JPH11241446A - Truss frame material for forming curved-surface frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To build truss frame materials having bending deflection, torsional deflection and bending deflection and torsional deflection in joint metals in a curved-surface frame, in which the whole is formed in a curved surface by the trussed frame materials constituting a double-layer trussed frame and the flanges of the end sections of the truss frame materials are joined with the joint metals arranged at node places of the frame by bolts through splice plates. SOLUTION: Bending deflection, torsional deflection of bending deflection and torsional deflection are given only to an upper chord 10 and a lower chord 11 configuring the truss frame material 2, the upper chord 10 and the lower chord 11 are connected through web materials 12 and the truss frame material 2 is manufactured, or the upper chord 10 and the lower chord 11 are joined through the web materials 12 and the truss frame material 2 is assembled. Bending deflection, torsional deflection, or the bending deflection and the torsional deflection are given to the truss frame material 2, and the end sections of the upper chord 10 and the lower chord 11 of the truss frame material are united with joint metals 1 respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truss frame member for forming a curved frame composed of a multi-layer truss.

[0002]

2. Description of the Related Art The present applicant has already filed Japanese Patent Application No. Hei 8-82567 (Japanese Unexamined Patent Publication No. Hei 9-2732).
No. 16) "Curved Structure" or Japanese Patent Application No. 8-222
No.171 ・ 222172 “Junction structure of truss structure”, etc., the whole of the main material constituting the single-layer truss or multi-layer truss forms a curved surface, and the flange at the end of the main material is located at the joint position of the frame. In a curved frame structure in which bolts are connected to a metal fitting to be arranged via a splice plate, bending deformation or torsional deformation, or bending and torsional deformation is applied to the main material, and the end of such a main material is bonded to the bonding portion. An application has been filed for a technique for simplifying the shape of a joint metal part by joining to a metal part.

In other words, in the prior art, the joining plate is provided with an attachment angle corresponding to each truss frame material in accordance with the mounting condition of the truss frame material, so that the production of the joining plate is complicated and difficult to produce. However, since the truss frame material is subjected to a process such as a bending deformation or a torsional deformation, the production of the joining plate is simplified.

[0004] The present invention intends to provide concrete means for bending or torsionally deforming a truss frame material forming a curved surface frame, or for bending and torsion deformation in the above-mentioned curved frame structure. is there.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a truss frame member constituting a frame of a multi-layer truss has a curved surface as a whole, and is disposed at least at a flange of an end portion of an upper chord member of the truss frame member and a joint position of the frame. Bending and torsional deformation, or bending and torsional deformation were applied only to the upper chord and lower chord constituting the truss frame material in a curved frame structure in which the joining plate of the joining metal fittings is overlapped and bolted. After that, the upper chord and the lower chord are connected to each other through the abdominal material to assemble the truss frame, and the ends of the upper chord and the lower chord of the truss frame are respectively joined to the joint hardware. (Claim 1).

[0006] Alternatively, a joint plate of a truss frame member constituting a frame of a multi-layer truss and having a curved surface as a whole, and a flange of an end portion of an upper chord member of the truss frame member and a joint metal member arranged at a joint position of the frame. After the truss frame material is assembled by connecting the upper chord material and the lower chord material through the abdominal material in a curved frame structure which is overlapped and bolted, the truss frame material is bent, twisted, or bent. Deformation and torsional deformation are given, and the ends of the upper chord material and the lower chord material of the truss frame material are respectively joined to joint metal parts (claim 2).

In the above structure, a truss frame material assembled by giving bending deformation, torsion deformation, etc. to only the upper chord material and the lower chord material is erected between metal fittings. After the torsional deformation or the like is applied, the truss structure is erected between the metal joints, so that a truss frame material having a predetermined deformation can be easily constructed between the metal joints. Since the truss frame is subjected to bending and torsional deformation, it is not necessary to apply complicated processing to the metal joints as in the past, making it easier to manufacture metal joints. Not only the management becomes easy, but also the assembling work at the time of constructing the truss structure is simplified, and the construction cost is reduced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. FIGS. 1 and 2 show the truss frame material of the present invention, and FIGS. 3 and 4 show the torsional deformation of the truss frame material of the present invention. This is an example of a section steel. FIGS. 5 (a) and 5 (b) show the bending deformation of the truss frame material of the present invention, in which the upper and lower chord members are T-shaped steel. FIG. 6 shows an example of a metal joint in a case where the upper and lower chord members of the truss frame member are H-shaped steel.

