JPH1054158A - Base isolation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide stable damping performance and base isolation performance regardless of the atmospheric temperatures of the positions where laminated rubber supports are arranged. SOLUTION: This base isolation device is provided with multiple laminated rubber supports 12 arranged at multiple positions between a building 11 and the ground 10 supporting the building 11, and a structure is base isolation- supported by the laminated rubber supports 12. The atmospheric temperatures around the laminated rubber supports 12 are detected by temperature detecting means 13. When the detected temperatures are judged to be outside the set range by a control means 15, a cooling/heating means 14 is driven by the control means 15 to keep the atmospheric temperatures of the laminated rubber supports 12 within the set temperature range, and the laminated rubber supports 12 are kept at the state to effectively exert their base isolation performance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a seismic isolation device having a laminated rubber bearing.

[0002]

2. Description of the Related Art A seismic isolation device is provided between a structure such as a building and a support such as a ground or a floor for supporting the structure.
The structure is supported on a support by seismic isolation. In a laminated rubber bearing type seismic isolation device, a laminated rubber bearing is provided at a plurality of locations between the support and the structure. This type of laminated rubber bearing is configured by laminating a plurality of reinforcing plates and rubber plates, or by vertically arranging lead plugs inside thereof, or by using high damping rubber as the rubber plate. Various types of laminated rubber bearings are provided.

[0003]

By the way, in the seismic isolation device having such a laminated rubber bearing, the rigidity and the temperature dependency of the damping are different depending on the kind of the rubber constituting the laminated rubber bearing. Temperature range (for example, 0 ° C to 30 ° C)
It is designed so that the optimal seismic isolation performance can be obtained within (degree). Therefore, for example, when the ambient temperature of the place where the seismic isolation device is arranged becomes lower than the lower limit temperature (for example, 0 ° C.) of the range in which the seismic isolation performance of the laminated rubber bearing can be effectively exhibited, the rubber becomes hard. The rigidity of the rubber increases, and the damping performance increases. Also, when the ambient temperature of the place where the seismic isolation device is arranged becomes higher than the upper limit temperature (for example, 30 ° C.) of the range in which the seismic isolation performance of the laminated rubber bearing can be effectively exhibited,
Although the rigidity of rubber does not change, the damping effect decreases and the seismic isolation performance also decreases. The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a stable damping performance and seismic isolation performance that are not affected by the ambient temperature of the place where the laminated rubber bearing is disposed. To provide a vibration device.

[0004]

In order to achieve the above object, the present invention comprises a plurality of laminated rubber bearings arranged at a plurality of positions between a structure and a support for supporting the structure.
A seismic isolation device for seismically isolating and supporting a structure by each of the laminated rubber bearings, wherein a temperature detecting means for detecting a temperature of a space in which the laminated rubber bearing is disposed or a temperature of the laminated rubber bearing; a heating means; When the temperature detected by the detecting means is lower than a preset set temperature, the heating means is controlled to start to maintain the temperature of the space in a preset set temperature range.

The present invention comprises a plurality of laminated rubber bearings disposed at a plurality of positions between a structure and a support for supporting the structure, and the structure is seismically isolated and supported by each of the laminated rubber bearings. A seismic isolation device, wherein a temperature detecting means for detecting a temperature of a space or a laminated rubber bearing in which the laminated rubber bearing is disposed, a cooling means, and a temperature detected by the temperature detecting means, wherein the temperature detected by the temperature detecting means is higher than a preset temperature. When the temperature is high, control means is provided for controlling the activation of the cooling means to maintain the temperature of the space in a preset temperature range.

According to the present invention, a plurality of laminated rubber bearings are provided at a plurality of positions between a structure and a support for supporting the structure, and the structure is seismically isolated and supported by each of the laminated rubber bearings. A seismic isolation device, wherein a temperature detecting unit for detecting a temperature of a space in which the laminated rubber bearing is disposed or a laminated rubber bearing, a cooling / heating unit, and a temperature detected by the temperature detecting unit is out of a preset temperature range. And control means for controlling the activation of the cooling and heating means to maintain the temperature of the space within a preset temperature range.

Further, according to the present invention, an annular space is formed by a flexible partition provided over the entire outer periphery of each of the laminated rubber bearings and over the lower surface of the structure and the upper surface of the support. The heating means, the cooling means, or the cooling / heating means are provided in correspondence with the above.

The present invention comprises a plurality of laminated rubber bearings disposed at a plurality of positions between a structure and a support for supporting the structure, and the structure is seismically isolated and supported by each of the laminated rubber bearings. A seismic isolation device, comprising: a heating element wound around the outer periphery of the laminated rubber bearing; a heat insulating material covering the outer periphery and the heating element of the laminated rubber bearing; and temperature detecting means for detecting a temperature of the laminated rubber bearing. Control means for controlling the driving of the heating element to maintain the temperature of the laminated rubber bearing in a preset temperature range when the temperature detected by the temperature detection means is lower than a preset set temperature. Features.

