CN216948932U - Prefabricated concrete dismantling-free hollow wall with built-in back edges - Google Patents

Prefabricated concrete dismantling-free hollow wall with built-in back edges Download PDF

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CN216948932U
CN216948932U CN202220013211.9U CN202220013211U CN216948932U CN 216948932 U CN216948932 U CN 216948932U CN 202220013211 U CN202220013211 U CN 202220013211U CN 216948932 U CN216948932 U CN 216948932U
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wall
dismantling
formwork
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郑永春
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Abstract

The utility model relates to the technical field of assembly type building engineering, in particular to a prefabricated concrete form-removal-free hollow wall with a built-in back edge. The prefabricated concrete mold-dismantling-free hollow wall with the built-in back edge comprises a prefabricated concrete single-sided wallboard, a steel reinforcement framework, a disassembly-free mold built-in back edge and a disassembly-free mold plate, wherein the prefabricated concrete single-sided wallboard and the disassembly-free mold plate are arranged in parallel, a wall cavity is formed in the middle of the prefabricated concrete single-sided wallboard and the disassembly-free mold plate, the steel reinforcement framework is arranged between the prefabricated concrete single-sided wallboard and the disassembly-free mold plate, one side of the steel reinforcement framework is embedded in the prefabricated concrete single-sided wallboard, and the disassembly-free mold built-in back edge is arranged in the wall cavity and is connected with the steel reinforcement framework and the disassembly-free mold plate. The back edges are arranged in the wall body, the removal-free templates are fixed on the back edges and are poured together with wall body concrete, so that the concrete is not easy to crack and the phenomenon of mold expansion is avoided during pouring, and after the wall body is formed, the integral precision of the wall body is high, so that the integral building can better meet the requirement of attractiveness.

