Connecting structure of double steel plate-concrete combined wall plate

Abstract

The invention discloses a connecting structure of a double-steel-plate-concrete combined wallboard. The connecting structure comprises an upper-layer steel plate, a lower-layer steel plate and full-length bolts. Stud steel plates and perforated steel plates are respectively arranged at the top ends and the bottom ends of the upper-layer steel plate and the lower-layer steel plate; studs of the stud steel plate sequentially penetrate through the holes of the upper-layer steel plate and the holes of the perforated steel plate and are fixed; h-shaped steel and two groups of trapezoidal corrugated steel plates are arranged between the upper-layer steel plate and the lower-layer steel plate; a web of the H-shaped steel is parallel to the upper-layer steel plate; the two groups of trapezoidal corrugated steel plates are symmetrically arranged on two sides of a web of the H-shaped steel; bases of the two groups of trapezoidal corrugated steel plates are respectively propped against the first perforated steel plate and the second perforated steel plate; wave crests of the two groups of trapezoidal corrugated steel plates are respectively propped against two sides of a middle connecting plate of the H-shaped steel; webs of the H-shaped steel are connected with wave crests of the two groups of corrugated steel plates through connecting bolts; a rigid connection system can be formed between the combined wallboards, the anti-sliding capacity of an interface is effectively improved through the structure, and it is ensured that all assemblies are stressed cooperatively.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to a connection structure of a double steel plate-concrete composite wall panel. Background Art

[0002] In the field of construction engineering, double steel plate-concrete composite wall panels are widely used due to their advantages such as high bearing capacity and convenient construction. However, existing technologies have obvious deficiencies in the research on the connection methods between composite wall panels. Traditional connections mostly use single structural forms such as connecting bolts and post-cast concrete strip connections. Although they can achieve basic connection functions, in actual applications, they expose problems such as insufficient node stiffness leading to limited structural stability and unreliable interface bonding performance causing interlayer slippage and peeling damage. These defects not only affect the overall mechanical properties of the composite wall panels, but also significantly restrict their application scope in large-span, high-seismic-demand buildings. Therefore, it is urgent to develop a new connection method that can effectively improve node stiffness, enhance interface shear and tensile strength, and structural integrity, so as to break through the bottleneck of traditional technology and expand the engineering application scenarios of composite wall panels. Summary of the Invention

[0003] The purpose of the present invention is to provide a connection structure of a double steel plate-concrete composite wall panel to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following solutions: A connection structure of a double steel plate-concrete composite wall panel, comprising an upper steel plate, a lower steel plate, and through-length bolts; The top and bottom ends of the upper steel plate are respectively provided with a first bolt steel plate and a first perforated steel plate; The pins of the first pin steel plate are sequentially passed through the openings of the upper steel plate and the first perforated steel plate and fixed; The top end and the bottom end of the lower steel plate are respectively provided with a second perforated steel plate and a second bolt steel plate; The pins of the second pinned steel plate are sequentially passed through the openings of the lower steel plate and the second perforated steel plate and fixed; H-shaped steel and two sets of trapezoidal corrugated steel plates are arranged between the upper steel plate and the lower steel plate; The web of the H-shaped steel is arranged parallel to the upper steel plate; Two groups of trapezoidal corrugated steel plates are symmetrically arranged on both sides of the web of the H-shaped steel; The bases of the two groups of trapezoidal corrugated steel plates are respectively in contact with the first perforated steel plate and the second perforated steel plate; The crests of the two groups of trapezoidal corrugated steel plates respectively collide with both sides of the middle connecting plate of the H-shaped steel; The web of the H-shaped steel is connected to the crests of the two groups of corrugated steel plates by connecting bolts; The through-length bolts sequentially penetrate the first stud steel plate, the upper steel plate, the first perforated steel plate, the trapezoidal corrugated steel plate, the H-shaped steel, the trapezoidal corrugated steel plate, the second perforated steel plate, the lower steel plate, and the second stud steel plate and fix them; Concrete is poured into the gaps formed between the H-shaped steel and the upper steel plate and the lower steel plate.

[0005] Furthermore, the first bolt steel plate is provided with double rows of bolts, and the first hole steel plate is provided with double rows of holes.

[0006] It can be seen from the above technical solutions that, compared with the prior art, the present invention has the following beneficial effects: 1. This invention employs studded steel plates and perforated steel plates on either side of the upper and lower steel plates of the composite wall panel, respectively. Studs penetrate the multiple layers of steel plates to form a "nested mechanical interlocking structure." Combined with the lateral restraint of full-length bolts, this creates a multi-layered, composite tensile-resistance system consisting of "studded steel plate-steel plate-perforated steel plate." This structure achieves dual tensile force transmission through the synergistic effects of mechanical interlocking and interfacial friction, enhancing the tensile bearing capacity of the composite wall panel and effectively suppressing interlayer slippage and interfacial delamination.

