Steel structure house wall surface brace connecting structure

Abstract

The utility model discloses a steel structure house wall surface brace connecting structure, and relates to the technical field of constructional engineering. Comprising a purline assembly which comprises a first purline and a second purline which are arranged in parallel; the connecting assembly comprises a connecting piece and a brace; the first end of the first purline and the second end of the second purline are respectively connected with connecting pieces, and the brace is connected between the two connecting pieces; the connecting piece comprises a connecting piece body, a first covered edge and a second covered edge; the first covered edge and the second covered edge are connected to the two sides, in the width direction, of the connecting piece body correspondingly and can be folded inwards along the connecting piece body to form an edge folding structure. The first wrapping edge and the second wrapping edge can enhance the strength of the connecting piece body, so that deformation or bending cannot be generated under the tension effect of the brace in the brace tensioning process, the connecting strength between the connecting piece and the brace is further enhanced, and the connecting strength of the wall face of the steel structure house is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building engineering, specifically relates to a steel structure roof wall surface stay connecting structure. BACKGROUND

[0002] Prefabricated steel structure building has been widely applied in the field of warehouse, factory, supermarket and office building. In the existing prefabricated light steel structure building, the steel structure roof wall surface stay is usually in the form of bent stay at both ends.

[0003] Because the roof wall purlin distance of the building is different and the length of each stay section is different, the angle of the bent stay at both ends needs to be different. Therefore, the stay has a narrow application range, and it is difficult to control the bending angle of the round steel during processing, the processing error probability is large, the processing precision is insufficient, and therefore the galvanized round steel stay cannot be tensioned during on-site installation, thereby affecting the overall stress of the roof wall purlin and leaving a safety hazard to the overall roof wall purlin system of the steel structure building. Moreover, the existing stay is connected to the purlin by additionally setting a connecting structure, but the connecting structure has low strength and is easy to bend or deform under the strong tension of the stay, thereby affecting the strength of the steel structure roof wall surface. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of steel structure roof wall surface stay connecting structure to solve the problems of narrow application range of stay, easy deformation of the connecting structure connected by stay and low strength of steel structure roof wall surface in the existing prefabricated light steel structure.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A kind of steel structure roof wall surface stay connecting structure, comprising:

[0007] The purlin assembly comprises a first purlin and a second purlin arranged in parallel;

[0008] The connecting assembly comprises a connecting piece and a stay; the first end of the first purlin and the second end of the second purlin are respectively connected with a connecting piece, and the stay is connected between the two connecting pieces;

[0009] The connecting piece comprises a connecting piece body, a first edge cover and a second edge cover; the first edge cover and the second edge cover are respectively connected to the two sides of the connecting piece body along the width direction, and the first edge cover and the second edge cover can be folded inward to form a folded edge structure along the connecting piece body.

[0010] The steel structure roof wall surface stay connecting structure of the utility model also has the following additional technical features:

[0011] The connecting piece body comprises a first limb edge, a second limb edge and a third limb edge; the first limb edge and the third limb edge are connected to two sides of the second limb edge, and the first limb edge is arranged at an obtuse angle with the second limb edge, and the third limb edge is vertically distributed with the second limb edge.

[0012] The first limb edge is provided with a first preformed hole, and the first preformed hole is connected with the first purlin through a fastener.

[0013] The third limb edge is provided with a second preformed hole, and the second preformed hole is used for connecting with the bracing bar.

[0014] The first wrapping edge and the second wrapping edge are symmetrical and arranged on two sides of the connecting piece body; the first wrapping edge comprises a first head section, a first middle section and a first tail section which are connected; the first head section is connected to two sides of the first limb edge along the width direction, the first middle section is connected to two sides of the second limb edge along the width direction, and the first tail section is connected to two sides of the third limb edge along the width direction.

[0015] The height of the first head section gradually increases from one side of the first limb edge to one side of the second limb edge, the height of the first middle section is the same from one side of the second limb edge to one side of the third limb edge, and the height of the first tail section gradually decreases from one side of the second limb edge to one side of the third limb edge.

