JP3151125B2 - Cable holder for cable truss - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can follow changes in the direction in which a cable is stretched, and in particular, can hold the cable in a slidable manner and can stretch the cable while maintaining a chordal profile. The present invention relates to a cable receiving hardware for a cable truss.

[0002]

2. Description of the Related Art As shown in FIG. 14, the construction of a building 1 in which a large roof 2 having a framed structure is supported by two large pillars 3 to form a large space 4 under a ceiling is planned. . Then, as shown in FIG. 13, this is configured as a giant lens-shaped flat atrium glass hall (glass building), and the main structure of the glass wall 5 around the glass hall is formed by a wall cable truss 6 arranged at a predetermined pitch. It is contemplated to make up.

Referring to FIG. 12 according to an embodiment of the present invention, bundles 9 are arranged at predetermined intervals in the vertical direction on the wall cable truss 6, and each of the bundles 9 has a node. A cable receiving hardware 15 is provided as 10,
The cables 7, 8 are received by these cable receiving hardwares 15, and two sets of two cables 7, 8 are symmetrically stretched while maintaining a chordal profile. It is considered that the wall cable truss 6 configured as described above causes the respective cable pairs 7 and 8 to resist the left and right lateral forces. That is, for example, the tension of one cable pair 7 increases and resists the lateral force in a certain direction, while the tension of the cable pair 8 on the other side decreases. And to resist seismic forces.

[0004]

When the cables 7, 8 resist the lateral force, the tension applied to the cables 7, 8 changes as described above. Therefore, it is necessary to consider the following points. is there.

First, when the tension of the cables 7 and 8 changes, the tension direction of the cables 7 and 8, that is, the cables 7 and 8 change.
Since the direction of the cable 8 slightly changes, it is necessary to rotate the cable holder 15 with respect to the bundle 9 so as to follow the change in the direction in which the cables 7 and 8 are stretched.

Second, when the tension of the cables 7 and 8 changes, the cables 7 and 8 slide with respect to the fixed bundle member 9. Slide movement must be allowed. If the cables 7 and 8 cannot slide with respect to the cable receiving hardware 15, the large cables 7 and 8 due to the lateral force will not move.
The sliding force acts as a shearing force or a bending force on the bundle 9 via the cable receiving hardware 15, and there is a problem that an excessive stress is generated in the bundle 9. And considering that an excessive stress acts on the bundle material 9 as described above,
There is a need to design the bundle material 9 with high rigidity, which results in an increase in the weight of the wall cable truss 6 and an increase in material costs.

In this regard, it is conceivable to apply a low-friction material to the surface of the cable receiving hardware 15 for receiving the cables 7 and 8 to smooth the slide. However, in such a configuration, since the cables 7 and 8 are directly received by the low-friction material, the low-friction material is rubbed by the cables 7 and 8 and is peeled or worn away in a short period of time. , 8 and the cable receiving hardware 15 increase, so that the sliding movement cannot be tolerated, and the above problem cannot be solved.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a cable receiving hardware capable of sufficiently securing the direction in which the cable is stretched and the degree of freedom of sliding movement of the cable.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a cable truss cable fitting for a cable truss for allowing a change in the direction of tension of a cable and sliding movement while maintaining a string-like profile. , A saddle that is rotatably attached to a bundle of cable trusses, and that has a fitting groove that curves around the center of rotation along the cable tension direction, and is fitted to the saddle, A cable receiving member having a fitting projection slidably fitted in the fitting groove on the inner side, and a surface of the fitting projection covered with a low friction material. .

[0010]

The operation of the present invention will be described. When the tension of the cable changes due to the resistance to the lateral force and the direction in which the cable is stretched changes, or the sliding movement occurs, the saddle of the cable receiving hardware is moved in the direction in which the cable is stretched. Accordingly, the cable receiver also rotates.

On the other hand, since the low friction material is applied to the surface of the fitting projection of the cable receiver fitted into the fitting groove of the saddle, the two slide relatively smoothly. That is, the cable slides around the center of rotation of the saddle relative to the saddle integrally with the cable receiver.

Thus, in the cable receiving hardware,
The change in the direction in which the cable is stretched and the sliding movement thereof are allowed. Therefore, the lateral force resistance action by the cable is reliably exerted without causing excessive stress on the bundle.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. Here, the glass wall 5 already mentioned in FIGS.
It is assumed that the wall cable truss 6 is used.

