CN209244088U - A simple long-screw-bolt joint construction for trusses - Google Patents

Abstract

A simple long-screw bolt splicing joint structure for trusses, including section steel; Steel web, the two sides of the steel web are connected with the flange; compared with the existing technology, the connection provides a new technology, this technology can avoid the joint welding work of the truss, thereby effectively reducing labor costs, and provides a completely on-site The bulk truss assembly method reduces the transportation cost by transporting small components, and can easily remove the truss, and can perform multiple bulk trusses on other occasions to achieve the purpose of reuse, without welding any connection on the chord The plate saves the amount of steel and avoids the deformation of the protruding plate during transportation and installation.

Description

A simple long-screw-bolt joint construction for trusses

technical field

The utility model belongs to the technical field of trusses, in particular to a simple long-screw bolt splicing node structure used for trusses.

Background technique

A truss refers to a planar or spatial structure composed of straight rods and generally having triangular units. Under the action of external load, the truss members mainly bear axial tension or pressure, so that the strength of the material can be fully utilized. When the span is large, it can save material, reduce self-weight and increase stiffness compared with solid web beams, so the truss is suitable for large spans. Load-bearing structures and high-rise structures, such as roof trusses, transport brackets, transmission towers, etc.

Lightweight trusses refer to trusses with less stress and smaller spans, which can be made of smaller cross-sections and thinner steel plates. This type of truss is widely used in some light roofs, pipe supports and stage supports.

Ordinary steel trusses generally use single-web members, usually a T-shaped cross-section composed of two angle steels, and sometimes a ten-shaped, trough-shaped or tubular cross-section is used, and one or more gusset plates are welded at the joints. Connected to the web by bolts or welding. The light steel truss web member adopts small angle steel and round steel, or cold-formed thin-walled steel, and the joints are connected by welding a gusset plate to connect the members.

The joints of the current steel truss structure are usually welded, ordinary bolted, high-strength bolted or riveted. The welded joints of the truss need to weld one or more gusset plates at the top or bottom of the chord. The welding workload is large and the production cost High; this type of truss is transported to the site for splicing after the factory is segmented, requiring the use of large transport vehicles, and the transportation cost is high; the truss at the welded joint cannot be disassembled again after completion, and cannot be reused on other occasions.

The conventional bolted joints of trusses require additional welding of open-hole connection plates on the chords, and the connection plates of such protruding members are easily deformed and damaged during transportation and installation.

Utility model content

The purpose of the utility model is to overcome the defects in the above-mentioned prior art, and provide a simple long-screw-bolt splicing node structure for trusses with an assembled structure, easy disassembly and controllable cost.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a simple long screw bolt joint structure for truss, including section steel; the section steel is composed of web and flanges on both sides of the web, A through hole is also arranged on the plate; a steel web is arranged in the through hole, and both sides of the steel web are connected with the flange.

As a preferred solution of the utility model, the shaped steel is H-shaped steel, the flanges on both sides are arranged opposite and parallel to each other, and the web and the flanges are arranged perpendicularly.

As a preferred solution of the present invention, the width of the through hole is consistent with the width of the web, and the through hole communicates with the flanges on both sides.

As a preferred solution of the present invention, the flange is provided with a first bolt hole, and the first bolt hole communicates with the through hole.

As a preferred solution of the present invention, a reinforcement plate is provided on the flange, and the reinforcement plate is located on the outer side of the opposite flange.

As a preferred solution of the present invention, the reinforcing plate is provided with a second bolt hole, and the second bolt hole communicates with the first bolt hole.

As a preferred solution of the present utility model, the reinforcing plate is arranged along the direction of the flange, and the reinforcing plate is located on both sides of the through hole.

As a preferred solution of the present invention, the width of the reinforcement plate is the same as that of the flange, the length of the reinforcement plate is greater than the length of the through hole, and the thickness of the reinforcement plate is consistent with the thickness of the flange.

As a preferred solution of the present invention, the width of the steel web is consistent with the width of the through hole, and both sides of the steel web are in contact with the flange.

As a preferred solution of the present utility model, the steel web rod and the flange are connected by screws.

The beneficial effects of the utility model are, compared with the prior art:

(1) Provide a new technology for the node connection of steel trusses, which can avoid the node welding work of trusses and effectively reduce labor costs;

(2) It can provide a completely on-site bulk truss assembly method, and reduce transportation costs by transporting small components;

(3) The truss can be dismantled conveniently, and the truss can be packed in bulk in other occasions to achieve the purpose of reuse;

(4) There is no need to weld any connecting plate on the chord, which saves the amount of steel and avoids deformation of the protruding plate during transportation and installation;

(5) A single truss web member is used, the components are simple and the steel consumption is small.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of section steel;

Fig. 3 is the front view of the utility model;

Fig. 4 is the top view of the utility model;

Reference signs in the figure: shaped steel 1, web plate 1-1, flange 1-2, first bolt hole 1-3, through hole 2, reinforcement plate 3, second bolt hole 3-1, steel web bar 4, screw 5.

Detailed ways

Below in conjunction with accompanying drawing, the utility model embodiment is described in detail.

As shown in Figure 1-4, a simple long screw bolt joint structure for trusses, including steel 1; steel 1 is composed of web 1-1 and flanges 1-2 on both sides of web 1-1 , the web 1-1 is located between the flanges 1-2 on both sides, the web 1-1 is also provided with a through hole 2, and the size of the through hole 2 is a rectangular through hole; the through hole 2 is provided with a steel web bar 4, steel The two sides of the web 4 are connected with the flanges 1-2, and the section width of the steel web 4 is the section width of the section steel 1 minus the thickness of the flange 1-3, so that the two sides of the steel web 4 are connected with the flanges 1 on both sides of the section steel 1. -3 is offset, so that the steel web 4 has better stability on the section steel 1, and a single section steel is used, the components are simple and the steel consumption is small, and the cost is controlled.

