Mortise and tenon type channel steel shear connector of steel-concrete-steel combined wallboard structure

Abstract

The utility model relates to the technical field of building structures, in particular to a tenon-and-mortise type channel steel shear connector of a steel-concrete-steel combined wallboard structure, which comprises a connecting frame, and the connecting frame comprises a frame main body, channel steel with a notch on the outer side and channel steel without a notch on the outer side, the outer side notched channel steel and the outer side non-notched channel steel are arranged on the outer edge of the frame main body; the frame body comprises a plurality of internal steel channels which are arranged at intervals in a crossed mode in the vertical direction and the horizontal direction and form a concrete cavity, and the concrete cavity is used for pouring concrete. The top steel plate and the bottom steel plate are located on the two sides of the connecting frame, and the studs are connected with the connecting frame, the top steel plate and the bottom steel plate. The frame structure of the connecting frame can effectively disperse shearing force, and the overall shearing rigidity and strength of the wallboard structure are improved. Meanwhile, due to the arrangement of the internal channel steel, local stress can be dispersed to a larger area, and local stress concentration of concrete and local strain of the steel plate are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a mortise and tenon type channel steel shearing connector for a steel-concrete-steel composite wall panel structure. Background Art

[0002] Steel-concrete-steel composite wall panels are multi-layer composite structures widely used in engineering applications requiring high strength, impact resistance, and explosion resistance, such as nuclear power plants, offshore platforms, underground structures, and protective structures. Their typical construction involves filling concrete between two layers of steel plates, connected by shear connectors. This creates a high-strength sandwich structure that fully utilizes the tensile strength of the steel plates and the compressive strength of the concrete, effectively resisting various static and dynamic loads. Furthermore, the steel plates can serve as permanent formwork, reducing the construction costs of traditional formwork.

[0003] Traditional single-stud shear connectors rely primarily on the shear capacity of each stud. When subjected to shear forces, localized stress concentrates around the studs, which can easily cause concrete cracking or stud pullout, weakening the overall structure's bearing capacity. These shortcomings can prevent the shear connector and steel plate from working properly together, posing a significant safety hazard. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problems of local stress concentration in the bolt shear connectors in the prior art, the possible separation of the connectors from the steel plates in the structure, and the poor tensile and shear resistance of the bolt connectors leading to reduced structural integrity, thereby providing mortise and tenon channel steel shear connectors for steel-concrete-steel composite wall panel structures.

[0005] In order to solve the above technical problems, the utility model provides a mortise and tenon type channel steel shear connector of a steel-concrete-steel composite wall panel structure, comprising: a connecting frame, the connecting frame comprising a frame body and outer notched channel steel and outer non-notched channel steel, the outer notched channel steel and outer non-notched channel steel being arranged on the outer edge of the frame body; the frame body comprising a plurality of internal channel steels, the plurality of internal channel steels being respectively crossed and spaced along the vertical and horizontal directions, and forming a concrete cavity, the concrete cavity being used for pouring concrete; a top steel plate and a bottom steel plate being arranged on both sides of the connecting frame, and bolts connecting the connecting frame and the top steel plate and the bottom steel plate.

[0006] Furthermore, the internal channel steel includes a web and flange plates arranged on both sides of the web, and a plurality of mortise and tenon notches are arranged at intervals on the flange plate on one side, and the plurality of internal channel steels are connected by the mortise and tenon notches.

[0007] Furthermore, the width of the mortise and tenon notch is greater than the width of the flange plate.

[0008] Furthermore, the vertical depth of the mortise and tenon notch is greater than 1 / 2 of the web height.

[0009] Furthermore, tenons are provided at both ends of the web, and the depth of the mortise and tenon notches near the tenons is greater than the thickness of the flange plate.

[0010] Furthermore, the opening directions of the inner channel steel, the outer notched channel steel, and the outer non-notched channel steel are all oriented toward the geometric center position inside the connecting frame.