In the present invention, the temperature of the laminated rubber bearing or the ambient temperature thereof is detected by the temperature detecting means, and the control means determines that the detected temperature is below the set temperature, above the set temperature, or outside the set temperature range. When it is determined, the control means drives the heating element, the heating means, the cooling means, or the cooling / heating means to maintain the temperature of the laminated rubber bearing or the ambient temperature thereof within the set temperature range. Therefore, the seismic isolation performance of the laminated rubber bearing can be stably maintained and effectively exerted without being affected by the ambient temperature of the seismic isolation device.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a seismic isolation device according to the present invention. The seismic isolation device supports a building (corresponding to a structure) 11 built on a ground (corresponding to a support) 10. The seismic isolation device includes a plurality of laminated rubber bearings 12, a temperature detecting unit 13, a cooling / heating unit 14, and a control unit 15 for the cooling / heating unit 14.

The laminated rubber bearing 12 is formed by laminating a plurality of reinforcing plates and rubber plates, or by vertically arranging lead plugs inside thereof, or by using high damping rubber as the rubber plate. It consists of well-known things. The laminated rubber bearings 12 are disposed at a plurality of locations in the seismic isolation recess 101 constructed on the ground 10 between the upper surface of the recess 101 and the lower surface of the building 11. The temperature detecting means 13 detects an atmospheric temperature in a space 16 defined by the concave portion 101 and the lower surface of the building 11, specifically, an atmosphere temperature in the space 16 formed substantially in a state of being isolated from the atmosphere. It is installed in a plurality of predetermined places inside. The cooling / heating unit 14 heats or cools the space 16 so that the ambient temperature in the space 16 is maintained in a preset temperature range (for example, in a range of 0 ° C. to 30 ° C.). Air supply duct 1 between means 14 and space 16
41 and an intake duct 142. The location of the cooling / heating unit 14 may be outside the space 16 or outside or inside the building 11 or inside the space 16 and is arbitrary.

The control means 15 includes a temperature setting means 17 for setting a temperature range in which the seismic isolation performance of the laminated rubber bearing 12 can be exhibited effectively. The temperature detected by the temperature detection means 13 is set by the temperature setting means 17. Temperature range (for example,
0 ° C. to 30 ° C.), and when the temperature is out of the set temperature range, the cooling / heating means 14 is controlled to be activated. The ambient temperature of No. 16 is maintained in a preset temperature range.

In the seismic isolation device configured as described above, the seismic isolation device is used in a high-temperature atmosphere such as in summer (for example, 3
0 ° C. or higher), the control unit 15 determines that the temperature detected by the one or more temperature detecting units 13 has risen to an upper limit temperature, for example, 30 ° C. or higher. The means 15 operates the cooling and heating means 14 in a cooling operation, and cools the inside of the space 16 so that the space 16 is cooled.
The ambient temperature within 30 ° C. When the temperature of the atmosphere in the space 16 drops by several degrees from, for example, 30 ° C., the cooling operation of the cooling / heating unit 14 automatically stops. Hereinafter, by performing the same operation, the ambient temperature of the laminated rubber bearing 12 is maintained at a temperature not exceeding 30 ° C. Thereby, space 1
Since the ambient temperature of the laminated rubber bearing 12 in the inside 6 can be maintained in a temperature range where the damping effect and the seismic isolation effect are not reduced, the reduction of the damping effect of the laminated rubber bearing 12 can be prevented, and the laminated rubber bearing 12 The seismic isolation performance can be maintained effectively.

Further, when the seismic isolation device is placed in a low-temperature atmosphere (eg, 0 ° C. or lower) such as in winter, the temperature detected by one or more temperature detecting means 13 is the lower limit temperature, for example. Control means 1 is that the temperature has dropped below 0 ° C.
If the determination is made in step 5, the control means 15 controls the cooling and heating means 14
Is heated and the inside of the space 16 is heated to raise the ambient temperature in the space 16 to 0 ° C. or more. When the ambient temperature in the space 16 rises several degrees from 0 ° C., for example, the heating operation of the cooling / heating means 14 automatically stops. Hereinafter, by performing the same operation, the ambient temperature of the laminated rubber bearing 12 is maintained at a temperature that does not become 0 ° C. or less. Thereby, the ambient temperature of the laminated rubber bearing 12 in the space 16 can be maintained in a temperature range where the damping effect and the seismic isolation effect are not reduced, thereby preventing the rubber from becoming hard and the rigidity of the rubber from being increased. Thus, the laminated rubber bearing 12 can be maintained in a state where its seismic isolation performance can be effectively exhibited.

