CN115787893A - Integrated preparation method of precast concrete protective layer and reinforcement cage - Google Patents
Integrated preparation method of precast concrete protective layer and reinforcement cage Download PDFInfo
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- CN115787893A CN115787893A CN202211556013.8A CN202211556013A CN115787893A CN 115787893 A CN115787893 A CN 115787893A CN 202211556013 A CN202211556013 A CN 202211556013A CN 115787893 A CN115787893 A CN 115787893A
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Abstract
The invention relates to the technical field of building construction, and discloses an integrated preparation method of a precast concrete protective layer and a reinforcement cage, which has the technical scheme key points that the method comprises the following steps: s1, splicing the steel bars into an appearance matched with a concrete member in a form of pattern in a fixed connection (welding or bundling) mode to form a steel bar cage; s2, a mother board is preset, concrete is poured on the mother board to form a layer body, and the mother board 1 and the layer body are combined to form a protective layer; s3, fixedly connecting a plurality of fasteners penetrating through the layer body on the layer body 2; s4, determining the slotting position and shape according to the matched component deepening drawing; and S5, a plurality of first through grooves are formed in the layer body, the layer body is divided into sections by the first through grooves, the number of the divided sections of the layer body is matched with the number of the side faces of the reinforcement cage to be wrapped, a second through groove is formed in the face, opposite to the face, of the layer body, of which the groove is formed, the number of the second through grooves is matched with the first through grooves, and the position of the second through grooves is opposite to that of the first through grooves.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an integrated preparation method of a precast concrete protective layer and a reinforcement cage.
Background
Most of the prefabricated members in the prior art need to be prefabricated together with steel bars and concrete, but the process is time-consuming and inconvenient to transport;
in the prior art, a method for prefabricating a reinforcement cage firstly and then pouring four surfaces of the reinforcement cage respectively is adopted, so that the method reduces the consumption of time cost and the transportation problem, but the time cost is only relieved to a certain extent when the four surfaces are poured respectively, and the time consumption is not greatly reduced.
The cast-in-place reinforced concrete project needs a large amount of template projects, the construction period is long, the concrete pouring quality is difficult to control, and the construction measure cost is high. On the other hand, the existing assembled integral concrete engineering in the prior art only can reduce the use of local formworks, a large amount of supports and formworks are still needed on site, and the quality of prefabricated parts is generally not high. The prefabricated part has heavy weight, high requirements on tower cranes and the like and difficult installation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an integrated preparation method of a precast concrete protective layer and a reinforcement cage.
In order to realize the purpose, the invention provides the following technical scheme: the integrated preparation method of the precast concrete protective layer and the reinforcement cage comprises the following steps:
s1, splicing steel bars into an appearance matched with a concrete member in a mode of fixed connection (welding or bundling) to form a steel bar cage;
s2, a mother board is preset, concrete is poured on the mother board to form a layer body, and the mother board and the layer body are combined to form a protective layer;
s3, fixedly connecting a plurality of fasteners penetrating through the layer body on the layer body;
s4, determining the position and the shape of the slot according to the matched component deepening drawing;
s5, a plurality of first through grooves are formed in the layer body 2, the layer body is divided into sections by the first through grooves, the number of the divided sections of the layer body is matched with the number of the side faces of the reinforcement cage to be wrapped, a second through groove is formed in the surface, opposite to the surface, of the layer body, the number of the second through grooves is matched with the first through grooves, and the position of the second through grooves is opposite to the first through grooves;
s6, enabling the layer body to be close to the reinforcement cage and fixedly connected, and bending the mother board according to the positions of the second through groove and the first through groove to complete the surrounding of the side face of the reinforcement cage;
s7, fixedly connecting two ends of the enclosed mother board;
and S8, a connecting rod penetrates through the two opposite fasteners, and the connecting rod is fixedly connected with the two fasteners 8.
As a further improvement of the present invention, the substep of S8 is to fixedly connect a connector to a side of the fastener close to the reinforcement cage 3, wherein the connector is detachably connected to the reinforcement cage.
As a further improvement of the invention, the substep of S2 is pre-buried in the layer body in the motherboard.
