JP2971758B2 - Joint structure of space truss - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention relates to an upper chord material, a lower chord material and
Truss beams composed of a number of lattice materials,
Three-dimensional tiger constructed by joining with a joint plate
The joint structure of the steel.

[0002]

2. Description of the Related Art
A three-dimensional truss composed of a plurality of truss beams connecting the upper and lower chords with multiple lattice members and joining them with a joint fitting and a joint plate is also disclosed in Japanese Patent Publication No. 6-21473. As described, it is generally known.

Conventionally, in this type of three-dimensional truss, when joining the joining points of truss beams and truss beams, joints are interposed at joints, and the ends of the upper and lower chord members of each truss beam are connected to the joints. The parts were joined by bolts, and the joint plates were straddled by straddling the upper and lower chords and bolted together. However, the upper and lower chords of the truss beams and the lattice members were integrally stopped For this reason, when they are transported, they are deformed or damaged, and when assembling them at an installation site, assembling them integrally is quite troublesome.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. When a three-dimensional truss is constructed by joining a plurality of truss beams, the truss beams have an upper chord material and an end of a lower chord material. The purpose of the present invention is to provide a joint structure of a three-dimensional truss that facilitates joining of truss beams because the lattice material is integrally formed through a gusset plate and that solves the conventional problems that occur during transportation. And

[0005]

A three-dimensional tiger according to the present invention.
The joint structure of the upper and lower chords made of angle iron
Truss beams composed of a number of lattice materials,
Three-dimensional tiger constructed by joining with a joint plate
The upper end of the bundle of angle iron
And upper and lower joints consisting of plates at the lower end
Install the joints formed by projecting each, and
Upper and lower chord members of the truss beams at the lower and upper joints
Each through a gusset plate, multiple joining bolts
And the upper chord material and the lower chord material
Through the joint plate, each with a plurality of joint bolts
It is constituted by joining.

[0006]

1 to 4 show one embodiment of a joint structure of a space truss according to the present invention. In the drawings, reference numeral 1 denotes a truss beam installed through the joint of a space truss, and FIG. And 3 are truss beams connected to both sides of the truss beam 1 at the truss connection, and 4 are installed at the truss connection, and truss beams 1, 2, 3
Metal fittings for joining the upper chords 1a, 2a and 3a and the lower chords 1b, 2b and 3b to each other, and reference numerals 5 and 6 denote truss beams 1, 2, 3
The joint plates are attached between the upper chord members 1a, 2a, 3a and between the lower chord members 1b, 2b, 3b, respectively, and join these members to each other (see FIGS. 1 and 2).

The truss beam 1 includes an upper chord 1a and a lower chord 1b extending in parallel, and a plurality of lattice members 1c attached between the upper chord 1a and the lower chord 1b. . The truss beams 2 and 3 are composed of upper chords 2a, 3a and lower chords 2b, 3b.
And a plurality of lattice members 2c and 3c, respectively, and are configured similarly to the truss beam 1. Also, the upper chord members 1a, 2a, 3a, the lower chord members 1b, 2b, 3b and the lattice members 1
Each of c, 2c, and 3c is formed from a steel material such as an angle iron.

Further, the upper chord members 2a and 3a of the truss beams 2 and 3
Gusset plates 7 and 8 to be joined to the joint fittings 4 are respectively installed at the end of the lower chord members 2b and 3b (see FIG. 3A).

The gusset plates 7 and 8 are mounted by bolting with a plurality of mounting bolts 9 for easy mounting.

[0010] The joint fitting 4 is composed of upper chord members 1a, 2 of the truss beams 1, 2, 3.
a, 3a, the upper joint 10 joining the truss beams 1, 2, 3
And the lower joint portion 11 for joining the lower chord members 1b, 2b, 3b to each other,
The upper end and the lower end of the bundle 13 are joined by a plurality of joining bolts 14, respectively (see FIG. 3 (a)).

The upper joint 10 includes a web 10a attached to the side of the upper chord 1a of the truss beam 1 and truss beams 2 and 3.
Webs 10 attached to the side portions of the gusset plate 7 installed at the ends of the upper chord members 2a and 3a, respectively.
b and 10c, and the lower joint 11 is a web 11a attached to the side surface of the lower chord 1b of the truss beam 1.
And webs 11b and 11c attached to the side surfaces of the gusset plate 8 provided at the ends of the lower chord members 2b and 3b, respectively, of the truss beams 2 and 3 (see FIGS. 2 and 4). ).

