JP5597614B2 - Brace structure - Google Patents

Description

  The present invention relates to a brace structure used for a building or the like.

  As a conventional brace structure, for example, there is a structure as shown in FIG. (See Patent No. 4084315.)

  In the conventional brace structure 80 shown in FIG. 8, one end of the brace 34 is connected to one spherical bearing 31, and the other end of the brace 34 is connected to the other spherical bearing 32 via a damper 36.

  The damper is, for example, a hydraulic damper, and when an external force such as an earthquake or wind sway acts on the building structure and a sway occurs, a damping force in the opposite direction to the sway is generated, and the building structure It is a device that reduces shaking.

  When a solid member is used for the brace, the material cost increases and the cost becomes high. Therefore, a hollow cylindrical member is generally used.

  A plate-like circular member 81 is used as a joining member at the end of the brace 34 on the spherical bearing 31 side, and the circular member 81 is joined to the spherical bearing 31 by screw connection or the like.

  In the brace structure 80, one spherical bearing 31 is connected to a bracket 27 installed at the joint between the column 21 and the beam 25, and the other spherical bearing 32 is installed at the junction between the column 22 and the beam 24. By being connected to the bracket 28, it is connected to the building structure.

  FIG. 9 is a partially enlarged cross-sectional view of FIG. The circular member 81 is joined to the end of the brace 34, the circular member 81 is joined to the spherical bearing 31, and the spherical bearing 31 is joined to the bracket 27.

  By installing this brace structure, when external forces such as earthquake and wind sway act on the building structure and the vibration occurs, the brace structure reduces the shaking of the building structure, so the building structure is protected. The

Patent No. 4084315

  However, in the conventional brace structure, when a large tensile force is applied to the brace structure, the plate-like circular member provided at the end of the brace is bent and deformed, so that the joint portion of the circular member with the brace There is a problem that excessive stress is generated, and deformation or breakage occurs.

  And the joint part with the brace of the said circular member deform | transformed or damaged, and there existed a problem that the performance as a brace structure could not fully be exhibited.

  In order to prevent deformation and breakage of the joint portion of the circular member with the brace, there is a method of increasing the thickness of the cylindrical portion of the brace. However, since the amount of material used increases, the manufacturing cost increases. There is a problem that.

  Therefore, in view of the above-mentioned problems, the present invention causes excessive stress to be generated at the joint between the brace and the brace of the joining member provided at the end of the brace when a tensile force is applied to the brace structure. It is an object of the present invention to prevent at a low cost that the performance of the brace structure cannot be sufficiently exhibited due to occurrence of damage.

  In order to solve the above problems, the present invention provides a brace structure in which one end of a brace is connected to one spherical bearing and the other end of the brace is connected to the other spherical bearing via a damper. A substantially frustoconical joining member is joined to the end portion.

  The joining member is hollow, and a rib extending in a radial direction is formed on a joining surface with the brace.

  Further, the joining member is characterized in that two or more plane portions are formed on the side surface thereof.

  According to the present invention, in the brace structure in which one end of the brace is connected to one spherical bearing and the other end of the brace is connected to the other spherical bearing through the damper, the brace is connected to the end of the brace on the spherical bearing side. By joining the substantially frustoconical joining member, bending deformation of the joining member is suppressed, so that excessive stress is not generated at the joining portion with the brace of the joining member, and the joining portion with the brace of the joining member Therefore, it is possible to prevent the performance of the brace structure from being sufficiently exhibited.

  In addition, the brace structure of the present invention is hollow, and by joining a joining member in which ribs extending in the radial direction are formed on the joining surface with the brace, the amount of material used for the joining member is reduced, and deformation or Since breakage can be prevented, it can be prevented at low cost that the performance of the brace structure cannot be sufficiently exhibited.

  In addition, the brace structure of the present invention can prevent deformation and breakage while reducing the amount of material used for the joining member by joining the joining member having two or more plane portions formed on the side surface. For this reason, it is possible to prevent the performance of the brace structure from being sufficiently exerted, and in addition, it becomes easy to join the joining member and the spherical bearing, so that workability is also improved.