As a further improvement of the invention, the two layer bodies have the same thickness, and the thickness is 15 mm-25 mm.
As a further improvement of the invention, when the protective layer 5 surrounds the reinforcement cage 3 and needs to be folded into an external corner; the first through groove has a first shape, and the second through groove 12 has a second shape
As a further improvement of the invention, when the protective layer surrounds the reinforcement cage and needs to be folded into an internal corner; the first through groove is in a second shape, and the second through groove is in a first shape
As a further improvement of the present invention, the first shape is an isosceles triangle, and the second shape is a rectangle.
As a further improvement of the invention, the material of the layer body is fiber concrete.
As a further improvement of the present invention, the substep of S1 is that the reinforcement cage is formed by stacking a plurality of reinforcement bars longitudinally and transversely and then fixedly connecting the reinforcement cages together to form a grid-shaped reinforcement grid.
As a further improvement of the invention, the depths of the second through groove and the first through groove are matched and are both 15 mm-18 mm.
As a further improvement of the invention, when the protective layers surround the side surfaces of the steel reinforcement cage, grooving treatment is not needed, the protective layers are not bent any more, at the moment, the steel reinforcement cage is surrounded by at least two protective layers in a splicing manner, and two adjacent protective layers are fixedly connected with each other.
The further substep of S3 is to embed a fastener on the layer body in advance, the fastener has a screw thread on the hollow surface,
and a further substep of S8 is that the connecting rod is a threaded rod and is in threaded connection with the fastener to form a split bolt.
Furthermore, the fastener is provided with a gasket with a large area, and the reinforcement cage 3 can be fixedly connected and welded with the gasket.
Further, after the protective layer and the reinforcement cage are installed, the protective layer 5 is punched by a percussion drill, and then a fastener is installed in the hole.
As a further improvement of the present invention, the substep of S2 is to preset a mother plate, and cast concrete on a single surface of the mother plate to form a layer body, in which case the mother plate 1 is made of a metal material with high ductility and is a plate material.
And the substep of S4 is to arrange a plurality of first through grooves on the layer body, wherein when the layer body is bent, the first through grooves are isosceles triangles when the external corners need to be bent, and the first through grooves are rectangles when the internal corners need to be bent.
As a further improvement of the invention, a section of the side surface of the layer body close to the edge of the mother board is cut off by 1 mm-2.5 mm, and then the exposed mother board part is connected with the edge of the other side of the mother board.
As a further improvement of the present invention, the mother plate 1 is stamped in advance to form a concave-convex surface (see fig. 3).
The invention has the advantages of
(1) The precast concrete protective layer and reinforcement cage integrated component is low in weight, simple to install compared with a precast concrete component, capable of realizing industrial production and high in production efficiency. The precast concrete protective layer can be used as a template for later pouring concrete, so that the use of site templates is greatly reduced, the template-free process is realized, the construction measure cost is reduced, the time of prefabrication in a factory is greatly shortened, the precast concrete protective layer is more convenient and fast in the transportation process, the condition of bad transportation due to different shapes cannot occur, and the precast concrete protective layer is simpler and more convenient to install.
(2) According to the invention, the concrete protective layer with a certain thickness is reserved outside the reinforcement cage to meet the requirement of durability, and then the prefabricated reinforcement cage and the protective layer are connected with each other to form a hollow self-balancing prefabricated component which can be applied to structural components such as columns, beams, shear walls and the like, and the core concrete of the structural component is poured once to form a whole after the prefabricated component is transported to a construction site and installed, so that the construction method is more convenient and practical, and the mould-free construction method is realized.
(3) According to the invention, the steel reinforcement cage is made into the mesh steel reinforcement net sheet, namely, the two-way steel reinforcement bars are respectively arranged and jointed at a certain interval to form a mesh, and the position of the protective layer and the position filled with concrete inside form a shear key, so that the stability is improved.
(4) The concave-convex surface is formed by punching the mother board, so that the connection relation between the protective layer and the mother board is ensured, namely, the biting force is stronger, and the overall strength is increased.
