CN217580753U - Assembly type cast-in-place concrete formwork-removal-free steel bar truss floor bearing plate and floor system - Google Patents
Assembly type cast-in-place concrete formwork-removal-free steel bar truss floor bearing plate and floor system Download PDFInfo
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- CN217580753U CN217580753U CN202122831944.1U CN202122831944U CN217580753U CN 217580753 U CN217580753 U CN 217580753U CN 202122831944 U CN202122831944 U CN 202122831944U CN 217580753 U CN217580753 U CN 217580753U
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Abstract
The utility model discloses an assembly type cast-in-place concrete form removal-free steel bar truss floor support plate and a floor system, which belong to the field of assembly type building structures, wherein the floor support plate comprises a removal-free bottom plate arranged at the bottom, a plurality of steel bar assemblies arranged at the upper part of the removal-free bottom plate and a plurality of metal connecting pieces for connecting the removal-free bottom plate and the steel bar assemblies; the metal connecting piece comprises a metal cushion block and a fastening piece; the metal cushion block at least comprises a bottom surface and two opposite side surfaces, clamping grooves for limiting the steel bars are formed in the two side surfaces of the metal cushion block, and holes are formed in the bottom surface of the metal cushion block; the fastener penetrates through the disassembly-free bottom plate and is tightly connected with the metal cushion block through the hole; the floor system sequentially comprises a surface layer, an additional layer, a structural layer formed by combining the floor bearing plates and the like and a ceiling decorative surface layer from top to bottom. The utility model discloses preparation simple process, sound construction, stable performance, bearing capacity height, tensile pulling resistance ability reinforce, the connecting piece durability is good, production efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of the assembly type building structure technique and specifically relates to an assembled cast in situ concrete exempts from to tear open mould steel bar truss building carrier plate and floor system.
Background
At present, the country vigorously pushes assembly type buildings, industrial production and assembly type construction are certainly to become the main construction mode in the future, most prefabricated components and parts are standardized, serialized and industrialized, various floor forms are also appeared and developed in succession, and particularly, products such as precast concrete composite slabs are popularized and applied in a large quantity, so that the development of the assembly type buildings is actively promoted. However, for the precast concrete composite slab, the production process is complex, a post-cast strip needs to be arranged and a suspended form needs to be erected, the construction difficulty is high, the indoor clear height is reduced, the construction cost is relatively high, and the like. Therefore, the assembled cast-in-place concrete formwork-removal-free steel bar truss floor bearing plate appears in the market.
The assembled cast-in-place concrete formwork-removal-free steel bar truss floor bearing plate is a novel assembled floor bearing plate which is produced integrally in a factory and can be assembled fully automatically. The steel bar assembly is formed by connecting a disassembly-free bottom plate and the steel bar assembly through a connecting component in a factory or a construction site. And pouring concrete on the floor bearing plate according to design requirements in a construction site, and performing related post-treatment on the upper surface and the lower surface of the floor after maintenance is completed to form the assembled cast-in-place concrete form-removal-free steel bar truss floor system.
The fabricated cast-in-place concrete form-removal-free steel bar truss floor system meets the national and local requirements on the development of fabricated buildings, has certain policy support in the aspects of land, planning, tax, fund and the like, and meets the policy requirements of the state for pushing fabricated buildings. In this floor system, floor carrier plate production simple process, production efficiency is high, has saved the template engineering during construction use, has improved floor construction quality and performance, and the construction speed is faster, can save cost of labor and time limit for a project greatly, is a comparatively ideal festival material, environmental protection floor system.
In assembled cast in situ concrete exempt from to tear open mould steel bar truss floor carrier plate and floor system, the core component is to exempt from to tear open mould steel bar truss floor carrier plate, and it includes exempt from to tear open bottom plate, reinforcing bar subassembly and metal connecting piece. Among the prior art, use resistance spot welding mode to weld metal connecting piece and reinforcing bar subassembly usually to with reinforcing bar subassembly with exempting from to tear open bottom plate firm in connection, form the assembled and exempt from to tear open mould steel bar truss building carrier plate.