[0011] Furthermore, the joints between the outer notched channel steel and the outer non-notched channel steel are connected by fillet welds.

[0012] Furthermore, the top steel plate and the bottom steel plate have the same structure.

[0013] Furthermore, bolt holes are provided on the top steel plate, the bottom steel plate and the connecting frame, and the diameter of the bolts is smaller than the diameter of the bolt holes.

[0014] Furthermore, the inner channel steel, the outer notched channel steel, and the outer non-notched channel steel are all formed by bending steel plates.

[0015] The technical solution of this utility model has the following advantages:

[0016] 1. The mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure provided by the present invention comprises: a connecting frame, wherein the connecting frame comprises a frame body and outer notched channel steels and outer non-notched channel steels, wherein the outer notched channel steels and outer non-notched channel steels are arranged on the outer edge of the frame body; the frame body comprises a plurality of internal channel steels, wherein the plurality of internal channel steels are respectively arranged crosswise and at intervals in the vertical direction and the horizontal direction to form a concrete cavity, wherein the concrete cavity is used for pouring concrete; a top steel plate and a bottom steel plate are located on both sides of the connecting frame, and bolts connect the connecting frame and the top steel plate and the bottom steel plate.

[0017] The connecting frame is composed of a main frame, external notched channels, and external unnotched channels. The main frame comprises multiple internal channels, which are intersected and spaced vertically and horizontally, and connected with mortise and tenon joints to form the main frame. Concrete cavities are formed at the intersections for pouring concrete. Top and bottom steel plates are placed on either side of the connecting frame, forming the mortise and tenon channel shear connectors of the steel-concrete-steel composite wall panel structure.

[0018] This mortise-and-tenon channel steel shear connector for a steel-concrete-steel composite wall panel structure adds a stud shear connection to the inherent rigidity of the channel steel, enhancing the overall shear performance of the connector. The connecting frame's framework effectively distributes shear forces, increasing the overall shear stiffness and strength of the wall panel structure. Furthermore, the internal channel steel disperses local stresses over a larger area, effectively reducing localized stress concentrations in the concrete and localized strain in the steel plate, enhancing the durability and load-bearing capacity of the wall panel structure. Furthermore, the connecting frame serves as both a framework and a support. The structural characteristics of the channel steel provide excellent bending and torsional resistance, improving the overall stability of the wall structure under complex loads. This mortise-and-tenon channel steel shear connector for a steel-concrete-steel composite wall panel structure is easily accessible and easy to process. It can be used as a permanent model, saving steel plate. It can also be mass-produced in steel processing plants using laser cutting technology, effectively saving time and labor costs and accelerating construction schedules.

[0019] 2. The utility model provides a mortise and tenon type channel steel shear connector for a steel-concrete-steel composite wall panel structure, wherein the internal channel steel includes a web and flange plates provided on both sides of the web. A plurality of mortise and tenon notches are provided at intervals on the flange plate on one side, and the plurality of internal channel steels are connected via the mortise and tenon notches. By providing a plurality of mortise and tenon notches at intervals on the flange plate, the mortise and tenon connection of the plurality of internal channel steels can be achieved, and the mortise and tenon nodes are formed by splicing the respective mortise and tenon notches, forming a woven mesh as a whole. This arrangement provides a relatively simple connection method, and the structures of the plurality of internal channel steels are identical, which facilitates early processing and production, while also reducing processing costs.

[0020] 3. The mortise and tenon channel steel shear connector for the steel-concrete-steel composite wall panel structure provided by this invention has a mortise and tenon notch width greater than the width of the flange plate. This arrangement facilitates the installation of the flange plate in the mortise and tenon notch, avoiding the need for repeated positioning and wasted splicing time.

[0021] The purpose of providing this summary is to introduce a selection of concepts in a simplified form, which will be further described in the detailed description below. This summary is not intended to identify key features or essential features of the present disclosure, nor is it intended to limit the scope of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 any creative work.

