CN220644808U - Ultrathin concrete laminated slab - Google Patents
Ultrathin concrete laminated slab Download PDFInfo
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- CN220644808U CN220644808U CN202321989338.5U CN202321989338U CN220644808U CN 220644808 U CN220644808 U CN 220644808U CN 202321989338 U CN202321989338 U CN 202321989338U CN 220644808 U CN220644808 U CN 220644808U
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- upper chord
- wave
- floor
- thin
- flat plate
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 17
- 238000011065 in-situ storage Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000009751 slip forming Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model provides an ultrathin concrete laminated slab, which belongs to the field of assembly type buildings and comprises a prestressed bottom plate, a framework and a cast-in-situ layer. The prestressed floor comprises a floor prestressed rib and a floor concrete layer, wherein the floor prestressed rib is arranged in the floor concrete layer. The framework at least comprises a wave form web member group, an upper chord thin flat plate and an upper chord reinforcing plate, the wave trough of the wave form web member group is buried and fixed in the bottom plate concrete layer, the upper chord thin flat plate is fixed on the wave crest of the wave form web member group, the upper chord reinforcing plate is arranged on one side of the upper chord thin flat plate, which faces the wave form web member group, to form a lateral support of the upper chord thin flat plate, and the cast-in-situ layer is poured on the prestress bottom plate and is buried in the framework. The thickness of the upper chord is reduced by using the upper chord thin flat plate (the height of the whole framework is reduced), so that the thickness of a cast-in-situ layer is reduced, the total thickness of the laminated floor slab is further reduced, the concrete consumption is reduced, the dead weight of the structure is reduced, and the cost of the main structure is saved.
Description
Technical Field
The utility model relates to the field of assembled buildings, in particular to an ultrathin concrete laminated slab.
Background
The minimum finished thickness of the concrete laminated slab in the prior art for the steel bar truss laminated slab is 130mm (60 mm of bottom plate and 70mm of cast-in-situ layer). The minimum thickness of the execution standard of PK prestressed laminated plates in the industry is 120mm (the bottom plate is 35mm, the cast-in-situ layer is 85 mm), and the thickness of the laminated plates depends on the construction requirements of the reinforcement protection layers, the pipeline space and the stress requirements of the construction stage and the like. The cast-in-situ slab has the thinnest thickness of 80-100 mm, which can meet the stress requirement in the using stage.
Therefore, according to the installation requirement of the assembled floor, the thickness of the prestressed composite floor is increased compared with that of the cast-in-situ slab, and the dead weight of the structure is increased, so that concrete materials are wasted, and carbon emission is increased. Therefore, how to reduce the plate thickness of the prestressed laminated slab, thereby saving concrete and reducing carbon emission is a problem to be solved urgently.
Disclosure of Invention
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
The utility model aims to reduce the plate thickness of a prestressed laminated plate, thereby saving concrete and reducing carbon emission.
To this end, the utility model provides an ultrathin concrete composite slab, characterized by comprising:
the prestressed floor comprises a floor prestressed rib and a floor concrete layer, wherein the floor prestressed rib is arranged in the floor concrete layer;
the framework at least comprises a wave-shaped web member group and an upper chord thin flat plate, wherein wave troughs of the wave-shaped web member group are buried and fixed in the bottom plate concrete layer, and the upper chord thin flat plate is fixed on wave crests of the wave-shaped web member group;
and the cast-in-situ layer is poured on the pre-stress bottom plate and is buried in the framework.
Preferably, the device further comprises an upper chord reinforcing plate, wherein the upper chord reinforcing plate is arranged on one side of the upper chord thin flat plate facing the wave-shaped web member group, so that lateral support of the upper chord thin flat plate is formed.
Preferably, the number of the upper chord reinforcing plates is two, the two upper chord reinforcing plates and the upper chord thin plate form a channel steel structure, and the wave crests of the wave form web member group are fixed in the grooves of the channel steel structure.
Preferably, the wave web member group comprises a continuously formed wave steel tube.
Preferably, the wave crests of the corrugated steel pipes are flat, and the flat wave crests are welded on the channel steel structure.
Preferably, the number of the frameworks is multiple, and multiple rows of frameworks are arranged on the prestress bottom plate at intervals side by side.
Preferably, the wave-shaped web member group is formed by continuous angle steel, channel steel or steel plates in a wave shape.
Preferably, the upper chord thin flat plate is a steel plate with the thickness of 1 mm-5 mm.