(5) According to the invention, the threaded sleeve rods are installed or embedded in advance by punching holes on the protective layer through the percussion drill, so that the screw rod can be connected with two of the threaded sleeve rods to form transverse stress, and the split bolt is formed after the combined reinforcement cage and the protective layer are penetrated by the screw rod, so that the overall strength is increased.
(6) The threaded sleeve rod is convenient to be fixedly connected with a steel reinforcement cage after the gasket is additionally arranged on the threaded sleeve rod, and meanwhile, the screw rod is sleeved with the hook, so that the screw rod is hooked with the steel reinforcement cage, and the steel reinforcement cage is tightly combined with the prefabricated protective layer.
Drawings
FIG. 1 is a schematic diagram of a protective layer according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a protective layer according to a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a motherboard according to a third embodiment of the present invention;
FIG. 4 is a schematic view of the structure of the present invention in use;
FIG. 5 is a schematic view showing the configuration of the present invention in a state of folding the male and female corners;
FIG. 6 is a schematic view of a structure in which at least two protective layers are spliced when the present invention is in use;
FIG. 7 is a schematic view of the internal structure of the present invention;
FIG. 8 is a schematic view of the full external corner folding configuration of the present invention in use;
fig. 9 is a schematic cross-sectional view of fig. 7 according to the present invention.
Reference numerals are as follows: 1. a motherboard; 11. a first through groove; 12. a second through groove; 2. a layer body; 3. a reinforcement cage; 5. a protective layer; 7. a connecting rod; 8. a fastener.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
In a first specific embodiment, referring to fig. 1 and fig. 4 to 9, the method for integrally preparing a precast concrete protective layer and a reinforcement cage in this embodiment includes the following steps:
s1, splicing the steel bars into an appearance matched with a concrete member in a form of pattern in a fixed connection (welding or bundling) mode to form a steel bar cage 3;
s2, presetting a mother board 1, pouring concrete on the mother board 1 to form a layer body 2, and combining the mother board 1 and the layer body 2 into a protective layer 5;
s3, fixedly connecting a plurality of fasteners 8 penetrating through the layer body 2 on the layer body 2;
s4, determining the slotting position and shape according to the matched component deepening drawing;
s5, a plurality of first through grooves 11 are formed in the layer body 2, the layer body 2 is divided into sections by the first through grooves 11, the number of the divided sections of the layer body 2 is matched with the number of the side faces of the reinforcement cage 3 to be wrapped, a second through groove 12 is formed in the face, opposite to the face where the groove is formed in the layer body 2, the number of the second through grooves 12 is matched with the number of the first through grooves 11, and the position of the second through grooves 12 is opposite to that of the first through grooves 11;
s6, the layer body 2 is close to the reinforcement cage 3 and fixedly connected, and the mother board 1 is bent according to the positions of the second through groove 12 and the first through groove 11, so that the side surface of the reinforcement cage 3 is surrounded;
s7, fixedly connecting the two ends of the surrounded mother board 1;
and S8, passing a connecting rod 7 between two opposite fasteners 8, and fixedly connecting the connecting rod 7 and the two fasteners 8 with each other.
As shown, the sub-step of S8 is to fixedly connect a connector to a side of the fastener 8 close to the reinforcement cage 3, and the connector is detachably connected to one of the reinforcements of the reinforcement cage 3.
As shown in the figure, the substep of S2 is to pre-embed the motherboard 1 in the layer body 2.
As shown in the figure, the two layer bodies 2 have the same thickness, and the thickness is 15mm to 25mm.
As shown in fig. 4-9, when the protective layer 5 surrounds the reinforcement cage 3 and needs to be folded into an external corner; the first through grooves 11 are in a first shape, and the second through grooves 12 are in a second shape.
As shown in fig. 4-9, when the protective layer 5 surrounds the reinforcement cage 3 and needs to be folded into an internal corner; the first through groove 11 is in a second shape, and the second through groove 12 is in a first shape.
As shown in fig. 4-9, the first shape is an isosceles triangle and the second shape is a rectangle.
As shown in fig. 4-9, the material of the layer body 2 is fiber concrete.