[0023] Figure 1 A schematic structural diagram of the mortise and tenon type channel steel shear connector for the steel-concrete-steel composite wall panel structure provided by the present invention;

[0024] Figure 2 A side view of the mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure provided by the present invention;

[0025] Figure 3 A schematic structural diagram of the inner channel steel of the mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure provided by the present invention;

[0026] Figure 4 A side view of the inner channel steel of the mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure provided by the present invention;

[0027] Figure 5 A schematic structural diagram of the frame body of the mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure provided by the present invention;

[0028] Figure 6 A side view of the frame body of the mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure provided by the present invention;

[0029] Figure 7 A schematic structural diagram of the outer notched channel steel of the mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure provided by the present invention;

[0030] Figure 8 This is a structural schematic diagram of the outer side unnotched channel steel of the mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure provided by the utility model.

[0031] Description of reference numerals:

[0032] 1. Frame body; 2. Channel steel with notch on the outside; 3. Channel steel without notch on the outside; 4. Inner channel steel; 5. Concrete cavity; 6. Top steel plate; 7. Bottom steel plate; 8. Studs; 9. Web plate; 10. Flange plate; 11. Mortise and tenon notch; 12. Tenon; 13. Bolt hole. DETAILED DESCRIPTION

[0033] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and description are to be considered as illustrative in nature and not restrictive.

[0034] In the description of the present disclosure, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating the description of the present disclosure and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present disclosure. Furthermore, 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 indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of the present disclosure, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0035] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical, electrical, or intercommunication connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0036] In this disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is at a lower level than the second feature.

[0037] The disclosure below provides many different embodiments or examples for realizing different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0038] The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0039] See also Figures 1 to 8 As shown, the utility model provides a mortise and tenon type channel steel shear connector of a steel-concrete-steel composite wall panel structure, comprising: a connecting frame, the connecting frame comprising a frame body 1 and an outer notched channel steel 2 and an outer non-notched channel steel 3, the outer notched channel steel 2 and the outer non-notched channel steel 3 being arranged on the outer edge of the frame body 1; the frame body 1 comprising a plurality of internal channel steels 4, the plurality of internal channel steels 4 being cross-connected and spaced apart in the vertical and horizontal directions, and forming a concrete cavity 5, the concrete cavity 5 being used for pouring concrete; a top steel plate 6 and a bottom steel plate 7, located on both sides of the connecting frame, and bolts 8 connecting the connecting frame and the top steel plate 6 and the bottom steel plate 7.

[0040] The connecting frame is formed by a main frame 1, external notched channel steel 2, and external unnotched channel steel 3. The main frame 1 includes multiple internal channel steels 4, which are intersected and spaced vertically and horizontally, and connected with each other using mortise and tenon joints, thereby connecting the multiple internal channel steels 4 and forming the main frame 1. Concrete cavities 5 are formed at the intersections for pouring concrete. Top and bottom steel plates 6 and 7 are placed on either side of the connecting frame, forming the mortise and tenon channel steel shear connectors of the steel-concrete-steel composite wall panel structure.

[0041] This steel-concrete-steel composite wall panel structure features mortise-and-tenon channel steel shear connectors that enhance the inherent rigidity of the channel steel by adding a stud 8 shear connection, thereby improving the overall shear resistance of the shear connector. The framework structure of the connecting frame effectively disperses shear forces, enhancing the overall shear stiffness and strength of the wall panel structure. Furthermore, the internal channel steel 4 disperses local stresses over a larger area, effectively reducing local stress concentrations in the concrete and local strain in the steel plate, thereby enhancing the durability and load-bearing capacity of the wall panel structure. Furthermore, the connecting frame serves as both a framework and a support. The structural characteristics of the channel steel provide it with excellent bending and torsion resistance, enhancing the overall stability of the wall structure under complex loads. This steel-concrete-steel composite wall panel structure features mortise-and-tenon channel steel shear connectors that are easily accessible and easy to process. They can be used as permanent models, saving steel plate usage. They can also be mass-produced in steel processing plants using laser cutting technology, effectively saving time and labor costs and accelerating construction progress.