The above technical scheme alone or in combination shows the following beneficial effects:
the upper chord thin flat plate is used, and the upper chord reinforcing plate is arranged below the upper chord thin flat plate, so that the upper chord height is reduced (the height of the integral framework is reduced), the thickness of a cast-in-situ layer is reduced, the thickness of a prefabricated bottom plate is reduced by using a prestressed bottom plate, the total thickness of a laminated floor slab is further reduced, the consumption of concrete is reduced, the dead weight of the structure is lightened, and the cost of a main structure is saved.
Meanwhile, the thickness of the integral laminated slab is reduced, and the net height of the floor space is indirectly increased.
Drawings
Fig. 1 is a schematic view of a perspective view structure of the present utility model.
Fig. 2 is a side view of the present utility model.
Fig. 3 is an enlarged view of a portion of fig. 2.
Fig. 4 is a position representation of the frame in the present utility model.
Detailed Description
The following description is presented to enable one skilled in the art to make and use the utility model and to incorporate it into the context of a particular application. Various modifications, as well as various uses in different applications will be readily apparent to persons skilled in the art, and the generic principles defined herein may be applied to a wide range of embodiments. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
In the following detailed description, numerous specific details are set forth in order to provide a more thorough understanding of the utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without limitation to these specific details. In other instances, well-known structures and devices are shown in block diagram form, rather than in detail, in order to avoid obscuring the present utility model.
The reader is directed to all documents and documents filed concurrently with this specification and open to public inspection with this specification, and the contents of all such documents and documents are incorporated herein by reference. All the features disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic set of equivalent or similar features.
Note that where used, the designations left, right, front, back, top, bottom, forward, reverse, clockwise, and counterclockwise are used for convenience only and do not imply any particular orientation of securement. In fact, they are used to reflect the relative position and/or orientation between the various parts of the object. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Note that, where used, further, preferably, further and more preferably, the brief description of another embodiment is made on the basis of the foregoing embodiment, and further, preferably, further or more preferably, the combination of the contents of the rear band with the foregoing embodiment is made as a complete construction of another embodiment. A further embodiment is composed of several further, preferably, still further or preferably arrangements of the strips after the same embodiment, which may be combined arbitrarily.
The utility model is described in detail below with reference to the drawings and the specific embodiments. It is noted that the aspects described below in connection with the drawings and the specific embodiments are merely exemplary and should not be construed as limiting the scope of the utility model in any way.
Referring to fig. 1 to 4, the present embodiment provides an ultrathin concrete composite slab, which comprises a prestressed base plate 1, a framework 2 and a cast-in-situ layer. The prestressed floor 1 comprises a floor prestressed rib and a floor concrete layer, wherein the floor prestressed rib is arranged in the floor concrete layer. The framework 2 at least comprises a wave-shaped web member group 22 and an upper chord thin flat plate 21, the wave trough of the wave-shaped web member group 22 is buried and fixed in the bottom plate concrete layer, the upper chord thin flat plate 21 is fixed on the wave crest 221 of the wave-shaped web member group 22, and the cast-in-situ layer is poured on the prestress bottom plate 1 and the framework 2 is buried. The upper chord reinforcing plate 23 is arranged below the upper chord thin flat plate 21 by using the upper chord thin flat plate 21, so that the upper chord height is reduced (the height of the integral framework 2 is reduced), the thickness of a cast-in-situ layer is reduced, the total thickness of the floor slab is further overlapped, the concrete consumption is reduced, the dead weight of the structure is reduced, and the cost of a main structure is saved.
The foregoing aspects are essential to the implementation of the present embodiment, and are described in further detail below with reference to the accompanying drawings and detailed description:
as the prestressed floor 1, the floor prestressed tendons in this embodiment are prestressed tendons, which are formed into a prestressed floor 1 by being stretched at the time of pouring of the floor concrete.
The upper chord thin flat plate 21 serves as an upper chord structure in order to meet the requirement on the strength of the structure itself. For reinforcing the structural strength and bending resistance, the frame 2 further comprises an upper chord reinforcing plate 23, which upper chord reinforcing plate 23 is provided on the side of the upper chord thin plate 21 facing the wave web members 22 to form a lateral support of the upper chord thin plate 21.
Specifically, the number of the upper chord reinforcing plates 23 is two, the two upper chord reinforcing plates 23 and the upper chord thin flat plate 21 form a channel steel structure, and the wave crests 221 of the wave web member group 22 are fixed in the grooves of the channel steel structure. Further, two upper chord reinforcement plates 23 are vertically connected to the upper chord thin flat plate 21. Preferably, the upper chord reinforcement plate 23 and the upper chord thin flat plate 21 are integrally formed to form the channel steel structure. The thickness of the upper chord thin flat plate 21 can be 1mm to 5mm, preferably 2mm, in practical construction. For example, an upper chord thin flat plate 21 with a thickness of 2mm and a width of 100mm is used, and the sectional area of the upper chord thin flat plate is 200mm 2 Compared with the steel bars with the diameter of 16mm, the steel bar can save the thickness of 14mm, but achieves the same strength and rigidity, has better lateral resistance, is convenient for being connected with a single-row web member group to prevent lateral instability (otherwise, two rows of V-shaped web member group steel bar trusses are needed).