In the above embodiment, the case where the cooling / heating means 14 is used so that the ambient temperature of the laminated rubber bearing 12 can be controlled according to the four seasons has been described. However, the present invention is not limited to this. For example, the means for controlling the ambient temperature of the laminated rubber bearing 12 in a cold region where the temperature does not exceed 30 ° C. may be a means having only a heating function. For controlling the ambient temperature of the laminated rubber bearing 12 in the area, means having only a cooling function may be used. In the above embodiment, the case where the temperature detecting means 13 detects the atmospheric temperature in the space 16 has been described.
The cooling / heating means 14 may be controlled by detecting its own temperature.

Next, another embodiment of the present invention will be described with reference to FIG. FIG. 2 shows a configuration diagram of a seismic isolation device in which each laminated rubber bearing is controlled to a predetermined temperature range by a cooling / heating device for each laminated rubber bearing. The seismic isolation device in FIG. 2 includes an annular space 22 formed by a flexible partition wall 21 provided over the entire outer periphery of the laminated rubber bearing 12 and over the lower surface of the structure and the upper surface of the support,
A temperature detecting unit 23, a cooling / heating unit 24, and a control unit 25 for the cooling / heating unit 24 are provided.

The temperature detecting means 23 detects the ambient temperature in the space 22 and is installed at a plurality of predetermined locations in the space 22. The cooling / heating unit 24 controls the ambient temperature in the space 22 to a predetermined temperature range (for example, 0 ° C. to 30 ° C.).
The heating and cooling of the space 22 is performed so as to maintain the temperature in the range of (° C.), and the cooling / heating means 24 and the space 22 are connected by an air supply duct 241 and an intake duct 242. The location of the cooling and heating means 24 may be outside or inside the building 11 outside the space 22 or in the space 2.
It may be within 2.

The control means 25 includes a temperature setting means 26 for setting a temperature range in which the seismic isolation performance of the laminated rubber bearing 12 can be effectively exhibited. The temperature detected by the temperature detecting means 23 is set by the temperature setting means 26. Temperature range (for example,
0 ° C. to 30 ° C.), and when the temperature is outside the set temperature range, the cooling / heating means 24 is controlled to be activated. The atmosphere temperature of No. 22 is maintained in a preset temperature range.

In the seismic isolation device configured as described above, the seismic isolation device is used in a high-temperature atmosphere such as in summer (for example, 3
0 ° C. or higher), the control unit 25 determines that the temperature detected by the one or more temperature detecting units 23 has reached the upper limit temperature, for example, 30 ° C. or higher. The means 25 lowers the ambient temperature in the space 16 to 30 ° C. or lower by operating the cooling / heating means 24 in a cooling operation and cooling the inside of the space 22. When the temperature of the atmosphere in the space 16 drops by several degrees from, for example, 30 ° C., the cooling operation of the cooling / heating unit 14 automatically stops. Hereinafter, by performing the same operation, the ambient temperature of the laminated rubber bearing 12 becomes 3
Maintain at a temperature not exceeding 0 ° C. Thereby, the space 22
Since the ambient temperature of the laminated rubber bearing 12 can be maintained in a temperature range where the damping effect and seismic isolation effect are not reduced, the reduction of the damping effect of the laminated rubber bearing 12 can be prevented, and the laminated rubber bearing 12 can The seismic isolation performance can be maintained effectively.

When the seismic isolation device is placed in a low-temperature atmosphere (eg, 0 ° C. or lower) such as in winter, the temperature detected by one or more temperature detecting means 23 is the lower limit temperature, for example. The control means 25 indicates that the temperature has become 0 ° C. or less.
When the determination is made in the step 2, the control means 25 controls the heating / cooling means 24 to perform the heating operation, and heats the inside of the space 22 so that the space 2
Raise the ambient temperature in 2 above 0 ° C. When the ambient temperature in the space 16 rises several degrees from 0 ° C., for example, the heating operation of the cooling / heating means 14 automatically stops. Hereinafter, by performing the same operation, the ambient temperature of the laminated rubber bearing 12 is reduced to 0.
Maintain a temperature that does not fall below ℃. Thereby, the space 2
2 can maintain the ambient temperature of the laminated rubber bearing 12 in a temperature range that does not decrease the damping effect and seismic isolation effect, so that the rubber is prevented from becoming hard and the rigidity of the rubber is increased, and the laminated rubber is prevented. The bearing 12 can be maintained in a state where its seismic isolation performance can be effectively exhibited.

