CN214302480U

CN214302480U - Anti-cracking composite reinforced disassembly-free template and floor support plate

Info

Publication number: CN214302480U
Application number: CN202022277913.1U
Authority: CN
Inventors: 陈敖宜; 张东
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-09-28
Anticipated expiration: 2030-10-13

Abstract

The utility model discloses a cracking-proof composite reinforced non-dismantling template; the concrete composite slab comprises a basic bearing plate body compatible with a cement matrix, and is characterized in that a cement mortar layer is compounded on the basic bearing plate body; the two sides of the cement mortar layer are provided with edge sealing gaps, and at least one layer of gridding cloth and/or steel wire gauze is laid between the cement mortar layers or in the cement mortar layers. The utility model also discloses a floor support plate; by adopting the technical scheme, the thickness of the basic bearing plate body is reduced and the bending resistance is improved under the condition of meeting the compression resistance; by adopting the technical scheme for compounding, the problem of seam cracking caused by bending and warping of the non-dismantling formwork in the actual construction process is solved; and relatively light in weight; by adopting the edge sealing notch design, after splicing, gridding cloth and cement mortar are laid in the splicing groove to form edge sealing, thereby further preventing the cracking of the splicing part.

Description

Anti-cracking composite reinforced disassembly-free template and floor support plate

Technical Field

The utility model belongs to the technical field of architectural design, especially, relate to a prevent compound reinforcing of fracture and exempt from to tear open template and building carrier plate.

Background

At present, floor panels of buildings mainly have two forms, one is a precast slab, and the other is a cast-in-place concrete floor. The prefabricated slab floor slab is installed in the modes of ground prefabrication forming and field hoisting, and has the advantages of high construction speed and low cost. However, the existing precast slab floor slab is lack of effective connection with the wall body, and is easy to loosen and fall off when encountering natural disasters such as earthquakes and the like, thereby causing property loss and even casualties. In addition, after the assembly of the existing precast slab floor slabs is finished, certain gaps exist among the floor slabs, and ceiling cracks are generated due to improper treatment, so that the appearance is not only influenced, but also water leakage and other phenomena can be generated.

The cast-in-place concrete floor slab overcomes some defects of the precast slab floor slab, and can greatly improve the shock resistance of the building. However, the construction of the cast-in-place concrete floor requires a series of operations such as erecting a support frame on site, laying a formwork on the support frame, laying reinforcing steel bars in the formwork, and then pouring concrete. In the traditional floor construction engineering, the wood template is adopted for floor construction, and the defects of resource waste, large form removal loss, large quantity of floor support tools, high construction cost and the like exist. In order to overcome the defect of floor construction by using a wood template, the cast-in-place precast concrete composite slab is provided, but the existing cast-in-place precast concrete composite slab has the disadvantages of heavy weight, low factory processing speed, complex transportation and hoisting construction and high bearing requirement of a floor supporting tool.

With the development of the technology, the prior art discloses a prefabricated disassembly-free floor composite slab; including the cement fiber pressure plate, parallel arrangement C shaped steel constitutes the C shaped steel support frame on the cement fiber pressure plate, C shaped steel is fixed with the cement fiber pressure plate through boring tail self-tapping screw, and reinforcing bar net piece ligature or welding are on the C shaped steel support frame, improve the anti roll-over of cement fiber pressure plate, compressive property through C shaped steel, and this needs the cement fiber pressure plate to need sufficient thickness just can satisfy, and thicker cement fiber pressure plate has from great on the one hand, is unfavorable for adopting self-tapping screw and C shaped steel to be connected.