As shown in FIGS. 1 and 6, a joint metal part 1 is disposed at a node of a curved frame, and a truss frame member 2 from another joint metal part 1 adjacent to an end of the joint metal part 1 is formed. A plurality of ends (six in FIG. 6) are joined, and each truss frame member 2 is disposed at an inclination angle θ in the vertical direction with respect to the joint hardware 1.

In the embodiment shown in FIGS. 1 and 2, the metal joint 1 is formed by connecting the upper and lower joint plates 3 to a bundle (steel pipe, H-section steel, etc.).
4 and is reinforced with a rib plate 5 disposed corresponding to each truss frame member 2. Also,
The joint end of the joint plate 3 to which the truss frame member 2 is joined is an inclined joint end 3a inclined at the inclination angle θ.

As shown in FIGS. 1 to 4, the truss frame member 2 includes an upper chord member 10 and a lower chord member 11 (T-section steel, H-section steel, angle steel, channel steel, etc.), and a bellows connecting these. (Angle material, steel pipe, etc.) 12. As shown in FIG. 2, at the joint end of the upper chord member 10, a flange is projected from the web, and this projected flange 10 a is connected to the joint plate 3.
And are fastened with bolts 14 on the inclined joining end 3a. The web of the upper chord material 10 and the rib plate 5 are fastened by bolts 14 via a splice plate 13.

At the joint end of the lower chord material 11, the flange and the web of the lower chord material 11 abut against the joint ends of the joint plate 3 and the rib plate 5, and are fastened with a bolt 14 via a splice plate 13. Alternatively, the inclined joining end 3a of the joining plate 3 is made to protrude beyond the rib plate 5, and the lower chord material 1 is placed on the projecting joining plate 3a.
Alternatively, the first flange may be placed and fastened with bolts 14.

In the above-described configuration, as shown in FIG. 1, when the center perpendiculars of the adjacent metal fittings 1 are not in the same plane, the truss frame member 2 is torsionally deformed around its axis. In the present invention, as shown in FIGS.
In a factory or the like, after the upper chord material 10 and the lower chord material 11 are subjected to torsional deformation in opposite directions to each other, the gusset plates 15 of the upper chord material 10 and the lower chord material 11 are respectively fitted to the gusset plates 15 in a state in which the torsion is matched. Then, the truss frame member 2 torsionally deformed by mounting 12 is manufactured. Next, the joining ends of the upper chord members 10 of the torsionally deformed truss frame member 2 are bolted to the joining ends of the joining plate 3 and the rib plate 5 via the splicing plate 13 and the projecting flange 10 at the site. The lower chord material 11 is bolted only to the splice plate 13 or to the protruding joint plate 3 a via the splice plate 13. If one end of the belly member 12 ′ located at both ends is attached to the rib plate 5, the truss frame member 2 having a predetermined torsional deformation is bridged between the joint hardware 1.

Alternatively, in a factory or the like, the upper chord member 10 and the lower chord member 11 are connected by a bellows member 12 to assemble the truss frame member 2 without deformation, and dedicated processing for supporting both ends of the truss frame member 2 is performed. Using a machine or the like, the truss frame member 2 is subjected to a process of giving a torsional deformation as shown in FIGS. Next, the torsionally deformed truss frame member 2 is suspended between the joint parts 1 and 1 adjacent to each other at the site, and the joint ends of the upper chord member 10 and the lower chord member 11 are joined to the joint ends of the joint plate 3 and the rib plate 5. The bolt is fastened via the protruding flange 10a, the splice plate 13, and the protruding joining plate 3a. If one end of the belly member 12 ′ located at both ends is attached to the rib plate 5, the truss frame member 2 having a predetermined torsional deformation is bridged between the joint hardware 1.

In the above configuration, the truss frame 2
Side is subjected to torsional deformation processing, and it is only necessary to provide an inclined joint end portion 3a inclined at a fixed angle in the joint metal fitting 1. Therefore, the joining angle of each truss frame member 2 is set to the conventional angle. It is not necessary to perform a correspondingly complicated processing on the metal joint, and the production of the metal joint becomes easy. Although not shown, both ends of the torsionally deformed upper chord material 10 and lower chord material 11 are inclined at an angle θ.
If the inclined joining end portion inclined by the above is formed, the joining plate 3
It goes without saying that the inclined joining end 3a can be omitted and a flat plate can be used as the joining plate 3.