[0016] One end of the bracing bar is fixedly connected with one of the two connecting pieces, and the other end of the bracing bar is threadedly connected with the other one of the two connecting pieces through a fastener.

[0017] The first purlin has a first opening, and the second purlin has a second opening; the first opening of the first purlin is arranged opposite to the second opening of the second purlin.

[0018] The bracing bar is a galvanized round steel with a diameter of not less than 12 mm.

[0019] The connecting piece is a galvanized steel piece with a thickness of not less than 2.5 mm.

[0020] Thanks to the above technical scheme, the application has the following beneficial effects:

[0021] 1. The application relates to a steel structure roof and wall bracing bar connecting structure, which comprises a purlin assembly and a connecting assembly; the purlin assembly comprises first purlins and second purlins which are arranged in parallel; the connecting assembly comprises connecting pieces and a bracing bar; the first purlins and the second purlins are respectively connected with the connecting pieces at the first ends and the second ends; the bracing bar is connected between the two connecting pieces; the connecting piece comprises a connecting piece body, a first wrapping edge and a second wrapping edge; the first wrapping edge and the second wrapping edge are respectively connected to two sides of the connecting piece body along the width direction, and the first wrapping edge and the second wrapping edge can be folded inward along the connecting piece body to form a folded edge structure.

[0022] 2. The purlin assembly of the present application comprises a first purlin and a second purlin arranged in parallel, a connecting piece is connected to the first purlin and the second purlin respectively, the connecting pieces are distributed in cross; a bracing piece is connected between the two connecting pieces, the bracing piece is elastic, when the bracing piece is tensioned, it can realize the fastening between the first purlin and the second purlin, thereby improving the connecting strength of the first purlin and the second purlin; moreover, the connecting piece is not the traditional connecting piece, it has a connecting piece body and a first wrapping edge and a second wrapping edge located on both sides of the connecting piece body, the first wrapping edge and the second wrapping edge can be folded inward relative to the connecting piece body to form a folded edge structure, thereby further enhancing the strength of the connecting piece body itself, so that it will not be deformed or bent under the tension of the bracing piece during the tensioning process of the bracing piece, further enhancing the connecting strength between the connecting piece and the bracing piece, thereby improving the connecting strength of the steel structure roof and wall surface. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application. In the drawings:

[0024] Figure 1 It is a first angle structure diagram of the connecting piece of the steel structure roof and wall surface bracing piece connecting structure according to an embodiment of the present application;

[0025] Figure 2 It is a second angle structure diagram of the connecting piece of the steel structure roof and wall surface bracing piece connecting structure according to an embodiment of the present application;

[0026] Figure 3 It is a third angle structure diagram of the connecting piece of the steel structure roof and wall surface bracing piece connecting structure according to an embodiment of the present application;

[0027] Figure 4 It is a structure diagram of the connecting piece of the steel structure roof and wall surface bracing piece connecting structure according to an embodiment of the present application without connecting the bracing piece;

[0028] Figure 5 It is an assembly diagram of one end of the bracing piece of the steel structure roof and wall surface bracing piece connecting structure and one of the connecting pieces according to an embodiment of the present application;

[0029] Figure 6 It is an assembly diagram of the other end of the bracing piece of the steel structure roof and wall surface bracing piece connecting structure and the other connecting piece according to an embodiment of the present application;

[0030] Figure 7Figure 1 is a structural schematic diagram of a bracing bar and two connecting pieces assembled together according to an embodiment of the steel structure roof and wall bracing bar connecting structure of the present application;

[0031] Figure 8 Figure 2 is a sectional schematic diagram of a first purline according to an embodiment of the steel structure roof and wall bracing bar connecting structure of the present application;

[0032] Figure 9 Figure 3 is a sectional schematic diagram of a second purline according to an embodiment of the steel structure roof and wall bracing bar connecting structure of the present application;

[0033] Figure 10 Figure 4 is a structural schematic diagram of one end of a bracing bar and one connecting piece assembled together according to another embodiment of the steel structure roof and wall bracing bar connecting structure of the present application;

[0034] Figure 11 Figure 5 is a structural schematic diagram of a bracing bar and two connecting pieces assembled together according to another embodiment of the steel structure roof and wall bracing bar connecting structure of the present application;

[0035] In the drawings,

[0036] 1, purline assembly; 11, first purline; 12, second purline; 2, bolt; 3, connecting piece; 31, connecting piece body; 311, first limb edge; 312, second limb edge; 313, third limb edge; 32, first edge covering; 33, second edge covering; 4, bracing bar; 5, nut; 6, gasket; 7, first prefabricated hole; 8, second prefabricated hole. DETAILED DESCRIPTION

[0037] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0038] In addition, in the description of the present application, it is understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the present application.