The disassembly-free floor laminated slab can be prefabricated in a factory or can be installed on site; compared with the traditional wood formwork, the formwork removal construction is reduced; compared with the traditional floor bottom die support, the disassembly-free floor composite slab has high rigidity and good integrity, and the support tools can be reduced; compared with a concrete prefabricated laminated slab, the disassembly-free floor laminated slab has the advantages of light dead weight and high cast-in-place construction quality. However, during actual assembly construction, the phenomenon of cracking of the abutted seams between adjacent cement fiber pressure plates occurs; according to the reason that cracking occurs in practical analysis, the method is mainly caused by the following reasons that firstly, the pre-tightening force of tapping screws used for fixing the cement fiber pressure plate and the C-shaped steel support frame is not enough, and the C-shaped steel support frame is unevenly arranged in a one-way mode and stressed, so that the cement fiber pressure plate is warped and deformed; the reason for loosening the automatic screw is generally that the initial pretightening force is not enough, and the reasons are transportation, pouring, vibration and the like; once the cement fiber pressure plate is subjected to buckling deformation, the joint cracks, and even the cement fiber pressure plate is delaminated from concrete if the deformation amount is large.

Therefore, the anti-cracking composite reinforced disassembly-free template and the floor support plate have high breaking strength, solve the problem of seam cracking and have relatively light self weight.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model provides a reduce basic bearing plate body thickness, improve and exempt from to tear open the anti flexural strength of template, and can solve the compound reinforcing of preventing ftractureing of piece fracture and exempt from to tear open the template. Meanwhile, the problem of rust resistance of the tapping screw in the prior art is solved.

The utility model is realized in such a way that the anti-cracking composite reinforced non-dismantling template; the concrete bearing plate comprises a basic bearing plate body compatible with a cement matrix, and is characterized in that a cement mortar layer is compounded on at least one of the upper surface and the lower surface of the basic bearing plate body; the two sides of the cement mortar layer are provided with edge sealing gaps, and at least one layer of gridding cloth and/or steel wire gauze is laid between the cement mortar layers or in the cement mortar layers.

Preferably, the base load-bearing plate body is a cement fiberboard or a calcium silicate board.

Preferably, the upper surface of the base load-bearing plate body is provided with a C-shaped steel member through a fastener.

Preferably, the base bearing plate body is provided with a connecting piece for fixing a steel bar truss or a steel structure, the connecting piece is fixed relative to the base bearing plate, and one end of the connecting piece extends out of one side face of the base bearing plate body.

The utility model discloses still disclose a building carrier plate, the building carrier plate is exempted from to tear open the concatenation of template unit by the several and is formed, it includes template and steel bar truss to exempt from to tear open the template unit, the template adopts foretell compound reinforcing of preventing ftractureing and exempts from to tear open the template, the last fixed surface of exempting from to tear open the template installs steel bar truss.

The utility model has the advantages and technological effect: by adopting the technical scheme, the thickness of the basic bearing plate body is reduced and the bending resistance is improved under the condition of meeting the compression resistance; the base bearing plate is a pressure plate, so that the density is high, the dead weight of the unit area is relatively high, the technical scheme is adopted for compounding, the bending strength of the base bearing plate is obviously higher than that of a single-layer cement fiberboard under the condition of the same thickness, and the problem of seam cracking caused by bending and warping of the non-dismantling formwork in the actual construction process is solved; and relatively light in weight; the cement mortar layer has the effect of reinforcing the disassembly-free template, and also has the problem of isolating air to prevent the connecting piece from being rusted or preventing the connecting piece from being rusted and then being impermeable. The anti-bending strength of the disassembly-free template is improved by adding the C-shaped steel member; edge sealing notches are formed in two sides of the cement mortar layer, and crack resistance edge sealing and leveling are performed in the edge sealing notches through the grid cloth and the cement mortar, so that the crack of the abutted seam position is further prevented; additionally, the utility model discloses still have simple structure, easily produce the localization, improve advantages such as efficiency of construction.

In addition, compared with the existing self-tapping screw, the built-in connecting piece is adopted, the connecting strength of the built-in connecting piece and a steel bar truss or a steel structure is greatly improved, the hanging capacity of the building structure body to the non-dismantling template after pouring is improved, and the same service life of the non-dismantling template and the building structure is really realized.

