plate (62) and the rear plate (63) of the casting box (6), and then removing the fixed connection of the right plate (65) and the front plate (62) and the rear plate (63) of the casting box (6);
s2: assembling an upper wood board (1), a profiled steel sheet (3) and a lower wood board (4): taking out the screws (5) to fixedly connect the upper-layer wood board (1), the profiled steel sheet (3) and the lower-layer wood board (4);
s3: pouring a concrete pouring layer (2): loading the lower wood board (4) into the casting box body (6), and then rotating the left board (64) of the casting box body (6) to fix the left board (64) and the front board (62) and the rear board (63); then, the right plate (65) of the casting mould box (6) is rotated again to fix the right plate (65) and the front plate (62) and the rear plate (63); finally, taking out a plurality of long screws, correspondingly inserting the plurality of long screws into the through holes (641) of the casting box body (6), and casting concrete in the casting box body (6), so that the concrete casting layer (2) is formed on the upper-layer wood board (1);
s4: and (3) replacing a long screw rod: the plurality of long screws on the casting box body (6) are taken out, and then the plurality of short screws are taken out again and are installed in the through holes (641) of the casting box body (6).
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| CN202310652205.7A CN116677115B (en) | 2023-06-02 | 2023-06-02 | Concrete-wood composite floor slab, mould box structure and production method of floor slab |
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| CN202310652205.7A CN116677115B (en) | 2023-06-02 | 2023-06-02 | Concrete-wood composite floor slab, mould box structure and production method of floor slab |
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| CN116677115B true CN116677115B (en) | 2024-01-30 |
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| CN113530050A (en) * | 2021-08-17 | 2021-10-22 | 上海市建筑科学研究院有限公司 | Corrugated steel plate reinforced orthogonal laminated wood composite floor slab and manufacturing method thereof |
| CN215211789U (en) * | 2021-04-26 | 2021-12-17 | 上海市建筑科学研究院有限公司 | Prefabricated assembled orthogonal laminated wood-concrete combined floor slab |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2019338428A1 (en) * | 2018-09-10 | 2021-04-15 | Hcsl Pty Ltd | Building panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048002A (en) * | 1989-06-01 | 1990-12-26 | 株式会社造形 | The preparation method of finished concrete goods or concrete structure |
| JPH09291644A (en) * | 1996-04-25 | 1997-11-11 | Shierutaa:Kk | Structural plywood in building |
| CN101775865A (en) * | 2009-06-03 | 2010-07-14 | 柳俊哲 | Steel-bamboo or steel-wood composite floor slab |
| CN203613709U (en) * | 2013-12-21 | 2014-05-28 | 陈津辰 | Novel composite board |
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| CN215211789U (en) * | 2021-04-26 | 2021-12-17 | 上海市建筑科学研究院有限公司 | Prefabricated assembled orthogonal laminated wood-concrete combined floor slab |
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| CN116677115A (en) | 2023-09-01 |
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