As shown in fig. 4-9, the substep of S1 is that the reinforcement cage 3 is formed by stacking a plurality of reinforcement bars in the longitudinal and transverse directions and then fixedly connecting the reinforcement bars to form a grid-shaped reinforcement grid.
As shown in fig. 4-9, the depths of the second through groove 12 and the first through groove 11 are matched, and both are 15mm to 18mm.
As shown in fig. 4 to 9, when the protective layer 5 surrounds the side surface of the reinforcement cage 3, grooving process may not be performed, the protective layer 5 is not bent, at this time, the reinforcement cage 3 is surrounded by at least two protective layers 5 in a splicing manner, and two adjacent protective layers 5 are fixedly connected to each other.
As shown in fig. 4-9, the substep of S3 is to pre-embed the fastening member 8 on the layer body 2, the hollow surface of the fastening member 8 is threaded,
as shown in fig. 4 to 9, the substep of S8 is that the connecting rod 7 is a threaded rod and is in threaded connection with the fastener 8 to form a split bolt.
As shown in fig. 4-9, the fastening member 8 is provided with a gasket with a large area, and the reinforcement cage 3 can be fixedly connected and welded with the gasket.
The working principle is as follows: as shown in fig. 1 and 4-9, when in use
S1, splicing the steel bars into an appearance matched with the concrete member in a form of pattern through a fixed connection welding or bundling mode to form a steel bar cage 3;
s2, presetting a mother board 1, pouring concrete on the mother board 1 to form a layer body 2, and combining the mother board 1 and the layer body 2 into a protective layer 5;
s3, fixedly connecting a plurality of fasteners 8 penetrating through the layer body 2 on the layer body 2;
s4, determining the slotting position and shape according to the matched component deepening drawing;
s5, forming a plurality of first through grooves 11 in the layer body 2, wherein the layer body 2 is divided into sections by the first through grooves 11, the number of the divided sections of the layer body 2 is matched with the number of the side faces of the reinforcement cage 3 to be wrapped, forming second through grooves 12 in the opposite faces of the grooved face of the layer body 2, the number of the second through grooves 12 is matched with that of the first through grooves 11, and the positions of the second through grooves 12 are opposite to those of the first through grooves 11;
s6, enabling the layer body 2 to be close to the reinforcement cage 3 and fixedly connected, and bending the mother board 1 according to the positions of the second through groove 12 and the first through groove 11 to complete the enclosure of the side face of the reinforcement cage 3;
s7, fixedly connecting the two ends of the surrounded mother board 1;
and S8, passing a connecting rod 7 between two opposite fasteners 8, and fixedly connecting the connecting rod 7 and the two fasteners 8 with each other.
In the second embodiment, as shown in fig. 2, different from the first embodiment, as a further improvement of the present invention, the substep S2 is to preset a mother plate 1, and cast concrete on a single surface of the mother plate 1 to form a layer body 2, where the mother plate 1 is made of a metal material with high ductility and is a plate. The substep of S4 is to provide a plurality of first through grooves 11 on the layer body 2, when bending, the first through grooves 11 are isosceles triangles when the external corner needs to be folded, and the first through grooves 11 are rectangles when the internal corner needs to be folded. Cutting off 1 mm-2.5 mm of the side surface of a section of layer body 2 close to the edge of the mother board 1, and then connecting the exposed part of the mother board 1 with the other edge of the mother board 1.
In a third embodiment, the mother board 1 is pre-stamped to form a concave-convex surface (as shown in fig. 3).
