Fabricated double-faced laminated shear wall

Abstract

The utility model discloses an assembly type double-faced laminated shear wall which comprises two prefabricated wall bodies arranged in parallel and fixing pieces, each prefabricated wall body comprises a concrete wall plate containing a steel reinforcement framework and a plate-type connecting piece, and each plate-type connecting piece is in a sawtooth shape and comprises a fixing part and connecting plates arranged on the fixing part at intervals. The fixing parts and part of the connecting plates are wrapped by the concrete wall plate, the other part of the connecting plates are exposed out of one face of the concrete wall plate and are arranged at intervals, the exposed faces of the connecting plates of the two prefabricated wall bodies are oppositely arranged, and the connecting plate on one prefabricated wall body is overlapped with the connecting plate on the other prefabricated wall body. The fixing pieces are fixedly connected with the connecting plates of the overlapped parts to complete fixed connection of the two prefabricated wall bodies. The assembly type double-sided laminated shear wall is simple in manufacturing process and high in positioning accuracy, and production and manufacturing time and economic cost are reduced.

Description

Technical Field

[0001] The utility model relates to the field of assembled buildings, in particular to an assembled double-sided composite shear wall. Background Art

[0002] The development of prefabricated buildings is an important measure to promote the deep integration of the construction industry and industrialization and accelerate the transformation and upgrading of the construction industry. At present, most projects use horizontal prefabricated components (floor stairs), high-precision formwork, and formed steel bars to meet the requirements of the "Prefabricated Evaluation Standards". However, prefabricated buildings in the true sense should include prefabricated vertical components and horizontal components. By adopting prefabricated cavity system shear walls, on the basis of ensuring structural safety and construction feasibility, it breaks through the application bottleneck of "prefabricated vertical components" that has been plaguing the construction industry, which is of great significance to the further promotion of prefabricated buildings.

[0003] Some prefabricated cavity shear walls disclosed at present have very high requirements for automated machinery in their production and manufacturing process. First, the casting and maintenance of the prefabricated wall panels on one side need to be completed, and then the 180° flip machine is used to flip and position them, and finally the concrete of the prefabricated wall panels on the other side is poured. The prefabricated wall panels on both sides are connected by truss steel bars. The prefabricated wall panels on both sides cannot be poured at the same time, which makes the production process complicated. In addition, it is necessary to use precision machinery to complete the positioning and control the thickness of the prefabricated wall panels on both sides. Therefore, there are the following problems in the production of prefabricated cavity shear walls: 1. The 180° flip machine can realize the platform flipping, but the area and production space occupied by the equipment are large; 2. The machinery used to position and control the thickness of the prefabricated wall panels has very high precision requirements. The better machinery usually needs to be imported from abroad and is expensive to purchase; 3. The above-mentioned production machinery needs frequent maintenance and high energy consumption. These problems lead to the high cost of producing such prefabricated cavity shear walls. The high cost leads to fewer manufacturers and expensive factory prices, which is not conducive to the development and promotion of prefabricated buildings. Utility Model Content

[0004] In view of the problems of complex production process and high production cost of the above-mentioned assembled prefabricated composite shear wall, the utility model proposes an assembled double-sided composite shear wall, in which a plate-type connecting piece is arranged on the prefabricated wall, and the two prefabricated walls are connected and formed into a double-sided composite shear wall by stacking and fixing the plate-type connecting pieces of two different prefabricated walls, thereby simplifying the production process and reducing the time and economic cost required for wall production.

[0005] The utility model is realized by the following technical solutions:

[0006] An assembled double-sided composite shear wall includes two parallel prefabricated walls and fixings, wherein the prefabricated walls include concrete wall panels containing a steel skeleton and plate-type connectors, wherein the plate-type connectors are serrated and include a fixing portion and connecting plates spaced apart on the fixing portion, wherein the fixing portion and a portion of the connecting plates are wrapped by the concrete wall panels, and another portion of the connecting plates are exposed from one side of the concrete wall panels and are spaced apart; the exposed sides of the connecting plates of the two prefabricated walls are arranged relative to each other, wherein the connecting plate on one prefabricated wall partially or completely overlaps the connecting plate on the other prefabricated wall, and the fixings fix the overlapping connecting plates to complete the fixed connection of the two prefabricated walls. The manufacturing process for producing the assembled double-sided composite shear wall of the utility model is as follows:

[0007] S1. Processing a plate-type connector, placing the plate-type connector in a mold, wherein the plate-type connector is serrated, and the serrated connecting plate faces upward;

[0008] S2, arranging a steel skeleton on the plate-type connector so that the steel bars of the steel skeleton are placed in the gaps between adjacent connecting plates;

[0009] S3, pouring concrete into the mold, during the pouring process, ensure that the poured concrete wraps the steel skeleton, the fixing part and part of the connecting plate, and the remaining connecting plate remains outside the concrete;

[0010] S4, hoisting the completed prefabricated wall to another prefabricated wall and keeping the two prefabricated walls parallel, so that the exposed sides of the plate-type connecting members of the two prefabricated walls face each other and ensure that the corresponding connecting plates partially or completely overlap;

[0011] S5. Fix the connection plate by means of a fixing piece to achieve connection and fixation of two prefabricated walls, thereby forming an assembled double-sided composite shear wall of the utility model.

[0012] In a further improvement of the utility model, the plate-type connector also includes a support portion fixedly connected to the fixing portion, the support portion is wrapped by the concrete wallboard and is separated from the connection plate by the fixing portion. When the prefabricated wall is cast, in order to ensure that the fixing portion of the plate-type connector can be completely wrapped by concrete, a support portion is provided on the fixing portion, the support portion contacts the bottom surface of the mold, and the fixing portion is lifted to a certain height, thereby ensuring that after the concrete is cast, the fixing portion will not be exposed on the other side of the prefabricated wall but will be completely immersed in the concrete.

[0013] As a further improvement to the utility model, the cross-sectional shape of the fixing portion is "J" shaped. The "J" shaped fixing portion can effectively prevent the plate-type connector from falling out after being wrapped by concrete, thereby improving the connection strength between the plate-type connector and the concrete wallboard.

[0014] As a further improvement to the utility model, the cross-sectional shape of the support portion is a "П" shape. The "П"-shaped structure can allow the plate-type connector to be vertically placed in the mold and remain stable.

[0015] A further improvement of the utility model is that the plate-type connector includes a first plate-type connector and a second plate-type connector, the fixing member is a threaded column and a nut, the threaded column is fixedly arranged on the connecting plate of the first plate-type connector, the connecting plate of the second plate-type connector is provided with a waist-shaped hole, the two prefabricated walls arrange the exposed sides of the plate-type connectors relative to each other, so that the threaded column on the first plate-type connector passes through the waist-shaped hole of the second plate-type connector on the other prefabricated wall, and the nut connects the threaded column to complete the fixed connection of the two prefabricated walls. In step S1, the following steps are specifically performed:

[0016] S101, processing the first plate-type connector and the second plate-type connector, fixing the threaded column on the first plate-type connector, processing a waist-shaped hole on the second plate-type connector, placing the processed first plate-type connector and the second plate-type connector in a mold and keeping the serrated shape facing upward.

[0017] In step S4, the following operations are performed:

[0018] S401, hoisting the completed prefabricated wall to another prefabricated wall and keeping the two prefabricated walls parallel, so that the exposed sides of the plate-type connectors of the two prefabricated walls face each other, and the threaded column on the connecting plate of the first plate-type connector of one of the prefabricated walls passes through the waist-shaped hole of the connecting plate of the second plate-type connector of the other wall.

[0019] In a further improvement of the present invention, the connecting plate of the plate-type connecting member exposed from one side of the concrete wall panel is provided with a through hole, and when the plate-type connecting members on two prefabricated wall bodies partially or completely overlap, the through holes overlap, and the fixing member passes through the through holes and fixes the overlapping plate-type connecting members. In step S1, the following steps are specifically performed:

[0020] S102, processing a through hole on the plate-type connector, placing the processed plate-type connector in a mold and keeping the serrated shape facing upward.

[0021] In step S4, the following steps are specifically performed:

[0022] S402, hoisting the completed prefabricated wall to another prefabricated wall and keeping the two prefabricated walls parallel, so that the exposed sides of the plate-type connecting members of the two prefabricated walls face each other, and the through holes overlap when the connecting plates on the two prefabricated walls partially or completely overlap.

[0023] In a further improvement of the utility model, the fixing member is a bolt and a nut, and the bolt passes through the overlapping through holes and is fixed by the nut to complete the fixed connection of the overlapping plate-type connecting members. The bolt and nut can quickly complete the connection and fixation of two plate-type connecting members.

