JP2001336305A - Vibration control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration control device, by which the speed of the welding works of gusset plates to a column and a beam and the mounting works of dampers to the gusset plates is increased by roughly molding the gusset plates welded to the column and beam sides and workability is improved. SOLUTION: In the vibration control device, in which a large number of column materials 1 erected in the vertical direction are arranged before and behind and left and right, a large number of beam materials 2, 3 are built among the adjacent two column materials, rectangular beam-column frames 4 continued up and down by the two column materials and the two upper-lower beam materials, damping devices 12, in which braces 10 and the dampers 11 are joined in series, are disposed on diagonals in the beam-column frames respectively, and both ends of the damping devices are connected to the crossing sections A, B of the column materials and the beam materials through spherical bearings and the gusset plates respectively, brackets BR are installed at both ends of the damping devices, the first gusset plates 15 are connected to the brackets through the spherical bearings 13 while the second gusset plates 14a, 14b are mounted at the crossing sections of the column materials and the beam materials, and the first and second gusset plates are joined, conforming axes.

Description

DETAILED DESCRIPTION OF THE INVENTION

TECHNICAL FIELD The present invention relates to a vibration damping device,
More specifically, a large number of pillars standing vertically are arranged in front, rear, left and right, and a number of beams are erected along the vertical direction between two adjacent pillars, and two pillars and two upper and lower pillars are provided. TECHNICAL FIELD The present invention relates to a vibration control device that performs a damping function against an external force such as an earthquake and performs vibration control on the structure in a building that forms a rectangular column-beam frame that is vertically continuous with a beam material.

2. Description of the Related Art A large number of vertical pillars and a large number of vertical pillars are provided between two adjacent pillars to form a large number of vertical pillars along the vertical direction. High-rise buildings and high-rise towers are known as structures, and external vibrations such as earthquakes act on these structures,
When a strong wind acts on the structure, there are problems such as the entire structure swinging and a bending moment being generated in the column material, and the upper part of the structure being bent. For this reason, conventionally, a vibration damping device combining a brace and a damper is mounted on the rectangular column-beam frame to attenuate an external force such as an earthquake to prevent the structure from swaying. As this vibration damping device, for example,
The one disclosed in Japanese Patent Application No. 54677 has been developed. In this vibration damping device, as shown in FIG. 4, a beam-to-column frame 4 is composed of upright column members 1, 1 and upper and lower beam members 2, 3 laid between adjacent column members 1, 1. Gusset plates 17, 17 are connected to the intersection of the beam-column frame 4, and a damping device 12 comprising a brace 10 and an attenuator 11 such as a damper is diagonally connected to the gusset plates 17, 17. It is. In this case, the brace 10 and the attenuator 11
The spherical bearings 13a and 13b are provided at each end of the damping device 12, and the damping device 12 is coupled to the upper and lower gusset plates 17 and 17 via the spherical bearings 13a and 13b.

In the above-described conventional apparatus, the gusset plates 17, 17 have spherical bearings 13a, 1a.
3b, the gusset plate 17 needs to be formed with holes for fitting the spherical members of the spherical bearings 13a, 13b. Tolerance is required. This is because if the hole is small, the sphere will not enter, and if it is too large, the sphere will rattle, and the vibration control effect with a small amplitude such as a small earthquake or wind will not be exhibited. Therefore, conventionally, the gusset plate 17 is processed by a precision processing maker. On the other hand, the column member 1 and the beam members 2 and 3 are manufactured by a steel maker, and the welding of the gusset plate 17 to the column member 1 and the beam members 2 and 3 is also performed by the steel frame maker. The gusset plate 17 is sent to a steel maker, and then a welding process is required on the steel maker side. As a result, the welding period of the gusset plate 17 to the column 1, the beams 2 and 3 is delayed,
There is a problem that the installation period of the damping device 12 is also delayed.
Therefore, an object of the present invention is to make it possible to roughly form a gusset plate to be welded to a column or a beam side, thereby speeding up a work of welding a gusset plate to a column or a beam and an operation of attaching an attenuator to the garat plate. Another object of the present invention is to provide a vibration damping device capable of improving workability.