Description

Prefabricated concrete mold-dismantling-free hollow wall with built-in back edges
Technical Field
The utility model relates to the technical field of assembly type building engineering, in particular to a prefabricated concrete form-removal-free hollow wall with a built-in back edge.
Background
The assembly type building is a basic component forming the building, is prefabricated in a factory and then is transported to a construction site for assembly, and is one of building industrialization technologies vigorously promoted in recent years in China. The prefabricated hollow wall body is convenient for the connection of the stressed steel bars up and down, left and right due to the continuous cavity, so that the prefabricated hollow wall body is more and more popular in the industry in the field of assembly type constructional engineering. The form-dismantling-free concrete pouring formwork system is a novel concrete pouring formwork system, and the formwork system is permanently poured together with concrete after formwork erection and is not dismantled. The mould-dismounting-free is gradually accepted by the industry due to low cost and high efficiency.
The existing precast concrete hollow wall structure has the defects that the formed hollow wall is inverted and inserted in a turnover mode, the formed hollow wall is assembled and the single-side overlapped mode-dismantling-free hollow wall is assembled, and the formed hollow wall is inverted and inserted in a turnover mode: special large-scale equipment is needed, 180-degree turning is carried out, namely, the formed A-side wall is stably fixed, and then the A-side wall is integrally turned for 180-degree turning and is reversely buckled in the unset B-side wall concrete. The tie bar system is complex, and the tie bar does not bear structural stress in the wall body, but only meets the process requirements. The overturning inverted inserting process requires that the tie bars must be arranged densely, otherwise, the forming precision is difficult to ensure, and pouring expansion is easy to cause; meanwhile, the cavity has more tie bars, which is an ineffective bar arrangement and only meets the process requirements, and the material waste is serious. The aggregate such as sand and stone in the concrete influences the insertion depth, so the forming precision is difficult to control; fault tolerance cannot be realized, and once inverted insertion molding is carried out, if inaccurate reinforcement arrangement and incorrect pre-buried pipeline position are found, correction is difficult; secondary maintenance is needed, energy consumption is large, and efficiency is low. The assembly forming hollow wall and the single-side overlapped mould-removal-free hollow wall both need special equipment, are assembled and formed, and additionally need an additional back edge; the processes of forming, assembling bolt groups, assembling back edges, disassembling bolt groups and the like are required, so that the process is complicated, and the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention aims to provide a demolition-free hollow wall with built-in back-arris precast concrete, so as to overcome the disadvantages of the existing structural style.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a prefabricated concrete of built-in back of body stupefied exempts from to tear open mould hollow wall, includes prefabricated concrete single face wallboard, framework of steel reinforcement, exempts from to tear open mould built-in back of the body stupefied and exempt from to tear open the template, wherein prefabricated concrete single face wallboard and exempt from to tear open template parallel arrangement just the centre form the wall body cavity, framework of steel reinforcement sets up between prefabricated concrete single face wallboard and exempt from to tear open the template, and framework of steel reinforcement's one side is pre-buried in prefabricated concrete single face wallboard, it sets up in the wall body cavity to exempt from to tear open mould built-in back of the body stupefied, and with framework of steel reinforcement and exempt from to tear open the template and be connected.
The mould-disassembly-free built-in back arris is multiple and is arranged in parallel, and each mould-disassembly-free built-in back arris is arranged along the horizontal direction.
Two adjacent exempt from to tear open and be equipped with built-in inferior back of the body stupefied between the mould built-in back of the body stupefied exempting from to tear open, the width of built-in inferior back of the body stupefied is less than the width of the mould built-in back of the body stupefied exempting from to tear open.
The non-dismantling mold built-in back edge and the built-in secondary back edge are connected with the non-dismantling mold through self-tapping anchor bolts.
The built-in back of the body of exempting from to tear open mould is stupefied for the open rectangular shape frid in one side, and uncovered side orientation is kept away from exempt from to tear open the direction of template.
The steel bar framework comprises a wall body A surface stress steel bar net, a wall body B surface stress steel bar net and a plurality of tie bars connected between the wall body A surface stress steel bar net and the wall body B surface stress steel bar net, wherein one end of the wall body A surface stress steel bar net, which is connected with the wall body A surface stress steel bar net, and the tie bars are embedded in the prefabricated concrete single-face wall board, and the other end of the tie bars and the wall body B surface stress steel bar net are accommodated in the wall body cavity.
