Large-span prefabricated stress composite wallboard

Abstract

The invention discloses a large-span prefabricated stress composite wallboard which comprises an inner wall body, a reinforcing structure and an outer wall body, the inner wall body and the reinforcing structure can be formed through pouring at the same time, after machining is completed, the reinforcing structure is used for connecting the inner wall body side by side, and an inner core of the large-span wallboard is formed; due to the fact that the pouring pipe arranged on the reinforcing structure is communicated with the alignment groove and the pouring channel of the inner wall body, prestressed tendons can be arranged at the position of the pouring pipe, the prestressed tendons are arranged in the inner wall body through a post-tensioning method, after grouting is completed, the inner wall body and the reinforcing structure are fixed, the inner core is manufactured, then the inner core is placed in a mold, and the outer wall body is poured. The large-span prefabricated stress composite wallboard is simple in machining process, high in wall strength, high in corrosion resistance and convenient to install.

Description

Technical Field

[0001] The present invention relates to the field of building material processing, and particularly to a large-span precast stress composite wall panel. Background Art

[0002] Precast prestressed composite wall panels are an important development direction of prefabricated building technology, which combines the advantages of prestress technology and composite materials to improve the structural performance and construction efficiency of wall panels. In the prior art, traditional wall panels mostly adopt on-site casting or ordinary precast processes, suffering from problems such as insufficient strength, limited span, and long construction period. For example, the prestressed concrete precast hollow wall panel described in Application No. CN200520118555.2 significantly improves the flexural performance and span of the wall panel by configuring double-layer prestressed steel strands, but its connection method still relies on embedded iron parts, lacking construction flexibility. With technological progress, a steel truss prestressed precast concrete wall panel proposed in CN202411159420.4 further optimizes the crack resistance and industrial production efficiency of thin-wall panels through the composite design of a channel web truss and a concrete bottom plate, but still needs to solve the problems of complex connection nodes and high on-site installation accuracy requirements. Moreover, there are few existing precast wall panels suitable for large-span wall panels in prefabricated buildings, and it is difficult to ensure the integrity of large-span precast wall panels during transportation and long-term use using existing processing technologies. Summary of the Invention

[0003] In order to improve the strength and durability of large-span precast wall panels, the present invention proposes a large-span precast stress composite wall panel, comprising: an inner wall body, a strengthening structure, and an outer wall body; a plurality of the inner wall bodies are arranged side by side, the strengthening structure is used to connect adjacent inner wall bodies, and the outer wall body is formed by pouring after the inner wall body and the strengthening structure are arranged; the inner wall body includes a steel reinforcement cage built by a plurality of rod-shaped circular steel bars, longitudinal steel bars, and transverse steel bars, and a pouring layer that wraps the steel reinforcement cage, and the parts of the longitudinal steel bars and transverse steel bars protruding from the pouring layer form anchor rods; one side of the pouring layer has a positioning groove, and a plurality of perfusion channels arranged side by side and penetrating horizontally are provided in the pouring layer, and the perfusion ports at both ends of the perfusion channels are respectively arranged in the positioning groove and on the side of the inner wall body opposite to the positioning groove; the strengthening structure includes: two mirror-image bodies, the bodies are in a cube shape, a groove is provided on one side of the body, and a plurality of perfusion holes are arranged side by side in the groove, and each perfusion hole is respectively communicated with a perfusion pipe arranged at the top of the body through a channel inside the body; a plurality of jacks are also arranged around the groove, and a groove pointing to the middle of the groove is provided at the opening of each jack; a plurality of anchoring components are also arranged side by side in the groove, and the anchoring components include square pipes perpendicular to the groove and anchor rods protruding from each surface of the square pipe; the surface of the inner wall body with the positioning groove is inserted into the groove of the strengthening structure, and at this time, the anchor rods of the inner wall body are inserted into the jacks of the strengthening structure; prestressed steel bars are arranged in the perfusion channels by the post-tensioning method, and grout is injected through the perfusion pipes to fill the spaces of the groove, the positioning groove, the perfusion channels, and the jacks, and the strengthening structure and the inner wall body are fixed after drying.

[0004] Preferably, a plurality of support rods are further provided on both sides of the main body of the strengthening structure.

[0005] Preferably, the perfusion holes and the anchoring components are arranged at intervals.

[0006] Preferably, the main body is a precast concrete member, and the anchoring components are pre-embedded metal members.

[0007] Preferably, the perfusion channels are arranged in an arc shape.