[0039] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "embodiment", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0041] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0042] The utility model relates to a steel structure roof wall bracing connection structure, such as Figures 1-11 As shown, it includes: a purlin assembly 1 including a first purlin 11 and a second purlin 12 arranged in parallel; a connecting assembly including a connector 3 and a tension rod 4; the first end of the first purlin 11 and the second end of the second purlin 12 are respectively connected to the connector 3, and the tension rod 4 is connected between the two connectors 3; the connector 3 includes a connector body 31, a first edge 32 and a second edge 33; the first edge 32 and the second edge 33 are respectively connected to both sides of the connector body 31 in the width direction, and the first edge 32 and the second edge 33 can be folded inward along the connector body 31 to form a folded edge structure.

[0043] The purlin assembly 1 of the present application includes a first purlin 11 and a second purlin 12 arranged in parallel, and the first end of the first purlin 11 is located at Figure 4 The left end shown in FIG, the second end of the first purlin 11 is located as shown in FIG. Figure 4 The first end of the second purlin 12 is located as shown in the right end; Figure 4 The left end shown in FIG, the second end of the second purlin 12 is located as shown in FIG. Figure 4The first end of the first purlin 11 is provided with a first through hole, and the second end of the second purlin 12 is provided with a second through hole. The bolt 2 is inserted through the first through hole and the second through hole, and is locked and connected to the connecting piece 3 through the nut 5, so that the connecting piece 3 is connected to the first end of the first purlin 11. The bolt 2 is inserted through the second through hole and is locked and connected to another connecting piece 3 through the nut 5, so that the first purlin 11 and the second purlin 12 are respectively connected with the connecting pieces 3, and the connecting pieces 3 are distributed in cross. The connecting piece 3 is located between the two connecting pieces 3 and is connected with the brace 4. The brace 4 is elastic, and when the brace 4 is tensioned, the first purlin 11 and the second purlin 12 can be fastened, so as to improve the connection strength of the first purlin 11 and the second purlin 12.

[0044] Moreover, the connecting piece 3 is not a traditional connecting piece 3, but has a connecting piece body 31 and first and second edge coverings 32 and 33 located on both sides of the connecting piece body 31. The first and second edge coverings 32 and 33 can be folded inward relative to the connecting piece body 31 to form a folded edge structure, thereby further enhancing the strength of the connecting piece body 31 itself, so that the connecting piece 3 will not be deformed or bent under the tension of the brace 4 during tensioning of the brace 4, further enhancing the connection strength between the connecting piece 3 and the brace 4, thereby improving the connection strength of the steel structure roof and wall surface.

[0045] As a preferred embodiment, the connecting piece body 31 includes first, second and third limb edges 311, 312 and 313. The first and third limb edges 311 and 313 are connected to the two sides of the second limb edge 312, and the first limb edge 311 is arranged at an obtuse angle with the second limb edge 312, and the third limb edge 313 is perpendicular to the second limb edge 312.

[0046] As shown in Figures 1-3 The connecting piece body 31 includes first, second and third limb edges 311, 312 and 313, the included angle between the first and second limb edges 311 and 312 is obtuse, and the included angle between the second and third limb edges 312 and 313 is 90°. The first, second and third limb edges 311, 312 and 313 are respectively in planar structure, and are connected to form a folded line segment structure. The first limb edge 311 is used for connecting with the first purlin 11 or the second purlin 12, and the third limb edge 313 is used for connecting with the brace 4.

[0047] Further, the first limb edge 311 is provided with a first preformed hole 7, and the first preformed hole 7 is connected with the first purlin 11 through a fastener.

