Steel truss connecting structure

Abstract

The utility model relates to the technical field of building construction, in particular to a steel truss connecting structure which comprises a first connecting assembly and a second connecting assembly. The first connecting assembly comprises a vertical rod and two connecting rods; the upper ends of the vertical rods are provided with limiting holes allowing the steel pull rods to penetrate through, and the lower ends of the vertical rods are fixedly connected to an upper chord of a truss body. One ends of the two connecting rods are connected with the middle of the vertical rod and located on the two sides of the vertical rod respectively, and the other ends of the two connecting rods are used for connecting upper chords of the truss body; the second connecting assembly comprises a cross rod, an upper connecting piece and a lower connecting piece; the transverse rod is mounted on a lower chord of the truss body; the upper connecting pieces are arranged at the tops of the transverse rods and are used for connecting all web members of the truss body; one end, far away from the lower chord member, of the lower connecting piece is used for being connected with the inclined strut. The utility model can be matched with the structure of the truss body to connect the truss body and share the part of the load of the truss body, thereby improving the overall stability.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a steel truss connection structure. Background Art

[0002] Steel truss is a truss structure made of steel. It is commonly used in buildings, bridges and other large structures to provide strong support and stability. Steel truss has high strength, durability and corrosion resistance, so it is widely used in many engineering projects.

[0003] At present, the existing steel trusses mainly bear axial tension or pressure through truss rods, and the truss span is related to the truss height, which makes it widely used in belt conveyor systems (such as pipe belt conveyors, etc.). In the actual manufacturing and use of steel trusses, due to reasons such as site / project volume / process requirements, steel trusses are often required to have a larger span when the truss height is constant. However, due to the structural characteristics of the existing steel trusses themselves (such as the strength of the truss rods, etc.), it is impossible to design a larger span overhead. Moreover, due to the small span of the existing steel trusses, more structural columns need to be built, resulting in a higher overall project cost.

[0004] Therefore, there is a patent with application number CN201521091759.1, which discloses a temporary support frame for the segmented installation of a high-position steel truss. By setting a reaction support point at the cantilever end of the segmented truss through an inclined steel pipe support rod, the bending moment load at the cantilever end can be offset, thereby avoiding deformation of the truss due to excessive cantilever bending moment, and reducing the shear load at the connection node between the truss and the concrete column, and effectively protecting the connection node. There is also a patent with application number CN201520859803.2, which discloses a steel truss and a belt conveyor system. By setting a tension member between the support assembly and the truss body, and using the tension member to offset part of the stress on the truss body, the tension member can share the load of the truss body, thereby improving the bearing capacity of the tension member and increasing the span of the steel truss.

[0005] Although the above patent can improve the bearing capacity of the components by adding inclined steel tube support rods or tension members, thereby increasing the span of the steel truss, since the inclined steel tube support rods or tension members are connected to the steel truss by conventional methods such as welding, riveting or bolts, they cannot be well integrated with the structure of the steel truss, resulting in insufficient overall stability. Utility Model Content

[0006] In view of this, an object of the present invention is to provide a steel truss connection structure that can cooperate with the structure of the truss body to connect the truss body and share the load of the truss body, thereby improving the overall stability.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A steel truss connection structure, comprising a first connection assembly for being arranged on the top of a truss body and a second connection assembly for being arranged on the bottom of the truss body;

[0009] The first connecting assembly includes a vertical rod and two connecting rods; the upper end of the vertical rod is provided with a limiting hole for the steel pull rod to pass through, and the lower end of the vertical rod is used to be fixedly connected to the upper chord rod of the truss body; one end of the two connecting rods is connected to the middle of the vertical rod and is respectively located on both sides of the vertical rod, and the other ends of the two connecting rods are used to connect to the upper chord rod of the truss body;

[0010] The second connecting component includes a cross bar, an upper connecting piece and a lower connecting piece; the cross bar is installed on the lower chord of the truss body; the upper connecting piece is arranged at the top of the cross bar and is used to connect the webs of the truss body; the lower connecting piece is arranged at the bottom of the cross bar, and the end of the lower connecting piece away from the lower chord is used to connect the diagonal brace.

[0011] As an optional solution, the two connecting rods are rotatably connected to the vertical rod via a composite hinge.

[0012] As an optional solution, the upper connecting member includes a main rod and two support rods, one end of the main rod is vertically connected to the middle of the cross rod, and the other end of the main rod is used to connect the vertical web rod; one end of the two support rods is connected to the middle of the cross rod and is respectively located on both sides of the main rod, and the other end of the two support rods is used to connect the diagonal web rod.

[0013] As an optional solution, arc-shaped reinforcement plates are fixedly sleeved on both sides of the cross bar and the vertical bar.