The wall body B surface stressed reinforcing steel bar mesh is positioned between the non-dismantling mold built-in back ridge and the non-dismantling mold plate, and a reinforcing steel bar protective layer gasket is arranged between the wall body B surface stressed reinforcing steel bar mesh and the inner surface of the non-dismantling mold plate; and the non-dismantling in-mold built-in back edge is welded or bound and fixed with the B-surface stress reinforcing mesh of the wall body.
The A surface stress reinforcing mesh of the wall body and the B surface stress reinforcing mesh of the wall body are parallel to each other.
Utility model's advantage and beneficial effect are: the utility model meets the evaluation standard of the national existing fabricated building, has less equipment investment and quick response; the process is simple, the work efficiency is greatly improved, and the construction cost is greatly reduced.
The back edges are arranged in the wall body, the removal-free templates are fixed on the back edges and are poured together with wall body concrete, so that the concrete is not easy to crack and the phenomenon of mold expansion is avoided during pouring, and after the wall body is formed, the integral precision of the wall body is high, so that the integral building can better meet the requirement of attractiveness;
the steel reinforcement framework is of an integral structure, so that the stressed steel reinforcement of the wall body forms a stable integral framework, and the steel reinforcement framework plays a role in pulling when concrete is poured into the cavity, and prevents a pouring expansion die.
Drawings
FIG. 1 is a schematic structural diagram of a prefabricated concrete form-removal-free hollow wall with a built-in back edge of the utility model;
in the figure: the prefabricated concrete single-face wallboard comprises a prefabricated concrete single-face wallboard body 1, a wall body A-face stress reinforcing mesh body 2, a wall body B-face stress reinforcing mesh body 3, tie reinforcing steel bars 4, reinforcing steel bar protective layer gaskets 5, a disassembly-free in-mold back ridge 6, a built-in secondary back ridge 7, a disassembly-free template 8, self-tapping anchor bolts 9 and a wall body cavity 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an embodiment of the present invention provides a prefabricated concrete mold-dismantling-free hollow wall with a built-in back edge, which includes a prefabricated concrete single-sided wall panel 1, a steel reinforcement framework, a dismantling-free mold built-in back edge 6 and a dismantling-free mold 8, wherein the prefabricated concrete single-sided wall panel 1 and the dismantling-free mold 8 are arranged in parallel, a wall cavity 10 is formed in the middle of the prefabricated concrete single-sided wall panel 1 and the dismantling-free mold 8, the steel reinforcement framework is arranged between the prefabricated concrete single-sided wall panel 1 and the dismantling-free mold 8, one side of the steel reinforcement framework is embedded in the prefabricated concrete single-sided wall panel 1, and the dismantling-free mold built-in back edge 6 is arranged in the wall cavity 10 and connected with the steel reinforcement framework and the dismantling-free mold 8.
In the embodiment of the utility model, a plurality of non-dismantling mold internal back ridges 6 are arranged in parallel at intervals, and each non-dismantling mold internal back ridge 6 is arranged along the horizontal direction.
Further, a built-in secondary back ridge 7 is arranged between every two adjacent non-dismantling mold built-in back ridges 6, and the width of the built-in secondary back ridge 7 is smaller than that of the non-dismantling mold built-in back ridge 6. The non-dismantling mould built-in back edge 6 and the built-in secondary back edge 7 are connected with a non-dismantling mould 8 through self-tapping anchor bolts 9.
Specifically, the non-dismantling mold built-in back edge 6 is a long strip-shaped groove plate with one side open, and the open side faces the direction far away from the non-dismantling mold plate 8.
In the embodiment of the utility model, the steel bar framework comprises a wall A surface stress steel bar mesh 2, a wall B surface stress steel bar mesh 3 and a plurality of tie bars 4 connected between the wall A surface stress steel bar mesh 2 and the wall B surface stress steel bar mesh 3 in a welding mode, wherein one end of the wall A surface stress steel bar mesh 2, the tie bars 4 and the wall A surface stress steel bar mesh 2, which are connected, is embedded in the prefabricated concrete single-sided wall plate 1, and the other end of the tie bars 4 and the wall B surface stress steel bar mesh 3 are accommodated in a wall cavity 10.
Further, the wall A surface stressed reinforcing mesh 2 and the wall B surface stressed reinforcing mesh 3 are parallel to each other, the wall B surface stressed reinforcing mesh 3 is positioned between the non-dismantling mold built-in back ridge 6 and the non-dismantling mold plate 8, and a reinforcing steel bar protective layer gasket 5 is arranged between the wall B surface stressed reinforcing mesh 3 and the inner surface of the non-dismantling mold plate 8; the non-dismantling mould built-in back ridge 6 is welded or bound and fixed with the B-surface stress reinforcing mesh 3 of the wall body.