[0048] As shown in Figures 1-3As shown, the first limb 311 is provided with a first prefabricated hole 7, and the first prefabricated hole 7 has an internal thread. Figure 4 As shown, the first limb 311 is placed horizontally, the third limb 313 is placed downward, the first prefabricated hole 7 of the first limb 311 corresponds to the first through hole of the first purlin 11, the bolt 2 is passed through the first through hole and the first prefabricated hole 7 of the first limb 311, and then the nut 5 is passed through the bolt 2, and the first limb 311 is fixedly connected to the first end of the first purlin 11 by locking the nut 5 with the bolt 2; then the first limb 311 of the other connecting member 3 is placed horizontally, the third limb 313 is placed upward, the first prefabricated hole 7 of the first limb 311 corresponds to the second through hole of the second purlin 12, the bolt 2 is passed through the second through hole and the first prefabricated hole 7 of the first limb 311, and then the nut 5 is passed through the bolt 2, and the first limb 311 of the other connecting member 3 is fixedly connected to the second end of the second purlin 12 by locking the nut 5 with the bolt 2.

[0049] Furthermore, the third limb 313 is provided with a second prefabricated hole 8 , and the second prefabricated hole 8 is used to connect with the brace 4 .

[0050] Preferably, a first prefabricated hole 7 of 14 mm is reserved in the first limb 311, and a second prefabricated hole 8 of 14 mm is reserved in the third limb 313, so as to facilitate adjustment of the angle of the brace 4 when installing the brace 4 on site and ensure that the brace 4 is fully tensioned.

[0051] like Figures 1-3 As shown, the second prefabricated hole 8 provided on the third limb 313 is used to connect with the tie rod 4; one end of the tie rod 4 is fixedly connected to one of the two connectors 3, and the other end of the tie rod 4 is threadedly connected to the other of the two connectors 3 via a fastener. Specifically, in this application, the connection method between the tie rod 4 and the third limb 313 can adopt any of the following embodiments:

[0052] Implementation method 1: Figures 10-11 As shown, one end of the brace 4 is fixedly connected to the connector 3 connected to the first end of the first purlin 11, and the other end of the brace 4 is connected to the connector 3 connected to the second end of the second purlin 12 via a bolt 2. Thus, during on-site installation, only one end of the brace 4 needs to be assembled with the connector 3, while the other end of the brace 4 is fixedly formed with the other connector 3, facilitating quick on-site assembly.

[0053] The end of the tie rod 4 connected to the first end of the first purlin 11 can be welded with a nut 5, and the end of the tie rod 4 with the nut 5 can be welded to the connector 3 connected to the first end of the first purlin 11, so that when the connector 3 with the tie rod 4 is connected to the first end of the first purlin 11, the connector 3 without the tie rod 4 is connected to the second end of the second purlin 12, and then the end of the tie rod 4 not welded to the connector 3 is passed through the connector 3 connected to the second end of the second purlin 12, thereby realizing the connection of the connection assembly.

[0054] Embodiment 2: The ends of the brace 4 are connected to the connector 3 connected to the first end of the first purlin 11 and the connector 3 connected to the second end of the second purlin 12 via bolts 2. This allows both ends of the brace 4 to be detachably connected to the connector 3, facilitating adjustment of the length of the brace 4.

[0055] like Figures 5-7 As shown in FIG. 1 , the structure diagram of the pull-down bar 4 and the corresponding connecting member 3 in this embodiment is detachably connected. For the convenience of description, the following explanation is made according to the orientation of the diagram. Figure 5 As shown, the top end of the pull rod 4 is first placed in the second prefabricated hole 8 of the connecting piece 3 connected to the first end of the first purlin 11, and the bottom end of the pull rod 4 is placed in the second prefabricated hole 8 of the connecting piece 3 connected to the second end of the second purlin 12. The top end and the bottom end of the pull rod 4 are respectively provided with external threads, and the top end of the pull rod 4 passes through the second prefabricated hole 8. The nut 5 is passed through the top end of the pull rod 4 to realize the connection between the top end of the pull rod 4 and the connecting piece 3. The bottom end of the pull rod 4 passes through the second prefabricated hole 8 of another connecting piece 3. The nut 5 is passed through the bottom end of the pull rod 4 to realize the connection between the bottom end of the pull rod 4 and the connecting piece 3. By adjusting the locking position between the nut 5 and the external thread at the end of the pull rod 4, the tensioning degree of the pull rod 4 can be adjusted. When the pull rod 4 is in a tensioned state, the locking connection between the first purlin 11 and the second purlin 12 can be realized.

