Single-face overlapped hollow wall structure

Abstract

The utility model discloses a single-face overlapped hollow wall structure which comprises a concrete plate and a non-dismantling formwork which are oppositely arranged, connecting components are embedded in the opposite sides of the concrete plate and the non-dismantling formwork respectively, and the concrete plate and the non-dismantling formwork are connected into a hollow wall through the connecting components. A steel reinforcement cage frame is arranged in the hollow wall body, one side of the steel reinforcement cage frame is embedded in the concrete slab, and the other side of the steel reinforcement cage frame is spaced from the non-dismantling formwork. A connecting component embedded in the concrete slab is a connecting base, and a butt-joint plate is arranged on the side, facing the non-dismantling formwork, of the connecting base and located between the reinforcement cage frame and the non-dismantling formwork. A connecting component embedded in the non-dismantling formwork is a butt joint ring, and one end of the butt joint ring is connected with the butt joint plate. An operation cavity is formed in the inner side of the butt joint ring, the operation cavity penetrates through the non-dismantling formwork, and the connection area of the butt joint ring and the butt joint plate is exposed towards the operation cavity. The hollow wall has the advantages of light weight of a prefabricated part and stable forming structure.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled building engineering, in particular to a single-sided overlapping hollow wall structure. Background Art

[0002] Shear wall structure houses account for a large proportion in my country. Due to the thin walls and complex reinforcement, the promotion of prefabricated walls has been slow. The existing prefabricated shear wall structure forms and construction processes in my country include:

[0003] Prefabricated solid shear wall: The wall stress reinforcement system is cast together with concrete. Its disadvantages are that the mold cost is large and the cost is high; the upper and lower layers of reinforcement need to be connected by sleeve grouting, which has poor technical stability; the weight is large, which makes transportation and hoisting difficult; and it is difficult to pre-embed the wire box and wire pipe.

[0004] Hollow wall forming by flipping and inserting process: the wall reinforcement is cast in the inner and outer leaf walls respectively, that is, the reinforcement system is first inserted into the inner leaf wall concrete, and after forming, it is flipped and inserted into the outer leaf wall concrete to form a hollow wall. Its defects are poor forming accuracy; uncertain insertion depth, easy mold expansion; large equipment investment, high production cost; difficult to make rough surface of the inner cavity, affecting structural safety.

[0005] Hollow wall without dismantling formwork: The inner and outer sides of the wall reinforcement system are wrapped with non-dismantling formwork to form a prefabricated hollow shell wall. Its defects are low forming rigidity, deformation during transportation and hoisting; serious mold expansion during pouring; double-sided formwork occupies a large area, affecting the room rate.

[0006] In view of the above situation, a new prefabricated hollow wall structure is proposed. Summary of the invention

[0007] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a single-sided laminated hollow wall structure, which has the advantages of light weight of prefabricated components and stable molding structure.

[0008] Technical solution: To achieve the above-mentioned purpose, the utility model provides a single-sided overlapping hollow wall structure, including a concrete slab and a disassembly-free formwork arranged opposite to each other, wherein the concrete slab and the disassembly-free formwork are respectively pre-embedded with connecting components on opposite sides thereof, and are connected to form a hollow wall through the connecting components; a steel cage is arranged in the hollow wall, wherein one side of the steel cage is pre-embedded in the concrete slab, and the other side of the steel cage is spaced apart from the disassembly-free formwork; the connecting component pre-embedded in the concrete slab is a connecting seat, and a docking plate is provided on the side of the connecting seat facing the disassembly-free formwork, and the docking plate is located between the steel cage and the disassembly-free formwork; the connecting component pre-embedded in the disassembly-free formwork is a docking ring, and one end of the docking ring is connected to the docking plate; the inner side of the docking ring is a working cavity, and the working cavity passes through the disassembly-free formwork, and the connecting area between the docking ring and the docking plate is exposed toward the working cavity.

[0009] Furthermore, the butt joint plate is connected with supporting ribs, the bottom of the supporting ribs is embedded in the concrete slab, and the top of the supporting ribs supports the butt joint plate, so that the butt joint plate is spaced apart from the concrete slab.

[0010] Furthermore, one end of the docking ring connected to the docking plate extends out of the non-disassembly template, so that the docking plate and the non-disassembly template are spaced apart.