In this embodiment, the precast concrete single-sided wall panel 1 is prepared by a conventional process, and the stressed reinforcing mesh 2 and the tie bars 4 are placed on the a-side of the wall body to form a stable prefabricated wall panel with distributed ribs. The A-surface stressed reinforcing mesh 2 of the wall body is poured into the precast concrete single-sided wallboard 1 by adopting the traditional process. The B surface stress reinforcing mesh of the wall body adopts the traditional process and is firmly connected with the A surface stress reinforcing mesh 2 of the wall body through the tie bars 4 to form an integral stress reinforcing cage. The tie bars 4 enable the wall stressed steel bars to form a stable integral framework, and when concrete is poured in the wall cavity 10, the tie bars 4 play a tie role to prevent the pouring of the expansion die. The size and the interval of the tie bars 4 are set according to the design requirements.
The built-in back ridges are permanently poured together with the concrete of the wall body, and the main function is to fix the non-dismantling formwork 8, so that the formwork expansion phenomenon is avoided during the concrete pouring. The non-dismantling mold built-in back edge 6 is made of hard materials such as steel and can lock the self-tapping anchor bolt 9. The non-dismantling in-mold back ridge 6 is arranged on the inner side of the wall body B surface reinforcing mesh 3 and is firmly welded or bound with the wall body B surface reinforcing mesh 3. The section size and the arrangement distance of the non-dismantling mold built-in back ridges 6 are determined by design. Because the disassembly-free in-mold back ridge 6 is arranged on the inner side of the wall body B-side reinforcing mesh 3, the stress distance is very small, so the disassembly-free in-mold back ridge 6 is very small in specification, and is more economical and practical. If the arrangement distance of the non-dismantling mold built-in back ridge 6 is too large or the individual positions of the corners are not easy to arrange, the built-in secondary back ridge 7 is additionally arranged, and the built-in secondary back ridge 7 can be arranged in any direction. The non-dismantling formwork 8 plays a role in restraining when concrete is poured in the wall cavity 10, is generally a cement-based product and is permanently poured together with the concrete. The self-tapping anchor bolt 9 is traditional equipment and is used for connecting and locking the non-dismantling template 8, the non-dismantling template built-in back rib 6 and the built-in secondary back rib 7. The wall cavity 10 is a reserved cavity for in-situ concrete pouring, and the upper, lower, left and right connecting steel bars are required to be arranged in the wall cavity 10 before pouring according to design requirements.
On the basis of the above embodiment, another embodiment of the present invention provides a construction process of a prefabricated concrete demolition-free hollow wall with built-in back ridges as in any of the above embodiments, the construction process including the following steps:
1) preparing a steel bar framework: the A surface stress reinforcing mesh 2 and the B surface stress reinforcing mesh 3 of the wall body are connected into a whole through tie bars 4 and can be welded and bound;
2) preparing a precast concrete single-sided wallboard 1, and pre-embedding a wall A-side stress reinforcing mesh 2 in the precast concrete single-sided wallboard 1; specifically, a side die is supported on a die table according to the size of the wallboard, a steel bar framework is placed, concrete is poured, and the die table is maintained and molded;
3) mounting a disassembly-free in-mold back ridge 6, wherein the disassembly-free in-mold back ridge 6 is tightly attached to the inner side surface of the wall body B surface stress reinforcing mesh 3 and is fixedly connected with the wall body B surface stress reinforcing mesh 3;
specifically, the non-dismantling mold internal back edges 6 are sequentially arranged at intervals from bottom to top, an internal secondary back edge 7 is arranged between every two adjacent non-dismantling mold internal back edges 6, and the internal secondary back edge 7 passes through a self-tapping anchor bolt 9 and a non-dismantling template 8;
according to the design requirement, perfecting the reinforcing steel bar system: comprises the connection of upper, lower, left and right reinforcing steel bars;
4) a reinforcing steel bar protective layer gasket 5 is arranged on the outer side of the stressed reinforcing steel bar mesh 3 on the B surface of the wall body;
5) the non-dismantling template 8 is attached to the reinforcing steel bar protective layer gasket 5 and is connected with the non-dismantling template 8 and the non-dismantling in-mold back rib 6 through the self-tapping anchor bolt 9;
6) pouring concrete in a wall cavity 10 between the precast concrete single-sided wallboard 1 and the non-dismantling formwork 8;
7) and (5) curing and forming.
Specifically, the non-dismantling formwork 8 is a purchased finished product, such as a cement fiberboard, a calcium silicate board and the like, and is provided with a spacing cutting plate according to the non-dismantling formwork built-in back edge 6. Nailing installation in proper order exempts from to tear open template 8, adopts traditional self tapping crab-bolt 9 quick locking exempt from to tear open the mould built-in back of the body stupefied 6 and exempt from to tear open template 8. And (3) repairing nails at corners, local parts or other parts needing to be reinforced, temporarily installing the built-in secondary back ridges 7 and repairing and striking anchoring nails. If the surface of the wall body has external hanging decoration requirements, anchoring parts, such as dry hanging stone anchoring parts, insulation board anchoring parts and the like, can be additionally arranged in advance before concrete is poured in the wall body cavity 10. The pre-anchoring is safer and more convenient than the post-anchoring.