Next, when the center perpendiculars of the adjacent metal fittings 1 are in the same plane, the truss frame member 2 is subjected to bending deformation. This bending deformation may be partially applied in the longitudinal direction of the truss frame member 2 or may be applied over the entire length. FIG. 5 (b) shows an example in which the truss frame member 2 is bent and deformed so as to draw a curve at an intermediate portion except for the joining end portion. Also in the case of this bending deformation, after giving bending deformation to the upper chord material 10 and the lower chord material 11, the upper chord material 10 and the lower chord material 11 are connected through the abdominal material 12 to produce the truss frame material 2. Alternatively, after assembling the truss frame member 2 having no bending deformation, the truss frame member 2 is subjected to bending deformation, and the bent truss frame member 2 is joined to the joint metal fitting 1.
To join.

In FIG. 5 (a), inclined joining ends 10b, 11b are formed at both ends of the upper chord material 10 and the lower chord material 11 which have been subjected to bending deformation, and the inclined joining end 3a of the joining plate 3 is formed. Are omitted, and the joining plate 3 is formed in a flat plate shape.

The above-mentioned joint hardware 1 is a case in which the upper chord material 10 and the lower chord material 11 are H-shaped joint plates and rib plates corresponding to the T-shaped steel.
In the case of a shaped steel, a joint structure of the joint part metal 1 and the upper chord material 10 and the lower chord material 11 as shown in FIG. 6 can be considered.

[0019]

According to the present invention, there is provided a truss frame member constituting a frame of a multi-layer truss, which has a curved surface as a whole, and is provided at least at a flange of an end of an upper chord member of the truss frame member and at a joint portion located at a joint position of the frame. In a curved frame structure that is bolted by overlapping a metal joint plate, a truss frame material assembled by giving bending deformation, torsion deformation, etc. to only the upper chord material and the lower chord material is erected between the joint hardware, or the truss assembled. After bending or torsional deformation is applied to the frame material, it is easy to construct a trussed structure in which the truss frame material with given deformation is installed between the joint hardware because it is installed between the joint hardware. Becomes possible. By performing bending and torsional deformation on the side of the truss frame material, it is not necessary to apply complicated processing to the joint hardware as in the past, making it easier to manufacture the joint hardware and improving product management. Not only becomes easier, but also the assembling work at the time of constructing the truss structure is simplified, and the construction cost is reduced.

[Brief description of the drawings]

FIG. 1 is a truss frame member forming a curved frame structure of the present invention, wherein (a) is a plan view and (b) is a side view.

FIG. 2 is a truss frame material of the present invention, (a) is a side view,
(b) is a side view of a modification, and (c) is a sectional view showing torsional deformation in order.

FIG. 3 is a perspective view showing torsional deformation of the truss frame member of the present invention.

4 (a) is a sectional view and FIG. 4 (b) is a side view partially showing the truss frame material of the present invention.

FIGS. 5A and 5B are side views showing bending deformation of the truss frame material of the present invention, wherein FIG. 5A shows a case where inclined joining ends are formed at both ends of the truss frame material, and FIG. Indicates when not to do so.

FIG. 6 is a side view showing a truss frame member of the present invention in which the metal fittings are different.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Joint hardware 2 ... Truss frame material 3 ... Joining plate 3a ... Inclined joining end part 4 ... Bundle material 5 ... Rib plate 10 ... Upper chord material 11 ... Lower chord material 12 ... Belt material 13 ... Splice plate 14 ... Bolt 15 ... Gusset plate

Claims (2)

[Claims] 1. A joint plate of a truss frame member constituting a frame of a multi-layer truss, the entire surface of the truss frame member forming a curved surface, and at least a flange of an end of an upper chord member of the truss frame member and a joint metal member arranged at a joint position of the frame. After bending and torsion deformation, or bending and torsion deformation, or bending and torsion deformation are applied only to the upper chord material and the lower chord material constituting the truss frame material, And a truss frame member which is connected to the truss frame member by assembling the truss frame member, and ends of the upper chord member and the lower chord member of the truss frame member are respectively joined to joint metal parts. Frame material. 2. A joint plate of a truss frame member constituting a frame of a multi-layer truss, the entire surface of the truss frame member forming a curved surface, and a joint metal member arranged at least at a flange of an end of an upper chord member of the truss frame member and a joint position of the frame. After connecting the upper chord material and the lower chord material via the abdominal material and assembling the truss frame material, the truss frame material is bent, twisted, or bent. A truss frame member for forming a curved frame structure, wherein the truss frame member is subjected to deformation and torsional deformation, and the ends of the upper chord material and the lower chord material of the truss frame material are respectively joined to metal joints.