JPH04111870U - Building vibration damping structure - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a vibration damping structure for buildings that exhibits vibration damping performance against large vibrations such as earthquakes, as well as sufficient vibration damping performance against minute vibrations such as wind. to do. [Structure] A diagonal member 9 is hung diagonally from the intersection portion 7 of the two pillar members 5 and the beam 1 corresponding to the ceiling. An extruded lead damper 15 is disposed between the lower ends of the two diagonal members 9 connected on the horizontal member 3 and both pillar members 5. A viscous shear damper 13 is arranged between the lower ends of the two diagonal members 9 and the horizontal member 3.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is equipped with a vibration damper to absorb and attenuate vibrations that act on buildings. Concerning vibration damping structures of buildings.

0002

[Conventional technology]

A vibration damping structure for buildings equipped with vibration dampers that absorb and attenuate vibrations that act on buildings. As a structure, we used an extruded lead damper as disclosed in Japanese Patent Publication No. 58-30470. It is known that the pillar is placed between one of two pillars spaced apart from each other and the wall. There is.

0003

[Problem that the idea aims to solve]

However, conventional vibration damping structures cannot cope with the large vibrations that act on buildings due to large earthquakes. Although dampers effectively exhibit vibration damping performance against The damping performance is effective against small vibrations due to looseness in the damper's mounting part. There was a problem with not performing well. This invention was devised in view of the above circumstances, and the purpose of this invention is to prevent earthquakes, etc. Demonstrates vibration damping performance against large vibrations, and also damps against minute vibrations such as those caused by wind. To provide a vibration damping structure for a building equipped with a vibration damper that can fully demonstrate its performance. It is in.

0004

[Means to solve the problem]

(Structure) In order to achieve the above object, the present invention consists of two pillars spaced apart from each other. It is hung diagonally from both intersections with the beams of the ceiling equivalent part, and the lower ends are connected on the horizontal material. two diagonal members, and a lead press placed between the lower ends of the two diagonal members and both pillar members. a viscous shear disposed between the damper and the lower ends of the two diagonal members and the horizontal member; It is characterized by comprising a damper.

[0005] (Function) When minute vibrations are applied to a building due to wind, etc., the ceiling phase may be affected by the minute vibrations. A small relative displacement occurs between the lower end of the diagonal member and the horizontal member via the beam in this area. This minute relative displacement is caused by play in the lead extrusion damper's mounting part, etc. The viscosity is rigidly attached between the lower end of the diagonal member and the horizontal member without being transmitted to the damper. viscous shear damper, and the viscous shear resistance of the viscous shear damper quickly Absorbed. When large vibrations are applied to a building due to an earthquake, etc., the lower ends of diagonal members may be damaged due to the large vibrations. A large relative displacement occurs between the horizontal member and the horizontal member. The large relative displacement is transferred to the lead extrusion damper as well as the viscous shear damper. The plastic flow resistance of lead in a lead extrusion damper and the viscosity of a viscous shear damper are Due to shear resistance, it is quickly absorbed.

[0006]

【Example】

An embodiment of the present invention will be described below with reference to the accompanying drawings. Figure 1 shows a front view of the vibration damping structure of a building in which the vibration damper according to the present invention is installed. vinegar. 1 is the beam corresponding to the ceiling, 3 is the horizontal material, 5 is the column material located at both ends of beam 1, Connecting members 7 are provided at the intersections of both pillar members 5 and 5, respectively. From each connecting member 7, diagonal members 9 hang diagonally symmetrically toward the center of the horizontal member 3. The lower ends of both diagonal members 9 are rigidly connected via a base frame 11. The base frame 11 is placed on a viscous shear damper 13 installed in the center of the horizontal member 3. , a lead extrusion damper 15 is arranged between the base frame 11 and each pillar material 5, respectively.

[0007] The viscous shear damper 13, as shown in FIG. A small gap is formed between the case 133 containing the sexual fluid 131 and the bottom surface of the case 133. In this way, a space is secured and a movement area is secured between the inner surface of the side wall of the case 133. and a resistance plate 135 disposed opposite to the bottom surface of the sea urchin case 133. The base frame 11 is rigidly attached to a support member 137 that supports the base frame 35.