The metal connecting piece and the steel bar assembly are connected in a welding mode, and the defects of high difficulty, low efficiency and the like of field construction exist, so that in order to overcome the defects in a targeted mode, a novel assembly type cast-in-place concrete formwork-removal-free steel bar truss floor bearing plate and a floor system need to be researched and developed.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide an assembly type cast-in-place concrete form-removal-free steel bar truss floor support plate and a floor system, which have the advantages of simple manufacturing process, firm and reliable structure, stable performance, high bearing capacity, strong pulling resistance, good durability of connecting pieces, no aging after long-term use and the like; the connection is carried out without using a welding mode, so that the production efficiency and the convenience are improved.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
an assembly type cast-in-place concrete form-removal-free steel bar truss floor bearing plate comprises a removal-free bottom plate arranged at the bottom, a plurality of steel bar assemblies arranged at the upper part of the removal-free bottom plate and a plurality of metal connecting pieces for connecting the removal-free bottom plate and the steel bar assemblies; the metal connecting piece comprises a metal cushion block and a fastening piece; the metal cushion block at least comprises a bottom surface and two opposite side surfaces, clamping grooves for limiting the steel bars are formed in the two side surfaces of the metal cushion block, and holes are formed in the bottom surface of the metal cushion block; and the fastening piece penetrates through the disassembly-free bottom plate and is tightly connected with the metal cushion block through the hole.
The utility model discloses technical scheme's further improvement lies in: the fastener at least comprises 1 screw, and the screw passes through the disassembly-free bottom plate and then is tightly anchored with the metal cushion block through the hole.
The utility model discloses technical scheme's further improvement lies in: the clamping groove openings of the metal connecting pieces are horizontally arranged outwards or are arranged in a mode of inclining upwards with an angle, and the clamping grooves are arranged at the same positions on two opposite side faces of the metal connecting pieces.
The utility model discloses technical scheme's further improvement lies in: the metal cushion block is any one of U-shaped steel, inverted U-shaped steel or square steel tube which is formed by punching a whole steel plate; the fastener penetrates the bottom surface of the metal spacer and extends a distance upward.
The utility model discloses technical scheme's further improvement lies in: when the metal connecting piece is connected with the disassembly-free bottom plate and the steel bar assembly, the opening directions of the clamping grooves of the two adjacent rows of metal cushion blocks are opposite, or the opening directions of the clamping grooves of the two adjacent metal cushion blocks are opposite in the metal cushion block of the same row.
The utility model discloses technical scheme's further improvement lies in: the steel bar assembly at least comprises steel bar trusses fixed together in a welding mode; the steel bar truss comprises an upper chord steel bar, two lower chord steel bars and two web bars which are used for connecting the upper chord steel bar and the lower chord steel bar.
The utility model discloses technical scheme's further improvement lies in: the steel bar truss adopts any one of a plane truss, a triangular three-dimensional truss with the length of the lower chord steel bar being consistent with that of the upper chord steel bar, and a triangular three-dimensional truss with the length of the lower chord steel bar being greater than that of the upper chord steel bar.
The utility model discloses technical scheme's further improvement lies in: the steel bar assembly also comprises a steel bar welding net fixed with the steel bar truss; the steel bar welding mesh comprises transverse steel bars and longitudinal steel bars which are arranged in a staggered mode.
The utility model discloses technical scheme's further improvement lies in: the disassembly-free bottom plate is made of any one of a fiber cement plate, a calcium silicate plate, a high-strength gypsum plate, a glass magnesium plate and a glass fiber cement plate.
The assembled cast-in-place concrete form-removal-free steel bar truss floor system sequentially comprises a surface layer for laying the ground, an additional layer for performing waterproof heat-preservation and heat-insulation treatment on the upper surface of a structural layer, the structural layer and a ceiling finish coat for processing the structural layer into a room ceiling from top to bottom; the structural layer is a reinforced concrete layer formed by combining assembled cast-in-place concrete form-removal-free reinforced truss floor bearing plate, additional connecting steel bars and cast concrete.
Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:
1. the utility model adopts the clamping groove type metal connecting piece to connect the disassembly-free bottom plate and the steel bar component together, and has the advantages of simple manufacturing process, firm and reliable structure, stable performance, high bearing capacity, strong anti-pulling capacity, good durability of the connecting piece, no aging after long-term use and the like; in addition, the metal connecting piece is connected with the steel bar assembly through the clamping groove, and the metal connecting piece is not connected in a welding mode, so that the difficulty of site construction is reduced, and the production efficiency and convenience are improved.
2. The utility model discloses a board is pour for non-prefabricated to assembled exempt from to tear open mould steel bar truss building carrier plate, light in weight, intensity height, be convenient for transportation and installation to but the internal mechanized mass production in mill of short time is applicable to any structure.
3. The utility model discloses an exempt from to tear open bottom plate face levels, need not to reserve the post-cast strip after the installation, does not leak thick liquid.
4. The utility model discloses an exempt from to tear open bottom plate can directly carry out decoration, and its structural reinforcement arranges that the interval is even, concrete protection layer thickness is unanimous, has improved the construction quality of floor system.
5. The utility model discloses a mould steel bar truss building carrier plate is exempted from to tear open by assembled can show and reduce on-the-spot reinforcement engineering volume for the construction progress increases construction safety and guarantees, realizes civilized construction.
6. The utility model discloses need not to demolish the template, save steel and template, practice thrift construction cost, accord with the requirement of national energy-concerving and environment-protective policy.
Drawings
Figure 1 is a transverse cross-sectional view of a mid-floor system of the present invention;
fig. 2 is a longitudinal sectional view of the middle floor system of the present invention;
FIG. 3 is a schematic view of a three-dimensional structure of a middle-fabricated cast-in-place concrete form-removal-free steel bar truss floor deck of the present invention;
FIG. 4 is a schematic plan view of a middle fabricated cast-in-place concrete form-removal-free steel bar truss floor deck of the present invention;
FIG. 5 is a partial schematic view of the fabricated cast-in-place concrete form-removal-free steel bar truss floor deck using metal connectors according to the present invention;
FIG. 6 is a partial schematic view of the assembled cast-in-place concrete form-removal-free steel bar truss floor deck of the utility model using the triangular three-dimensional truss with the length of the lower chord steel bar being identical to that of the upper chord steel bar;
fig. 7 is a partial schematic view of the assembled cast-in-place concrete form-removal-free steel bar truss floor support plate of the utility model adopting the triangular three-dimensional truss with the lower chord steel bar length being greater than the upper chord steel bar length;
the steel bar truss structure comprises 1, steel bar trusses, 1-1, upper chord steel bars, 1-2, web bars, 1-3, lower chord steel bars, 2, steel bar welding nets, 2-1, transverse steel bars, 2-2, longitudinal steel bars, 3, metal connecting pieces, 4, screws, 5, disassembly-free bottom plates, 6, poured concrete, 7, surface layers, 8, additional layers, 9, structural layers, 10 and ceiling finish layers.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
it should be noted that, in the description of the present invention, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the direction or position relationship based on the direction or position relationship shown in the drawings, and the technical solution of the present invention is only for convenience of description and understanding, and the above description is not limiting to the present invention, and the present invention is not limited to the above description, and the changes, modifications, additions or substitutions made by those skilled in the art within the essential scope of the present invention should be regarded as the protection scope of the present invention.
For simplicity and clarity of description, a fabricated cast-in-place concrete form-removal-free steel bar truss floor system is called a floor system for short in a specific place; the 'fabricated cast-in-place concrete form-removal-free steel bar truss floor bearing plate' is called 'floor bearing plate' for short.