[0008] Preferably, pre-embedded fasteners are uniformly arranged on the outer periphery of the outer wall body.

[0009] Preferably, the pouring layer of the inner wall body is made of C60 high-strength concrete, and the outer wall body is made of epoxy resin concrete or polymer-modified concrete.

[0010] In addition, a processing method for a large-span precast stress composite wall panel is also proposed, comprising the following steps: S1. Use circular steel bars, transverse steel bars, and longitudinal steel bars to build a steel reinforcement cage, send it into a mold to pour C60 high-strength concrete, and form the above-mentioned inner wall body through steam curing and water curing. Pour and form the above-mentioned strengthening structure, and pre-embed anchoring components and perfusion pipes in the strengthening structure. The perfusion pipes and the channels inside the main body are integrated and in a J shape; S2. Two or more inner walls are arranged side by side, and adjacent inner walls are connected by a reinforcing structure. The specific operation is to insert the anchor rod on one side of the inner wall having the alignment groove into the jack of the reinforcing structure, and the anchor assembly of the reinforcing structure also extends into the alignment groove; S3. Use the post-tensioning method to set prestressed tendons, i.e., steel cables, in the pouring channel of the inner wall, and then grouting, anchor sealing, steam curing, and water curing to achieve the fixation of the inner wall and the reinforcement structure and form the prefabricated part A; S4. Place prefabricated component A into a mold to cast the above-mentioned outer wall, and steam and water cure it to make prefabricated component B, i.e., a large-span prefabricated stress composite wall panel. The casting material is epoxy resin concrete or polymer modified concrete. During casting, embedded fasteners are evenly arranged on the periphery of the outer wall.

[0011] The present invention is divided into three parts, namely, an inner wall, a reinforcement structure and an outer wall. The inner wall and the reinforcement structure can be formed by casting at the same time. After the processing is completed, the inner wall is connected side by side using the reinforcement structure to form the inner core of the large-span wallboard. Since the pouring pipe arranged in the reinforcement structure of the present invention is connected with the alignment groove and the pouring channel of the inner wall, the prestressed tendons can be arranged at the pouring pipe, and the prestressed tendons are arranged in the inner wall by the post-tensioning method. After the grouting is completed, the inner wall and the reinforcement structure are fixed, the inner core is made, and then the inner core is placed in a mold to cast the outer wall, finally forming a large-span prefabricated stress composite wallboard. The present invention has a simple processing process, high wall strength, strong corrosion resistance and convenient installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the specific implementation methods of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a top view of the present invention.

[0014] Figure 2 Schematic diagram of the installation of interior walls and reinforcement structures.

[0015] Figure 3 This is a three-dimensional diagram of the interior wall.

[0016] Figure 4 This is a side view of the inner wall.

[0017] Figure 5 To strengthen the structural stereogram.

[0018] Figure 6 To strengthen the structural front view.

[0019] Figure 7 Side view of the reinforcement structure.

[0020] Figure 8 Top view of the reinforcement structure.

[0021] Figure 9 Three-dimensional view of the present invention.

[0022] In the figure: 1, reinforcement structure; 2, inner wall; 3, outer wall; 4, embedded fastener; 11, main body; 12, support rod; 13, groove; 14, perfusion pipe; 15, perfusion hole; 16, anchoring component; 17, jack; 18, groove; 21, anchoring rod; 22, perfusion port; 23, alignment groove; 24, perfusion channel; 25, longitudinal reinforcement; 26, transverse reinforcement; 27, circular reinforcement; 28, pouring layer. Detailed implementation manner

[0023] Each device (components without specific structures) selected in this application is a general standard component or a component known to those skilled in the art, and its structure and principle can be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0024] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some communication interfaces. The indirect coupling or communication connection of the devices or units can be in electrical, mechanical, or other forms.

