CN217630838U

CN217630838U - Hollow truss girder of steel structure

Info

Publication number: CN217630838U
Application number: CN202221801792.9U
Authority: CN
Inventors: 柳晓宇
Original assignee: Shandong Housing Construction Testing Co ltd
Current assignee: Shandong Housing Construction Testing Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-10-21
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses a steel construction is truss girder on an empty stomach, including the plectane of symmetry, characterized by: the two circular plates are respectively fixed at two ends of a group of cross beams which are evenly distributed in the circumferential direction, all the cross beams are fixedly connected with spiral connecting rods, the center of one side of each circular plate is respectively and fixedly connected with one end of a spring, and the other end of each spring is respectively and fixedly connected with a connecting plate. The utility model relates to a truss girder equipment field, specifically say, relate to a steel construction truss girder on an empty stomach, make things convenient for the firm of truss girder.

Description

Hollow truss girder of steel structure

Technical Field

The utility model relates to a truss girder equipment field, specifically say, relate to a steel construction truss girder on an empty stomach.

Background

The truss structure is a common structural system for building and bridge construction, and is a beam bridge with a truss as a main bearing structure, which is called a truss bridge for short.

In China, wood trusses are mostly adopted in early buildings, but the wood is easy to decay, so that the wood is not used much at present. The most of the modern truss bridges are steel structures, prestressed concrete truss bridges have been developed in recent 20 years, and the reinforced concrete truss girders are heavy in weight and are rarely built because the pull rods are easy to crack.

The rod piece of the steel truss consists of profile steel and steel plates, the section of the rod piece generally has a groove shape, an I shape and a box shape, and the profile steel and the whole plate are mainly used at present. The welding connecting piece can be made of steel plates. Some parts in the small-span truss girder adopt section steel (flat steel and angle steel) as a rod piece. The intersection points of the truss members are referred to as nodes. The crossed rod pieces are connected by node plates to form the truss. The connection mode comprises riveting, bolt or high-strength bolt bolting, welding and other modes (see steel structure connection), and the connection mode also comprises pin joint in the early stage, which is not adopted at present. Some military structures also employ pin joints. The whole welding in a factory is impossible, and the welding quality is difficult to ensure under the construction site conditions, so that the rod pieces and other parts are mostly welded in the factory and are connected by high-strength bolts in the construction site to build the bolted beam bridge. The connection of ordinary bolts is often used for temporary girder bridges.

The existing truss is mostly used for large-span building roofs or bridge engineering and is used as a main stress member, but not applied to small-span members or used for solving the problem of local stress. The traditional plane truss and truss girder are generally in the standard geometrical shapes of trapezoid, triangle and rectangle, which is the defect of the prior art.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a steel construction truss girder on an empty stomach conveniently solves secondary construction, reinforcement, coordinate to warp, solve the part and draw not enough etc. adopt helical structure's truss girder to have can cushion the hitting power and resist vertical load dual function, and save usage space.

The utility model discloses a following technical scheme realizes the utility model purpose:

a steel structure open web truss girder comprises symmetrical circular plates, and is characterized in that: the two circular plates are respectively fixed at two ends of a group of cross beams which are uniformly distributed in the circumferential direction, and all the cross beams are fixedly connected with spiral connecting rods;

one end of a spring is fixedly connected to the center of one side of each circular plate, and the other end of each spring is fixedly connected with a connecting plate.

As a further limitation of this solution, the connection plate is arranged inside the screw connection rod.

As a further limitation of the technical solution, a limiting ring is fixed at the center of the other side of each circular plate, the center of each connecting plate is fixedly connected with one end of a guide shaft, and the guide shaft passes through the center of the circular plate and the limiting ring.

As a further limitation of the technical scheme, the other end of each guide shaft is respectively fixed to one end of a support block, two sides of each support block are respectively fixedly connected with an inclined limiting rod, and the limiting rods can abut against the circular plate.

As a further limitation of the technical scheme, the upper sides of the supporting blocks are respectively fixedly connected with supporting shafts, and the upper ends of the supporting shafts fix the centers of the mounting plates.

As a further limitation of the technical scheme, a group of mounting holes which are uniformly distributed circumferentially are respectively arranged at the edge position of the mounting plate.

Compared with the prior art, the utility model discloses an advantage is with positive effect: the utility model provides a steel construction truss girder on an empty stomach. The method has the following beneficial effects:

(1) The device can realize the use of the concrete hollow truss girder, is firmer, the limiting rod props against the circular plate to carry out auxiliary support on the circular plate, and the spring and the guide shaft play roles in supporting, buffering and damping;

(2) The mounting panel can assist the installation through the mounting hole and fix, easy operation, convenient to use.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a first perspective view of the present invention.