It is a brace structure whole figure concerning an embodiment of the invention. It is a partial expanded sectional view of FIG. FIG. 3 is a diagram showing a configuration of a joining member 41. It is a figure which shows the structure of the joining member 43 of another embodiment. It is a figure which shows a spherical bearing. It is a side view with a joining member 43 hidden line. FIG. 6 is a view in which a joining member 43 is sandwiched between fixing members 50. It is the whole conventional brace structure figure. It is a partial expanded sectional view of FIG.

  The best mode for carrying out the brace structure according to the present invention will be specifically described below with reference to the drawings.

  FIGS. 1 to 3 are views referred to for describing the brace structure according to the first embodiment of the present invention. The same reference numerals are used to describe the same members as those in the conventional brace structure.

  As shown in FIG. 1, the brace structure 20 according to the present embodiment is similar to the conventional brace structure 80 in that one end of the brace 34 is connected to one spherical bearing 31 and the other end of the brace 34 is connected to the damper 36. To the other spherical bearing 32.

  In the brace structure 20 according to the present embodiment, as in the conventional brace structure 80, one spherical bearing 31 is connected to the bracket 27 installed at the joint between the column 21 and the beam 25, and the other The spherical bearing 32 is connected to a bracket 28 installed at the joint between the column 22 and the beam 24, thereby being connected to the building structure.

  However, in the conventional brace structure 80, the plate-like circular member 81 is joined to the end of the brace 34 on the spherical bearing 31 side, whereas in the brace structure 20 according to the present embodiment, a substantially conical shape is provided. It differs in that the trapezoidal joining member 41 is joined.

  As a result, excessive stress is not generated at the joint portion of the joining member with the brace, and deformation and damage of the joining member can be prevented, thereby preventing the performance of the brace structure from being sufficiently exhibited. Can do.

  FIG. 2 is a partially enlarged cross-sectional view of the brace structure of FIG. The joining member 41 is joined to the end of the brace 34, the joining member 41 is joined to the spherical bearing 31, and the spherical bearing 31 is joined to the bracket 27.

  FIG. 3 is a view showing the structure of the joining member 41. FIG. 3A is a view of the joining member 41 as viewed from the spherical bearing 31 side in the axial direction of the spherical bearing 31. FIG.3 (b) is BB sectional drawing of Fig.3 (a). FIG. 3C is a view of the joining member 41 as viewed from the brace 34 side in the axial direction of the brace 34.

The joining member 41 has a rib 41a. The rib 41a extends radially inward from the outer periphery of the surface to be joined to the brace of the joining member 41. The contact portion 41 b of the joining member 41 is joined to the end portion of the brace 34. The joining member 41 has a frustoconical side part 41c. The screw part 41d is screw-coupled with the screw part of the spherical bearing. The joining member 41 has a hollow portion 41e inside. The rib 41a is provided in order to reinforce the strength of the joining member 41 that is reduced by making the inside hollow.

  By providing the hollow portion 41e in the joining member 41, it is possible to maintain strength and prevent deformation and breakage by providing the rib 41a while reducing the amount of material, so that the performance of the brace structure can be sufficiently exhibited. It can be prevented from disappearing.

  According to the first embodiment of the present invention, since the joining member 41 is joined to the brace structure, deformation and breakage can be prevented while reducing the amount of material used for the joining member. It is possible to prevent the performance of the brace structure from being exhibited sufficiently at low cost.

  FIGS. 4 to 6 are views referred to for explaining the brace structure according to the second embodiment of the present invention.

  FIG. 4 is a diagram showing a configuration of the joining member 43 used in the brace structure according to the second embodiment of the present invention. FIG. 4A is a view of the joining member 43 as seen from the spherical bearing 31 side in the axial direction of the spherical bearing 31. FIG. 4B is a side view of the joining member 43. FIG. 4C is a view of the joining member 43 as viewed from the brace 34 side in the axial direction of the brace 34.