The wall cable truss 6 has two pairs of cables 7, 8 which are respectively stretched between the upper fixing end 11 and the lower tensioned end 12 two by two. Both cable pairs 7, 8
Are the nodes 10 set on the bundles 9 arranged at predetermined intervals.
Thus, a change in the stretching direction and sliding movement are allowed and held, whereby the string is stretched while maintaining a chordal profile. However, both profiles are in a reverse chord shape, and one cable pair (inner cable pair) 7 of both cable pairs 7 and 8 is juxtaposed in a plane orthogonal to the paper surface of FIG. Cable pairs (outer cable pairs) 8 are juxtaposed in a plane parallel to the paper surface of FIG. And
The two cable pairs 7, 8 are connected in the middle by the inner cable pair 7, 8.
The outer cable pairs 8, 8 intersect with each other between 7.

The weight of the wall cable truss 6 is supported by the lower structure 13, and the ridge 14 constituting the wall cable truss 6 is raised when the large roof 2 receives a lateral force in the short side direction. It also functions as a compression material that restricts rotation.

FIGS. 1 to 3 show one of the cable receiving hardwares 15 provided at each of the nodes 10. The cable receiving hardware 15 is provided with a saddle 20 rotatably mounted by a shaft 18 in a groove 17 of an arm 16 protruding from the side surface of the bundle 9 of the wall cable truss 6, and slides on the saddle 20. And a cable receiver 30 fitted freely.

The saddle 20 is, as shown in FIGS.
At the base of a substantially fan-shaped body 21 along the direction in which the cables 7 and 8 are stretched, a shaft hole 22 for rotatably attaching to the bundle 9 is provided at the base of the body 21. It has a fitting groove 23 that curves at a constant curvature along the direction. The fitting groove 23 is for slidably fitting the cable receiver 30 and is formed in a dovetail type so that the fitting protrusion 32 of the cable receiver 30 cannot be detached.
However, it has a side wall 24 and a bottom surface 25 for holding it movably in the circumferential direction.

The bottom surface 25 of the fitting groove 23 functions as a guide surface formed with a constant curvature for guiding the cable receiver 30. 26, a glue plate 27 is bonded.

On the other hand, as shown in FIGS. 9 to 11, the cable receiver 30 has a U-shaped cross section which is curved along the outer shape of the body 21 and the fitting groove 23.
And a fitting protrusion 32 provided on the inner peripheral side of the cable receiving main body 31 in the form of a protrusion protruding inward from the U-shaped base. The fitting protrusion 32 is a portion which is slidably fitted into the fitting groove 23 of the saddle 20 in the form of a dovetail groove, and has the same curvature as the fitting groove 23. A Teflon resin (trade name) 33 is coated on the surface of the fitting projection 32 that fits with the fitting groove 23 in the dovetail form in order to perform a smooth sliding action. The low-friction processed region 33 is shown as a solid portion in FIG.

At both ends of the cable receiver 30, bolt holes 34 are formed, and an L-shaped stopper 36 can be attached by screwing a bolt 35.

As shown in FIG. 2, the saddle 20 and the cable receiver 30 configured as described above are
The fitting projections 32 are inserted into the fittings. Further, when tension is introduced into the cables 7 and 8,
The stoppers 36 are fixed to both ends of the bolts 35 by bolts 35. The base of the saddle 20 is inserted into the groove 17 of the arm 16 of the bundle 9 of the wall cable truss 6 as described above, and the shaft 18 is passed through the shaft hole 22 so that the entire assembly, that is, the cable receiving metal 15 Is rotatably mounted.

Cable receiving hardware 1 provided on each bundle 9
1 and 4, cables 7 and 8 are passed through the cable 5. Thereafter, by operating a jack (not shown) at the lower tensioned end 12, the cables 7, 8 are moved.
Is performed. At this time, the saddle 20 rotates around the shaft 18 according to the direction in which the cables 7 and 8 are stretched,
Accordingly, the cable receiver 30 also rotates.