The upper joint 10 and the lower joint 11 are
Each of the webs 10a, 11c, 11b, which is a plate formed in a rectangular plate shape on both sides of a web 10a, 11a formed of a single plate formed in a substantially large rectangular substantially triangular plate shape .
11c is easily formed by welding or the like, and the bundle 13 is formed from angle iron.

The joint fitting 4 formed in this manner is formed by connecting the web 10a of the upper joint portion 10 and the web 11a of the lower joint portion 11 to the side surfaces of the upper chord member 1a and the lower chord member 1b of the truss beam 1 by a plurality of joining bolts 14. Each of the webs 10b and 10c of the upper joint 10 and the webs 11b and 11c of the lower joint 11 are connected to the gusset plates 7 and 8 of the truss beams 2 and 3 by bolting. Are joined to the truss beams 2 and 3 by bolting with the joining bolts 14 respectively.

The joint plate 5 is joined to the upper chord members 1a, 2a and 3a of the truss beams 1, 2, 3 by a plurality of joining bolts 15, and the joint plate 6 is joined to the lower chord member 1b of the truss beams 1, 2, 3 , 2
b and 3b are joined by a plurality of joining bolts 16.

With such a structure, the truss beams 1, 2, 3
Does not use any welding, the joint fitting 4 and the joint plates 5,6
And three-dimensionally joined to each other only with a plurality of joining bolts.

[0016]

The present invention is constructed as described above, and joins the upper chord, the lower chord and the lattice of the truss beam using the joint fitting and the joint plate for three-dimensionally joining the truss beams. The joining metal fitting is constituted by a bundle material, an upper joint part, and a lower joint part, and the upper joint parts are mutually joined by a plurality of joining bolts on the upper chord of the truss beam. The lower chord is joined to each other via a gusset plate by a plurality of joining bolts, and the lower joint is joined to the lower chord of the truss beam via a gusset plate. And a plurality of connecting bolts are connected by a bundle material, and the joint plate is attached to the upper chord material and the lower chord material of the truss beam, respectively,
Since the upper and lower chords are joined to each other by a plurality of joining bolts, it is extremely easy to join multiple truss beams and construct a three-dimensional truss by just using bolts without using welding. Can be joined to the site to save labor on site construction,
The construction accuracy can be improved, the construction period can be significantly shortened, and the like, which has the effect of solving the problems of the conventional technology.

Also, since the joint fitting can be easily attached on site, the truss beam can be transported separately from the truss beam so that the truss beam can be easily transported. There is also.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a joint structure of a space truss according to the present invention.

2 (a) is a plan view showing one embodiment of a joint structure of a space truss according to the present invention, FIG. 2 (b) is a longitudinal sectional view, and FIG. 2 (c) is (b)
3 is a sectional view taken along line aa in FIG.

FIG. 3 (a) is an exploded side view showing one embodiment of the joint structure of the space truss according to the present invention, and FIG.
It is a sectional view taken on line b.

FIG. 4 is an exploded plan view showing one embodiment of the joint structure of the space truss according to the present invention.

[Explanation of symbols]

1,2,3… truss beam, 4… joint fitting, 5,6… joint plate, 7,8… gusset plate, 9… mounting bolt, 10… upper joint, 11… lower joint, 12… joint bolt, 13… Bundle material, 14,15,16… Joint bolt.

Claims (1)

(57) [Claims] An upper chord and a lower chord made of angle iron and a plurality of chords are provided.
Multiple truss beams made of lattice material are joined with the joint
Of a space truss constructed by joining with a plate
In the joint structure, the upper and lower ends of a bundle made of angle iron
Remove the upper and lower joints consisting of plates at the ends
The fittings formed by projecting each are installed, and the upper
The upper and lower chord members of the truss beam are laid at the joint and lower joint.
Connect each with multiple joint bolts via the gusset plate
And the upper chord material and the lower chord material
Joined with multiple joint bolts via the joint plate
The joint structure of the space truss characterized by being made.