As shown in fig. 1 to 5, an assembly type cast-in-place concrete form-removal-free steel bar truss floor deck comprises a removal-free bottom plate 5 arranged at the bottom, a plurality of steel bar assemblies arranged at the upper part of the removal-free bottom plate 5 and a plurality of metal connecting pieces 3 connecting the removal-free bottom plate 5 and the steel bar assemblies; the metal connecting piece 3 comprises a metal cushion block and a fastener; the metal cushion block at least comprises a bottom surface and two opposite side surfaces, clamping grooves for limiting the steel bars are formed in the two side surfaces of the metal cushion block, and holes are formed in the bottom surface of the metal cushion block; the fastener penetrates through the disassembly-free bottom plate 5 and then is tightly connected with the metal cushion block through the hole.
Specifically, the connection mode of the fastener and the metal cushion block can be selected according to the specific type of the fastener, and the fastener can be anchored, riveted, welded, expanded, buckled and the like. The fastening piece at least comprises 1 screw 4, and the screw 4 is tightly anchored with the metal cushion block through the hole after penetrating through the non-dismantling bottom plate 5.
The number of the reinforcing bar assemblies and the metal connecting members 3 is set according to actual conditions, and generally uniformly arranged for convenient installation and firm structure, as shown in fig. 1 to 5.
And the shape of metal cushion also is not unique, it need possess a bottom surface and two sides at least, except above-mentioned U shaped steel, the metal cushion can also set up to "nearly" font steel or C shaped steel or square steel pipe, specifically adopt which kind of structure, can select according to actual conditions, but no matter which kind of structure is adopted to the metal cushion, the fastener all must pierce through the bottom surface of metal cushion and upwards extend a distance, the fastener is in the same place with the concrete bond, under the condition of constructor safety when not influencing reinforcing bar subassembly and arranging and installing, the distance of penetrating is longer, then the faying face of fastener and concrete is bigger, then bond strength is bigger.
The opening of the clamping groove of the metal connecting piece 3 is horizontally arranged outwards or upwards inclined with an angle, and the clamping groove is arranged at the same position on two opposite side surfaces of the metal connecting piece 3.
At least one metal cushion block in all the metal cushion blocks is opposite to the opening direction of the clamping grooves of other metal cushion blocks. As shown in fig. 3, 4 and 5, when the metal connecting piece 3 connects the non-dismantling base plate 5 and the steel bar assembly, the opening directions of the clamping grooves of two adjacent rows of metal cushion blocks are opposite; or in the metal cushion blocks on the same row, the opening directions of the clamping grooves of two adjacent metal cushion blocks are opposite, and the two modes can play a role in ensuring the stability of fixing the steel bar component.
And, the height of metal connecting piece 3 need guarantee that the minimum point of steel bar subassembly and exempt from to tear open bottom plate 5 upper surface and form fixed steel bar protective layer distance, and steel bar protective layer distance is more than or equal to the minimum value that prescribes in the concrete standard, and pour and fill up the concrete. When the concrete standard is regulated, the distance between the steel bar protection layers is correspondingly regulated.
The steel bar assembly at least comprises a steel bar truss 1 fixed together in a welding mode, and the steel bar truss 1 comprises an upper chord steel bar 1-1, two lower chord steel bars 1-3 and two web bars 1-2 connecting the upper chord steel bar 1-1 and the lower chord steel bars 1-3. The structural form of the steel bar truss 1 is any one of a plane truss, a triangular three-dimensional truss (shown in figure 6) with the length of the lower chord steel bar being consistent with that of the upper chord steel bar, and a triangular three-dimensional truss (shown in figure 7) with the length of the lower chord steel bar being greater than that of the upper chord steel bar. The steel bar assembly can also comprise a steel bar welding net 2 which is fixed with the steel bar truss in a binding or welding mode, and the steel bar welding net 2 comprises transverse steel bars 2-1 and longitudinal steel bars 2-2 which are arranged in a staggered mode.
In the aspect of material selection, the disassembly-free bottom plate 5 is any one of a fiber cement plate, a calcium silicate plate, a high-strength gypsum plate, a glass magnesium plate and a glass fiber cement plate; the metal cushion block can be made of galvanized steel plates or stainless steel plates, and can also be made of steel plates made of other materials as long as the use requirements are met.