[0024] As a further improvement to the utility model, the connecting piece is a rivet, which passes through the overlapping through holes and is fixed to complete the fixed connection of the overlapping plate-type connecting pieces. The connection and fixation of two plate-type connecting pieces can be quickly completed by assembling the rivets.

[0025] In a further improvement of the present invention, the prefabricated wall further comprises an insulation layer, and the insulation layer is fixed to the surface of the prefabricated wall by fasteners. When the assembled double-sided composite shear wall of the present invention is used as an exterior wall of a building, an insulation layer can be added to the prefabricated wall, and the following steps are specifically performed in step S1:

[0026] S103, machining positioning holes on the insulation layer, setting fasteners on the bottom of the mold, laying the insulation layer on the bottom of the mold and ensuring that the fasteners pass through the positioning holes;

[0027] S104. Process the plate-type connectors and arrange them above the insulation layer.

[0028] In a further improvement of the utility model, the fastener is a threaded nail. When manufacturing a prefabricated wall with an insulation layer, the threaded nail passes through the insulation layer, and when pouring concrete, the concrete will wrap part of the threaded nail. After the concrete wraps the threaded nail and solidifies, the anti-detachment ability of the threaded nail is improved, thereby ensuring the connection between the insulation layer and the concrete wallboard.

[0029] Compared with the prior art, the assembled double-sided composite shear wall of the utility model can realize the simultaneous manufacturing of prefabricated walls on both sides during manufacturing, which accelerates the production cycle. The plate-type connectors can realize the rapid connection and fixation of the prefabricated walls on both sides, which is faster than the previous truss steel bar connection. At the same time, the positioning and processing operations on the plate-type connectors are of high precision and low difficulty, the construction process is simplified, and the production time and economic cost are effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is an overall schematic diagram of the assembled double-sided composite shear wall of the utility model;

[0032] Figure 2-5 It is a schematic diagram of the manufacturing process of the assembled double-sided composite shear wall of the utility model;

[0033] Figure 6 It is a side view of a first plate-type connector and a second plate-type connector of an assembled double-sided composite shear wall of the utility model;

[0034] Figure 7 It is a schematic diagram of the assembly of the connection plate in some embodiments of the assembled double-sided composite shear wall of the utility model;

[0035] Figure 8-10 It is a schematic diagram of the manufacturing process of an embodiment of an assembled double-sided composite shear wall with a support portion of the utility model;

[0036] Figure 11-13 This is a manufacturing flow chart of the prefabricated wall panel with insulation layer of the assembled double-sided composite shear wall of the utility model.

[0037] Fig.14 It is a schematic diagram of the assembly of a prefabricated wall panel with a thermal insulation layer on one side of another embodiment of the assembled double-sided composite shear wall of the utility model;

[0038] Fig.15 It is an assembly drawing of double-sided prefabricated wall panels with insulation layers of other embodiments of the assembled double-sided composite shear wall of the utility model. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions of various embodiments of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0041] An assembled double-sided composite shear wall comprises two parallel prefabricated wall bodies 1 and fixing parts 5, wherein the prefabricated wall bodies 1 comprise concrete wall panels 2 containing a steel skeleton 4 and plate-type connecting parts 3, wherein the plate-type connecting parts 3 are serrated and comprise fixing parts 7 and connecting plates 6 arranged at intervals on the fixing parts 7, wherein the fixing parts 7 and part of the connecting plates 6 are wrapped by the concrete wall panels 2, and the other part of the connecting plates 6 are exposed from one side of the concrete wall panels 2 and are arranged at intervals; the exposed sides of the connecting plates 6 of the two prefabricated wall bodies 1 are arranged relative to each other, wherein the connecting plates 6 on one prefabricated wall body 1 partially overlap with the connecting plates 6 on the other prefabricated wall body 1, and the fixing parts 5 fix the overlapping connecting plates 6 to complete the fixed connection of the two prefabricated wall bodies 1.

[0042] The cross-sectional shape of the fixing portion 7 is a “J” shape. The “J”-shaped fixing portion 7 can effectively prevent the plate-type connector 3 from falling out after being wrapped by concrete, thereby improving the connection strength between the plate-type connector 3 and the concrete wallboard 2.