[0056] Embodiment 3: One end of the brace 4 is fixedly connected to the connecting piece 3 connected to the second end of the second purlin 12 , and the other end of the brace 4 is connected to the connecting piece 3 connected to the first end of the first purlin 11 via a bolt 2 .

[0057] As a preferred embodiment, the first edging 32 and the second edging 33 have the same structure and are symmetrically arranged on both sides of the connector body 31; the first edging 32 includes a first head section, a first middle section and a first tail section that are connected to each other; the first head section is connected to both sides of the first limb 311 along the width direction, the first middle section is connected to both sides of the second limb 312 along the width direction, and the first tail section is connected to both sides of the third limb 313 along the width direction.

[0058] likeFigure 3 As shown, the first wrapping edge 32 and the second wrapping edge 33 serve as the reinforcing rib of the connecting piece 3, which can further enhance the connecting strength of the connecting piece 3, thereby avoiding the phenomenon of deformation or bending of the connecting piece 3 under the pulling force of the stay 4 after the connecting piece 3 is connected with the stay 4 without the reinforcing rib. In order to adapt to the fold line segment structure of the connecting piece body 31 itself, the structure of the first wrapping edge 32 and the second wrapping edge 33 is designed as a multi-segment structure, and the structure of the first wrapping edge 32 and the second wrapping edge 33 is the same, so the first wrapping edge 32 is taken as an example for description. The first wrapping edge 32 comprises a first head segment, a first middle segment and a first tail segment connected in sequence, the first head segment and the first tail segment are connected to the two sides of the first middle segment, the first head segment is connected to the first limb edge 311, the first middle segment is connected to the second limb edge 312, and the first tail segment is connected to the third limb edge 313.

[0059] Therefore, the second wrapping edge 33 comprises a second head segment, a second middle segment and a second tail segment connected in sequence, the second head segment and the second tail segment are connected to the two sides of the second middle segment, the second head segment is connected to the first limb edge 311, the second middle segment is connected to the second limb edge 312, and the second tail segment is connected to the third limb edge 313. The first head segment and the second head segment have the same structure and are respectively connected to the two sides of the connecting piece body 31 along the width direction; the first middle segment and the second middle segment have the same structure and are respectively connected to the two sides of the connecting piece body 31 along the width direction; and the first tail segment and the second tail segment have the same structure and are respectively connected to the two sides of the connecting piece body 31 along the width direction.

[0060] Further, the height of the first head segment gradually increases from one side of the first limb edge 311 to one side of the second limb edge 312, the height of the first middle segment is the same from one side of the second limb edge 312 to one side of the third limb edge 313, and the height of the first tail segment gradually decreases from the second limb edge 312 to one side of the third limb edge 313.

[0061] Since the first limb edge 311 and the second limb edge 312 are arranged at an obtuse angle, the height of the first head segment gradually increases from one side of the first limb edge 311 to one side of the second limb edge 312. Since the third limb edge 313 and the second limb edge 312 are arranged at a right angle, the height of the first tail segment gradually decreases from the second limb edge 312 to one side of the third limb edge 313.

[0062] As a preferred embodiment, the first purlin 11 has a first opening, and the second purlin 12 has a second opening, and the first opening of the first purlin 11 and the second opening of the second purlin 12 are arranged back to back.

[0063] As a preferred embodiment, the stay 4 adopts a galvanized round steel with a diameter of not less than 12 mm.