The assembled cast-in-place concrete form-removal-free steel bar truss floor system is formed by combining the assembled cast-in-place concrete form-removal-free steel bar truss floor support plates, and the floor system sequentially comprises a surface layer 7 for laying the ground, a structural layer 9 and a ceiling decorative layer 10 processed into a room ceiling from top to bottom. The additional layer 8 carries out waterproof heat preservation and heat insulation treatment on the upper surface of the structural layer 9; building carrier plate and additional connecting reinforcement are mainly set up in structural layer 9, and additional connecting reinforcement lays according to the structural design requirement, and building carrier plate and additional connecting reinforcement arrange to pour concrete 6 into after accomplishing, finally combine to form reinforced concrete layer.
The working principle and the using method are as follows:
the utility model discloses in, broken through traditional use resistance spot welding mode with connecting piece and reinforcing bar subassembly welded mode, adopted metal connecting piece 3 will exempt from to tear open bottom plate 5 and reinforcing bar subassembly and link together, metal connecting piece 3 comprises metal cushion and fastener, sets up the draw-in groove that is used for spacing reinforcing bar on two sides of metal cushion for metal connecting piece 3 passes through the draw-in groove with the reinforcing bar subassembly in the system and is connected, does not use the welding mode to connect, has improved production efficiency and convenience. Meanwhile, a fastener (specifically, a screw 4 with a cross groove countersunk head) can be used to penetrate through the disassembly-free bottom plate 5 and be tightly connected with the metal connecting piece (specifically, an anchoring mode can be adopted), the tail part of the fastener does not protrude out of the lower surface of the disassembly-free bottom plate 5, the steel bar truss 1 and the steel bar welding net 2 are reliably fixed in a binding or welding mode, the steel bar assembly floor bearing plate is formed after the factory integration production is completed, before leaving a factory, the tail part of the fastener (specifically, the countersunk head part of the screw 4) needs to be subjected to anticorrosion treatment, if mortar plugging is coated, antirust paint is brushed, and the like, and corrosion is prevented.
In the work progress, lay additional connecting reinforcement according to structural design requirement on the building carrier plate, concreting and maintenance, building carrier plate, additional connecting reinforcement combine the reinforced concrete layer that forms with the concrete as structural layer 9, after the construction is accomplished, exempt from to tear open bottom plate 5 and need not to dismantle. And further carrying out post-treatment construction on the upper surface and the lower surface of the floor slab, wherein the post-treatment construction comprises the steps of carrying out surface finishing treatment on the lower surface to form a room ceiling, carrying out water-proof, heat-preservation, heat-insulation and other treatments on the upper surface to form an additional layer, paving the ground and the like. All the above-mentioned each layer structures unitedly combine and become assembled cast in situ concrete exempts from form removal steel bar truss floor system.
In summary, the disassembly-free bottom plate and the steel bar component are connected together by the metal connecting piece, and the manufactured floor support plate and the floor system have the advantages of simple manufacturing process, firm and reliable structure, stable performance, high bearing capacity, strong pulling resistance, good durability of the connecting piece, no aging after long-term use and the like; in addition, the metal connecting piece is connected with the steel bar assembly through the clamping groove, and the metal connecting piece is not connected in a welding mode, so that the difficulty of site construction is reduced, and the production efficiency and convenience are improved.
Claims (8)
1. The utility model provides an assembled cast in situ concrete exempts from to tear off mould steel bar truss building carrier plate, its characterized in that: comprises a disassembly-free bottom plate (5) arranged at the bottom, a plurality of steel bar assemblies arranged at the upper part of the disassembly-free bottom plate (5) and a plurality of metal connecting pieces (3) for connecting the disassembly-free bottom plate (5) and the steel bar assemblies; the metal connecting piece (3) comprises a metal cushion block and a fastening piece; the metal cushion block at least comprises a bottom surface and two opposite side surfaces, clamping grooves for limiting the steel bars are formed in the two side surfaces of the metal cushion block, and holes are formed in the bottom surface of the metal cushion block; the fastener penetrates through the disassembly-free bottom plate (5) and is tightly connected with the metal cushion block through the hole; the opening of the clamping groove of the metal connecting piece (3) is horizontally outwards arranged or upwards inclined with an angle, and the clamping groove is arranged at the same position on two opposite side surfaces of the metal connecting piece (3); the metal cushion block is any one of U-shaped steel, inverted U-shaped steel or square steel pipe which is formed by punching a whole steel plate; the fastener penetrates the bottom surface of the metal cushion block and extends upwards for a certain distance.