[0007] 2. The composite wall panels of this invention utilize symmetrically arranged trapezoidal corrugated steel plates connected to H-shaped steel sections via bolts, creating a "trapezoidal corrugated steel plate-H-shaped steel shear-resistant structure." The H-shaped steel extends deep into the wall panels, sharing loads with the trapezoidal corrugated steel plates. Through-length bolts penetrate all the steel plates to form a rigid connection. This design increases joint stiffness and significantly enhances overall shear resistance. Furthermore, the concrete forms a cylindrical confining pressure constraint at the joints, suppressing cracking and improving seismic performance.

[0008] 3. This invention uses full-length bolts penetrating trapezoidal corrugated steel plates, H-shaped steel, studded steel plates, and perforated steel plates, followed by concrete pouring, to create a rigid connection system between the composite wall panels. This structure effectively improves the interface's anti-slip properties, ensuring coordinated force distribution across all components, and resulting in improved overall mechanical performance compared to traditional single-connection methods.

[0009] 4. The modular wall panels of this invention can be prefabricated in a factory and assembled on-site using bolts in modular configurations, reducing on-site pouring and welding workload, accelerating construction progress, and lowering labor costs. Prefabrication avoids on-site material waste and reduces overall costs compared to traditional cast-in-place connection methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 Schematic diagram of the three-dimensional structure of a double steel plate-concrete composite wall panel in an embodiment of the present invention; Figure 2 This is a front view of a double steel plate-concrete composite wall panel according to an embodiment of the present invention; Figure 3 A side view of a double steel plate-concrete composite wall panel according to an embodiment of the present invention; Figure 4 A top view of a double steel plate-concrete composite wall panel according to an embodiment of the present invention; Figure 5 Schematic diagram of the structure of a trapezoidal corrugated steel plate in an embodiment of the present invention; Figure 6 Schematic diagram of the structure of H-shaped steel in an embodiment of the present invention; Figure 7 Schematic diagram of the structure of the first bolt steel plate in an embodiment of the present invention; Figure 8 Schematic diagram of the structure of the second perforated steel plate in an embodiment of the present invention.

[0012] Description of reference numerals: 1. Composite wall panel; 2. Upper steel plate; 3. Concrete; 4. Lower steel plate; 5. Full-length bolts; 6. First stud steel plate; 7. Second perforated steel plate; 8. Trapezoidal corrugated steel plate; 9. H-shaped steel; 10. Connecting bolts; 11. Post-poured concrete. DETAILED DESCRIPTION

[0013] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0014] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 on this application.

[0015] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0016] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0017] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below with reference to the accompanying drawings.

[0018] Example See Figure 1-4 As shown, the present embodiment provides a connection structure for a double steel plate-concrete composite wall panel, which is used when two composite wall panels 1 need to be connected. The composite wall panel 1 is composed of an upper steel plate 2, concrete 3 and a lower steel plate 4. In the traditional construction field, a single connection method is often used, such as high-strength bolt connection, post-cast concrete strip connection, etc.; although it can connect two composite wall panels 1, a single connection method will affect the performance of the composite wall panels 1, resulting in problems such as insufficient node stiffness and unreliable interface bonding, thereby limiting its scope of application.

[0019] The connection structure of the double steel plate-concrete 3 composite wall panel 1 proposed in this embodiment includes an upper steel plate 2, a lower steel plate 4 and a full-length bolt 5; The top and bottom ends of the upper steel plate 2 are respectively provided with a first bolt steel plate 6 and a first perforated steel plate; The bolts of the first bolt steel plate 6 are passed through the holes of the upper steel plate 2 and the first perforated steel plate in sequence and fixed; The top and bottom ends of the lower steel plate 4 are provided with a second perforated steel plate 7 and a second bolt steel plate respectively; The bolts of the second bolt steel plate are sequentially passed through the openings of the lower steel plate 4 and the second perforated steel plate 7 and fixed; H-shaped steel 9 and two sets of trapezoidal corrugated steel plates 8 are arranged between the upper steel plate 2 and the lower steel plate 4; The web of the H-shaped steel 9 is arranged parallel to the upper steel plate 2; Two sets of trapezoidal corrugated steel plates 8 are symmetrically arranged on both sides of the web of the H-shaped steel 9; The bases of the two sets of trapezoidal corrugated steel plates 8 are in contact with the first perforated steel plate and the second perforated steel plate 7 respectively; The crests of the two sets of trapezoidal corrugated steel plates 8 respectively collide with the two sides of the middle connecting plate of the H-shaped steel 9; The web of the H-shaped steel 9 is connected to the crests of the two sets of corrugated steel plates by connecting bolts 10; The through-length bolt 5 passes through the first stud steel plate 6, the upper steel plate 2, the first perforated steel plate, the trapezoidal corrugated steel plate 8, the H-shaped steel 9, the trapezoidal corrugated steel plate 8, the second perforated steel plate 7, the lower steel plate 4, and the second stud steel plate in sequence and fixes them; Concrete 3 is poured into the gap between the upper steel plate 2 and the lower steel plate 4.

