JPH10227150A - Vibration-controlled building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure a damping effect and reduce an installation space for a damping device by arranging an opening in a continuous layered earthquake-resisting wall and arranging a damper between angular braces and both ends of the braces. SOLUTION: An opening is arranged in the first floor section that becomes the leg section of a continuous layered earthquake-registing wall 2, a stress transmission member 4 of a column is embedded and fixed, and a pole 7 is fixed between the center of the transmission member 4 and the opening by a pin support 6. And then, upper shearing stress transmission members 8, 8 are fixed to both sides of the transmission member 4, and lower shearing stress transmission members 9, 9 are fixed to the lower side of the opening. In such case, shearing force applied to the earthquake- proof wall 2 is transmitted with angular braces 10 formed by providing the upper and lower shearing stress transmission members 8, 9 in a connected state and supports in a rotatable manner. In addition, a damper 12 is obtained by connecting transmission members 8, 9 by a damper. Moment applied to the earthquake-registing 2 concentrates on the opening and rotation is absorbed and damped by the damper and thereby reduces an installation space for the damper 12 and improves the freedom of design.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a damping building,
In particular, the present invention relates to a vibration-damping building that achieves a high vibration-damping effect, requires less installation space for a vibration-damping device, and has less design restrictions.

[0002]

2. Description of the Related Art As one means for improving earthquake resistance, there is a vibration damping structure. Various proposals have been made for a vibration damping structure, for example, a structure in which a steel damper is incorporated in a stud or a brace, and a structure in which a viscous damper is incorporated in a wall or a mounting portion thereof.

As a vibration damping construction method using an earthquake-resistant wall, as disclosed in Japanese Patent Application Laid-Open No. 8-333917, a top garter is attached to the top of a core constituted by the earthquake-resistant wall and an outer frame or a pillar of the outer wall. Is stretched from the core side, and the top garter and the column of the outer peripheral frame or the outer peripheral wall are joined via a vibration damping device.

[0004]

In the conventional vibration damping method,
It is difficult to obtain a large damping force because the damping device is installed on the top of the earthquake-resistant wall, and the top garter is required at the top of the core, so the degree of freedom of design is low, and more space for installing the damping device is required. There were problems such as doing.

[0005]

A vibration-damping building according to the present invention is a vibration-damping building in which an opening is provided in a part of a multi-story earthquake-resistant wall and a vibration-damping device is provided in the opening. The device is provided at a central portion of the opening, and a supporting column having an upper portion or a lower portion connected to the opening by a pin support, and a supporting column provided in the opening surface along with the supporting column, and a vertex thereof is formed at the supporting column. A brace that is fixed to the opening so as to coincide with the pin bearing of the above, and both ends of the brace are fixed to the opposing portion of the opening, and a damper is provided between both ends of the brace and the opposing portion of the opening. It is.

As a result, the moment applied to the earthquake-resistant wall concentrates on the opening, and a high damping effect can be obtained by the damper installed here, and the installation space of the damping device is small.
The design has a high degree of freedom, and the vertical force acting on the earthquake-resistant wall is supported by the supporting columns, and the shearing force acting on the earthquake-resistant wall is transmitted by a chevron brace, and the damper absorbs the rotation of the multi-story earthquake-resistant wall. Is easy.

[0007] The angle brace of the vibration-damping building of the present invention is:
Since the two support columns are provided, there is no twist or the like in the vibration suppression device, and the installation space for the vibration suppression device is small. Further, since the vibration damping device of the vibration damping building of the present invention is provided on the leg of the multi-story shear wall where the largest stress is concentrated, a high vibration damping effect can be obtained.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a vibration damping device according to an embodiment of the present invention, and FIGS. 2 and 3 are elevation views thereof. FIG.
FIG. 4 is a plan view of the damping building according to the embodiment of the present invention, and FIG.
FIG. 5 is a plan view of a damping building, and FIGS. 5 and 6 are elevation views of another damping device according to the embodiment of the present invention.

As shown in FIGS. 1, 2 and 3, an opening 3 is provided in a first floor portion which is a leg of a multi-story shear wall 2 of a vibration damping building 1. On the upper side of the opening 3, a stress transmission member 4 made of H-shaped steel is embedded and fixed via a stud 5. Between the center of the stress transmitting member 4 and the lower side of the opening 3,
A supporting column 7 formed by combining a pair of C-shaped steels having pin bearings 6 is fixed, and transmits a vertical axial force applied to the multi-story shear wall 2 and rotatably supports it.

Upper shear stress transmitting members 8 and 8 made of H-shaped steel are fixed to both sides of the stress transmitting member 4, and a lower portion made of a pair of H-shaped steel is also provided on the lower side of the opening 3 in opposition to the upper shear stress transmitting members 8 and 8. The shear stress transmitting members 9, 9 are fixed, and the central portion of the upper shear stress transmitting member 8 and both ends of the lower stress transmitting member 9 are connected to each other with H-shaped steel to form a chevron brace 10. The mountain brace 10 transmits the shearing force applied to the multi-story shear wall 2 and rotatably supports it.