In order to achieve the above-mentioned object, the present invention provides a method of arranging a large number of vertically standing pillars in front, rear, left and right, and providing a large number of beams between two adjacent pillars. Erection, two columns and two upper and lower beams to form a vertically continuous rectangular column-beam frame, and a brace and an attenuator are connected in series on a diagonal line in the column-beam frame, respectively. In a vibration damping device in which a damping device connected is provided and both ends of the damping device are connected to the intersection of the column member and the beam material via a spherical bearing and a gusset plate, respectively, A bracket is provided, a first gusset plate is connected to the bracket via a spherical bearing, and a second gusset plate is provided at an intersection of the column member and the beam member. Are combined while being matched.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a simplified model in which the vibration damping device of the present invention is used for a structure such as a high-rise building or a high-rise tower. In a high-rise building or the like, a large number of pillars 1, 1 standing vertically are arranged in front, rear, left and right, and a large number of beams 2, 2 are vertically arranged between two adjacent pillars 1, 1.
3, two pillars 1, 1 and two upper and lower beams 2, 3
These form a column-beam frame 4 having a rectangular frame structure that is vertically continuous. In the present invention, a damping device 12 in which a brace 10 and an attenuator 11 are connected in series on a diagonal line in the single beam-column frame 4 is disposed in a structure, and both ends of the damping device 12 are provided. For pillars 1 and 1 and beams 2 and 3 respectively.
Gusset plates 14a, 14b at each intersection A, B
Are connected via The damper 11 includes a cylinder and a piston rod movably inserted into the cylinder via a piston. The outer end of the piston rod is connected to the intersection A, and one end of the brace 10 is connected to the cylinder in series. The other end of the brace 10 is connected to the intersection B. As shown in the model of FIG. 1, the damping device of the present invention includes a damping device 12 in which an attenuator 11 such as an oil damper and a brace 10 are connected diagonally in a column-beam frame 4 having a rigid frame structure. When the external force such as an earthquake or a strong wind acts on the structure, that is, the beam-column frame 4, the damper 11 is arranged in a diagonal direction, in other words, the brace 1.
It expands and contracts along the 0 axis direction, and the external force is attenuated by the damping function at that time to dampen the structure. On this occasion,
The attenuator 11 attenuates not only a horizontal input but also a vertical load on the column members 1 and 1. More specifically, when an interlayer deformation such as a deflection occurs in a structure such as a high-rise building due to an earthquake, a strong wind, or the like, the column-beam frame 4 having the rigid frame structure is deformed in a substantially parallelogram shape. Is moved diagonally, and the attenuator 11 is expanded and contracted in the same direction to generate a damping force. The point where the external force acts on the column-beam frame 4 is at the intersection between the column member 1 and the beam members 2 and 3 at the intersections A and B, so that a bending moment is generated for the column members 1 and the beam members 2 and 3. Do not let. In addition, as described later, since the attachment to the intersections A and B is performed by pin connection by the spherical bearings 13, 13, the force at the intersections A and B is released by the swing of the sphere in the spherical surface, and No excessive load acts on the brace 10, and no bending force acts on the brace 10. Similarly, since the spherical bearings 13 can freely follow the deformation in the direction perpendicular to the spherical surface, no bending force acts. Next, the mounting structure of the damping device 12 according to the present invention will be described in detail. First, forked brackets BR, BR are integrally connected to the end of the brace 10 and the end of the attenuator 11, respectively.
First gusset plates 15, 15 are rotatably connected to R, BR via spherical bearings 13, 13, respectively. On the other hand, each of the intersections A and B of the beam-column frame 4 has a plate-shaped second gusset plate 1 manufactured and welded by a steel frame maker.
4a and 14b are respectively connected. And the first
Gusset plate 15 of the second gusset plate 14
a, 14b and each gusset plate 14
a or auxiliary plates 16 for holding on both upper and lower surfaces of 14b and 15;
The auxiliary plates 16 and 19 and the gusset plates 14a or 14b and 15 are fastened with bolts b and nuts N. First gusset plate 1
5 is preferably coupled to the second gusset plates 14a, 14b with their axes aligned. Therefore, a groove having a U-shaped cross section may be formed at the end of one gusset plate, and the end of the other gusset plate may be inserted into the groove and pin-coupled. The first gusset plate 15 has a hole, and the spherical bearing 18 is rotatably fitted in the hole so that the spherical bearing 13 is integrally connected to the first gusset plate 15, and the spherical body 18 is attached to the bracket B.
The first gusset plate 15 is extended to the bracket BR by being inserted into the R and pivotally supported. The first gusset plate 15, the spherical bearing 13, and the damping device 12 are manufactured in advance by a precision machining maker and are integrally assembled. It is also possible to use a pin instead of the spherical bearing 13. On the other hand, the second gusset plates 14a, 14
b is processed by a steel maker and welded to the column 1 and the beams 2 and 3 in advance. Therefore, at the construction site, the beam-column frame 4 manufactured by the steel maker is sent out from the steel maker side, and the attenuator 12 to which the first gusset plate 15 is assembled is sent out from the precision processing maker side. Are docked. That is,
At this time, at the construction site, a construction worker aligns the attenuator 12 diagonally with respect to the second gusset plates 14a, 14b, and attaches the first gusset plates 15, 15 to the second gusset plates 14a, 14b, respectively. Join.

According to the present invention, the first gusset plate is provided on the brackets on both ends of the damping device via the spherical bearing, so that the damping device, the spherical bearing and the bracket can be formed at once.
The first gusset plate can be manufactured and assembled by a precision machining maker. Therefore, the damping device, which has been precisely machined in advance, can be pin-coupled to the second gusset plate provided at the intersection of the beam-column structure via the auxiliary plate, so that the assemblability of the damping device is improved and the construction period is shortened. I can do it. Further, the second gusset plate does not need to be provided with a hole for a spherical bearing, so that it can be formed relatively roughly, and can be easily manufactured by a steel maker and welded to a column member and a beam member, so that the manufacturing cost is low. Yes, assemblability is improved and the construction period can be shortened.

[Brief description of the drawings]

FIG. 1 is a partial front view of a vibration damping device according to the present invention.

FIG. 2 is a partially enlarged front view of FIG. 1;

FIG. 3 is a vertical sectional front view taken along line XX of FIG. 2;

FIG. 4 is a partial front view of a conventional vibration damping device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Column material 2 and 3 Beam material 4 Column and beam frame 10 Brace 11 Damper 12 Damper 13 Spherical bearing 14a, 14b 2nd gusset plate 15 1st gusset plate A, B Intersection BR Bracket

Claims (1)

[Claims] A large number of pillars standing vertically are arranged in front and rear, left and right, a large number of beams are bridged between two adjacent pillars, and two pillars and two upper and lower beams are used. A rectangular column-beam frame that is continuous vertically, and a damping device in which a brace and an attenuator are connected in series on a diagonal line in the column-beam frame are arranged, and both ends of the damping device are respectively column materials. In the vibration damping device which is connected to the intersection of the beam member and the spherical member via a gusset plate, brackets are provided at both ends of the damping device, and the first gusset plate is connected to the bracket via the spherical bearing. And the second at the intersection of the column and beam
Wherein the gusset plates are provided, and the first and second gusset plates are coupled while their axes are aligned.