[0043] In this embodiment, the plate connector 3 includes a first plate connector 8 and a second plate connector 9, and the fixing member 5 is a threaded column 10 and a nut. The threaded column 10 is fixedly arranged on the connecting plate 6 of the first plate connector 8, and a waist-shaped hole 11 is provided on the connecting plate 6 of the second plate connector 9. The two prefabricated walls 1 are arranged with the exposed sides of the plate connector 3 facing each other, so that the threaded column 10 on the first plate connector 8 passes through the waist-shaped hole 11 of the second plate connector 9 on the other prefabricated wall, and the nut connects the threaded column 10 to complete the fixed connection of the two prefabricated walls 1. The purpose of setting the waist-shaped hole 11 is to fine-tune the relative position of the two prefabricated walls by adjusting the position of the threaded column 10 in the waist-shaped hole 11 when the positioning of the processed threaded column 10 deviates.

[0044] In other embodiments, a unified plate connector 3 may also be used, and a through hole 12 is provided on the connecting plate 6 of the plate connector 3 exposed from the concrete wall panel, and when the plate connectors 3 on two prefabricated walls are partially or completely overlapped, the through holes 12 are ensured to overlap, and the fixing member 5 passes through the through hole 12 and fixes the overlapping plate connectors 3. When a unified plate connector 3 with a through hole 12 structure is used, the fixing member 5 may be fixed by a bolt passing through the through hole 12 and then fixed with a nut, or may be fixed by a rivet passing through the through hole 12.

[0045] The manufacturing process for producing the assembled double-sided composite shear wall of this embodiment is as follows:

[0046] S101, process the first plate type connector 8 and the second plate type connector 9, fix the threaded column 10 on the first plate type connector 8, process the waist-shaped hole 11 on the second plate type connector 9, place the processed first plate type connector 8 and the second plate type connector 9 in a mold and keep the serrated shape facing upward.

[0047] S2, arranging the steel skeleton 4 on the plate-type connector 3, and the steel bars of the steel skeleton 4 are erected at the gaps between adjacent connecting plates 6;

[0048] S3, pouring concrete into the mold, during the pouring process, ensure that the poured concrete wraps the steel skeleton 4, the fixing part 7 and part of the connecting plate 6, and the remaining connecting plate 6 remains exposed outside the concrete;

[0049] S401, hoisting the completed prefabricated wall to another prefabricated wall and keeping the two prefabricated walls parallel, so that the exposed sides of the plate-type connectors 3 of the two prefabricated walls 1 face each other, and making the threaded column 10 on the connecting plate 6 of the first plate-type connector 8 of one of the prefabricated walls pass through the waist-shaped hole 11 of the connecting plate 6 of the second plate-type connector 9 of the other wall, so that the connecting plates 6 of the first plate-type connector 8 and the second plate-type connector 9 partially overlap;

[0050] S5. Fix the threaded column 10 by nuts to achieve connection and fixation of the two prefabricated walls 1, thereby forming the assembled double-sided composite shear wall of this embodiment.

[0051] In other embodiments, the plate connector 3 further includes a support portion 13 fixedly connected to the fixing portion 7. The support portion 13 can be fixedly connected to the fixing portion 7 by welding or other means. A plurality of support portions 13 can be arranged at fixed intervals, wrapped by the concrete wall panel 2 and separated from the connection plate 6 by the fixing portion 7. The purpose of providing the support portion 13 is to ensure that the fixing portion 7 of the plate connector 3 can be completely wrapped by concrete when the prefabricated wall 1 is poured. When the plate connector 3 is placed, the support portion 13 is in contact with the bottom surface of the mold, and the fixing portion 7 is lifted to a certain height, so as to ensure that the fixing portion 7 will not be exposed on the other side of the prefabricated wall 1 after pouring the concrete, but will be completely immersed in the concrete.

[0052] The cross-sectional shape of the support portion 13 is a “П” shape. The “П”-shaped structure can vertically place the plate-type connector 3 in the mold and keep it stable.

[0053] In some embodiments using the support portion 13 , in step S2 , the steel skeleton 4 can be either erected in the gaps between adjacent connecting plates 6 or placed on the bottom layer of the mold, in which case the support portion 13 can be placed between the gaps of the steel skeleton 4 .