[0011] Furthermore, the butt-joint ring is connected with a tie bar, and the tie bar is entirely pre-buried in the non-disassembly formwork.

[0012] Furthermore, a positioning piece is connected to one end of the docking ring that is connected to the docking plate, and a positioning hole is provided through the docking plate. The positioning piece extends into the positioning hole to locate the connection position between the docking plate and the docking ring.

[0013] Furthermore, the positioning piece includes a straight plate and a hook plate; the straight plate is consistent with the width of the positioning hole. When the docking ring is connected to the docking plate, the straight plate extends into the positioning hole and is positioned against the edge of the positioning hole. The hook plate is hooked onto the side surface of the docking plate that is away from the disassembly-free template.

[0014] Furthermore, the inner side of one end of the docking ring is welded to the docking plate; a first anchor hole is opened on the hook plate, and a second anchor hole is opened on the docking plate. Anchor bolts are inserted into the first anchor hole and the second anchor hole to anchor the hook plate and the docking plate.

[0015] Beneficial effects: The single-sided laminated hollow wall structure of the utility model has the following beneficial effects:

[0016] 1) The hollow wall is composed of a single prefabricated concrete slab and a single non-dismantling formwork. Compared with the hollow wall formed by the flipping and inverting process, the weight is greatly reduced, which is convenient for transportation and installation; compared with the hollow wall without dismantling formwork, the forming rigidity is large, and the connection structure between the concrete slab and the non-dismantling formwork is stable, and it is not easy to cause the pouring formwork expansion phenomenon;

[0017] 2) The concrete slab and the non-disassembly formwork are connected through a docking plate and a docking ring, and the docking ring has a hook-shaped positioning structure on one end facing the docking plate. The hook-shaped positioning structure can not only determine the connection position between the docking ring and the docking plate, but also enable the docking ring and the docking plate to be doubly fixed by welding and anchoring, thereby improving the connection strength between the concrete slab and the non-disassembly formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 This is a schematic diagram of the overall structure of the hollow wall of the utility model;

[0019] Attached Figure 2 It is a schematic diagram of the connection between the docking ring and the docking plate. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] As attached Figures 1 to 2 The single-sided composite hollow wall structure comprises a concrete slab 1 and a non-removal formwork 2 arranged opposite to each other, and connecting components are respectively pre-buried on the opposite sides of the concrete slab 1 and the non-removal formwork 2, and are connected to form a hollow wall 3 through the connecting components. The interior of the hollow wall 3 is a casting cavity, and the side of the concrete slab 1 facing the casting cavity is a rough composite surface. When the concrete is poured for the second time in the casting cavity, the rough composite surface can make the new and old concretes better overlap together to form a complete load-bearing wall.

[0022] Compared with the hollow wall 3 with concrete slabs 1 on both sides, the utility model has a concrete slab 1 on only one side, which greatly reduces the overall weight and facilitates transportation and installation. Compared with the hollow front wall with the non-removable formwork 2 wrapped inside and outside the wall, the wall forming rigidity of the utility model is large and it is not easy to cause mold expansion.

[0023] A steel cage 4 is arranged in the hollow wall 3, one side of the steel cage 4 is embedded in the concrete slab 1, and the other side of the steel cage 4 is spaced apart from the non-removal formwork 2. Figure 1 As shown in , the steel cage 4 is generally a double-layer bidirectional steel mesh, wherein the lower steel mesh is cast in the concrete slab 1.

[0024] The pre-buried connection member in the concrete slab 1 is a connection seat 5, and a docking plate 6 is provided on the side of the connection seat 5 facing the non-disassembly formwork 2. The docking plate 6 is located between the steel cage 4 and the non-disassembly formwork 2, and the docking plate 6, the concrete slab 1 and the non-disassembly formwork 2 are parallel. The pre-buried connection member in the non-disassembly formwork 2 is a docking ring 7, and one end of the docking ring 7 is connected to the docking plate 6. The inner side of the docking ring 7 is an operating cavity 8, and the operating cavity 8 passes through the non-disassembly formwork 2. The connecting area between the docking ring 7 and the docking plate 6 is exposed to the operating cavity 8, and the docking ring 7 and the docking plate 6 can be connected and processed through the operating cavity 8, for example, the docking ring 7 and the docking plate 6 are welded together.