  The joining member 43 also has a rib 43a. The contact portion 43 b of the joining member 43 is joined to the end portion of the brace 34. The joining member 43 has a frustoconical side part 43c. The screw part 43d is screw-coupled with the screw part of the spherical bearing. The joining member 43 has a hollow portion 43e inside. And the joining member 43 has the plane part 43f.

  As shown in FIG. 5, the spherical bearing 31 includes a spherical portion 31a, a cylindrical portion 31b, and a screw portion 31c. The spherical bearing 31 is joined to the joining member 43 by screwing the threaded portion 31c to the threaded portion 43d of the joining member 43 shown in FIG.

  The screw connection between the screw portion 31c and the screw portion 43d is made by rotating either the spherical bearing 31 or the joining member 43. When one of the screw portions 31c and 43d is rotated, the other also follows and rotates. Joining operation becomes difficult.

Therefore, as shown in FIG. 7, when the screw portion 31 c of the spherical bearing 31 and the screw portion 43 d of the joining member 43 are screwed together, a fixing member 50 is used to fix the joining member 43. 7A and 7B are views showing a state in which the joining member 43 is fixed by the fixing member 50, in which FIG. 7A shows a front view and FIG. 7B shows a side view. As shown in FIG. 7A, the fixing member 50 has two flat portions 50a corresponding to the two flat portions 43f of the joining member 43, and can be fixed by sandwiching the joining member 43 therebetween. . Accordingly, since only the spherical bearing 31 can be rotated in a state where the joining member 43 is fixed, the screw connection between the screw portion 31c and the screw portion 43d can be facilitated, that is, the spherical bearing 31 and the joining member. 43 can be easily joined. In addition, it is possible to facilitate the tightening operation of the nut 48 that is a member provided to prevent rattling of the joint portion between the spherical bearing 31 and the joint member 43.

  According to the second embodiment of the present invention, the joining member 43 is joined to the brace structure, thereby reducing the amount of material used for the joining member, preventing deformation and breakage, and preventing the spherical surface. The fastening operation of the bearing and the joining member can be facilitated.

In addition, in embodiment of this invention, although the joining member was hollow and the thing with a rib was demonstrated, the inside of a joining member may not be hollow but may be solid.

  Further, in the drawings, the portion of the joining members 41 and 43 joined to the spherical bearing 31 is a female screw, and the spherical bearing 31 is provided with a male screw. The part joined to the bearing may be a male thread, and the spherical bearing may be provided with a female thread.

  Further, the joining member and the spherical bearing may be joined by means other than screws, such as welding.

  In the drawings, the shape of the joining member is a combination of the cylindrical portions at both ends of the truncated cone, but the cylindrical portions may not be provided, or may be provided only on one side.

  In the drawings, the bonding member is shown in which the flat portion is provided at the end portion on the spherical bearing side, but the flat portion may be provided anywhere on the side surface.

20 Brace structure 21 Column 22 Column 24 Beam 25 Beam 27 Bracket 28 Bracket 31 Spherical bearing 31a Spherical section 31b Cylindrical section 31c Screw section 32 Spherical bearing 34 Brace 36 Damper 38 Cylinder 39 Piston rod 41 Joining member 41a Rib 41b Side section 41c 41d Screw part 41e Hollow part 43 Joining member 43a Rib 43b Contact part 43c Side face part 43d Screw part 43e Hollow part 43f Flat part 48 Nut 50 Fixing member 80 Brace structure 81 Circular member

Claims (2)

  In a brace structure in which one end of the brace is connected to one spherical bearing and the other end of the brace is connected to the other spherical bearing via a damper, the brace has a substantially frustoconical shape on the side surface at the end of the spherical bearing side. A brace structure characterized by joining a joining member in which two or more plane portions are formed. The brace structure according to claim 1, wherein the joining member is hollow, and a rib extending in a radial direction is formed on a joining surface with the brace.