JP3503283B2 - Truss structure - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates is related <br/> truss structure.

[0002]

2. Description of the Related Art A truss including a skeleton, a string material and a compression material, having a structure in which at least one end of the string material is locked to a supporting member on the skeleton side and designed to satisfy wind pressure resistance and seismic resistance. Structures have been known for some time. A cable or rod is used as the string material.

In recent years, due to the development of analysis technology, initial tension is introduced into the stringed string material, and all the constituent members forming the stringed string material are
Tension truss structures that function as tensile members are also often used.

FIG. 6 shows a conventional stringed string material 1 for a truss structure.
The partially cutaway sectional view of the connection part of a and 1b and the compression material 6 is shown. Stranded chords 1a, 1 consisting of cables or rods
In the truss structure using b, the connecting parts at the tips of the string members 1a, 1b are threaded, and the end parts 7a, 7b are attached to the threaded parts 3 as the connecting parts, and the compression member 6 It is connected to the plate portion 9 attached to the pin with a pin 8.

FIG. 7 shows a cross-sectional view of the connecting portion between the tension members 1a, 1b and the compression member 6 of another conventional truss structure.
This is an example in which the external dimensions are made smaller than in the conventional example of FIG.
The end parts 7a, 7b having a substantially semicircular cross section attached to the respective ends of the stringed materials 1a, 1b were fitted into the end parts of the compression material 6 by the pressing members 10a, 10b having the fitting parts. It is swingably attached to the connecting part 12.

In both of the examples shown in FIGS. 6 and 7, the stringed string material 1a,
Since the connecting portion at the tip of 1b is threaded, the cross-sectional area of the threaded portion 3 as the connecting portion is smaller than the cross-sectional area of the main body portion of the stringed string material, and the allowable tension of the stringed materials 1a and 1b is the threaded portion 3. It is decided by the cross section of. Therefore, it is necessary to increase the cross-sectional area of the main body of the stringed string materials 1a and 1b, and there is a problem that the designability is deteriorated.

Further, since the structure is such that the various threaded parts are connected using the threaded portion 3 at the end of the stringed materials 1a, 1b, each threaded part is large and the number of parts is large. That is, in the conventional example of FIG. 6, the end parts 7a, 7b
A total of 6 parts including the pins 8, 8 and the plate parts 9, 9 are required. In the conventional example of FIG. 7, a total of 5 parts including the end parts 7a, 7b, the holding members 10a, 10b and the connecting part 12 are required. Parts are needed.

Further, there is a problem that the overall shape of the joined component becomes considerably large and the designability is deteriorated.

[0009]

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, and to reduce the cross-sectional area of the stringed string material and the overall shape and dimensions of the joined parts, It is to improve the design of the truss structure.

[0010]

According to the present invention, two or more supporting members are attached to a skeleton, a compression member is vertically attached to the skeleton at an intermediate position between these supporting members, and a string member is a tip of the compression member. And a truss structure having a structure to be locked to the support member, at least one side of the tensioned chord member on the tip side of the compression member is made of a steel rod, and the steel rod includes a connecting portion which is a tip end of the steel rod and a main body portion. the a, the connecting portion is processed so that its sectional area is larger than the cross-sectional area of the body portion, have <br/>該張chords by the connecting portion is engaged with the compression member belt Lath structure connected to the tip of the compression material
A recess for mounting the component is provided, and the recess for mounting the connecting component is provided in the recess.
Is a mouth portion that loosens the main body of the steel rod and the connecting portion.
Has a connecting portion locking recess for locking in a movable state.
When a connecting part consisting of a pair of connecting pieces is inserted,
A special feature is that the connecting part is attached to the tip of the shrink material.
Providing a truss structure as a feature .

[0011]

Further, in the truss structure of the present invention,
The pair of connecting pieces is composed of a central portion, a rear portion, and a front portion having a screw on the outer peripheral surface, the rear portion is an insertion end into the connecting component mounting recess, and the central portion is the mouth portion and the A cap-shaped coupling component having a coupling portion locking recess and having a screw on the inner peripheral surface is screwed to the front portion.

[0013]

According to the present invention, since no threading is performed at the leading edge of the stringed member, the cross-sectional area of the main body of the stringed member can be reduced, and since no screw is used to join each part, the joined parts are compact. In addition, due to these structures, a truss structure excellent in design can be provided.

[0015]

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

FIG. 4 is a perspective view of one embodiment of the truss structure of the present invention. Support members 21 and 21 are provided on the pillar body 20, and the pillar body 2 is provided from the middle of the support members 21 and 21.
The rod-shaped compression members 6 and 6 are vertically attached to 0 to be attached, and the tips of the compression members 6 and 6 and the support members 21 and 2 are attached.
1 and 1 by stringed string materials 1a, 1b, 1c and 1d to form a truss structure. Reference numeral 5 is a tip coupling component.

