JPH0711158B2 - Truss and its construction method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a truss that can be used in various buildings and the like.

[Prior Art] For example, as disclosed in Japanese Patent Application Laid-Open No. 46-14847, diagonal lines are formed by connecting the intersections of upper and lower upper chord members arranged in parallel at regular intervals and lower chord members arranged in the same manner vertically and horizontally. Various three-dimensional trusses connected to each other have been proposed and put to practical use.

However, traditionally known trusses have
It is usually relatively complicated and troublesome in manufacturing and construction, and it is remarkable especially when the truss is curved and formed in an arch shape.

Further, although many trusses are used in the above truss, the trusses are complicatedly interposed between the upper chord member and the lower chord member, so that the space between the upper chord member and the lower chord member cannot be effectively used. It is customary.

[Problems to be Solved by the Invention] The technical problem of the present invention is to facilitate the design, manufacture, and construction of a truss, to effectively use the space in the truss, and to form the truss in a curved shape. Even when doing so, it is to obtain a truss that can be easily designed, manufactured, and constructed.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the truss of the present invention comprises a first chord member and a diagonal member attached to one side of the first chord member in a state of being alternately bent in the opposite direction. A second lattice comprising a first lattice, a second chord member and a diagonal member which is attached to one side of the second chord member alternately in a state of being bent in the opposite direction; and third and fourth chord members. A plurality of the first lattices and the second lattices are arranged at the positions where the chord members and the diagonal members are attached to the first lattices.
And the second chord members in the diagonal members which are attached to the first and second chord members in a manner that they are stacked and fixed so that the second chord members are oriented in a direction intersecting each other at substantially right angles and the diagonal members project in the same direction. The third and fourth bent portions arranged at positions spaced apart from the chord members of the first and second chord members are arranged so as to intersect with the first and second chord members at an angle of about 45 degrees and at a substantially right angle to each other. The technical means of connecting and fixing the chord is used.

When the truss is curved to form an arch, etc., the first
The second chord member or the second chord member may be bent or curved in a plane including the diagonal member attached to the chord member.

Further, in the construction method of the present invention, a large number of first lattices, each of which is composed of the first chord member and the diagonal member attached to one side of the first chord member alternately in the opposite direction, are provided at predetermined intervals. Installed in parallel with the diagonal members protruding in the same direction, the second lattice consisting of the second chord member and the diagonal members attached to one side thereof alternately in the opposite direction A large number of them are oriented in a direction intersecting the first chord member at a substantially right angle, and the mounting positions of the second chord member and the diagonal member are overlapped with the mounting positions of the first chord member and the diagonal member. Then, the diagonal members are fixed so as to project in the same direction as the diagonal members in the first lattice, and are located at positions apart from those chord members in the diagonal members attached to the first and second chord members. Arranged in the bent portion so that they intersect the first and second chord members at an angle of approximately 45 degrees and in a direction substantially perpendicular to each other. Third and fourth technical means of the chords connecting fixing is employed.

[Operation] The first lattice and the second lattice can be easily designed, and at the same time, can be easily configured by connecting the first and second chord members and the diagonal members, and further, the lattice and the third lattice can be formed. Also, the truss can be easily configured by connecting with the fourth chord member, and the manufacturing and the construction are greatly simplified.

Further, the space in the truss is formed in a state in which rectangular parallelepipeds having openings in a square portion between the first chord member and the second chord member adjacent to each other are arranged, and various rectangular parallelepiped articles are It becomes possible to store in space.

When forming a truss that is curved in an arch shape, etc.
It is sufficient to bend or bend the chord member or the second chord member in a plane including the diagonal member attached thereto and adjust only the lengths of the third and fourth chord members.

Embodiments Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows the structure of a first embodiment of a truss according to the present invention, and FIGS. 2 to 4 show the first and second lattices, and the third and fourth chord members constituting the truss. Shows.

As can be seen from FIGS. 1 and 2, the first lattice 10 is a diagonal member 12, 12, ... Attached to the first chord member 11 and one side thereof in a state where they are alternately bent in the opposite direction. · Composed of and
Further, as can be seen from FIGS. 1 and 3, the second lattice 20 is provided with the second chord member 21 and the diagonal members 22, 22 attached to one side of the second chord member 21 alternately in the opposite direction. It consists of ,.

If necessary, give the first chord member 11 relatively large strength, and use the first lattice 10 as a large beam lattice and the second lattice.
20 can be a Kobayashi lattice. The first and second chord members 11 and 21 may be formed of a single member that is not connected in the middle, but they may be divided into appropriate lengths suitable for transportation or connected to the diagonal members 12 and 22. It can also be formed by dividing each position.

FIG. 4 shows a third chord member 31 and a fourth chord member 41.

The first lattice 10, the second lattice 20, the third chord member 31, and the fourth chord member 41 form a truss by connecting a plurality of them in the state shown in FIG.

That is, the first lattice 10 and the second lattice 20 have a large number of them arranged in parallel, and each of the chord members 11 and 21 and the diagonal members 12 and 22.
At the mounting position of the first and second chord members 11 and 21, the first and second chord members 11 and 21 are oriented in a direction intersecting each other at substantially right angles, and the diagonal members 12 and 22 are attached.
Are stacked and fixed so as to project in the same direction.

Also, the diagonal member 1 attached to the first chord member 11 and the second chord member 21
In the bent portions 13 and 23, which are spaced apart from those chords in 2 and 22, they intersect the first and second chords 11 and 21 at an angle of approximately 45 degrees, and are in a direction substantially perpendicular to each other. The third chord member 31 and the fourth chord member 41 arranged so as to cross each other are connected and fixed,
This constitutes a truss.