Drawings

FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;

fig. 3 is a schematic structural diagram of embodiment 3 of the present invention;

fig. 4 is a schematic structural diagram of embodiment 4 of the present invention;

fig. 5 is a schematic structural diagram of embodiment 5 of the present invention;

fig. 6 is a schematic structural diagram of embodiment 6 of the present invention;

FIG. 7 is a schematic view of the structure of the panels of this embodiment 6;

FIG. 8 is a schematic view of the seam structure of this embodiment 6;

fig. 9 is a schematic view of a splicing structure of floor decks;

FIG. 10 is a schematic structural view of a disassembly-free template unit;

FIG. 11 is a schematic structural view of a disassembly-free formwork unit with spacers;

fig. 12 is a schematic cross-sectional structure of a poured floor slab.

In the figure, 1, a basic bearing plate; 2. a cement mortar layer; 2-1, sealing the edge gap; 3. mesh cloth; 4. steel wire mesh; 5. a connecting member; 5-1, a limiting disc; 5-2, a connecting part; 6. a C-section steel member; 7. self-tapping screws; 8-1, a nut; 8-2, a plate-shaped member; 9. cushion blocks; 10. a steel bar truss.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1, please refer to fig. 1, a composite reinforced non-dismantling template; the bearing plate comprises a basic bearing plate 1 compatible with a cement matrix, belongs to a large-tonnage pressure plate, and plays the roles of a main bearing member and bearing, wherein a cement mortar layer 2 is compounded on at least one of the upper surface and the lower surface of a basic bearing plate body; the composite cement mortar layer is positioned on the composite surface according to the actual building requirements, for example, if the overall thickness of the building requirements is 12-15 mm, the thickness of the base bearing plate is 6-12 mm, single-sided or double-sided composite is selected according to the actual requirements, and the embodiment is schematically illustrated by taking single-sided composite as an example; at least one layer of mesh cloth 3 and/or steel wire mesh 4 is/are laid between the cement mortar layers or in the cement mortar layers. Preferably, in the technical scheme, the basic bearing plate ladder is a cement fiberboard or a calcium silicate board. In the embodiment, the cement fiber board is selected, and a layer of grid cloth 3 is laid between the cement mortar layers, so that on one hand, the bonding strength between the cement fiber board and the cement mortar layers is improved, and meanwhile, the anti-bending performance is also improved, and the template is prevented from cracking due to stress deformation; and edge sealing notches 2-1 are arranged on two sides of the cement mortar layer, and crack resistance edge sealing and leveling are performed in the edge sealing notches through the gridding cloth and the cement mortar, so that the crack of the abutted seam position is further prevented.

Example 2 referring to fig. 2, in this example, the steel wire net 4 is located in the cement mortar layer. The remaining features are the same as in embodiment 1.

The anti-cracking composite reinforced non-dismantling template can be used for cast-in-place construction non-dismantling templates such as floor slabs, balconies, air-conditioning tables, stairs, roofs, beams and columns. When in actual use, the requirements of size, thickness and composite surface are selected according to the actual engineering requirements; in actual use, the support can be used by depending on the existing support system, and can also be applied to a non-dismantling mold system without support or a small amount of support, and the following description is mainly directed to a preferred technical scheme of the non-support;

in embodiment 3, please refer to fig. 3, a connecting member 5 for fixing a steel bar truss or a building steel structure is installed on the foundation bearing plate body based on the above embodiment, and the connecting member mainly hangs the above non-dismantling formwork on the steel structure to form a non-supporting formwork system.