The column 20 is attached to the body or forms a part of the body.

In this embodiment, the stringed string materials 1a, 1b, 1c,
Each of 1d consists of a steel rod in its entirety
The ends of these tension chords, which are the joints between the chords 1 and 21 and the compression members 6 and 6, may be steel rods, and the central portion of the tension chords may be a cable.

FIG. 1 is a cross-sectional view of the connecting portion of the truss structure body of the truss structure of FIG. 4 and the compression member, and FIG. 2 is an exploded view of the parts thereof, in which the tension members 1a and 1b are attached to the tip of the compression member 6. The locked part is shown.

As shown in the figure, at the joint between the stringing members of the truss structure using the stringing members 1a and 1b composed of cables or rods, the connecting portion 2 which is the tip of the stringing member.
Special shape processing called header processing is performed so that the diameter B of a and 2b is larger than the diameter A of the main body portions 22a and 22b of the stringed string material (A <B). Then, the connecting portions 2a, 2b at the tip of the stringed member have a larger cross-sectional area than the main body portions 22a, 22b of the stringed member.

In this way, after inserting the stringed members 1a, 1b into each of the connecting pieces 4a, 4b, the ends of each of the stringed members 1a, 1b are processed into a header to form a connecting portion 2a, 2 having a large diameter.
b, connecting pieces 4a, 4b having concave portions 23, 23 for locking the header-formed connecting portions 2a, 2b in a movable state.
The stringed string materials 1a and 1b are previously attached to.

The connecting pieces 4a, 4b are paired, and the connecting pieces 4a, 4b are put together to form the rear portion 31,
31 is fitted into the recess 24 of the compression member 6.

As shown in FIG. 1, the front portions 32, 32 of the connecting pieces 4a, 4b have screws on their outer peripheral surfaces, while
The cap-shaped coupling component 5 has a screw on its inner peripheral surface (not shown in FIG. 2), and the coupling piece 4a,
By fitting the connecting component 5 into the front parts 32, 32 of 4b from the outside by a screw action, these two connecting pieces 4a,
4b The two string members 1a and 1b are connected to each other more firmly, and the string members 1a and 1b are joined together. Reference numeral 27 is a hole, and reference numeral 30 is a central portion.

A connecting portion 2 which is the tip of the stringed string material 1a, 1b.
The outer peripheral surface shapes 50a and 50b of the portions where a and 2b are continuous with the main body portions 22a and 22b are curved, and corresponding to the outer peripheral surface shapes, the connecting portion locking recesses 23 of the connecting pieces 4a and 4b, Inner peripheral surface shape 5 of a portion where 23 is continuous with the mouth portion 5
1a and 51b are formed.

That is, the outer peripheral surface shapes 50a and 50b of the stringed members 1a and 1b and the inner peripheral surface shapes 51a and 51b of the connecting portion locking recesses 23 and 23 are substantially the same. Therefore, the load of the stringed materials 1a and 1b on the connecting component 4 is not a point load but a surface load, and the movement of the stringed materials 1a and 1b on the connecting component 4 is smooth.

FIG. 3 is a component development view of a connecting portion between the stringed members 1a and 1b and the compression member 6 of another embodiment of the truss structure of the present invention. The pair of connecting pieces 4c, 4d have concave portions 23, 23 for movably locking the connecting portions 2a, 2b of the two stringed members 1a, 1b, and the mouth portions 27, 27.
Since the position is at the open end of the pair of connecting pieces 4c and 4d, they can be connected after being processed as a header on the stringed string material.

Therefore, as in the examples shown in FIGS.
Before processing the headers on the stringed materials 1a, 1b, the connecting piece 4
Since it is not necessary to fit the stringed string materials 1a and 1b into a and 4b, and the stringed string materials 1a and 1b which have already been subjected to the header processing can be attached later, it is possible to cope with the design change of the connecting parts after the header processing of the stringed string material. There are advantages.

In both of the examples, the connecting portions 2a and 2b, which are the tips of the stringed string materials 1a and 1b, are subjected to a special shape processing called header processing in which the cross-sectional area is larger than that of the main body portions 22a and 22b of the stringed string material. Since the allowable tension of 1b is determined by the cross-sectional area of the main body of the stringed string material, the cross-sectional area of the main body of the stringed materials 1a and 1b can be made smaller than in the conventional example, and the designability is improved.