[0020] Specifically, if Figure 1 As shown, the connection structure of the double steel plate-concrete composite wall panel of this embodiment is set at the connection between the two sets of composite wall panels 1. Therefore, a double row of bolts is set on the first bolt steel plate 6, such as Figure 7 As shown, the second perforated steel plate 7 is provided with double rows of openings, such as Figure 8 As shown, double rows of bolts correspond to double rows of openings, one row of bolts penetrates the upper steel plate 2 (or the lower steel plate 4) of one set of composite wall panels 1, and the other row of bolts penetrates the upper steel plate 2 (or the lower steel plate 4) of another set of composite wall panels 1. Two rows of through-length bolts 5 are also required. Figure 4 As shown, its position corresponds to the double row of bolts.

[0021] It should be noted that the first bolt steel plate 6 and the second bolt steel plate have the same structure, and the first perforated steel plate and the second perforated steel plate 7 have the same structure.

[0022] Specifically, perforated steel plates and double-row studded steel plates are placed at both ends of the upper steel plate 2 and lower steel plate 4 of the composite wall panel 1, respectively. Double-row studs penetrate the upper steel plate 2 (or lower steel plate 4) and the perforated steel plate, forming a mechanically interlocking connection structure and constructing a multi-layer composite tensile-resistance system of "studded steel plate-steel plate-perforated steel plate." This system achieves a dual tensile force transmission mechanism through the synergistic effect of mechanical interlocking and interfacial friction. Furthermore, the symmetrical arrangement of the double-row studs, combined with the full-length bolts 5 to form multiple rows of shear members, significantly enhance the tensile bearing capacity of the composite wall panel 1, effectively suppress interlayer displacement, and improve interfacial debonding resistance.

[0023] Inside the composite wall panel 1, two trapezoidal corrugated steel plates 8 are symmetrically placed, and a full-length H-shaped steel 9 is placed at the connection. The H-shaped steel 9 penetrates into the composite wall panel 1, and the web of the H-shaped steel 9 is connected to the crest of the trapezoidal corrugated steel plate 8 by connecting bolts 10, so that the H-shaped steel 9 and the trapezoidal corrugated steel plate 8 become a force-bearing system, which works together to effectively improve the overall shear resistance. The structure of the trapezoidal corrugated steel plate 8 is as follows. Figure 5 As shown, the structure of H-beam 9 is as follows Figure 6 shown.

[0024] Through-length bolts 5 penetrate all steel plates and internal H-shaped steel 9. Concrete (i.e., post-cast concrete 11) is poured at the joints of the composite wall panels 1, creating a rigid connection between them. This strengthens the integrity of the composite wall panels 1 and improves their overall mechanical properties after connection. The post-cast concrete 11 also forms a cylindrical structure at the joints, creating confining pressure constraints that significantly suppress cracking and enhance the seismic performance of the composite wall panels 1.

[0025] It should be noted that if Figure 1 As shown, the concrete 3 is often poured in advance, while the concrete poured in the gap between the H-shaped steel and the upper steel plate 2 and the lower steel plate 4 (i.e., the post-poured concrete 11) is poured after the connection structure of this embodiment is installed.

[0026] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A connection structure of double steel plate-concrete composite wall panels, characterized in that: Including upper steel plate, lower steel plate and full-length bolts; The top and bottom ends of the upper steel plate are respectively provided with a first bolt steel plate and a first perforated steel plate; The pins of the first pin steel plate are sequentially passed through the openings of the upper steel plate and the first perforated steel plate and fixed; The top end and the bottom end of the lower steel plate are respectively provided with a second perforated steel plate and a second bolt steel plate; The pins of the second pinned steel plate are sequentially passed through the openings of the lower steel plate and the second perforated steel plate and fixed; H-shaped steel and two sets of trapezoidal corrugated steel plates are arranged between the upper steel plate and the lower steel plate; The web of the H-shaped steel is arranged parallel to the upper steel plate; Two groups of trapezoidal corrugated steel plates are symmetrically arranged on both sides of the web of the H-shaped steel; The bases of the two groups of trapezoidal corrugated steel plates are respectively in contact with the first perforated steel plate and the second perforated steel plate; The crests of the two groups of trapezoidal corrugated steel plates respectively collide with both sides of the middle connecting plate of the H-shaped steel; The web of the H-shaped steel is connected to the crests of the two groups of corrugated steel plates by connecting bolts; The through-length bolts sequentially penetrate the first stud steel plate, the upper steel plate, the first perforated steel plate, the trapezoidal corrugated steel plate, the H-shaped steel, the trapezoidal corrugated steel plate, the second perforated steel plate, the lower steel plate, and the second stud steel plate and fix them; Concrete is poured into the gaps formed between the H-shaped steel and the upper steel plate and the lower steel plate.

2. The connection structure of a double steel plate-concrete composite wall panel according to claim 1, characterized in that: The first bolt steel plate is provided with a double row of bolts, and the first hole steel plate is provided with a double row of holes.

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