[0042] There are four internal channel steels 4 in the vertical direction and four in the horizontal direction. The internal channel steels 4 in the vertical direction and the internal channel steels 4 in the horizontal direction are connected by mortise and tenon joints to form a concrete cavity 5 .

[0043] In this embodiment, the internal channel steel 4 includes a web 9 and flange plates 10 provided on both sides of the web 9 , and a plurality of mortise and tenon notches 11 are provided on one side of the flange plate 10 at intervals, and the plurality of internal channel steels 4 are connected by the mortise and tenon notches 11 .

[0044] By providing multiple mortise and tenon notches 11 at intervals on the flange plate 10, multiple internal channel steels 4 can be connected by mortise and tenon joints. These joints are then joined together through the respective mortise and tenon notches 11 to form mortise and tenon nodes, forming a woven mesh overall. This arrangement simplifies the connection method, and the multiple internal channel steels 4 have the same structure, facilitating early processing and manufacturing while also reducing processing costs.

[0045] In some optional embodiments, the width of the mortise and tenon notch 11 is greater than the width of the flange plate 10. This arrangement facilitates the installation of the flange plate 10 on the mortise and tenon notch 11, avoiding the need for repeated positioning and wasting splicing time.

[0046] Specifically, the vertical notch depth of the mortise and tenon notch 11 is greater than 1 / 2 of the height of the web 9, thereby facilitating the mortise and tenon connection between the internal channel steel 4 in the vertical direction and the internal channel steel 4 in the horizontal direction.

[0047] The mortise and tenon notches 11 of the inner channel steel 4 can be formed by cutting in a steel processing plant.

[0048] In some optional embodiments, tenons 12 are provided at both ends of the web 9 , and the depth of the mortise and tenon notches 11 near the tenons 12 is greater than the thickness of the flange plate 10 , so as to facilitate the rapid connection of the internal channel steel 4 .

[0049] The tenons 12 are arranged on the inner channel steel 4, and the edge tenons 12 are respectively inserted into the inner sides of the flanges of the outer notched channel steel 2 and the outer non-notched channel steel 3 to form a fixed connection by welding.

[0050] In this embodiment, the opening directions of the inner channel steel 4, the outer notched channel steel 2, and the outer non-notched channel steel 3 are all oriented toward the geometric center position inside the connection frame.

[0051] Specifically, the outer notched channel steel 2 and the outer non-notched channel steel 3 are fixed to the bottom steel plate 7 by spot welding; the joints of the outer notched channel steel 2 and the outer non-notched channel steel 3 are connected by welding fillet welds to fix and fill the gaps, and together with the frame body 1 form a connection frame without bolt holes 13.

[0052] In this embodiment, the top steel plate 6 and the bottom steel plate 7 have the same structure, which facilitates the early processing and production and reduces the processing cost.

[0053] In some optional embodiments, bolt holes 13 are provided on the top steel plate 6 , the bottom steel plate 7 and the connecting frame, and the diameter of the bolt 8 is smaller than the diameter of the bolt hole 13 .

[0054] The bolt holes 13 are drilled to form circular holes with a diameter slightly larger than that of the bolts 8. Several bolts 8 are welded to the bottom steel plate 7 with nuts, then passed through the connecting frame after the holes are opened. After the concrete is poured, they are connected to the top steel plate 6 and the nuts on the top steel plate 6 are tightened to complete the connection. After the concrete hardens, the steel-concrete-steel composite wall panel is formed and put into use as a construction module unit.

[0055] The inner channel steel 4, the outer notched channel steel 2, and the outer non-notched channel steel 3 are all formed by bending steel plates, that is, by bending a number of thin steel plates of the same size, which can be formed by laser cutting in a steel processing plant.

