Trussed girder connecting structure capable of achieving rapid assembly

Abstract

The utility model discloses a truss girder connecting structure capable of realizing quick assembly, belongs to the field of assembly type steel structures, and solves the problems of difficulty in welding, poor welding quality and low welding efficiency in truss girder steel pipe assembly. The connecting structure comprises chord member joints, web member joints, chord member connecting structures and web member connecting structures, the chord member connecting structure comprises positioning steel plates, connecting steel plates, chord member joint inlaying section side plates and chord member joint inlaying section top plates, the positioning steel plates are welded to the lower surfaces of the chord member joint top plates and the upper surfaces of chord member joint bottom plates respectively, and the positioning steel plates at the two opposite chord member joints are connected through the connecting steel plates. The two opposite chord member joint bottom plates are welded and connected, the chord member joint inlaying section side plates are welded between the two opposite chord member joint side parts, and the chord member joint inlaying section top plates are welded between the two opposite chord member joint tops. The truss girder section assembling rod piece is reasonable in design and simple in structure, and the assembling quality and reliability of the truss girder section assembling rod piece can be improved.

Description

Technical Field

[0001] The utility model belongs to the field of assembled steel structures, and in particular relates to a truss beam connection structure capable of realizing rapid assembly. Background Art

[0002] In order to adapt to the trend of industrialized green construction and realize rapid on-site assembly of trusses, truss segments are usually prefabricated in the factory and then transported to the construction site for assembly. The connection reliability and welding quality of on-site rod splicing joints directly affect the assembly quality and efficiency of the truss segments.

[0003] The connection quality of truss steel pipe splicing joints is limited by conditions such as high-altitude positioning and on-site welding. Since trusses are generally spliced ​​at high altitudes, it is difficult to accurately position the truss members at high altitudes, which leads to problems such as welding difficulties and poor welding quality. At the same time, due to the poor accuracy of high-altitude positioning, the reliability of on-site welding is greatly reduced, and the welding efficiency is also greatly reduced. Utility Model Content

[0004] The utility model aims to provide a truss connection structure which can realize rapid assembly, so as to solve the problems of difficult welding of truss steel pipe splicing, poor welding quality and low welding efficiency.

[0005] The technical scheme of the utility model is: a truss beam connection structure capable of realizing rapid assembly, comprising a chord joint and a web joint, wherein the chord joint is composed of a chord joint top plate, a chord joint bottom plate and a chord joint side plate, and also comprises a chord connection structure and a web connection structure; the chord connection structure comprises a positioning steel plate, a connecting steel plate, a chord joint patching section side plate and a chord joint patching section top plate, positioning steel plates are respectively welded on the lower surface of the chord joint top plate and the upper surface of the chord joint bottom plate, a chord joint is extended out of one end of the positioning steel plate, the positioning steel plates at two opposite chord joints are connected by a connecting steel plate, two opposite chord joint bottom plates are welded, the chord joint patching section side plate is welded between two opposite chord joint side portions, and the chord joint patching section top plate is welded between two opposite chord joint tops.

[0006] As a further improvement of the utility model, a plurality of stiffening steel plates are respectively provided between the positioning steel plate and the top plate of the chord joint and between the positioning steel plate and the bottom plate of the chord joint.

[0007] As a further improvement of the utility model, a plurality of first connecting holes are provided at one end of the positioning steel plate extending out of the chord joint, a plurality of second connecting holes are provided on the connecting steel plate, and the first connecting holes and the second connecting holes are connected by connecting bolts.

[0008] As a further improvement of the utility model, connecting steel plates are provided on both sides of the positioning steel plate.

[0009] As a further improvement of the present invention, the web connecting structure includes a connecting web and an outer steel plate, the connecting web is welded between two opposite web joints, and the outer steel plate is welded around the connection between the connecting web and the web joint.

[0010] The beneficial effects of the utility model are:

[0011] 1. The utility model has reasonable design and simple structure, and can improve the assembly quality and reliability of truss segment assembly rods, thereby improving the industrial construction efficiency of trusses.

[0012] 2. Compared with the traditional welded joint, the chord connection structure in the utility model first spatially positions the pre-joined chord joint by connecting the positioning steel plate and the connecting steel plate, and then welds the side plates of the chord joint patching section and the top plate of the chord joint patching section, thereby improving the joint welding quality and welding efficiency by improving the on-site welding conditions.