[0014] As an optional solution, the lower connecting member is inclined outwardly and forms an angle of 15° with the cross bar.

[0015] As an optional solution, flange joints are provided at both ends of the cross bar and the vertical bar.

[0016] As an optional solution, a traction ear is provided on the upper surface of the flange joint at the upper end of the vertical rod, and the limiting hole is penetrated through the traction ear.

[0017] As an optional solution, the vertical rod, the upper connecting member and the lower connecting member are in corresponding upper and lower positions.

[0018] Due to the adoption of the above technical solution, the utility model will have the following beneficial effects:

[0019] The utility model provides a steel truss connection structure, which, by setting a first connection component and a second connection component, allows the steel tension rod that shares the load of the truss body to be connected to the upper chord through the vertical rod and the connecting rods on both sides of the vertical rod. Similarly, the diagonal brace that shares the load of the truss body can be connected to the lower chord and each web member through the lower connecting piece, the cross rod and the upper connecting piece. Compared with the existing conventional connection methods such as welding, riveting or bolts, this connection method combined with the truss body structure further improves the overall stability of the steel truss. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a planar structural diagram of the steel truss connection structure in the use state according to the embodiment of the utility model;

[0022] Figure 2 for Figure 1 A three-dimensional diagram of a first connection assembly of a steel truss connection structure according to an embodiment;

[0023] Figure 3 for Figure 1 A perspective view of a second connection assembly of the steel truss connection structure according to an embodiment.

[0024] Figure numerals: 1. first connecting component; 11. vertical rod; 12. connecting rod; 13. traction ear; 14. limiting hole; 2. second connecting component; 21. cross bar; 22. upper connecting piece; 221. main rod; 222. support rod; 23. lower connecting piece; 231. reinforcement rib; 3. truss body; 31. upper chord; 32. lower chord; 331. vertical web member; 332. diagonal web member; 34. diagonal brace; 4. reinforcement plate; 5. flange joint; 6. support pile; 61. bracket; 62. steel pull rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical" and "

[0027] The directions or positional relationships indicated by ", "horizontal", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Please refer to Figure 1-3 In one embodiment of a steel truss connection structure of the utility model, the steel truss connection structure includes a first connection component 1 for being arranged on the top of the truss body 3 and a second connection component 2 for being arranged on the bottom of the truss body 3;

[0030] The first connection assembly 1 includes a vertical rod 11 and two connecting rods 12; the upper end of the vertical rod 11 is provided with a limiting hole 14 for the steel tie rod 62 to pass through, and the lower end of the vertical rod 11 is used to be fixedly connected to the upper chord 31 of the truss body 3; one end of the two connecting rods 12 is connected to the middle of the vertical rod 11 and is respectively located on both sides of the vertical rod 11, and the other ends of the two connecting rods 12 are used to connect the upper chord 31 of the truss body 3; the lower end of the vertical rod 11 and the two connecting rods 12 are connected to the upper chord 31 by adding an extension rod. Since the two ends of the steel tie rod 62 are respectively connected to the support piles 6, part of the stress on the truss upper chord 31 can be offset, so that the steel tie rod 62 can share the load of the truss body 3, improve the bearing capacity of the steel tie rod 62, and then increase the span of the steel truss.

[0031] Among them, the second connecting component 2 includes a cross bar 21, an upper connecting member 22 and a lower connecting member 23; the cross bar 21 is used to be installed on the lower chord 32 of the truss body 3; the upper connecting member 22 is arranged at the top of the cross bar 21, and is used to connect the web members of the truss body 3; specifically, the upper connecting member 22 can be arranged to include a main rod 221 and two support rods 222, one end of the main rod 221 is vertically connected to the middle of the cross bar 21, and the other end of the main rod 221 is used to connect the vertical web member 331; one end of the two support rods 222 is connected to the middle of the cross bar 21 and is respectively located on both sides of the main rod 221, and the other end of the two support rods 222 is used to connect the diagonal web member 332. The lower connecting member 23 is arranged at the bottom of the cross bar 21. Specifically, the lower connecting member 23 can be inclined outward and form an angle of 15° with the cross bar 21. The end of the lower connecting member 23 away from the lower chord 32 is used to connect the diagonal brace 34, and the end of the diagonal brace 34 away from the lower connecting member 23 is fixedly connected to the bracket 61 of the supporting pile 6, so that the cross bar 21 forms a reaction force support point, thereby offsetting the bending moment load of the lower chord 32, thereby avoiding deformation of the truss body 3 due to excessive cantilever bending moment.