The shaped steel 1 is an H-shaped steel, the flanges 1-2 on both sides are arranged opposite and parallel to each other, and the web 1-1 and the flanges 1-2 are arranged vertically, so as to facilitate the processing of the steel web 4 and the shaped steel 1, thereby reducing the production cost .

The width of the through hole 2 is consistent with the width of the web 1-1, the length of the through hole 2 is designed according to actual needs, and the through hole 2 communicates with the flanges 1-2 on both sides.

The flange 1-2 is provided with a first bolt hole 1-3, and the first bolt hole 1-3 communicates with the through hole 2. The flange 1-2 is provided with a reinforcement plate 3, and the reinforcement plate 3 is located on the opposite wing. Outside the edge 1-2, the reinforcement plate 3 is provided with a second bolt hole 3-1, the second bolt hole 3-1 communicates with the first bolt hole 1-3, and the gap between the steel web bar 4 and the flange 1-2 Connected by screw 5.

The number of the first bolt hole 1-3 and the second bolt hole 3-1 are the same, and the positions of the first bolt hole 1-3 and the second bolt hole 3-1 are corresponding, and the first bolt hole 1-3 and the second bolt hole 3-1 are corresponding to each other. The position of the bolt hole 3-1 corresponds to the position of the steel web 4, and the steel web 4 is provided with a hole communicating with the first bolt hole 1-3 and the second bolt hole 3-1.

The screw rod 5 passes through the first bolt hole 1-3 and the second bolt hole 3-1 in turn to connect with the steel web rod 4, the length of the screw rod 5 is greater than the width of the through hole 2, and the number of the screw rod 5 depends on the first bolt hole 1-3 and the second bolt hole 3-1 are designed, and the diameter of the screw rod 5 is determined according to the stress situation.

The reinforcing plate 3 is arranged along the direction of the flange 1-2, and the reinforcing plate 3 is located on both sides of the through hole 2, the width of the reinforcing plate 3 is the same as the width of the flange 1-2, and the length of the reinforcing plate 3 is greater than the length of the through hole 2, The thickness of the reinforcing plate 3 is consistent with the thickness of the flange 1-2. The reinforcing plate 3 is used to strengthen the strength of the flange 1-2, and the reinforcing plate 3 is close to the flange 1-2, so that the steel web 4 is in the shape of the steel 1 Has better strength inside.

The width of the steel web 4 is consistent with the width of the through hole 2, and both sides of the steel web 4 are in contact with the flange 1-2, so as to improve the stability of the steel web 4 in the section steel 1.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model; Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Although this article uses more reference signs in the figure: steel 1, web 1-1, flange 1-2, first bolt hole 1-3, through hole 2, reinforcement plate 3, second bolt hole 3- 1. Terms such as steel web rod 4, screw rod 5, etc., but do not exclude the possibility of using other terms; using these terms is only to describe and explain the essence of the utility model more conveniently; interpret them as any additional Restrictions are contrary to the spirit of the present utility model.

Claims (10)

1. A simple long screw bolt splicing joint structure for trusses, characterized in that it includes section steel (1); the section steel (1) consists of a web (1-1) and two side flange (1-2), the web (1-1) is also provided with a through hole (2); the through hole (2) is provided with a steel web (4), the steel web (4 ) are connected to the flange (1-2) on both sides. 2. A simple long-screw bolt joint structure for trusses according to claim 1, characterized in that the section steel (1) is H-section steel, and the flanges (1-2) on both sides are oppositely arranged and parallel to each other, and the web (1-1) and the flange (1-2) are vertically arranged. 3. A simple long screw bolt splicing joint structure for trusses according to claim 1, characterized in that the width of the through hole (2) is consistent with the width of the web (1-1), and the through hole (2) ) communicates with the flanges (1-2) on both sides. 4. A simple long screw bolt splicing joint structure for truss according to claim 3, characterized in that, the flange (1-2) is provided with a first bolt hole (1-3), the second A bolt hole (1-3) communicates with the through hole (2). 5. A simple long screw bolt splicing joint structure for truss according to claim 4, characterized in that, the flange (1-2) is provided with a reinforcing plate (3), and the reinforcing plate (3) Located on the outside of the oppositely disposed flange (1-2). 6. A simple long screw bolt splicing joint structure for trusses according to claim 5, characterized in that, the reinforcement plate (3) is provided with a second bolt hole (3-1), and the second bolt The hole (3-1) communicates with the first bolt hole (1-3). 7. A simple long screw bolt splicing joint structure for trusses according to claim 6, characterized in that, the reinforcement plate (3) is arranged along the direction of the flange (1-2), and the reinforcement plate (3) ) are located on both sides of the through hole (2). 8. A simple long screw bolt splicing joint structure for trusses according to claim 7, characterized in that the width of the reinforcement plate (3) is the same as the width of the flange (1-2), and the reinforcement plate The length of (3) is greater than the length of the through hole (2), and the thickness of the reinforcing plate (3) is consistent with the thickness of the flange (1-2). 9. A simple long screw bolt splicing joint structure for trusses according to claim 1, characterized in that the width of the steel web (4) is consistent with the width of the through hole (2), and the steel web ( 4) Both sides are in contact with the flange (1-2). 10. A simple long screw bolt splicing joint structure for trusses according to claim 1, characterized in that, the steel web (4) and the flange (1-2) are connected by a screw (5) connected.