Further, the wave web member group 22 comprises a continuously formed wave steel tube; alternatively, the wave web members 22 are contoured from a continuous angle, channel, or sheet. The peak 221 at the top is welded to the upper chord thin flat plate 21, and the width thereof does not exceed the interval between the two upper chord reinforcing plates 23. The bottom wave troughs of the wave form web member group 22 can be bound or welded on the base plate prestress rib of the prestress base plate 1.
Further, in order to stabilize the connection between the wave web member 22 and the upper chord thin flat plate 21. When the wave web member group 22 is a wave steel pipe, the wave crests 221 of the wave steel pipe are flat, and the flat wave crests 221 are welded to the channel structure.
In practice, the superimposed sheet is applied to a certain span, for which the number of frames 2 is a plurality of rows, the rows of frames 2 being arranged side by side at a distance from the prestressed floor 1.
It should be noted that, in this embodiment, the cast-in-place layer is not illustrated, so that the cast-in-place layer is a common sense for better expressing the structure of this embodiment, and is not specifically described herein.
The above technical scheme alone or in combination shows the following beneficial effects:
the upper chord is reduced in height (the height of the integral framework 2 is reduced) by using the upper chord thin flat plate 21 and arranging the upper chord reinforcing plate 23 below the upper chord thin flat plate 21, so that the thickness of a cast-in-situ layer is reduced, the total thickness of the laminated floor slab is further reduced, the consumption of concrete is reduced, the dead weight of the structure is reduced, and the cost of a main structure is saved.
The thickness of the integral laminated slab is reduced, and the net height of the floor space is indirectly increased.
The present utility model has been described in detail with reference to the embodiments of the drawings, and those skilled in the art can make various modifications to the utility model based on the above description. Accordingly, certain details of the illustrated embodiments are not to be taken as limiting the utility model, which is defined by the appended claims.
Claims (8)
1. An ultra-thin concrete composite slab, comprising:
the prestressed floor comprises a floor prestressed rib and a floor concrete layer, wherein the floor prestressed rib is arranged in the floor concrete layer;
the framework at least comprises a wave-shaped web member group and an upper chord thin flat plate, wherein wave troughs of the wave-shaped web member group are buried and fixed in the bottom plate concrete layer, and the upper chord thin flat plate is fixed on wave crests of the wave-shaped web member group;
and the cast-in-situ layer is poured on the pre-stress bottom plate and is buried in the framework.
2. The ultra-thin concrete composite slab of claim 1, further comprising an upper chord reinforcement plate disposed on a side of the upper chord sheet facing the wave web assembly, forming a lateral support for the upper chord sheet.
3. The ultra-thin concrete composite slab of claim 2, wherein the number of the upper chord reinforcing plates is two, the upper chord reinforcing plates and the upper chord thin flat plate form a channel steel structure, and the wave crests of the wave web member group are fixed in the grooves of the channel steel structure.
4. An ultra-thin concrete composite slab according to claim 3, wherein said corrugated web assembly comprises a continuously formed corrugated steel pipe.
5. An ultra-thin concrete composite slab according to claim 4, wherein said wave crests of said corrugated steel pipe are flat, and wherein said wave crests are welded to said channel structure.
6. An ultra-thin concrete composite slab according to claim 1, wherein said plurality of frames are arranged in a plurality of rows, said rows being spaced side by side from said prestressed floor.
7. An ultra-thin concrete composite slab according to claim 1, wherein said corrugated web members are corrugated from continuous angles, channels or steel plates.
8. An ultra-thin concrete composite slab according to claim 1, wherein the upper chord thin slab is a steel plate with a thickness of 1mm to 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321989338.5U CN220644808U (en) | 2023-07-27 | 2023-07-27 | Ultrathin concrete laminated slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321989338.5U CN220644808U (en) | 2023-07-27 | 2023-07-27 | Ultrathin concrete laminated slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220644808U true CN220644808U (en) | 2024-03-22 |
Family
ID=90290154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321989338.5U Active CN220644808U (en) | 2023-07-27 | 2023-07-27 | Ultrathin concrete laminated slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220644808U (en) |
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2023
- 2023-07-27 CN CN202321989338.5U patent/CN220644808U/en active Active
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