The utility model provides a precast concrete hollow wall with simple structure, convenience and flexibility, which adopts a mode of internally arranging a back edge, wherein the back edge is used for fixing a non-dismantling template and is poured together with wall concrete, so that the concrete is not easy to crack and the phenomenon of mold expansion is avoided during pouring; after the wall is formed, the integral precision of the wall is high, so that the integral building can better meet the requirement of beauty; meanwhile, the mode of the back edge is built in, so that the processes of assembling, installing bolt groups, installing the back edge, disassembling the bolt groups and the like can be saved, the process is greatly simplified, the production efficiency is improved, and the production cost is reduced. The steel reinforcement framework is of an integral structure, so that the stressed steel reinforcement of the wall body forms a stable integral framework, and the steel reinforcement framework plays a role in pulling when concrete is poured into the cavity, and prevents a pouring expansion die.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a built-in stupefied precast concrete of back of body exempts from to tear open mould hollow wall, a serial communication port, including precast concrete single face wallboard (1), framework of steel reinforcement, exempt from to tear open mould built-in back of body stupefied (6) and exempt from to tear open mould board (8), wherein precast concrete single face wallboard (1) and exempt from to tear open mould board (8) parallel arrangement and middle wall body cavity (10) that forms, framework of steel reinforcement sets up between precast concrete single face wallboard (1) and exempt from to tear open mould board (8), and one side pre-buried in precast concrete single face wallboard (1) of framework of steel reinforcement, it sets up in wall body cavity (10) to exempt from to tear open mould built-in back of body stupefied (6), and with framework of steel reinforcement and exempt from to tear open mould board (8) and be connected.
2. The formwork-dismantling-free hollow wall of precast concrete with built-in back ridges according to claim 1, characterized in that the formwork-dismantling-free built-in back ridges (6) are plural, the plural formwork-dismantling-free built-in back ridges (6) are arranged in parallel, and each formwork-dismantling-free built-in back ridge (6) is arranged along a horizontal direction.
3. The formwork-dismantling-free hollow wall of the prefabricated concrete with the built-in back ridges as claimed in claim 2, wherein the built-in secondary back ridges (7) are arranged between two adjacent formwork-dismantling-free built-in back ridges (6), and the width of the built-in secondary back ridges (7) is smaller than that of the formwork-dismantling-free built-in back ridges (6).
4. The demolition-free precast concrete hollow wall with built-in back edges according to claim 3, characterized in that the demolition-free built-in back edges (6) and the built-in secondary back edges (7) are connected with the demolition-free formwork (8) through self-tapping anchor bolts (9).
5. The formwork-free hollow wall of the built-in back arris precast concrete of any one of claims 1 to 4, wherein the formwork-free built-in back arris (6) is an elongated groove plate with one side open, and the open side faces away from the formwork-free (8).
6. The formwork-dismantling-free hollow wall with the built-in back-corrugated precast concrete is characterized in that the steel bar framework comprises a wall A-surface stress steel bar net (2), a wall B-surface stress steel bar net (3) and a plurality of tie bars (4) connected between the wall A-surface stress steel bar net (2) and the wall B-surface stress steel bar net (3), wherein the wall A-surface stress steel bar net (2) and one ends of the tie bars (4) connected with the wall A-surface stress steel bar net (2) are embedded in the precast concrete single-sided wallboard (1), and the other ends of the tie bars (4) and the wall B-surface stress steel bar net (3) are accommodated in the wall cavity (10).
7. The prefabricated concrete formwork-dismantling-free hollow wall with the built-in back edges as claimed in claim 6, wherein the B-surface stress reinforcing mesh (3) of the wall body is positioned between the dismantling-free formwork built-in back edges (6) and the dismantling-free formwork (8), and a reinforcing steel bar protective layer gasket (5) is arranged between the B-surface stress reinforcing mesh (3) of the wall body and the inner surface of the dismantling-free formwork (8); and the non-dismantling in-mold built-in back edge (6) is welded or bound and fixed with the B-surface stress reinforcing mesh (3) of the wall body.
8. The formwork-free hollow wall with built-in back ridges as claimed in claim 7, wherein the A-side stress reinforcing mesh (2) and the B-side stress reinforcing mesh (3) of the wall body are parallel to each other.
CN202220013211.9U 2022-01-05 2022-01-05 Prefabricated concrete dismantling-free hollow wall with built-in back edges Active CN216948932U (en)

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CN202220013211.9U CN216948932U (en) 2022-01-05 2022-01-05 Prefabricated concrete dismantling-free hollow wall with built-in back edges

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Application Number Priority Date Filing Date Title
CN202220013211.9U CN216948932U (en) 2022-01-05 2022-01-05 Prefabricated concrete dismantling-free hollow wall with built-in back edges

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CN216948932U true CN216948932U (en) 2022-07-12

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