Preferably, in the technical scheme, the connecting piece 5 at least comprises a limiting disc 5-1 and a connecting part 5-2, and the limiting disc mainly improves the contact area between the connecting piece and the basic bearing plate body and improves the hanging force; the connecting part is mainly used for fixedly connecting with a steel structure; the connecting part is of a columnar structure, the connecting part of the columnar structure penetrates through the base bearing plate, and an external thread section or an internal thread hole is formed in the upper end of the connecting part; the steel bar truss is connected by adopting a nut 8-1 or a stud matched with a thread, a plate-shaped member 8-2 is matched and sleeved on the columnar connecting part when the nut or the stud is adopted, and then the nut and the connecting part are locked by the thread, so that the two ends of the plate-shaped member are tightly pressed against the wave trough positions of the lower chord bars or the auxiliary bars on the two sides of the steel bar frame, the non-dismantling template and the steel bar truss are relatively fixed, and the assembly is finished in a factory; after the hoisting is finished on the delivery site, concrete is poured, and the non-dismantling formwork is hung through the connecting piece, so that the existing supporting system is not needed for supporting, and the non-dismantling formwork or the simple supporting is adopted, thereby greatly generating the supporting cost and simultaneously improving the working efficiency; in addition, the lower end face of the connecting piece is not leaked due to the composition of the cement mortar layer, the problem that the lower end face self-tapping screw cap is rusted when the self-tapping screw penetrates through a cement fiberboard to be connected with C-shaped steel for supporting a steel bar truss in the prior art is solved, and the same service life of the non-dismantling template and the structure is really realized by adopting the structure; no matter adopt high strength plastic connecting piece or metal connecting piece all can use, the size can break the injecing of self tapping screw specification moreover, can select the bolt component that the received force intensity is higher than the self tapping screw according to actual need, and then the power of hanging can accomplish to be greater than the power of hanging of self tapping screw far away, guarantees the security in house.

In embodiment 4, referring to fig. 4, the connecting member in this embodiment may also be selected as a structure in which the connecting member 5 at least includes a limiting disc 5-1 and a connecting portion 5-2, the connecting portion is a nut, and the nut is installed in a prefabricated hole of the base bearing plate body. The method is basically consistent with the use method of the embodiment 3 in actual use; the difference is that the height of the nut is less than that of the connecting column, which is beneficial to transportation and reduces transportation space, and other properties are uniform and basically the same.

Above-mentioned technical scheme is preferred, prefabricated hole is circular, oval or polygon structure on the basis loading board. The connecting parts of the prefabricated holes and the connecting parts are of circular, oval or polygonal structures which are matched with each other.

When a round hole structure is adopted, in order to prevent the compression nut or the stud from rotating when the steel bar truss is installed, a high-strength adhesive is adopted for bonding and fixing before actual compounding, for example, marble glue is adopted; adopt other shapes can realize automatically preventing turning around, also can adopt the binder to bond in order to do benefit to compound cement mortar layer, prevent that the connecting piece from dropping before compounding.

Embodiment 5, please refer to fig. 5, in the basis of embodiment 1, the C-shaped steel member 6 is installed on the upper surface of the foundation bearing plate body through a fastening member, and is used for improving the bending strength of the non-dismantling formwork and simultaneously realizing the welding with the steel bar frame, wherein the C-shaped steel member may be a single piece or welded into a frame.

Embodiment 6, please refer to fig. 6 to 8, in embodiment 5, one end of the C-shaped steel member extends out of a side surface of the basic bearing plate body, the extended end portion can be lapped on the adjacent non-dismantling formwork by using the structure, and then the lower surface edge sealing gap is connected with the C-shaped steel member by penetrating the basic bearing plate body through the self-tapping screw, and then the crack resistance edge sealing and leveling is performed in the edge sealing gap through the mesh cloth and the cement mortar, so as to lock the stability of the position of the joints between the adjacent non-dismantling formworks, and further prevent the cracks at the joint position.