Similarly to the first and second chord members, the third chord member 31 and the fourth chord member 41 may be formed of a single member that is not connected in the middle, but may have an appropriate length suitable for transportation. It can also be formed by dividing it into two parts, or by dividing it at each connection position with the diagonal members 12, 22.

In the truss having the above configuration, the space inside the truss is such that the first chord members 11 and the second chord members 21, 11, which are adjacent to each other,
A rectangular parallelepiped having an opening at a square portion between the rectangular shape and 21 is formed in an array, and various items can be accommodated in the space. In general, various kinds of articles easily fit in a rectangular parallelepiped space, and therefore, it is extremely advantageous to accommodate them when the space inside the truss is formed in the rectangular parallelepiped shape.

When constructing the truss, a large number of the first lattices 10 are installed in parallel at a predetermined interval and the diagonal members 12 are projected in the same direction, and a large number of the second lattices 20 are arranged in parallel. The first chord member 11 and the diagonal member 22 should be attached at a position where the second chord member 21 and the diagonal member 22 are attached to each other in a direction that intersects the first chord member 11 at a substantially right angle. Overlaid and its diagonal
22 is fixed so that it projects in the same direction as the diagonal member 12 of the first lattice.

Next, the bent portions 13,2 of the diagonal members 12,22 attached to the first and second chord members at positions separated from the chord members.
3, the third chord member 31 and the fourth chord member 41, the first and second
The trusses 11 and 21 are arranged so as to intersect with each other at an angle of approximately 45 degrees and at a substantially right angle to each other, and are connected and fixed, thereby forming a truss.

In addition, in FIG. 1, the first and second chord members 11 and 21 are shown as upper chord members, and the third and fourth chord members 31 and 41 are shown as lower chord members, but they can be reversed. Is.

FIG. 5 shows a second embodiment of the present invention, in which the first chord member 11a is bent in a plane including the diagonal member 12 attached thereto.

The arch-shaped curved truss bends one chord member in this manner, and accordingly, the third and fourth chord members 31, 41
It can be formed simply by adjusting the length of the, and does not cause any particular complexity in its design, manufacturing, and construction.

Instead of bending the first chord member, there is substantially no change even if the second chord member 21 is bent, and both chord members can be bent if necessary.

In the second embodiment, the first and second chord members 11a, 21
Is the lower chord member and the third and fourth chord members 31 and 41 are the upper chord members, and other configurations are substantially the same as those of the first embodiment. Is attached and detailed description is omitted.

Further, the first chord member 11a in this embodiment can also have a relatively large strength if necessary, and further,
The first and second chord members 11a, 21 may be formed of a single member that is not connected in the middle, but may be divided into suitable lengths suitable for transportation, or at each connection position with the diagonal members 12, 22. It can also be formed by dividing into. If necessary, the above first chord material
It is also possible to make 11a into a curved shape.

According to the truss having the above-described structure, the first lattice 10 and the second lattice 20 can be easily designed, and at the same time, the first and second chord members 11 and 11a and the second chord member 21 and the diagonal member 12, It can be easily constructed by connecting it to 22 and the truss can be easily constructed by connecting those lattices 10 and 20 with the third and fourth chord members 31 and 41, which is very easy to manufacture and construct. Be converted.

[Advantages of the Invention] According to the present invention as described above, the design, manufacture, and construction of the truss can be extremely facilitated, and at the same time, the space in the truss can be effectively used, and the truss can be curved in an arch shape. Even when doing so, it is possible to easily design, manufacture, and construct.

[Brief description of drawings]

1 is a perspective view showing a first embodiment of the truss of the present invention, FIG. 2 is a perspective view of only the first lattice, FIG. 3 is a perspective view of only the second lattice, and FIG. FIG. 5 is a perspective view of the third and fourth chord members, and FIG. 5 is a perspective view of the second embodiment. 10 …… First lattice, 11,11a …… First chord material, 12,22…
… Slanting material, 13,23 …… Bending part, 20 …… Second lattice, 21,22
...... Second chord, 31 …… Third chord, 41 …… Fourth chord.

Claims (3)

[Claims] 1. A first lattice comprising a first chord member and a diagonal member alternately attached to one side of the second chord member in a state of being bent in the opposite direction, and a second chord member and one of the second chord members alternately on one side thereof. A second lattice consisting of diagonal members attached in a state of being bent in opposite directions; and third and fourth chord members, wherein a plurality of the first lattice and the second lattice are provided in the chord At the mounting position of the timber and the diagonal material, the first and second
The chord members of the diagonal members attached to the first and second chord members, which are stacked and fixed so that the chord members of the first chord member are oriented in a direction intersecting each other at substantially right angles and the diagonal members project in the same direction. The bent portion at a position away from the first and second
A truss characterized by being connected and fixed to third and fourth chord members arranged so as to intersect with the chord member of about 45 degrees and to intersect with each other at a substantially right angle. 2. The truss according to claim 1, wherein the first chord member or the second chord member is bent or curved in a plane including a diagonal member attached to the first chord member or the second chord member. 3. A plurality of first lattices each comprising a first chord member and a diagonal member attached to one side of the first chord member in a state of being alternately bent in the opposite direction. The second lattice is composed of a second chord member and a diagonal member attached to the one side of the second chord member alternately bent in the opposite direction.
The second chord member and the diagonal member are attached to the first chord member in a direction intersecting the first chord member at a substantially right angle, and the mounting positions of the second chord member and the diagonal member are overlapped with those of the first chord member and the diagonal member. A bent portion which is fixed so that the diagonal member protrudes in the same direction as the diagonal member in the first lattice, and is located at a position apart from the chord members in the diagonal members attached to the first and second chord members. First and second
The method for constructing a truss, characterized in that the third and fourth chord members, which are arranged so as to intersect with the chord member at approximately 45 degrees and at substantially right angles to each other, are connected and fixed.