[0027] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place, or they can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0028] In addition, in each embodiment of the present invention, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0029] Example 1. The large-span precast stress composite wall panel of the present invention includes: an inner wall 2, a strengthening structure 1, and an outer wall 3. Two inner walls 2 are arranged side by side. The strengthening structure 1 is used to connect adjacent inner walls 2. The outer wall 3 is formed by pouring after the inner walls 2 and the strengthening structure 1 are set up. The inner wall 2 includes a steel reinforcement cage built by a plurality of rod-shaped circular ribs 27, longitudinal ribs 25, and transverse ribs 26, and a pouring layer 28 that wraps the steel reinforcement cage. The joints where the circular ribs 27, longitudinal ribs 25, and transverse ribs 26 contact are fixed by welding or wire bundling. The parts of the longitudinal ribs 25 and transverse ribs 26 that extend out of the pouring layer 28 form anchor rods 21. One side of the pouring layer 28 has a positioning groove 23. A plurality of perfusion channels 24 arranged side by side and horizontally penetrating are provided in the pouring layer 28. The perfusion ports 22 at both ends of the perfusion channels 24 are respectively arranged in the positioning groove 23 and on the side of the inner wall 2 opposite to the positioning groove 23. The strengthening structure 1 includes: two mirror-image main bodies 11. The main body 11 is cube-shaped. A groove 13 is provided on one side of the main body 11. A plurality of perfusion holes 15 are arranged side by side in the groove 13. Each perfusion hole 15 is respectively communicated with a perfusion pipe 14 provided at the top of the main body 11 through a channel inside the main body 11. A plurality of jacks 17 are also provided around the groove 13. A groove 18 pointing to the middle of the groove 13 is provided at the opening of each jack 17. The groove 18 is used for the slurry to fill the space between the anchor rod and the main body by forming a filling between the jack and the anchor rod during grouting, so as to fix the anchor rod and the main body. A plurality of anchor assemblies 16 are also arranged side by side in the groove 13. The anchor assembly 16 includes a square pipe perpendicular to the groove 13 and anchor rods extending out of each face of the square pipe. The side of the inner wall 2 with the positioning groove 23 is inserted into the groove 13 of the strengthening structure 1. After perfusion, the anchor assembly forms a firm fixing relationship with the inner wall. At this time, the anchor rod 21 of the inner wall 2 is inserted into the jack 17 of the strengthening structure 1. Prestressed tendons are arranged in the perfusion channels 24 by the post-tensioning method, and grouting is carried out through the perfusion pipes 14 to fill the spaces of the groove 13, the positioning groove, the perfusion channels 24, and the jacks 17. After drying, the strengthening structure 1 and the inner wall 2 are fixed.

[0030] Preferably, a plurality of support rods 12 are further provided on both sides of the main body 11 of the strengthening structure 1.

[0031] Preferably, the perfusion holes 15 and the anchor assemblies 16 are arranged at intervals.

[0032] Preferably, the main body 11 is a concrete precast member, and the anchor assembly 16 is a pre-embedded metal member.

[0033] Preferably, the perfusion channels 24 are arranged in an arc shape.

[0034] Preferably, pre-embedded fasteners 4 are uniformly arranged on the outer periphery of the outer wall 3.

[0035] Preferably, the casting layer 28 of the inner wall 2 is made of C60 high-strength concrete, and the outer wall 3 is made of epoxy resin concrete or polymer modified concrete.

[0036] Example 2: A method for manufacturing the large-span prefabricated stress composite wallboard described in Example 1, comprising the following steps: S1. Use circular steel bars, transverse bars and longitudinal bars to build a steel cage, and put it into a mold to cast C60 high-strength concrete, and then steam and water-cure to form the above-mentioned inner wall, and cast to form the above-mentioned reinforced structure. The reinforced structure is pre-buried with anchor components and injection pipes, and the injection pipes are integrated with the channel inside the main body and are J-shaped; S2. Two or more inner walls are arranged side by side, and adjacent inner walls are connected by a reinforcing structure. The specific operation is to insert the anchor rod on one side of the inner wall having the alignment groove into the jack of the reinforcing structure, and the anchor assembly of the reinforcing structure also extends into the alignment groove; S3. Use the post-tensioning method to set prestressed tendons, i.e., steel cables, in the pouring channel of the inner wall, and then grouting, anchor sealing, steam curing, and water curing to achieve the fixation of the inner wall and the reinforcement structure and form the prefabricated part A; S4. Place prefabricated component A into a mold to cast the above-mentioned outer wall, and steam and water cure it to make prefabricated component B, i.e., a large-span prefabricated stress composite wall panel. The casting material is epoxy resin concrete or polymer modified concrete. During casting, embedded fasteners are evenly arranged on the periphery of the outer wall.

