JPH0216231A - Truss - Google Patents

Abstract

PURPOSE:To simply and exactly fix panel parts of a chord member by a method in which the crossing point of vertical and horizontal upper chords is connected with the crossing point of vertical and horizontal lower chords by an oblique part, and the upper and lower chords and the oblique part are formed of angular pipes. CONSTITUTION:Vertical and horizontal upper chords 1a and 1b formed of angular pipe are set in a lattice form to form an upper lattice 1, and vertical and horizontal lower chords 2a and 2b formed of angular pipe are also set in a lattice form to form a lower lattice 2. The crossing points of the cables 1a, 1b, 2a, and 2b of both the lattices 1 and 2 are connected with oblique parts 3a and 3b formed of angular pipe to form a truss.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to 1 gymnasiums, factories, exhibition halls, leisure halls, 1
This relates to trusses used in warehouses and other various buildings and space structures.

[Prior art] As this type of truss, for example, Japanese Patent Application Laid-Open No. 47-24118
As disclosed in the publication, the vertical and horizontal top chords arranged in a grid pattern, the vertical and horizontal bottom chords arranged in a grid pattern, and the intersections of these vertical and horizontal top chords and the intersections of the vertical and horizontal bottom chords. Those constructed with diagonal members that tie together are well known.

After such a truss is assembled into a predetermined form, panel members such as the roof, floor, and walls are often attached depending on the respective use. A method was used in which a special bracket was fixed to the joint part of the panel, and the panel member was fixed to this bracket.

However, if the distance between the joints is large, it may be necessary to support the panel member on the chords at an intermediate position, or depending on the installation conditions, it may be necessary to support the panel member on the chord material at an intermediate position. ,
In some cases, it is preferable to fix the panel member to the string member at an intermediate point between the joint parts, and in these cases, the panel member must be fixed directly to the string member.

However, in conventional trusses, the upper and lower chord members and diagonal members are formed by pipes with a circular cross section, so the chord members and panel members can only be brought into contact over a small area by line contact, and their Fixing is also not easy, and it is difficult to stably abut and fix the panel member over a large area. Even if a panel member is fixed to a string member through a bracket, it is a difficult task to securely attach the bracket to the string member.

[Problems to be Solved by the Invention] An object of the present invention is to provide a truss that can easily and reliably fix a panel member to a first chord member.

[Means for solving problems]

In order to solve the above-mentioned problems, 1 the present invention provides vertical and horizontal top chords arranged in a lattice pattern, vertical and horizontal bottom chords arranged in a lattice pattern, and intersections between the vertical and horizontal top chords and the intersections of the vertical and horizontal bottom chords. The truss is composed of connecting diagonal members, and is characterized in that each of the chord members and the diagonal members are formed of square pipes.

[Function] After the above-mentioned truss is assembled into a predetermined form, panel members such as roofs, floors, walls, etc. are attached according to each purpose. In this case, since the chord member is formed of a rectangular pipe, the panel members can be brought into contact over a wide area by surface contact, and IIJ can be fixed simply and stably.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

The truss shown in FIGS. 1 and 2 consists of an upper lattice l consisting of vertical and horizontal upper chord members 1a and lb arranged in a lattice pattern, and a lower lattice 2 consisting of vertical and horizontal lower chord members 2a and 2b arranged in a lattice pattern. and the vertical and horizontal chord members 1a, l in both these lattices 1.2
diagonal members 3a, 3 that interconnect the intersections of b and 2a, 2b;
It is composed of b.

The above-mentioned upper and lower chord members 1a, lb, 2a, 2b and diagonal members 3a,
3b, as shown in FIGS. 5 and 6, are all formed of square pipes, and at the intersection of each village, a flat part 4.5 is formed by folding the side surface inward, and this flat part In 4 and 5, each village is interconnected in the following manner.

