JPH02248548A - Device for exempting building from vibration - Google Patents

Abstract

PURPOSE:To facilitate the execution of work and enable a device to be compacted in the state of low bulk by providing the center of a vibration- exempting member, with a damper consisting of a rod body and a high-viscous body, and by setting a vessel body for containing the high-viscous body, between the vibration-exempting member and the high-viscous body. CONSTITUTION:The central section of a vibration-exempting member 1 is provided with a vessel body 6 in the shape of a box or a bag consisting of a rubber bag containing the stiffener of sailing cloth, a breaker, or the like if required, having an upper opening section. After that, a damper 4 with a rod body 2 fixed on a sole plate 5, formed with the hard large rod-shaped substance of a steel rod, plastics rod, or the like, and inserted into the high-viscous body 3 of silicon oil or the like is contained in the vessel body 6, and a vibration- exempting device is composed. Besides, the rod body 2 may be composed to be inserted through both the sides of an upper side and a lower side. Then, the vibration-exempting member 1 and the damper 4 are put together, and a set area is reduced, and even if the vessel body 6 is deformed, the high-viscous body 3 is contrived not to be leaked out.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is a device that can be installed at the bottom of various buildings to reduce the shaking of the building or quickly stop the shaking during an earthquake. This relates to seismic isolation devices for buildings used in

[Conventional technology]

Conventional seismic isolation devices for buildings use seismic isolation materials (
It was common practice to construct an isolator) and a damper, which quickly dampens vibrations, as separate bodies, and to install both separately.

In the case of this conventional example, the work process of separately installing the seismic isolation material and the damper was complicated, the workability was poor, and the structure could not be installed at a low volume.

[Problem to be solved by the invention]

Therefore, in this invention, by installing a seismic isolation device that incorporates a seismic isolation material and a damper together, the installation work is easy, the installation can be done with low bulk, and the highly viscous material contained in the seismic isolation material can leak out The present invention aims to provide a highly durable seismic isolation device for buildings that is free from the risk of damage.

[Means to solve the problem]

To this end, the present invention provides a seismic isolation device for buildings, in which a damper made of a rod and a high-viscosity material is provided in the center of a seismic-isolating material, and a container is used to house the highly-viscous material between the seismic-isolating material and the high-viscosity material. It has a structure with

Further, the container may have a space above it to accommodate a highly viscous material, or the container may be made of a rubber bag containing a reinforcing material.

Furthermore, the lower part of the container can be made into a bag with a bottom, and the rod can be inserted only from above, or the rod can be inserted into the container from both above and below. [Function] The above configuration The seismic isolation device for buildings incorporates the seismic isolation material and the damper together, so there is no need to install the seismic isolation material and damper separately during construction, making it easy to install. In addition, it requires less installation space and can be installed compactly.

Furthermore, since the highly viscous material is housed in the container body, the highly viscous material does not leak out and can be used with great durability.

[Example] The structure of the present invention will be described below with reference to the drawings shown as an example.

This seismic isolation device consists of a seismic isolation material (1) that transmits vibrations caused by earthquakes etc. to the building in a relaxed manner, and a rod (2).
) and a damper (4) made of a highly viscous material (3) to quickly stop the shaking of the building.

The seismic isolation material (1) has a structure in which steel plates (1a) and rubber (1b) are laminated in many layers.

A rod (2) and a highly viscous body (3) are placed in the center of the seismic isolation material (1).
A damper (4) consisting of a rod body (2) fixed to a soul plate (5) is inserted into a high viscosity body (3).

The rod body (2) is made of a hard rod-shaped object such as a net rod or a plastic type rod, and the highly viscous body (3) is made of a highly viscous substance such as silicone oil.

A container body (6) containing the high viscosity body (3) is provided between the seismic isolation material (1) and the high viscosity body (3).

The highly viscous body (3) is housed in the container body (6) with a space above the container body (6), so that even if the seismic isolation device is deformed, it can absorb volume fluctuations. There is.

The container body (6) can be in various shapes such as a box shape or a bag shape, but in order to maintain high strength, it should be made of canvas or a rubber bag containing reinforcing material such as a breaker. As shown in Fig. 1, the container body (6) preferably has a shape with the upper part open and the upper part covered with seismic isolation material (1).
) and the soul plate (5), and seismic isolation material (1
), the lower part has a bag-like bottom, the highly viscous material (3) is housed inside, and the rod (2) is inserted only from above.

In addition, this seismic isolation device has a rod (2) as shown in Figure 2.
This can be carried out by inserting the material into the high viscosity material (3) housed in the container body (6) from both above and below. In this case, the lower rod (2) is fixed to the lower soul plate (7) with a screw (8), protrudes upward, penetrates the bottom of the container body (6), and is attached to the high viscosity body (3). inserted inside. A flange (9) is formed on this lower rod (2), and the flange (9) closes the bottom penetrating portion of the container body (6).

The seismic isolation material (1) generally has a substantially cylindrical shape, and the container body (6) may have a circular or other appropriate shape.

The seismic isolation device with the above structure is installed between the base (10) and the floor beam (11) at the bottom of the building, and the seismic isolation material ( 1), and the shaking of the building can be quickly stopped (vibration damping effect) by the action of the rod (2) inserted into the high-viscosity body (3).

The illustrated reference numeral (12) is a rubber gasket provided on the outer surface of the seismic isolation material (1).

[Effects of the Invention] This invention has the above-mentioned configuration, and since the seismic isolation material (1) and the damper (4) are incorporated together, construction is easy and compact. It can be installed with low bulk. In addition, since the highly viscous material (3) is housed inside the container body (6), the highly viscous material (3) can be used with high durability without leaking out. Since the space contains the high viscosity material (3), even if the volume of the container body (6) decreases due to deformation of the seismic isolation material (1), the space absorbs the deformation and the high viscosity material (3) does not leak out.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a seismic isolation device according to the present invention. FIG. 2 is a longitudinal sectional view showing an embodiment in which rods are provided on both the upper and lower sides.

Claims (1)

[Claims] 1. A damper made of a rod and a highly viscous material is provided in the center of the seismic isolation material, and a container body for accommodating the highly viscous material is provided between the seismic isolation material and the high viscosity material. Seismic isolation device for buildings. 2. The seismic isolation device for a building according to claim 1, wherein the container body has a space in the upper part to accommodate a highly viscous material. 3. The seismic isolation device for a building according to claim 1 or 2, wherein the container body is made of a rubber bag containing a reinforcing material. 4. A seismic isolation device for a building according to any one of claims 1 to 3, wherein the lower part of the container body has a bag-like bottom and the rod body is inserted only from above. 5. The seismic isolation material for buildings according to claims 1 to 3, wherein the rod is inserted into the container body from both above and below.