After the above tensioning operation, the stopper 36 is removed. Then, between the cables 7, 8 and the cable receiving hardware 15, a change in the direction in which the cables are stretched and a sliding movement thereof are allowed. Since the gliding plate 27 is provided in the fitting groove 23 of the saddle 20 and the surface of the fitting projection 32 of the cable receiver 30 is provided with the low friction material 33, the two slide relatively smoothly. Therefore, cable 7,
No relative slip occurs between the cable 8 and the cable receiver 30,
The cables 7 and 8 are integrated with the cable receiver 30 and relatively slide with respect to the saddle 20, so that the bundle 9
The lateral force resistance action of the cables 7 and 8 can be reliably exerted without causing excessive stress on the cable.

[0024]

In summary, according to the cable receiving hardware for a cable truss of the present invention, when the tension of the cable changes due to the resistance to the lateral force and the direction of the tension changes or the sliding movement occurs, the cable receiving hardware is used. The metal saddle rotates according to the direction in which the cable is stretched, and the cable receiver also rotates together with the saddle. In addition, a low-friction material is applied to the surface of the fitting protrusion of the cable receiver fitted in the fitting groove of the saddle, and the two slide relatively smoothly. For this reason,
In the cable receiving hardware, the change in the direction in which the cable is stretched and the sliding movement thereof can be sufficiently tolerated.

Therefore, according to the present cable receiving member, it is possible to reliably exert the lateral force resistance action of the cable without causing excessive stress to the bundle.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of a cable receiving member for a cable truss of the present invention.

FIG. 2 is an exploded perspective view of a cable receiving hardware for a cable truss according to the present invention.

FIG. 3 is a front view showing a cable receiving hardware for a cable truss according to the present invention.

FIG. 4 is a view showing I of the cable receiving hardware for the cable truss shown in FIG. 3;
It is a V-IV sectional view.

FIG. 5 is a plan view showing a saddle of the cable receiving hardware for the cable truss of FIG. 3;

FIG. 6 is a front view of the saddle of FIG. 5;

FIG. 7 is a sectional view of the saddle of FIG. 5;

FIG. 8 is a view showing a glint plate provided on the saddle of FIG. 5;

FIG. 9 is a front view showing a cable receiver of the cable receiving hardware for the cable truss shown in FIG. 3;

FIG. 10 is a sectional view of the cable receiver of FIG. 9;

FIG. 11 is a view showing a stopper provided on the cable receiver of FIG. 9;

FIG. 12 is a view showing the entire wall cable truss.

FIG. 13 is a view showing a glass wall by a currently planned wall cable truss.

FIG. 14 is a diagram illustrating a glass building by the wall cable truss of FIG. 13;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Building 2 Large roof 3 Large pillar 4 Large space 5 Glass wall 6 Wall cable truss 7 Inner cable 8 Outer cable 9 Bundling material 10 Node 11 Upper fixing end 12 Lower tensioned end 13 Lower structure 14 Vertical stand 15 Cable receiving hardware 16 Arm 17 Groove 18 Shaft 20 Saddle 21 Body 22 Shaft hole 23 Fitting groove 24 Side wall 25 Bottom surface 26 Fitting recess 27 Glight plate 30 Cable receiver 31 Cable receiving body 32 Fitting protrusion 33 Teflon resin 34 Bolt hole 35 Bolt 36 Stopper

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Rafael Vinori 2-4-1, Marunouchi, Chiyoda-ku, Tokyo Inside Rafael Vinori Architect Office (72) Inventor Kunio Watanabe 5-9-9 Hiroo, Shibuya-ku, Tokyo (72) Inventor Yasuhisa Hishijima 18-19 Miyamachi, Kawaguchi-shi, Saitama Kawaguchi Metal Industry Co., Ltd. (72) Inventor Tawara 2-3 2-3 Kandajicho, Chiyoda-ku, Tokyo Obayashi Corporation Tokyo Head Office (56) References JP-A-60-238556 (JP, A) JP-A-5-214846 (JP, A) JP-A-6-248702 (JP, A) JP-A-7-42238 (JP, A) A) JP-A-7-119209 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04B 1/34 E04B 7/02 511

Claims (1)

(57) [Claims] A cable truss fitting for a cable truss for allowing a change in the tension direction of the cable and sliding movement while maintaining a chord-like profile, the cable truss being attached to a cable truss bundle so as to be freely rotatable; A saddle provided with a fitting groove that curves along the cable tension direction on an outer portion around the rotation center; fitted in the saddle, and slidably fitted in the fitting groove on the inner portion thereof; A cable receiving fitting for a cable truss, comprising: a fitting projection having a fitting projection, and a surface of the fitting projection covered with a low friction material.