[0025] The butt joint plate 6 is connected with supporting ribs 9, which are arched. The bottom of the supporting ribs 9 is embedded in the concrete slab 1, and the top of the supporting ribs 9 supports the butt joint plate 6, so that the butt joint plate 6 is spaced apart from the concrete slab 1.

[0026] One end of the docking ring 7 connected to the docking plate 6 extends out of the non-disassembly formwork 2, so that the docking plate 6 is spaced apart from the non-disassembly formwork 2. By controlling the distance between the docking plate 6 and the concrete slab 1, and the height of the docking ring 7 extending out of the non-disassembly formwork 2, the distance between the concrete slab 1 and the non-disassembly formwork 2 can be accurately controlled, thereby controlling the thickness of the hollow wall 3. The non-disassembly formwork 2 is made of high-strength materials, such as high-performance concrete, epoxy resin, etc., and a reinforcing steel mesh 16 is arranged in the non-disassembly formwork 2 to enhance the strength of the non-disassembly formwork 2. A tie bar 10 is connected to the waist of the docking ring 7, and the tie bar 10 is pre-embedded in the non-disassembly formwork 2 as a whole. The non-disassembly formwork 2 is cast and formed, and the height of the docking ring 7 is higher than the thickness of the non-disassembly formwork 2, so that the bottom of the docking ring 7 is pre-embedded in the non-disassembly formwork 2.

[0027] The end of the docking ring 7 connected to the docking plate 6 is connected with a positioning piece 11, and the docking plate 6 is provided with a positioning hole 12, and the positioning piece 11 extends into the positioning hole 12 to locate the connection position of the docking plate 6 and the docking ring 7. There are multiple sets of relative docking plates 6 and docking rings 7 between the concrete slab 1 and the non-disassembly formwork 2. Through the coordinated positioning of the positioning piece 11 and the positioning hole 12, the connection position of the docking plate 6 and the docking ring 7 can be accurately controlled, so that the forming size of the hollow wall 3 is more accurate.

[0028] As attached Figure 2 As shown in , the positioning member 11 includes a straight plate 13 and a hook plate 14. The width of the straight plate 13 is consistent with that of the positioning hole 12. When the docking ring 7 is connected to the docking plate 6, the straight plate 13 extends into the positioning hole 12 and abuts against the edge of the positioning hole 12 to position the docking ring 7 and the docking plate 6. The hook plate 14 is arranged at the front end of the straight plate 13. After the straight plate 13 extends into the positioning hole 12, the hook plate 14 is hooked on the side surface of the docking plate 6 that is back to the free-disassembly template 2, and the hook plate 14 abuts against the side surface of the docking plate 6 that is back to the free-disassembly template 2. Due to the existence of the hook plate 14, the docking plate 6 and the docking ring 7 have stronger tensile strength and are not easy to separate from each other.

[0029] The inner side of one end of the docking ring 7 is welded to the docking plate 6. A first anchor hole is provided on the hook plate 14, and a second anchor hole is provided on the docking plate 6. The first anchor hole and the second anchor hole can be pre-opened, or can be opened after the docking plate 6 and the docking ring 7 are connected and positioned. The second anchor hole on the docking plate 6 is offset from the position of the support rib 9. The anchor bolt 15 is inserted into the first anchor hole and the second anchor hole to anchor the hook plate 14 to the docking plate 6. The utility model adopts a hook plate 14 between the docking plate 6 and the docking ring 7. Due to the presence of the hook plate 14, the docking plate 6 can be exposed to the working cavity 8 for welding, and the hook plate 14 can be anchored to the docking plate 6. Since welding and anchoring are used for double fixation, the connection strength between the docking plate 6 and the docking ring 7 is higher.