[0037] The present invention is divided into three parts, namely, an inner wall, a reinforcement structure and an outer wall. The inner wall and the reinforcement structure can be formed by casting at the same time. After the processing is completed, the inner wall is connected side by side using the reinforcement structure to form the inner core of the large-span wallboard. Since the pouring pipe arranged in the reinforcement structure of the present invention is connected with the alignment groove and the pouring channel of the inner wall, the prestressed tendons can be arranged at the pouring pipe, and the prestressed tendons are arranged in the inner wall by the post-tensioning method. After the grouting is completed, the inner wall and the reinforcement structure are fixed, the inner core is made, and then the inner core is placed in a mold to cast the outer wall, finally forming a large-span prefabricated stress composite wallboard. The present invention has a simple processing process, high wall strength, strong corrosion resistance and convenient installation.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-span precast stress composite wall panel, characterized in that: Comprising: An inner wall, a strengthening structure, and an outer wall; a plurality of inner walls are arranged side by side, the strengthening structure is used to connect adjacent inner walls, and the outer wall is formed by pouring after the inner walls and the strengthening structure are arranged; the inner wall includes a steel reinforcement cage built by a plurality of ring-shaped steel bars, longitudinal steel bars, and transverse steel bars, and a pouring layer that wraps the steel reinforcement cage; the parts of the longitudinal steel bars and transverse steel bars protruding from the pouring layer form anchor rods; one side of the pouring layer has a positioning groove, and a plurality of perfusion channels are arranged side by side and penetrate horizontally in the pouring layer. The perfusion ports at both ends of the perfusion channels are respectively arranged in the positioning groove and on the side of the inner wall opposite to the positioning groove; the strengthening structure includes: two mirror-image main bodies, the main bodies are cube-shaped, there is a groove on one side of the main body, and there are a plurality of perfusion holes arranged side by side in the groove. Each perfusion hole is respectively communicated with a perfusion pipe arranged at the top of the main body through a channel inside the main body; a plurality of jacks are also arranged around the groove in a ring shape, and a groove pointing to the middle of the groove is arranged at the opening of each jack; a plurality of anchoring components are also arranged side by side in the groove. The anchoring component includes a square pipe perpendicular to the groove and anchor rods protruding from each surface of the square pipe; the side of the inner wall with the positioning groove is inserted into the groove of the strengthening structure, and at this time the anchor rods of the inner wall are inserted into the jacks of the strengthening structure; prestressed tendons are arranged in the perfusion channels by the post-tensioning method, and grouting is carried out through the perfusion pipes to fill the spaces of the groove, the positioning groove, the perfusion channels, and the jacks, and the strengthening structure and the inner wall are fixed after drying.

2. The large-span precast stress composite wall panel according to claim 1, wherein: A plurality of support rods are also arranged on both sides of the main body of the strengthening structure.

3. The large-span precast stress composite wall panel according to claim 2, characterized in that: The perfusion holes and the anchoring components are arranged at intervals.

4. The large-span precast stress composite wall panel according to claim 3, wherein: The main body is a precast concrete member, and the anchoring component is a pre-embedded metal member.

5. The large-span precast stress composite wall panel according to claim 4, characterized in that: The perfusion channels are arranged in an arc shape.

6. The large-span precast stressed composite wall panel according to claim 5, wherein: Embedded fasteners are uniformly arranged on the outer periphery of the outer wall.

7. The large-span precast stress composite wall panel according to claim 6, wherein: The pouring layer of the inner wall is made of C60 high-strength concrete, and the outer wall is made of epoxy resin concrete or polymer modified concrete.

8. A processing method for manufacturing the large-span precast stress composite wallboard according to claim 1, characterized in that: Including the following steps: S1. Use ring-shaped steel bars, transverse steel bars, and longitudinal steel bars to build a steel reinforcement cage, send it into a mold to pour C60 high-strength concrete, and form the inner wall described in claim 1 through steam curing and water curing. Pour and form the strengthening structure described in claim 1. The anchoring component and the perfusion pipe are pre-embedded in the strengthening structure, and the perfusion pipe and the channel inside the main body are integrated and in a J shape. S2. Arrange two or more inner walls side by side, and use the strengthening structure to connect adjacent inner walls. The specific operation is to insert the anchor rods on the side of the inner wall with the positioning groove into the jacks of the strengthening structure. At this time, the anchoring components of the strengthening structure also extend into the positioning groove. S3. Use the post-tensioning method to arrange prestressed tendons, that is, steel cables, in the perfusion channels of the inner wall, and then grout, seal the anchor, steam cure, and water cure to realize the fixation of the inner wall and the strengthening structure and form precast part A. S4. Place precast part A into a mold to pour the outer wall described in claim 1, and steam cure and water cure to make precast part B, that is, a large-span pre-stressed composite wall panel. The pouring material is epoxy resin concrete or polymer modified concrete, and pre-embedded fasteners are uniformly arranged on the outer periphery of the outer wall during pouring.

Images