That is, FIGS. 3 and 4 show the structure of the joint parts of the vertical and horizontal upper chord members 1a, lb and the diagonal members 3a, 3b in the upper grid 1, and the flat parts 4.4 of the upper chord members 1a, lb.
mutually polymerized and the flat portions 5.5 of the diagonal members 3a and 3b.
are polymerized with each other through a spacer 6, and washers 7. are placed on both sides of the polymer.
8 are brought into contact with each other, and each of these members is tightened and fixed by a bolt/nut 9 passing through the center thereof.

As can be seen from FIG. 7, the spacer 6 is arranged as shown in FIG.

A rectangular seat plate 6a that fits the shape of the intersecting plane in the flat part 4.4 of the vertical and horizontal top chord members 1a and lb, and diagonal members 3a and 3.
A rectangular seat plate 6b that matches the shape of the intersecting plane of the flat part 5.5 of b is arranged and integrated so that their directions differ by 45 degrees from each other, and the spacer 6 is connected to the upper chord member 1a,
By interposing it between Ib and diagonal members 3a and 3b,
As shown in Fig. 4, the positions of the axes of the vertical and horizontal upper chord members 1a, Ib and diagonal members 3a, 3b are adjusted so that they intersect at a point P on the center line of the joint, and these members are aligned in the axial direction. When external forces are applied, the acting forces are expressed as P
Concentrate on the point.

This is to prevent moments from occurring in the Indian section.

In addition, the lower chord members 2a and 2b and the diagonal member 3a in the lower lattice 2
, 3b, the structure of the joint part with the above-mentioned upper lattice 1
The structure of the joint between the diagonal members 3a and 3b and the positional relationship of each village are essentially the same except that they are upside down.
! ! The explanation will be omitted to avoid redundancy.

After the truss having the above configuration is assembled into a predetermined form, as shown in FIG. Used with 0 attached.

In this example, brackets are placed at appropriate positions on the upper chord members 1a and lb).
11 is fixed by appropriate means such as welding or screwing, and the bracket! Panel members through 1! However, since the upper chord members 1a and lb are formed of square pipes, the bracket 11 can be easily and stably attached by surface contact. In addition, attach appropriate brackets to the joints of each village, and use this bracket and the above bracket! 1. The panel member 10 can also be fixed by both.

Also, the above panel members! 0 can also be directly fixed to the upper chord members 1a and Ib without using the bracket 11,
In this case as well, the panel member IO is the upper chord member 1a,
Since it can be brought into contact with Ib over a wide area by surface contact, it can be fixed easily and stably.

Note that the above-mentioned upper and lower chord members 1a, lb, 2a, 2b and diagonal members 3a, 3b may each be short members divided at each intersection.

[Effects of the Invention] As described above, according to the present invention, since the chord members and the diagonal members constituting the truss are formed of rectangular pipes, when attaching panel members such as roofs, floors, and walls to the truss, it is possible to The panel member can be brought into contact with the chord material over a wide area by surface contact, and can be easily and stably fixed.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the truss according to the present invention;
Figure 2 is a side view, Figure 3 is an enlarged plan view of the same main part, and Figure 4 is a side view.
The figures are a cross-sectional view taken along line A-A in Figure 3, Figure 5 is a partial perspective view of the chord member, Figure 6 is a partial perspective view of the diagonal member, Figure 7 is a perspective view of the spacer, and Figure 8 FIG. 2 is a partial side view of a state in which a panel member is attached to a truss. Ia, Ib・φ Upper chord material. 2a, 2b...lower chord material. 3a, 3b... diagonal material. Figure 1

Claims (1)

[Claims] 1. Consists of vertical and horizontal upper chord members arranged in a grid pattern, vertical and horizontal bottom chord members arranged in a grid pattern, and diagonal members that connect the intersection points of the vertical and horizontal top chord members and the intersection points of the vertical and horizontal bottom chord members, A truss characterized in that each of the chord members and diagonal members are formed of square pipes.