Further, both ends of the upper shear stress transmitting member 8 and the lower stress transmitting member 9 are connected by a damper 11,
A vibration damping device 12 is formed. As the damper 11, an oil damper, a viscoelastic damper, a viscous damper, a steel damper, or the like is appropriately used.

The moment applied to the multi-story shear wall 2 concentrates on the opening, and the multi-story shear wall 2 rotates because the pin 7 and the top of the mountain-shaped brace 10 are aligned with the pin support. The damper 11 absorbs the vibration and raises the rotation, so that a high damping effect can be obtained, the installation space of the damping device can be reduced, and the degree of freedom in design can be improved. Further, the vertical force applied to the multi-story shear wall 2 is transmitted by the support columns 7, and the shearing force is transmitted by the mountain brace 10, and the rotation of the multi-story shear wall 2 is absorbed by the damper 11. .

As shown in FIG. 4, it is desirable that the vibration damping devices 12 are arranged in a balanced manner in the X and Y directions.

As another embodiment of the vibration damping device, as shown in FIG. 5, one end of a damper 11 is fixed to an end of a chevron brace 10, and the other end is fixed with a large gap from the chevron brace 10. As shown in FIG. 6, there is a vibration damping device 12 in which a damper 11 is connected and fixed to the upper and lower sides of the opening 3 at a distance from the mountain brace 10, and in each case, the amount of deformation of the damper To increase the damping effect.

The members constituting the stress transmitting member 4, the supporting column 7, the upper and lower shearing force transmitting members 8, 9 and the mountain brace 10 are not limited to the present embodiment, but may be selected from commonly used members. 4. The upper and lower shear stress transmitting members 8 and 9 may be eliminated, and the support column 7, the chevron brace 10 and the damper 11 may be directly fixed to the opening 3. In addition, support pillar 7
And the mountain-shaped brace 10 may be replaced with each other, and the support column 7 may be arranged in a pair with the mountain-shaped brace 10 interposed therebetween.
One each may be used.

[0016]

The vibration-damping building of the present invention is a vibration-damping building in which an opening is provided in a part of a multi-story earthquake-resistant wall and a vibration-damping device is provided in the opening. A support column, which is provided at the center of the opening and whose upper or lower portion is connected to the opening with a pin support, is provided along with the support column in the opening surface,
A chevron brace whose top is aligned with the pin bearing of the support column and is fixed to the opening, and both ends of which are fixed to the opposing portion of the opening, between the two ends of the chevron brace and the opposing portion of the opening. Since the damper is equipped with a damper, the moment acting on the earthquake-resistant wall concentrates on the opening, so that a high damping effect can be obtained. In addition, the vertical force applied to the earthquake-resistant wall is transmitted by a support column, and the shear force applied to the earthquake-resistant wall is transmitted by a chevron brace, and the damper absorbs the rotation of the multi-story earthquake-resistant wall.

Further, the angle brace of the damping building of the present invention is
Since the two support columns are provided, there is no twist or the like in the vibration suppression device, and the installation space is small. Furthermore, since the vibration damping device of the vibration damping building of the present invention is provided on the leg of the multi-story shear wall where the largest stress is concentrated, a high vibration damping effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a side view of a vibration damping device.

FIG. 2 is an elevation view of the vibration damping device as viewed in the direction of arrow A in FIG. 1;

FIG. 3 is an elevation view of the vibration damping device as viewed in the direction of arrow B in FIG. 1;

FIG. 4 Floor plan of the damping building

FIG. 5 is an elevation view of another embodiment of the vibration damping device.

FIG. 6 is an elevation view of another embodiment of the vibration damping device.

[Explanation of symbols]

1: Damping building 2: Multi-story shear wall 3: Opening 6: Pin bearing 7: Support column 10: Mountain brace 11: Damper 12: Damping device

Claims (3)

[Claims] 1. A damping building in which an opening is provided in a part of a multi-story earthquake-resistant wall, and a vibration damping device is provided in the opening, wherein the vibration damping device is provided in a central portion of the opening. A support pillar whose upper or lower part is connected to the opening by a pin bearing, and which is provided alongside the support pillar in the opening surface, and whose apex is fixed to the opening by matching the pin bearing of the support pillar. A vibration-damping building, comprising: a chevron brace for fixing both ends thereof to the opposing portion of the opening; and a damper between both ends of the chevron brace and the opposing portion of the opening. 2. The vibration-damping building according to claim 1, wherein two chevron braces are provided with support columns interposed therebetween. 3. The vibration damping building according to claim 1, wherein the vibration damping device is provided on a leg of the multistory shear wall.