JP2001279863A - Roof truss joining structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof truss joining structure capable of facilitating the construction and reducing cost. SOLUTION: This roof truss joining structure 10 is constituted by joining each member made of a comparatively thin-walled steel member by a rivet of self-piercing type.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truss truss joining structure. More specifically, the present invention relates to a truss truss joint structure for assembling members of a so-called truss structure used in a steel truss group.

[0002]

2. Description of the Related Art Conventionally, as a method of joining each member in a so-called truss structure used for a steel frame building, for example, a method of joining each member by welding and a method of joining by bolts or rivets have been used. Among such conventional joining methods, a method of joining each member by welding is difficult to cope with plating and a coating material, and requires painting after assembling. For this reason, there is a problem that the efficiency of the painting operation is deteriorated, which causes an increase in cost and a prolonged process.

[0003] In the method of joining with bolts or rivets, it is necessary to make a prepared hole in each member, and very high precision is required for the prepared hole alignment, so that the number of steps is increased and the work is complicated. There is a problem that.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art, and has as its object to provide a truss-jointed truss structure capable of facilitating construction and suppressing an increase in cost. I have.

[0005]

A trussed truss joint structure according to the present invention is characterized in that members made of a relatively thin steel material are joined by self-piercing rivets.

In the truss truss joint structure of the present invention, the steel material is preferably plated or painted in advance.

[0007]

Since the present invention is constructed as described above, each member can be assembled without drilling a pilot hole and without welding. This makes it possible to eliminate the step of drilling a pilot hole and aligning the pilot hole, and also eliminate the need for plating and painting after the so-called truss structure is assembled.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on embodiments with reference to the attached drawings, but the present invention is not limited to only such embodiments.

Embodiment 1 FIG. 1 shows a schematic configuration of a truss truss structure to which a steel truss truss joint structure according to a first embodiment of the present invention is applied. The outer frame 30 having an isosceles triangular shape having the first and second angled truss members 12 and 13 having the same length as two oblique sides is reinforced by a plurality of reinforcing members.

That is, one end of the lower truss chord 11 is joined to one end (lower end) of the first chevron truss member 12 via the first gusset plate 31, and the other end of the truss lower chord 11 is connected to the other end. The part is the second gusset plate 32
Is joined to one end (lower end) of the second angled truss member 13 through the first and second angled truss members 1.
The other end (upper end) of each of 2 and 13 is joined to each other via a third gusset plate 33 to form an outer frame 30.

First and second chevron truss members 12, 1
3 and a central portion in the longitudinal direction of the truss lower chord member 11 (hereinafter, referred to as a portion A).
A first strut member 14 is disposed between the first strut member 14 and the first and second chevron truss members 1.
The other end of each of 2 and 13 is joined via a third gusset plate 33. First strut member 1
4 is a portion B of the truss lower chord 11
And a fourth gusset plate 34.

The first angle truss member 12 side of the part B;
A central portion in the longitudinal direction of the first chevron truss member 12 (hereinafter, referred to as a central portion)
A first brace member 15 is disposed between the first brace member 15 and one end portion (lower end portion) of the first brace member 15 at a portion B of the truss lower chord member 11 and a fourth gusset plate. 34 are joined. The other end (upper end) of the first brace member 15 is joined to a portion C of the first chevron truss member 12 via a fifth gusset plate 35.

A second angle truss member 13 side of the part B;
The central portion in the longitudinal direction of the second chevron truss member 13 (hereinafter, referred to as
A second brace member 16 is disposed between the second brace member 16 and one end (lower end) of the second brace member 16. 34 are joined. The other end (upper end) of the second brace member 15 is joined to a portion C of the second chevron truss member 13 via a sixth gusset plate 36.

A central portion of the portion C of the first chevron truss member 12 and the portion E and the portion B of the truss lower chord member 11 (hereinafter, referred to as a central portion).
Between the second strut member 17 and the portion F).
Is arranged, and one end (upper end) of the second strut member 17 is joined to the portion C of the first chevron truss member 12 via a fifth gusset plate 35. The other end (lower end) of the second strut member 17 is joined to the portion F of the truss lower chord member 11 via a seventh gusset plate 37.

The third strut member 1 is located between a portion D of the second chevron truss member 13 and a central portion (hereinafter, referred to as a portion H) between the joining portion G and the portion B of the truss lower chord member 11.
8, and one end (upper end) of the third strut member 18 is joined to the portion D of the second chevron truss member 13 via a sixth gusset plate 36.
The other end (lower end) of the third strut member 18 is connected to the portion H of the lower truss chord member 11 and the eighth gusset plate 38.
Are joined through.

A central portion of the portion F of the lower chord truss member 11 and the portion C and the portion E of the first chevron truss member 12 (hereinafter, referred to as a central portion)
A third brace member 19 is disposed between the first truss member 11 and the seventh gusset. They are joined via a plate 37. The other end (upper end) of the third brace member 19 is joined to the portion I of the first chevron truss member 12 via a ninth gusset plate 39.

The central portion of the portion H of the truss lower chord member 11 and the portion D and the portion G of the second chevron truss member 13 (hereinafter, referred to as the center portion).
A fourth brace member 20 is disposed between the first and second portions of the truss lower chord member 11 and an eighth gusset. They are joined via a plate 38. The other end (upper end) of the fourth brace member 20 is joined to a portion I of the second chevron truss member 13 via a tenth gusset plate 40.