[0064] Preferably, the bracing 4 adopts a galvanized round steel with a diameter of 12 mm, and instead of the traditional form of the bracing 4 with the two ends being bent, the bracing 4 is in a straight line form, which not only simplifies the processing technology and improves the production efficiency, but also avoids the problems of the traditional form, such as the different bending angles, the various processing types, the large processing error, the more production technology and the difficult processing and manufacturing.

[0065] As a preferred embodiment, the connecting piece 3 adopts a galvanized steel piece with a thickness of not less than 2.5 mm.

[0066] The connecting piece 3 of the present application adopts a 3D structure, and the raw material is the same as the purline of the wall surface, which improves the economic benefit. Preferably, the steel material of the connecting piece 3 has a yield strength of not less than 350 Mpa, a surface with a hot galvanizing layer, and a galvanizing amount of the steel material of not less than 275 g / M 2 2.5 mm in thickness.

[0067] The bolt 2 mentioned in the present application adopts a galvanized hexagonal head bolt with a diameter of 12 mm; the nut 5 is a M12 galvanized nut; and the gasket 6 is further connected between the second prefabricated hole 8 and the nut 5, and the gasket 6 adopts a M12 ordinary steel gasket.

[0068] The parts not mentioned in the present application can be realized by using or referring to the existing technology.

[0069] Each embodiment in the present specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the differences from other embodiments.

[0070] The above only describes the embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A steel structure wall surface bracing connection structure, characterized by, The utility model relates to a purlin assembly and a connecting assembly thereof. The purlin assembly comprises a first purlin and a second purlin arranged in parallel. The connecting assembly comprises a connecting piece and a brace. The first end of the first purlin and the second end of the second purlin are respectively connected with a connecting piece.

2. The steel structure wall surface stay connecting structure according to claim 1, characterized in that, The brace is connected between the two connecting pieces.

3. The steel structure wall surface stay connecting structure according to claim 2, characterized in that, The connecting piece comprises a connecting piece body, a first wrapping edge and a second wrapping edge.

4. The steel structure wall surface stay connecting structure according to claim 2, characterized in that, The first wrapping edge and the second wrapping edge are respectively connected to the two sides of the connecting piece body along the width direction.

5. The steel structure wall surface stay connecting structure according to claim 2, characterized in that, The first wrapping edge and the second wrapping edge can be folded inward to form a folding edge structure along the connecting piece body.

6. The steel structure wall surface stay connecting structure according to claim 5, characterized in that, The connecting piece body comprises a first limb edge, a second limb edge and a third limb edge.

7. The steel structure wall surface stay connecting structure according to claim 1, characterized in that, The first limb edge and the third limb edge are connected to the two sides of the second limb edge.

8. The steel structure wall surface bracing connection structure according to claim 1, characterized in that, The first limb edge and the second limb edge are arranged at an obtuse angle.

9. The steel structure wall surface stay connecting structure according to claim 1, characterized in that, The third limb edge is perpendicular to the second limb edge.

10. The steel structure wall surface bracing connection structure according to claim 1, characterized in that, The first limb edge is provided with a first preformed hole. The first preformed hole is connected with the first purlin through a fastener. The third limb edge is provided with a second preformed hole. The first wrapping edge and the second wrapping edge are symmetrically arranged on the two sides of the connecting piece body. The first wrapping edge comprises a first head section, a first middle section and a first tail section connected with each other. The first head section is connected to the two sides of the first limb edge along the width direction. The first middle section is connected to the two sides of the second limb edge along the width direction. The first tail section is connected to the two sides of the third limb edge along the width direction. The height of the first head section gradually increases from one side of the first limb edge to one side of the second limb edge. The height of the first middle section is the same from one side of the second limb edge to one side of the third limb edge. The height of the first tail section gradually decreases from one side of the second limb edge to one side of the third limb edge. One end of the brace is fixedly connected with one of the two connecting pieces. The other end of the brace is threadedly connected with the other one of the two connecting pieces through a fastener. The first purlin has a first opening. The second purlin has a second opening. The first opening of the first purlin and the second opening of the second purlin are arranged in opposite directions. The diameter of the galvanized round steel used for the brace is not less than 12 mm. The thickness of the galvanized steel used for the connecting piece is not less than 2.5 mm.

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