The utility model also discloses a floor support plate, please refer to fig. 9 to 12; the floor support plate is formed by splicing a plurality of disassembly-free template units, each disassembly-free template unit comprises a template and a steel bar truss 10, each template adopts the anti-cracking composite reinforced disassembly-free template, the upper surface of each disassembly-free template is fixedly connected with the steel bar truss through a fastener, the fastener can be a nut 8-1 or a stud and a plate-shaped member 8-2 lapped on a lower chord rib or an auxiliary rib of a steel bar frame, in practice, according to the building design requirements, whether a protective layer is required to be arranged below the steel bar frame or not is judged, the height of the protective layer is H, if the protective layer is required to be added, a cushion block 9 can be arranged on the upper surface of each disassembly-free template along the laying direction of the truss, the height of the cushion block is H and is used for supporting the steel bar truss, so that a concrete pouring space of the protective layer is formed, the cushion block can support the lower chord ribs singly and can also support two lower chord ribs simultaneously, the material can be concrete cushion block, nylon cushion block or aluminum alloy, steel plate supporting member, etc.

When the floor slab is poured by adopting the floor bearing plate, the floor slab is assembled on site according to the house-type drawing, concrete is poured after the assembly is finished, and the form-disassembly-free floor slab is formed after the concrete is solidified. According to actual construction requirements and design requirements, upper-layer structural ribs perpendicular to the steel bar trusses are paved on upper chord ribs of the steel bar trusses of the pre-assembled combined floor bearing plates on a concrete pouring layer and/or lower-layer structural ribs which are vertically crossed are paved on lower chord ribs of the steel bar trusses of the pre-assembled combined floor bearing plates on the concrete pouring layer.

In conclusion, by adopting the technical scheme, under the condition of meeting the compression resistance, the thickness of the basic bearing plate body is reduced, and the bending resistance is improved; because the basic bearing plate is a pressure plate, the density is higher, the dead weight of unit area is relatively larger, but the anti-bending performance is poor; the technical scheme is adopted for compounding, the bending strength of the composite board is obviously higher than that of a single-layer cement fiberboard under the condition of the same thickness, and the problem of seam cracking caused by bending and warping of the non-dismantling formwork in the actual construction process is further solved; and relatively light in weight; compared with the existing self-tapping screw, the built-in connecting piece greatly improves the connecting strength with a steel bar truss or a steel structure, improves the hanging capacity of the non-dismantling template after the pouring of the building structure body is finished, and really realizes the same service life of the non-dismantling template and the building structure; in addition, the cement mortar layer has the effect of reinforcing the disassembly-free template, and simultaneously has the problems of isolating air, preventing the connecting piece from being corroded or preventing the connecting piece from being rusted and then being impermeable. Additionally, the utility model discloses still have simple structure, easily produce the localization, improve advantages such as efficiency of construction.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An anti-cracking composite reinforced disassembly-free template; the concrete bearing plate comprises a basic bearing plate body compatible with a cement matrix, and is characterized in that a cement mortar layer is compounded on at least one of the upper surface and the lower surface of the basic bearing plate body; the two sides of the cement mortar layer are provided with edge sealing gaps, and at least one layer of gridding cloth and/or steel wire gauze is laid between the cement mortar layers or in the cement mortar layers.

2. The anti-cracking composite reinforced disassembly-free template of claim 1, which is characterized in that: the basic bearing plate body is a cement fiberboard or a calcium silicate board.

3. The anti-cracking composite reinforced disassembly-free template of claim 1, which is characterized in that: the upper surface of the basic bearing plate body is provided with a C-shaped steel member through a fastener.

4. The anti-cracking composite reinforced disassembly-free template of claim 1, which is characterized in that: the connecting piece is fixed relative to the foundation bearing plate, and one end of the connecting piece extends out of one side face of the foundation bearing plate body.

5. The utility model provides a building carrier plate, the building carrier plate is exempted from to tear open template unit concatenation by the several and is formed, it includes template and steel bar truss to exempt from to tear open template unit, its characterized in that: the template adopts the anti-cracking composite reinforced non-dismantling template as claimed in any one of claims 1 to 4, and a steel bar truss is fixedly installed on the upper surface of the non-dismantling template.