[0032] In this embodiment, since the steel tie rod 62 that shares the load of the truss body 3 is connected to the upper chord 31 through the first connecting assembly 1, and the diagonal brace 34 that also shares the load of the truss body 3 is connected to the lower chord 32 and each web member through the second connecting assembly 2, this connection method combined with the structure of the truss body 3 further improves the overall stability of the steel truss.

[0033] Specifically, the two connecting rods 12 can be arranged to be rotatably connected to the vertical rod 11 through a composite hinge, so that the positions of the two connecting rods 12 connected to the upper chord rod 31 can be adjusted as needed to match truss bodies 3 of different sizes, thereby improving applicability and versatility.

[0034] Furthermore, a semicircular reinforcing plate 4 with a thickness of 8 mm can be welded around both sides of the cross bar 21 and the vertical bar 11. Similarly, a reinforcing rib 231 can be welded at the obtuse angle between the lower connecting member 23 and the cross bar 21 to improve the stability of the first connecting component 1 and the second connecting component 2.

[0035] Specifically, flange joints 5 can be provided at both ends of the crossbar 21 and the vertical bar 11 to improve the stability of the crossbar 21 connecting the lower chord and the vertical bar 11 connecting the upper chord 31. Similarly, flange joints 5 can be provided at one end of the main bar 221 away from the crossbar 21 and one end of the lower connecting member 23 away from the crossbar 21 to improve the stability of the main bar 221 connecting the vertical web member 331 and the lower connecting member 23 connecting the diagonal brace 34. Correspondingly, a traction ear 13 is welded on the upper surface of the flange joint 5 at the upper end of the vertical bar 11, and a limiting hole 14 is provided through the traction ear 13.

[0036] On the basis of the above embodiment, the vertical rod 11, the upper connecting member 22 and the lower connecting member 23 can be arranged to correspond to each other in upper and lower positions. It is best that the vertical rod 11, the main rod 221 and the lower connecting member 23 correspond to each other in upper and lower positions. In this way, the force exerted by the steel tension rod 62 on the truss body 3 and the force exerted by the diagonal brace 34 on the truss body 3 can be balanced, thereby improving the stability of the truss body 3.

[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. Steel truss connection structure, characterized in that: It comprises a first connection component (1) for being arranged on the top of a truss body (3) and a second connection component (2) for being arranged on the bottom of the truss body (3); The first connecting assembly (1) comprises a vertical rod (11) and two connecting rods (12); a limiting hole (14) for a steel pull rod (62) to pass through is provided at the upper end of the vertical rod (11), and the lower end of the vertical rod (11) is used for being fixedly connected to the upper chord (31) of the truss body (3); one end of the two connecting rods (12) is connected to the middle of the vertical rod (11) and is respectively located on both sides of the vertical rod (11), and the other end of the two connecting rods (12) is used for connecting to the upper chord (31) of the truss body (3); The second connecting component (2) comprises a cross bar (21), an upper connecting piece (22) and a lower connecting piece (23); the cross bar (21) is used to be installed on the lower chord (32) of the truss body (3); the upper connecting piece (22) is arranged at the top of the cross bar (21) and is used to connect the webs of the truss body (3); the lower connecting piece (23) is arranged at the bottom of the cross bar (21), and the end of the lower connecting piece (23) away from the lower chord (32) is used to connect the diagonal brace (34).

2. The steel truss connection structure according to claim 1, characterized in that: The two connecting rods (12) are rotatably connected to the vertical rod (11) via a composite hinge.

3. The steel truss connection structure according to claim 1, characterized in that: The upper connecting member (22) comprises a main rod (221) and two supporting rods (222); one end of the main rod (221) is vertically connected to the middle of the cross rod (21), and the other end of the main rod (221) is used to connect to the vertical web rod (331); one end of the two supporting rods (222) is connected to the middle of the cross rod (21) and is respectively located on both sides of the main rod (221), and the other end of the two supporting rods (222) is used to connect to the diagonal web rod (332).

4. The steel truss connection structure according to claim 1, characterized in that: Arc-shaped reinforcing plates (4) are respectively fixedly sleeved on both sides of the cross bar (21) and the vertical bar (11).

5. The steel truss connection structure according to claim 1, characterized in that: The lower connecting member (23) is inclined outwards and forms an angle of 15° with the cross bar (21).

6. The steel truss connection structure according to claim 1, characterized in that: Both ends of the cross bar (21) and the vertical bar (11) are provided with flange joints (5).

7. The steel truss connection structure according to claim 6, characterized in that: A traction ear (13) is provided on the upper surface of the flange joint (5) at the upper end of the vertical rod (11), and the limiting hole (14) is penetrated and opened on the traction ear (13).

8. The steel truss connection structure according to claim 1, characterized in that: The vertical rod (11), the upper connecting member (22) and the lower connecting member (23) are located in corresponding upper and lower positions.

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