[0054] In other embodiments, when the assembled double-sided composite shear wall is an exterior wall or other wall with insulation requirements, an insulation layer 14 can be added to the prefabricated wall 1, and the insulation layer 14 is fixed to the surface of the prefabricated wall 1 by screws 15. The specific process flow of the assembled double-sided composite shear wall with an insulation layer 14 is to add the following steps before step S101:

[0055] S103: machining positioning holes on the thermal insulation layer 14, setting screws 15 on the bottom of the mold, laying the thermal insulation layer 14 on the bottom of the mold and ensuring that the screws 15 pass through the positioning holes;

[0056] When manufacturing the prefabricated wall 1, part of the threaded nail 15 passes through the insulation layer 14. When pouring concrete, the concrete will wrap part of the threaded nail 15. After the concrete wraps the threaded nail and solidifies, the anti-slip ability of the threaded nail 15 is improved, thereby ensuring the connection between the insulation layer 14 and the concrete wall panel 2.

[0057] In some other embodiments, both prefabricated walls 1 of the assembled double-sided composite shear wall are provided with an insulation layer 14 .

[0058] In some other embodiments, one prefabricated wall 1 of the assembled double-sided composite shear wall has an insulation layer 14 , while the other prefabricated wall 1 does not have an insulation layer 14 .

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the technical solution of the embodiments of the utility model.

Claims

1. An assembled double-sided composite shear wall, comprising two parallel prefabricated wall bodies and fixings, characterized in that: The prefabricated wall body comprises a concrete wall panel with a steel skeleton and a plate-type connector, wherein the plate-type connector is in a sawtooth shape and comprises a fixing portion and connecting plates arranged at intervals on the fixing portion, wherein the fixing portion and a part of the connecting plates are wrapped by the concrete wall panel, and another part of the connecting plates are exposed from one side of the concrete wall panel and arranged at intervals; The exposed sides of the connecting plates of the two prefabricated walls are arranged opposite to each other, wherein the connecting plate on one prefabricated wall overlaps with the connecting plate on the other prefabricated wall, and the fixing member fixes the connecting plates of the overlapping parts to complete the fixed connection of the two prefabricated walls.

2. The assembled double-sided composite shear wall according to claim 1, characterized in that: The plate-type connector further includes a supporting portion fixedly connected to the fixing portion, wherein the supporting portion is wrapped by the concrete wall panel and is separated from the connecting plate by the fixing portion.

3. The assembled double-sided composite shear wall according to claim 2, characterized in that: The cross-sectional shape of the fixing portion is "J" shaped.

4. The assembled double-sided composite shear wall according to claim 2, characterized in that: The cross-sectional shape of the support portion is "П"-shaped.

5. The assembled double-sided composite shear wall according to claim 1 is characterized in that: The plate-type connector includes a first plate-type connector and a second plate-type connector, and the fixing parts are threaded columns and nuts. The threaded columns are fixedly arranged on the connecting plate of the first plate-type connector, and the connecting plate of the second plate-type connector is provided with a waist-shaped hole. The two prefabricated walls arrange the exposed sides of the plate-type connectors relative to each other, so that the threaded column on the first plate-type connector passes through the waist-shaped hole of the second plate-type connector on the other prefabricated wall, and the nut connects the threaded column to complete the fixed connection of the two prefabricated walls.

6. The assembled double-sided composite shear wall according to claim 1, characterized in that: The connecting plate of the plate-type connector exposed from one side of the concrete wall panel is provided with a through hole. When the plate-type connectors on two prefabricated walls are partially or completely overlapped, the through holes overlap, and the fixing member passes through the through hole and fixes the overlapping plate-type connectors.

7. The assembled double-sided composite shear wall according to claim 6, characterized in that: The fixing members are bolts and nuts. The bolts pass through the overlapping through holes and are fixed by nuts to complete the fixed connection of the overlapping plate-type connecting members.

8. The assembled double-sided composite shear wall according to claim 6, characterized in that: The connecting piece is a rivet, which passes through the overlapping through holes and is fixed to complete the fixed connection of the overlapping plate-type connecting pieces.

9. The assembled double-sided composite shear wall according to claim 1, characterized in that: The prefabricated wall also includes a thermal insulation layer, which is fixed to the surface of the prefabricated wall by fasteners.

10. The assembled double-sided composite shear wall according to claim 9, characterized in that: The fastener is a threaded nail.

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