In a fourth embodiment, as shown in fig. 9, different from the first embodiment, as shown in the figure, after the protective layer 5 is installed with the reinforcement cage 3, the protective layer 5 is perforated by using a hammer drill, and then the fastener 8 is installed in the hole.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The integrated preparation method of the precast concrete protective layer and the reinforcement cage is characterized by comprising the following steps: the method comprises the following steps:
s1, splicing the steel bars into an appearance matched with the concrete member in a form of a pattern in a fixed connection mode to form a steel bar cage (3);
s2, presetting a mother board (1), pouring concrete on the mother board (1) to form a layer body (2), and combining the mother board (1) and the layer body (2) into a protective layer (5);
s3, fixedly connecting a plurality of fasteners (8) penetrating through the layer body (2) on the layer body (2);
s4, determining the position and the shape of the slot according to the matched component deepening drawing;
s5, a plurality of first through grooves (11) are formed in the layer body (2), the layer body (2) is divided into sections by the first through grooves (11), the number of the divided sections of the layer body (2) is matched with the number of the side faces of the reinforcement cage (3) to be wrapped, a second through groove (12) is formed in one face, opposite to the face, where the groove has been formed in the layer body (2), of the layer body (2), the number of the second through grooves (12) is matched with that of the first through grooves (11), and the position of the second through grooves is opposite to that of the first through grooves (11);
s6, enabling the layer body (2) to be close to the reinforcement cage (3) and fixedly connected, and bending the mother board (1) according to the positions of the second through groove (12) and the first through groove (11) to complete the surrounding of the side face of the reinforcement cage (3);
s7, fixedly connecting two ends of the protective layer (5) of the enclosed motherboard (1);
and S8, enabling the two opposite fasteners (8) to penetrate through a connecting rod (7), and fixedly connecting the connecting rod (7) and the two fasteners (8) to each other.
2. The method for integrally preparing the precast concrete protective layer and the reinforcement cage according to claim 1, wherein the method comprises the following steps: and the substep of S8 is to fixedly connect a connecting piece on one surface of the fastener (8) close to the reinforcement cage (3), and the connecting piece is detachably connected with the reinforcement cage (3).
3. The integrated preparation method of the precast concrete protective layer and the reinforcement cage according to claim 1, characterized in that: the substep of S2 is that the mother board (1) is pre-embedded in the layer body (2).
4. The integrated preparation method of the precast concrete protective layer and the reinforcement cage according to claim 3, characterized in that: the two layer bodies (2) have the same thickness, and the thickness is 15 mm-25 mm.
5. The method for integrally preparing the precast concrete protective layer and the reinforcement cage according to claim 1, wherein the method comprises the following steps: when the protective layer (5) surrounds the reinforcement cage (3) and needs to be folded into an external corner;
the shape of the first through groove (11) is a first shape, and the shape of the second through groove (12) is a second shape.
6. The method for integrally preparing the precast concrete protective layer and the reinforcement cage according to claim 1, wherein the method comprises the following steps: when the protective layer (5) surrounds the reinforcement cage (3) and needs to be folded into an internal corner;
the first through groove (11) is in a second shape, and the second through groove (12) is in a first shape.
7. The method for integrally preparing the precast concrete protective layer and the reinforcement cage according to claim 1, wherein the method comprises the following steps: the layer body (2) is made of fiber concrete.
8. The method for integrally preparing the precast concrete protective layer and the reinforcement cage according to claim 1, wherein the method comprises the following steps: the substep of S1 is that the reinforcement cage (3) is formed by fixedly connecting a plurality of reinforcements after being vertically and transversely stacked to form a latticed reinforcement grid.
9. The integrated preparation method of the precast concrete protective layer and the reinforcement cage according to claim 1, characterized in that: the depths of the second through groove (12) and the first through groove (11) are matched.
10. The method for integrally preparing the precast concrete protective layer and the reinforcement cage according to claim 1, wherein the method comprises the following steps: when protective layer (5) surround the side of steel reinforcement cage (3), can do not do the fluting and handle, protective layer (5) no longer bends, and steel reinforcement cage (3) adopt two at least protective layer (5) concatenation formulas to surround this moment, two adjacent protective layer (5) mutual fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211556013.8A CN115787893A (en) | 2022-12-06 | 2022-12-06 | Integrated preparation method of precast concrete protective layer and reinforcement cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211556013.8A CN115787893A (en) | 2022-12-06 | 2022-12-06 | Integrated preparation method of precast concrete protective layer and reinforcement cage |
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| CN115787893A true CN115787893A (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211556013.8A Pending CN115787893A (en) | 2022-12-06 | 2022-12-06 | Integrated preparation method of precast concrete protective layer and reinforcement cage |
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| CN (1) | CN115787893A (en) |
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- 2022-12-06 CN CN202211556013.8A patent/CN115787893A/en active Pending
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