2. The fabricated cast-in-place concrete form-removal-free steel bar truss floor deck as claimed in claim 1, wherein: the fastener at least comprises 1 screw (4), and the screw (4) penetrates through the disassembly-free bottom plate (5) and is tightly anchored with the metal cushion block through the hole.
3. The assembly type cast-in-place concrete form-removal-free steel bar truss floor deck as claimed in claim 1, wherein: when the metal connecting piece (3) is connected with the disassembly-free bottom plate (5) and the steel bar assembly, the opening directions of the clamping grooves of the two adjacent rows of metal cushion blocks are opposite, or the opening directions of the clamping grooves of the two adjacent metal cushion blocks are opposite in the metal cushion block of the same row.
4. The assembly type cast-in-place concrete form-removal-free steel bar truss floor deck as claimed in claim 1, wherein: the steel bar assembly at least comprises a steel bar truss (1) fixed together in a welding mode; the steel bar truss (1) comprises an upper chord steel bar (1-1), two lower chord steel bars (1-3) and two web bars (1-2) connecting the upper chord steel bar (1-1) and the lower chord steel bar (1-3).
5. The fabricated cast-in-place concrete form-removal-free steel bar truss floor deck as claimed in claim 4, wherein: the structural form of the steel bar truss (1) adopts any one of a plane truss, a triangular three-dimensional truss with the length of the lower chord steel bar being consistent with that of the upper chord steel bar, and a triangular three-dimensional truss with the length of the lower chord steel bar being greater than that of the upper chord steel bar.
6. The fabricated cast-in-place concrete form-removal-free steel bar truss floor deck as claimed in claim 4, wherein: the steel bar assembly also comprises a steel bar welding net (2) fixed with the steel bar truss (1); the steel bar welding mesh (2) comprises transverse steel bars (2-1) and longitudinal steel bars (2-2) which are arranged in a staggered mode.
7. The fabricated cast-in-place concrete form-removal-free steel bar truss floor deck as claimed in claim 1, wherein: the disassembly-free bottom plate (5) is made of any one of a fiber cement plate, a calcium silicate plate, a high-strength gypsum plate, a glass magnesium plate and a glass fiber cement plate, and the metal cushion block is made of a galvanized steel plate or a stainless steel plate.
8. A floor system using the fabricated cast-in-place concrete form-removal-free steel bar truss floor deck according to any one of claims 1 to 7, wherein: the floor system sequentially comprises a surface layer (7) for paving the ground, an additional layer (8) for performing waterproof heat-preservation and heat-insulation treatment on the upper surface of a structural layer (9), the structural layer (9) and a ceiling decorative surface layer (10) for processing into a room ceiling from top to bottom; the structural layer (9) is a reinforced concrete layer formed by combining an assembled cast-in-place concrete form-removal-free reinforced truss floor bearing plate, additional connecting steel bars and poured concrete (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122831944.1U CN217580753U (en) | 2021-11-18 | 2021-11-18 | Assembly type cast-in-place concrete formwork-removal-free steel bar truss floor bearing plate and floor system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122831944.1U CN217580753U (en) | 2021-11-18 | 2021-11-18 | Assembly type cast-in-place concrete formwork-removal-free steel bar truss floor bearing plate and floor system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123506A (en) * | 2021-04-25 | 2021-07-16 | 重庆涛扬绿建科技有限公司 | Prefabricated die-removal-free steel bar truss floor bearing plate based on uhpc and using method |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123506A (en) * | 2021-04-25 | 2021-07-16 | 重庆涛扬绿建科技有限公司 | Prefabricated die-removal-free steel bar truss floor bearing plate based on uhpc and using method |
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