FIG. 2 shows how the members are joined. For example, at the part B, as shown in FIG. 4A, a fourth gusset plate 34 is provided on the lower truss chord 11 at points a, a and points b, b by a self-piercing rivet (for example, Nippon Drive-it). The first strut member 14 is joined to the fourth gusset plate 34 at points c and c by a self-piercing rivet, and the first strut member 14 is joined to the fourth gusset plate 34 by a self-piercing rivet.
Brace member 15 is joined to the fourth gusset plate 34 by self-piercing rivets at points d and d, and the second brace member 16 is joined to the fourth gusset plate 34 by self-piercing rivets at points e and e. It is joined by.

At a portion C, as shown in FIG. 2B, a fifth gusset plate 35 is attached to the first chevron truss member 12.
Are joined by self-piercing rivets at points f, f and points g, g, and the first brace member 15 is connected to the fifth gusset plate 35 at points h, h and points i, i.
The second strut member 17 is joined to the fifth gusset plate 35 at points j and j by a self-piercing rivet.

Each of the members 11 to 20 constituting the truss 10 is a relatively thin steel plate (for example, a steel plate having a thickness of less than 3.2 mm) so that self-piercing by rivets can be performed.
For example, as the truss lower chord material 11, and the first and second chevron truss members 12, 13,
A lip groove steel having a thickness of 1.6 mm is used. In addition, each of the reinforcing members 14 to 20 is 1.0 to 1.6 m.
A lip channel steel having a thickness of m is used.

The thickness of the steel sheet constituting each of the members 11 to 20 is set to a size that can be self-pierced by rivets and can maintain necessary and sufficient strength as a constituent member of a hut assembly. Things.

Each of the gusset plates 31 to 40 is, for example, a 3.2 mm-thick steel plate processed into an appropriate shape.

Here, each member 11-20 and each gusset plate 31-40 are plated or painted in advance to shorten the construction period.

As described above, the trussed truss structure of the first embodiment forms a truss structure from the members 11 to 20 made of relatively thin steel plates, and the members 11 to 20 are formed by self-piercing rivets. Since the joining is performed, the step of drilling a pilot hole and aligning the pilot hole can be omitted.

In the case where the members are joined by welding, painting after assembly or repair painting is required, whereas according to the first embodiment, plating or painting is performed before assembling the members. Therefore, it is possible to further improve work efficiency, reduce costs, and shorten the construction period.

Embodiment 2 FIG. 3 shows a schematic configuration of a truss truss to which a steel truss truss connection structure according to Embodiment 2 of the present invention is applied. The trapezoidal outer frame 30 is formed by the first to fourth outer frame forming members 41 to 44.
′ Are formed, and the first to first portions are formed at appropriate positions inside the outer frame 30 ′.
Three reinforcing members 45 to 57 are provided, and the members 41 to 57 are joined via first to sixteenth gusset plates 61 to 76.

In the second embodiment, similarly to the first embodiment, each of the members 41 to 57 is made of a relatively thin steel plate.
The members are joined by a self-piercing rivet, and the members 41 to 57 are plated or painted before assembly. Thereby, the second embodiment
In this case, the same effect as in the first embodiment can be obtained.

As described above, the present invention has been described based on the embodiments. However, the present invention is not limited to only the embodiments, and various modifications are possible. For example, the truss to which the present invention is applied is not limited to the above,
Applicable to trusses of various shapes.

[0029]

As described above in detail, the trussed truss joining structure of the present invention is formed by joining members made of relatively thin steel by self-piercing rivets. Drilling and lower hole alignment are not required,
This provides an excellent effect of facilitating the construction, shortening the construction period and suppressing an increase in cost.

Further, unlike the case of welding, a steel plate which has been plated or painted in advance can be used, so that painting after assembly can be dispensed with. Thereby, there is an effect that the construction can be further facilitated, the construction period can be shortened, and an increase in cost can be suppressed.

[Brief description of the drawings]

FIG. 1 is a front view showing a schematic configuration of a trussed truss structure to which a steel trussed truss joining structure according to a first embodiment of the present invention is applied.

FIG. 2 is a partially enlarged view of FIG. 1 for explaining a joining style of the truss truss.

FIG. 3 is a front view showing a schematic configuration of a truss truss structure to which a steel truss structure truss joining structure according to a second embodiment of the present invention is applied.

[Explanation of symbols]

 10, 10 'truss truss 11 Truss lower chord material 12, 13 Angle truss member 14, 17, 18 Strut member 15, 16, 19, 20 Brace member 30, 30' Outer frame 31-40, 61-76 Gusset plate 41- 56 each member

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoshimitsu Murahashi 2-6-3 Otemachi, Chiyoda-ku, Tokyo New Nippon Steel Corporation F-term (reference) 2E125 AA26 AB05 AB10 AC17 BB01 BD01 BE05 BE08 BF01 CA96 EA00 2E163 FB32 FB42 FB45

Claims (2)

[Claims] 1. A trussed truss joint structure in which members made of a relatively thin steel material are joined by self-piercing rivets. 2. The truss-jointed truss structure according to claim 1, wherein the steel material is plated or painted in advance.