[0056] The working principle of the mortise and tenon channel steel shear connector of the steel-concrete-steel composite wall panel structure is:

[0057] The mortise and tenon channel shear connector, through its inherent rigidity, serves as the primary load-bearing component of the shear connector. When the steel plate is subjected to shear forces, the connecting frame resists significant shear deformation and evenly distributes the shear forces across the channel, reducing localized stress concentrations. Internal studs (8) are deeply embedded in the concrete, providing additional shear resistance.

[0058] The function of the studs 8 is to increase the mechanical bite force between the channel steel and the concrete to enhance the interfacial bonding between the two. When subjected to shear force, the studs 8 prevent relative slippage between the channel steel and the concrete by resisting shear deformation. The studs 8 can disperse the shear force transmitted by the channel steel, allowing it to be more effectively transmitted to the concrete. Concrete fills the gaps in the channel steel and around the studs 8, dispersing the shear force transmitted by the channel steel and the studs 8, and limiting the lateral deformation of the channel steel, providing a restraining effect. Under the combined action of the channel steel, studs 8 and concrete, the shear resistance of the structure is further improved.

[0059] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. Mortise and tenon type channel steel shear connector for steel-concrete-steel composite wall panel structure, characterized in that: include: A connecting frame, comprising a frame body (1), an outer notched channel steel (2), and an outer non-notched channel steel (3), wherein the outer notched channel steel (2) and the outer non-notched channel steel (3) are arranged on the outer edge of the frame body (1); The frame body (1) comprises a plurality of internal channel steels (4), wherein the plurality of internal channel steels (4) are respectively arranged in a vertical direction and a horizontal direction and are spaced apart to form a concrete cavity (5), and the concrete cavity (5) is used for pouring concrete; A top steel plate (6) and a bottom steel plate (7) are arranged on both sides of the connection frame, and bolts (8) connect the connection frame and the top steel plate (6) and the bottom steel plate (7).

2. The mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure according to claim 1, characterized in that: The internal channel steel (4) comprises a web (9) and flange plates (10) arranged on both sides of the web (9); a plurality of mortise and tenon notches (11) are arranged at intervals on one side of the flange plate (10); and a plurality of the internal channel steels (4) are connected via the mortise and tenon notches (11).

3. The mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure according to claim 2, characterized in that: The width of the mortise and tenon notch (11) is greater than the width of the flange plate (10).

4. The mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure according to claim 3, characterized in that: The vertical depth of the mortise and tenon notches (11) is greater than 1 / 2 of the height of the web (9).

5. The mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure according to claim 4, characterized in that: Tenons (12) are provided at both ends of the web (9), and the depth of the mortise and tenon notches (11) near the tenons (12) is greater than the thickness of the flange plate (10).

6. The mortise and tenon type channel steel shear connector for steel-concrete-steel composite wall panel structure according to any one of claims 1 to 5, characterized in that: The opening directions of the inner channel steel (4), the outer notched channel steel (2), and the outer non-notched channel steel (3) are all oriented toward the geometric center position inside the connection frame.

7. The mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure according to claim 6, characterized in that: The joints between the outer notched channel steel (2) and the outer non-notched channel steel (3) are connected by fillet welds.

8. The mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure according to claim 7, characterized in that: The top steel plate (6) and the bottom steel plate (7) have the same structure.

9. The mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure according to claim 7, characterized in that: The top steel plate (6), the bottom steel plate (7) and the connecting frame are provided with bolt holes (13), and the diameter of the bolts (8) is smaller than the diameter of the bolt holes (13).

10. The mortise and tenon type channel steel shear connector of the steel-concrete-steel composite wall panel structure according to claim 1, characterized in that: The inner channel steel (4), the outer notched channel steel (2), and the outer non-notched channel steel (3) are all formed by bending steel plates.

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