[0013] 3. Compared with the traditional bolted joint, the chord connection structure of the utility model has a combined structure of built-in connecting bolts and outer surface welds, which makes the connection joint simple and beautiful, and the combined structure further improves the reliability and redundancy of the connection.

[0014] 4. The web connecting structure of the utility model is welded with an outer steel plate at the connection between the web and the web joint, so as to wrap the web splicing joint inside, thereby further improving the connection strength and rigidity of the web splicing joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a front view of the chord rod connection structure of the utility model;

[0017] Figure 3 It is a side view of the chord rod connection structure of the utility model;

[0018] Figure 4 It is a structural schematic diagram of connecting steel plates in the utility model;

[0019] Figure 5 It is a schematic diagram of the connection of the stiffening steel plate in the utility model;

[0020] Figure 6 This is a front view of the middle belly rod connection structure of the utility model;

[0021] Figure 7 It is a side view of the middle belly rod connection structure of the utility model.

[0022] In the figure: 1- chord joint top plate; 2- chord joint side plate; 3- chord joint bottom plate; 4- positioning steel plate; 5- stiffening steel plate; 6- connecting steel plate; 7- connecting bolts; 8- chord joint patching section side plate; 9- chord joint patching section top plate; 10- connecting web member; 11- outer steel plate; 12- chord joint; 13- web member joint; 14- chord connection structure; 15- web member connection structure; 16- first connecting hole; 17- second connecting hole. DETAILED DESCRIPTION

[0023] The utility model is described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-7 As shown, a truss connection structure that can be quickly assembled includes a chord joint 12 and a web joint 13. The chord joint 12 is composed of a chord joint top plate 1, a chord joint bottom plate 3 and a chord joint side plate 2, and also includes a chord connection structure 14 and a web connection structure 15; the chord connection structure 14 includes a positioning steel plate 4, a connecting steel plate 6, a chord joint patching section side plate 8 and a chord joint patching section top plate 9, and the positioning steel plates 4 are respectively welded to the lower surface of the chord joint top plate 1 and the upper surface of the chord joint bottom plate 3. The chord joint 12 is extended from one end of the positioning steel plate 4. The positioning steel plates 4 at two opposite chord joints 12 are connected by the connecting steel plate 6, and the two opposite chord joint bottom plates 3 are welded. The chord joint patching section side plate 8 is welded between the two opposite chord joint 12 sides, and the chord joint patching section top plate 9 is welded between the two opposite chord joint 12 tops.

[0025] A plurality of stiffening steel plates 5 are respectively provided between the positioning steel plate 4 and the chord joint top plate 1 and between the positioning steel plate 4 and the chord joint bottom plate 3 to stiffen the positioning steel plate 4 .

[0026] A plurality of first connection holes 16 are formed on one end of the positioning steel plate 4 extending out of the chord joint 12 , and a plurality of second connection holes 17 are formed on the connecting steel plate 6 . The first connection holes 16 and the second connection holes 17 are connected by connecting bolts 7 .

[0027] Connecting steel plates 6 are provided on both sides of the positioning steel plate 4 .

[0028] The web connecting structure 15 includes a connecting web 10 and an outer steel plate 11. The connecting web 10 is welded between two opposite web joints 13. The outer steel plate 11 is welded around the connection between the connecting web 10 and the web joint 13 to form a tubular shape.

[0029] Embodiment 1,

[0030] The chord joint 12, the positioning steel plate 4, the stiffening steel plate 5, the connecting steel plate 6, the connecting bolts 7, the side plates of the chord joint patching section 8, the top plates of the chord joint patching section 9, the web joint 13, the connecting web 10, and the outer covering steel plate 11 are all made of Q420 steel.

[0031] The box-section size of the chord joint 12 enclosed by the chord joint top plate 1, the chord joint side plate 2, and the chord joint bottom plate 3 is 500×600mm, and the steel plate is 28mm thick. The positioning steel plate 4 is 640×130mm in size and 20mm thick. The stiffening steel plate 5 is wedge-shaped, with a size of 130×120mm and a thickness of 12mm. The connecting steel plate 6 is 520×100mm in size and 16mm thick. The first connecting hole 16 and the second connecting hole 17 have a diameter of 25mm and a hole spacing of 80mm. The connecting bolt 7 is a high-strength bolt with a model of M24×120. The side plate 8 of the chord joint patch section is 600×400mm in size and 28mm thick. The top plate 9 of the chord joint patch section is 500×400mm in size and 28mm thick.