[0030] The manufacturing process of the single-sided laminated hollow wall structure includes the following steps:

[0031] Step S1: respectively manufacturing a concrete slab 1 and a non-removable formwork 2;

[0032] When making the concrete slab 1, first prepare the mold, then place the connection seat 5, then lay the steel cage 4, then install the embedded parts such as the wire box and wire pipe, and then pour the concrete to form it. Before the concrete solidifies, the overlapping surface is roughened, and finally the concrete slab 1 is cured and formed;

[0033] When making the non-disassembly formwork 2, prepare the mold, install the docking ring 7 at the corresponding position, then lay the reinforced steel mesh 16, pour the non-disassembly formwork 2 mixture, and demould it after curing and forming;

[0034] Step S2: Lay the non-removal formwork 2 on the concrete slab 1, connect the docking ring 7 with the docking plate 6, and insert the straight plate 13 and the hook plate 14 into the positioning hole 12, then move the non-removal formwork 2, make the straight plate 13 and the edge of the positioning hole 12 close to each other, and make the hook plate 14 hooked on the side of the docking plate 6 facing away from the non-removal formwork 2, if there are anchor holes pre-opened, then the first anchor hole on the hook plate 14 is opposite to the second anchor hole on the docking plate 6;

[0035] Step S3: insert the welding tool from the working cavity 8, and perform welding along the inner port edge of the docking ring 7 to weld the docking plate 6 and the docking ring 7 together;

[0036] Step S4: inserting the anchor bolt 15 into the first anchor bolt 15 hole and the second anchor bolt 15 hole to anchor the hook plate 14 to the docking plate 6;

[0037] Step S5: seal the working cavity 8 in the docking ring 7, perform surface repair, and obtain the hollow wall 3; when used, transport the hollow wall 3 to the construction site, assemble multiple hollow walls 3 and arrange the wall reinforcement system, and then pour concrete in the hollow wall 3 for the second time to form a complete load-bearing wall.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A single-sided composite hollow wall structure, Features: It comprises a concrete slab (1) and a non-removal formwork (2) arranged opposite to each other, wherein connecting components are pre-buried on opposite sides of the concrete slab (1) and the non-removal formwork (2), and the connecting components are connected to form a hollow wall (3); A steel cage (4) is arranged in the hollow wall (3), one side of the steel cage (4) is embedded in the concrete slab (1), and the other side of the steel cage (4) is spaced apart from the non-disassembly formwork (2); The pre-buried connection member in the concrete slab (1) is a connection seat (5), and a docking plate (6) is provided on the side of the connection seat (5) facing the non-disassembly formwork (2), and the docking plate (6) is located between the steel cage (4) and the non-disassembly formwork (2); the pre-buried connection member in the non-disassembly formwork (2) is a docking ring (7), and one end of the docking ring (7) is connected to the docking plate (6); the inner side of the docking ring (7) is an operating cavity (8), and the operating cavity (8) passes through the non-disassembly formwork (2), and the connecting area between the docking ring (7) and the docking plate (6) is exposed toward the operating cavity (8).

2. A single-sided composite hollow wall structure according to claim 1, Features: The butt joint plate (6) is connected to a supporting rib (9), the bottom of the supporting rib (9) is pre-buried in the concrete slab (1), and the top of the supporting rib (9) supports the butt joint plate (6), so that the butt joint plate (6) and the concrete slab (1) are spaced apart.

3. A single-sided composite hollow wall structure according to claim 1, Features: One end of the docking ring (7) connected to the docking plate (6) extends out of the non-disassembly template (2), so that the docking plate (6) and the non-disassembly template (2) are spaced apart.

4. A single-sided composite hollow wall structure according to claim 3, Features: The butt joint ring (7) is connected with a tie bar (10), and the tie bar (10) is entirely pre-buried in the non-disassembly formwork (2).

5. A single-sided composite hollow wall structure according to claim 3, Features: A positioning piece (11) is connected to one end of the docking ring (7) that is connected to the docking plate (6); a positioning hole (12) is provided through the docking plate (6); the positioning piece (11) extends into the positioning hole (12) to locate the connection position between the docking plate (6) and the docking ring (7).

6. A single-sided composite hollow wall structure according to claim 5, Features: The positioning member (11) comprises a straight plate (13) and a hook plate (14); the width of the straight plate (13) is consistent with that of the positioning hole (12); when the docking ring (7) is connected to the docking plate (6), the straight plate (13) extends into the positioning hole (12) and is positioned against the edge of the positioning hole (12); the hook plate (14) is hooked on a side plate surface of the docking plate (6) that is opposite to the disassembly-free template (2).

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