[0008] The lead extrusion damper 15 uses the plastic flow resistance of lead as a damping force against vibration. It exhibits excellent vibration damping performance, especially against large vibrations. The lead extrusion damper 15 has a cylinder chamber 153 tightly filled with lead 151 and sealed. a cylinder member 155 having a A rod 157 is inserted into the cylinder chamber 153 so as to be relatively movable therein. A large diameter portion 159 is formed in the rod portion. In this example, the rod part has a large Although the resistance portion is configured by providing the diameter portion 159, the cylinder member 155 is A resistance portion may be formed that protrudes toward the inner diameter side. A flange 17 is provided at the end of the cylinder member 155 and the end of the rod 157, respectively. Each flange 17 has a bifurcated fitting 19 provided on the base frame 11 side and the pillar material 5 side. It is connected to the corresponding base frame 11 side and column material 5 side via pins 21.

[0009] Next, the operation of this embodiment will be explained. When minute vibrations act on a building due to wind, etc., the minute vibrations are caused by the beam 1 in the portion corresponding to the ceiling. and is transmitted to the pillar 5 via the diagonal member 9 connected to the intersection of the beam 1 and the pillar 5. and is transmitted to the base frame 11. By transmitting the vibration to the base frame 11, the base frame 11 and water A minute relative displacement occurs between the flat material 3 and the flat material 3. The minute relative displacement is caused by the flange 17 of the lead extrusion damper 15 and the mounting on the column 5 side. The lead extrusion is transmitted to the damper 15 due to play between the attachment 19 and the pin 21. and to the resistance plate 135 of the viscous shear damper 13 rigidly attached to the base frame 11. viscous resistance plate 135 and the bottom surface of the case 133. It is quickly absorbed by the viscous shear resistance of the viscous fluid 131.

0010 When large vibrations are applied to a building due to an earthquake, etc., the diagonal members 9 may be damaged due to the large vibrations. A large relative displacement occurs between the connected base frame 11 and the horizontal member 3. The large relative displacement is caused by the cylinder member 155 of the lead extrusion damper 15 and the rod. 157 and between the resistance plate 135 of the viscous shear damper 13 and the case 133. Lead plastic flow resistance plate and viscous resistance plate are reached and sealed in the cylinder chamber 153. Viscous shear of the viscous fluid 131 interposed in the minute gap between the bottom surface of the case 135 and the case 133 It is quickly absorbed by the resistance.

[0011] Therefore, in this embodiment, the lead extrusion damper 1 is used for large vibrations such as earthquakes. 5 and the viscous shear damper 13 are effectively exhibited, and the damping function of the viscous shear damper 13 is The vibration damping function of the viscous shear damper 13 is effectively exhibited against small vibrations.

0012

[Effect of the idea]

As is clear from the above explanation, according to the present invention, large vibrations such as those caused by earthquakes can be controlled. In addition to exhibiting excellent vibration performance, it also exhibits sufficient vibration damping performance against minute vibrations such as those caused by wind. A vibration damping structure for a building can be obtained.

[Brief explanation of drawings]

FIG. 1 is a front view of a part of a building in which a vibration damper is installed.

FIG. 2 is a cross-sectional front view of a viscous shear damper.

FIG. 3 is a cross-sectional front view of the lead extrusion damper.

[Explanation of symbols]

1 Beam in the area equivalent to the ceiling 3 Horizontal material 5 Pillar material 13 Viscous shear damper 15 Lead extrusion damper

Claims (1)

[Scope of utility model registration request] Claim 1: Two diagonal members that are hung diagonally from the intersection of two pillar members spaced apart from each other and a beam corresponding to the ceiling, and whose lower ends are connected on a horizontal member; It is characterized by comprising a lead extrusion damper disposed between the lower ends of the diagonal members and the two pillar members, and a viscous shear damper disposed between the lower ends of the two diagonal members and the horizontal member. Damping structure of buildings.