[0032] The box-shaped cross-section size of the web joint 13 and the connecting web 10 is 500×300 mm, and the steel plate thickness is 20 mm. The outer steel plate 11 has two sizes of 520×300 mm and 300×300 mm, and the thickness is 10 mm.

[0033] A gap of 6 mm should be left between two opposite chord joint base plates 3, and a gap of 4 mm should be left between the connecting web member 10 and the web member joint 13.

[0034] The construction method is as follows:

[0035] Step 1: The truss beam segment is manufactured in the factory, and the positioning steel plate 4 and the stiffening steel plate 5 are pre-welded at the chord joint top plate 1 and the chord joint bottom plate 3 of the chord joint 12;

[0036] Step 2, constructing the chord connecting structure 14: the positioning steel plates 4 at the two chord joints 12 are opposite to each other, the connecting steel plates 6 are placed on both sides of the positioning steel plates 4, and the connecting bolts 7 are installed in the first connecting holes 16 and the second connecting holes 17 corresponding to the positions, and the two positioning steel plates 4 are connected and fixed to achieve the precise positioning of the two chord joints 12; then the two opposite chord joint bottom plates 3 are welded, and then the chord joint embedded section side plates 8 and the chord joint embedded section top plates 9 are welded in sequence to complete the construction of the chord connecting structure 14;

[0037] Step 3, construct the web connecting structure 15: first weld the connecting web 10 and the web joint 13, then weld the outer steel plate 11 at the connection, and weld the outer steel plate 11 around the connection to form a tubular structure, thereby completing the construction of the web connecting structure 15.

[0038] The utility model optimizes the design of the truss assembly connection structure, so that the splicing process has accurate positioning and efficient connection, effectively improves the quality of the on-site assembly connection of the truss, and greatly improves the assembly efficiency.

Claims

1. A truss beam connection structure capable of realizing rapid assembly, comprising a chord joint and a web joint, wherein the chord joint is composed of a chord joint top plate, a chord joint bottom plate and a chord joint side plate, and wherein: It also includes a chord connecting structure (14) and a web connecting structure (15); The chord connecting structure (14) comprises a positioning steel plate (4), a connecting steel plate (6), a chord joint patching section side plate (8) and a chord joint patching section top plate (9), wherein the positioning steel plate (4) is welded to the lower surface of the chord joint top plate (1) and the upper surface of the chord joint bottom plate (3), respectively; one end of the positioning steel plate (4) extends out of the chord joint (12); the positioning steel plates (4) at two opposite chord joints (12) are connected by the connecting steel plate (6); the two opposite chord joint bottom plates (3) are welded to each other; the chord joint patching section side plate (8) is welded between the two opposite chord joints (12) side portions; and the chord joint patching section top plate (9) is welded between the two opposite chord joints (12) top portions.

2. A truss beam connection structure capable of rapid assembly according to claim 1, characterized in that: A plurality of stiffening steel plates (5) are respectively arranged between the positioning steel plate (4) and the chord joint top plate (1), and between the positioning steel plate (4) and the chord joint bottom plate (3).

3. A truss beam connection structure capable of rapid assembly according to claim 2, characterized in that: A plurality of first connection holes (16) are formed at one end of the positioning steel plate (4) extending out of the chord joint (12), and a plurality of second connection holes (17) are formed on the connection steel plate (6). The first connection holes (16) and the second connection holes (17) are connected via connection bolts (7).

4. A truss beam connection structure capable of rapid assembly according to claim 3, characterized in that: Connecting steel plates (6) are provided on both sides of the positioning steel plate (4).

5. A truss beam connection structure capable of rapid assembly according to any one of claims 1 to 4, characterized in that: The web connecting structure (15) comprises a connecting web (10) and an outer steel plate (11), wherein the connecting web (10) is welded between two opposite web joints (13), and the outer steel plate (11) is welded around the connection between the connecting web (10) and the web joint (13).

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