JPH07279386A - Vibration-proof structure for double floor - Google Patents

Abstract

PURPOSE:To absorb the vertical movement of an earthquake and prevent the overturn accident of an important apparatus by fitting a gelatinousl cushion material to the column base of a stanchion supporting a system floor. CONSTITUTION:A system floor is supported on a skeleton slab 1 via floor stanchions 2, and an important apparatus such as a computer is mounted on the floor. A base plate 8 fixed to the column base of the floor stanchion 2 is slidably inserted to dowel pins 7 planted on a base plate 6 fixed to the skeleton slab l via anchors 5, and a gelatinous cushion material 9 is inserted between both base plates 6, 8. The cushion material 9 is gelatinized with the polymer of a silicone compound, an elastic material 10 such as a coil spring or a plate spring is used as a core material, and it is molded with silicone into an integral shape. The elastic material 10 restrained by silicone mainly corresponds with the elastic restoring force to vertical compressive force, corresponds with the elasto-plasticity of silicone to horizontal force, and absorbs the vertical vibration and horizontal vibration of the floor to prepare for an earthquake.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-floor anti-vibration structure for protecting important equipment such as a computer mounted on a system floor from an earthquake and other vibrations.

[0002]

2. Description of the Related Art Conventionally, a vibration-proof floor has been provided in order to prevent important equipment such as a computer placed on the floor from vibration such as earthquake motion. A typical example of this anti-vibration floor is a base isolation floor.

[0003]

However, there are some earthquakes that vibrate up and down much like a direct earthquake, and the seismic isolated floor, which is effective only for horizontal motion, could not be dealt with. Therefore, an anti-vibration device effective for vertical movement, such as air rubber, can be considered, but it is expensive and not practical.

The present invention has been proposed in view of the above problems of the prior art. The purpose of the present invention is to effectively absorb vertical movements such as an earthquake and to prevent a fall accident of a computer or the like. The point is to provide a vibration isolation structure for the heavy floor.

[0005]

In order to achieve the above-mentioned object, a vibration isolation structure for a double floor according to the present invention is a double floor structure in which a system floor is supported on a skeleton floor slab via floor struts. In the floor, a gel cushion material is attached to the column bases of the floor pillars. According to a second aspect of the present invention, the gel cushion material is configured by incorporating an elastic core material into an elastoplastic body obtained by gelating a polymer of a silicon compound.

[0006]

The present invention, as described above, on the building floor slab,
The gel-like cushioning material, which has almost 100% elastic-plastic deformation capacity, is installed on the column base of the column that supports the system floor, and it absorbs vertical movements such as seismic motions, so that it can be placed on the system floor. Prevent accidents such as the fall of important devices such as computers.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. Reference numeral 1 is a skeleton floor slab on which a system floor 3 is supported via floor struts 2, and important equipment such as a computer 4 is mounted on the system floor 3. It has been placed. A base plate 8 fixed to the pillar base of the floor support 2 is slidably mounted on a base pin 6 fixed to the frame floor slab 1 via an anchor 5. It is loosely inserted, and a gel cushion material 9 is interposed between the base plates 6 and 8.

The gel cushion material 9 is a gel of a polymer of a silicon compound, and is used by molding it into a resinous material such as silicone or rubber. The gel cushion material 9 includes a coil spring,
The elastic material 10 such as a leaf spring is integrally molded with silicone using the elastic material 10 as a core material, and the elastic material 10 constrained by the silicone mainly responds to the compressive force of the upper and lower sides by the elastic restoring force, and responds to the horizontal force by the elastic-plasticity of the silicone. However, it absorbs vertical and horizontal vibrations of the floor and prepares for an earthquake.

The conventional rubber or lead seismic isolation device mainly acts on horizontal force and has no effect on vertical vibration. Since the illustrated embodiment is configured as described above, when the floor pillar 2 is vibrated up and down largely like a direct type during an earthquake,
Moves up and down with the base plate 8 and the slab 1 projecting from the body floor slab 1 as guides, and the gel cushion material 9 interposed between the base plates 6 and 8 causes an earthquake. The vertical movement is absorbed, and the computer 4 on the system floor 3 is prevented from falling.

Further, with respect to horizontal movement at the time of an earthquake, the dowel pin 7 prevents the floor from being largely displaced horizontally. By using a well-known seismic isolation floor device effective for horizontal vibration between the building floor slab 1 and the base plate 6, the vertical movement is caused by the gel cushion material 9
Then, the horizontal motion can be dealt with by the seismic isolation floor device.

[0011]

According to the double floor vibration damping structure of the present invention, since the gel cushion material is attached to the column base portion of the floor strut for supporting the system floor on the skeleton floor slab, the gel shape is the same. The cushioning material's large elasto-plastic deformation capacity effectively absorbs impact force, absorbs vertical movements during an earthquake, prevents important equipment such as computers on the system floor from falling over, and causes objects to collide. Even when it does, its deformability absorbs the impact force.

According to a second aspect of the present invention, the gel cushion material is constructed by incorporating an elastic core material in an elasto-plastic body made of a polymer of a silicon compound in a gel form, and the deformability thereof causes an impact at the time of an earthquake or the like. It is designed to effectively absorb force.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment of a double floor vibration-damping structure according to the present invention.

FIG. 2 is an enlarged view of a portion A of FIG.

[Explanation of symbols]

 1 Body floor slab 2 Floor support 3 System floor 4 Computer 5 Anchor 6 Base plate 7 Dowel pin 8 Base plate 9 Gel cushion material 10 Elastic material

Claims (2)

[Claims] 1. A double floor in which a system floor is supported on a skeleton floor slab via floor struts, wherein a gel cushion material is attached to a column base of the floor stanchion. Anti-vibration structure. 2. The vibration isolating structure for a double floor according to claim 1, wherein the gel cushion material is formed by incorporating an elastic core material into an elasto-plastic body made of a gel of a silicon compound polymer.