Further, by utilizing the connecting portions 2a and 2b, the tip connecting part 5 and the connecting parts 4a and 4b or the connecting part 4 are used.
Since the joint parts such as c and 4d are connected to each other, each joint part is small, and the number of parts is small. Therefore, the overall shape of the joint part is small and the compression member 6
Since the joint part can be formed with the same cross-sectional area, the size can be reduced so that the presence of the joint part is not felt, and the designability is improved.

FIG. 5 is a perspective view of another embodiment of the truss structure of the present invention, in which a plate glass 15 is fitted in a support frame constituted by the upright 16 and the eyeless 17. In addition,
The support frame forms part of the body.

A supporting member 19 is provided at a portion where the uprights 16 and the seamless eyes 17 constituting the supporting frame intersect, and a rod-shaped compression member 6 is vertically projected from the intermediate portion of the supporting frame to the supporting frame. , The support member 19 is connected to the tip of the compression member 6 by the stringed member 1 to form a truss structure. Reference numeral 5 is a tip coupling component.

[0032]

According to the present invention, at the joint portion of the stringing members of the truss structure using the stringing member composed of the cable or the rod, the header processing in which the end portion of the stringing member has a thicker cross-sectional area than the main body of the stringing member is provided. By applying a special shape processing called so called, attaching a connecting part with a concave part that fits with that special shape to the stringed string material, and connecting those connecting parts using the connecting parts, the most end parts of the stringed string material are connected together. It is a composition.

With these structures, the cross-sectional area of the main body of the stringed cord is made smaller than that of the conventional example, and the number of jointed parts for joining the corded members at the tip end position of the compression member is 5 to 5. The number of points can be reduced from 6 to 3, and the outer shape of the joint component can be made more compact, and a truss structure having excellent design can be provided.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a connecting portion between a stringing material and a compression material of the truss structure of FIG.

FIG. 2 is a component development view of a connecting portion between the stringed string material and the compressed material of the truss structure of FIG.

FIG. 3 is a component development view of a connecting portion between a stringed member and a compression member of another embodiment of the truss structure of the present invention.

FIG. 4 is a perspective view of one embodiment of the truss structure body of the present invention.

FIG. 5 is a perspective view of another embodiment of the truss structure body of the present invention.

FIG. 6 is a partially cutaway cross-sectional view of a connecting portion between a stringing material and a compression material of a truss structure of a conventional example.

FIG. 7 is a cross-sectional view of a connecting portion between a stringing material and a compression material of another conventional truss structure body.

[Explanation of symbols]

1, 1a, 1b, 1c, 1d: String material 2a, 2b: connecting part 3: Screw processing part 4, 12: Connected parts 4a, 4b, 4c, 4d: Connection element 5: Tip connection parts 6: Compression member 7a, 7b: end parts 8: Pin 9: Plate part 10a, 10b: pressing member 11: Mounting hole 15: Glass plate 16: cubic (frame) 17: Eyeless (body) 19, 21: Support member 20: Pillar (body) 22a, 22b: main body 23: Recessed portion for locking the connecting portion 24: Recessed part for connecting parts 25, 26: screw 27: Mouth 30: central part 31: rear 32: front

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-8-270140 (JP, A) JP-A-61-246453 (JP, A) JP-A-6-117050 (JP, A) 66105 (JP, U) Actual development Sho 53-44909 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04C 3/10 E04B 1/19 E04B 1/58

Claims (2)

(57) [Claims] 1. A body is provided with two or more support members, a compression member is vertically attached to the body at an intermediate position between these support members, and a stringing member is locked to the tip of the compression member and the support member. In a truss structure having a structure, at least one side of the tensioned chord member on the tip side of the compression member is made of a steel rod, and the steel rod has a connecting portion which is a tip of the steel rod and a main body portion, and the connecting portion is sectional area are processed to be larger than the cross-sectional area of the body portion, a belt lath structure該張chords are engaged with the compression member by the connecting portion, the tip of said compression member Is provided with a recess for connecting parts,
The body part of the steel rod is loosely inserted into the connecting part mounting recess.
Connecting part engagement for locking the mouth part and the connecting part in a movable state
A connecting portion composed of a pair of connecting pieces having a stop recess.
Product is inserted and the connecting part is attached to the tip of the compression material.
A truss structure characterized by being attached . 2. A pair of connecting pieces has a central portion, a rear portion,
The outer peripheral surface includes a front portion having a screw, the rear portion is an insertion end into the connecting component mounting recess, the central portion has the mouth portion and the connecting portion locking recess, and the inner peripheral surface The truss structure body according to claim 1, wherein a cap-shaped coupling component having a screw is screwed to the front portion .