Fig. 2 is a second perspective view of the present invention.

Fig. 3 is a third perspective view of the present invention.

Fig. 4 is a partial perspective view of the present invention.

In the figure: 1. the device comprises a cross beam, 2, a mounting plate, 3, a mounting hole, 4, a support shaft, 5, a support block, 6, a limiting rod, 7, a limiting ring, 8, a circular plate, 9, a spiral connecting rod, 10, a connecting plate, 11, a spring, 12 and a guide shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that the terms of orientation such as left, right, up, down, front and back in the embodiments of the present invention are only relative concepts or are referred to the normal use state of the product, i.e. the traveling direction of the product, and should not be considered as limiting.

When an element is referred to as being "on" or "disposed" to another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

The first embodiment is as follows: the device comprises symmetrical circular plates 8, wherein the two circular plates 8 are respectively fixed at two ends of a group of cross beams 1 which are uniformly distributed circumferentially, and all the cross beams 1 are fixedly connected with spiral connecting rods 9;

one end of a spring 11 is fixedly connected to the center of one side of each circular plate 8, and a connecting plate 10 is fixedly connected to the other end of each spring 11.

The connecting plate 10 is arranged inside the screw connection rod 9.

A limiting ring 7 is fixed at the center of the other side of each circular plate 8, the center of each connecting plate 10 is fixedly connected with one end of a guide shaft 12, and the guide shaft 12 penetrates through the center of the circular plate 8 and the limiting ring 7.

The other end of each guide shaft 12 is respectively fixed with one end of a supporting block 5, two sides of each supporting block 5 are respectively fixedly connected with an inclined limiting rod 6, and the limiting rods 6 can abut against the circular plate 8.

The upper sides of the supporting blocks 5 are respectively and fixedly connected with a supporting shaft 4, and the upper end of the supporting shaft 4 is fixed at the center of the mounting plate 2.

Example two: the embodiment is further limited on the basis of the first embodiment, and the edge positions of the mounting plate 2 are respectively provided with a group of mounting holes 3 which are uniformly arranged circumferentially.

The using mode of the device is that the beam 1, the spiral connecting rod 9 and the circular plate 8 form a truss girder, when the truss girder is used, the truss girder is fixed on two sides of a bridge to be supported, the mounting plate 2 is installed and fixed on piers on two sides of the bridge, the limiting rod 6 abuts against the circular plate 8 to support the circular plate 8 in an auxiliary mode, and the spring 11 and the guide shaft 12 play roles in supporting, buffering and damping.

The mounting plate 2 can be installed and fixed in an auxiliary mode through the mounting holes 3, and the mounting plate is simple in operation and convenient to use.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A steel structure open web truss girder, comprising symmetrical circular plates (8), characterized in that: the two circular plates (8) are respectively fixed at two ends of a group of cross beams (1) which are uniformly distributed circumferentially, and all the cross beams (1) are fixedly connected with a spiral connecting rod (9);

the center of one side of each circular plate (8) is fixedly connected with one end of a spring (11) respectively, and the other end of each spring (11) is fixedly connected with a connecting plate (10) respectively.

2. The steel structure open web truss girder according to claim 1, wherein: the connecting plate (10) is arranged in the spiral connecting rod (9).

3. The steel structure open web truss girder of claim 1, wherein: the center of the other side of each circular plate (8) is respectively fixed with a limiting ring (7), the center of each connecting plate (10) is respectively fixedly connected with one end of a guide shaft (12), and the guide shaft (12) penetrates through the center of the circular plate (8) and the limiting ring (7).

4. A steel structural open web truss girder as defined in claim 3, wherein: the other end of each guide shaft (12) is respectively fixed with one end of a supporting block (5), two sides of each supporting block (5) are respectively fixedly connected with an inclined limiting rod (6), and the limiting rods (6) can abut against the circular plate (8).

5. The steel structure open web truss girder according to claim 4, wherein: the upper sides of the supporting blocks (5) are respectively fixedly connected with supporting shafts (4), and the centers of the mounting plates (2) are fixed at the upper ends of the supporting shafts (4).

6. The steel structure open web truss girder according to claim 5, wherein: and the edge positions of the mounting plate (2) are respectively provided with a group of mounting holes (3) with uniformly distributed circumferences.