In the other embodiment, the case where the cooling / heating means 24 is used so that the ambient temperature of the laminated rubber bearing 12 can be controlled according to the four seasons has been described. However, the present invention is not limited to this. For example, the means for controlling the ambient temperature of the laminated rubber bearing 12 in a cold region where the temperature does not exceed 30 ° C. may be a means having only a heating function. For example, for controlling the ambient temperature of the laminated rubber bearing 12 in a warm region, means having only a cooling function may be used. Further, in the other embodiment described above, the case where the temperature detecting means 13 detects the ambient temperature in the space 22 has been described.
The temperature of the laminated rubber bearing 12 itself is detected and the cooling and heating means 24 is detected.
May be controlled.

Next, still another embodiment of the present invention will be described with reference to FIG. FIG. 3 shows a configuration diagram of a seismic isolation device in which each laminated rubber bearing is controlled to a predetermined temperature range by a heating element. In FIG. 3, a heating element 31 formed into a sheet shape by burying an electric heater wire or the like in an insulator is wound around the outer periphery of the laminated rubber bearing 12 constituting the seismic isolation device. Heat insulation material 3
2 coated. The laminated rubber bearing 12
Is provided with a temperature detecting means 33 for detecting the temperature. The control means 34 controls the driving of the heating element 31. The control means 34 has a temperature setting for setting a temperature (for example, a temperature of 0 ° C. or more) at which the seismic isolation performance of the laminated rubber bearing 12 can be exhibited effectively. The means 35 and the temperature detecting means 33 are connected. Therefore, when the temperature of the laminated rubber bearing 12 detected by the temperature detecting means 33 becomes lower than the set temperature set by the temperature setting means 35, the control means 34 supplies power to the heating element 31 from a power supply device (not shown). Thus, the temperature of the laminated rubber bearing 12 is maintained at or above a preset temperature.

In the seismic isolation device configured as described above, the seismic isolation device is used in a low-temperature atmosphere (eg, 0
When the control unit 34 determines that the temperature detected by the temperature detection unit 33 has become, for example, 0 ° C. or less, the control unit 34 supplies electricity to the heating element 31 and Warming the rubber bearing 12 raises the temperature of the laminated rubber bearing 12 to 0 ° C. or higher. Laminated rubber bearing 1
The temperature of the heating element 3 rises several degrees from 0 ° C., for example.
1 is automatically stopped. Hereinafter, by performing the same operation, the temperature of the laminated rubber bearing 12 is maintained at a temperature that does not become 0 ° C. or less. Thereby, since the temperature of the laminated rubber bearing 12 can be maintained in a temperature range where the seismic isolation effect is not reduced, the rigidity of the rubber and the rigidity of the rubber are prevented from being increased, and the laminated rubber bearing 12 is prevented from being damaged. The seismic isolation performance can be maintained effectively.

[0024]

As described above, according to the present invention, the temperature of the laminated rubber bearing or the ambient temperature around it is detected by the temperature detecting means, and the detected temperature is equal to or lower than the set temperature, equal to or higher than the set temperature, or set temperature range When it is determined by the control means that it is outside, a heating element, a heating means,
Since the cooling means or the air-conditioning means is driven to maintain the temperature of the laminated rubber bearing or the surrounding ambient temperature within the set temperature range, the laminated rubber bearing is not affected by the ambient temperature of the seismic isolation device. The seismic isolation performance of can be maintained stably, and it can be exhibited effectively.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a seismic isolation device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a seismic isolation device according to another embodiment of the present invention.

FIG. 3 is a configuration diagram of a seismic isolation device according to still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Ground (support) 101 Seismic isolation recess 11 Building (structure) 12 Laminated rubber bearing 13,23,33 Temperature detecting means 17,26,35 Temperature setting means 14,24 Cooling / heating means 15,25,34 Control means 16 22 space 21 partition wall 31 heating element 32 heat insulating material

Claims (5)

[Claims] 1. A seismic isolation device comprising a plurality of laminated rubber bearings disposed at a plurality of positions between a structure and a support for supporting the structure, and the structure is seismically isolated and supported by each of the laminated rubber bearings. An apparatus, comprising: a temperature detecting unit for detecting a temperature of a space in which the laminated rubber bearing is disposed or a temperature of the laminated rubber bearing; a heating unit; and a case in which a temperature detected by the temperature detecting unit is lower than a preset temperature. And control means for controlling the activation of the heating means to maintain the temperature of the space in a preset temperature range. 2. A seismic isolation device comprising a plurality of laminated rubber bearings disposed at a plurality of locations between a structure and a support for supporting the structure, and the structure is seismically isolated and supported by each of the laminated rubber bearings. A temperature detecting means for detecting a temperature of a space in which the laminated rubber bearing is provided or a temperature of the laminated rubber bearing; a cooling means; and a temperature detected by the temperature detecting means being higher than a preset temperature. And control means for controlling the activation of the cooling means to maintain the temperature of the space in a preset temperature range. 3. A seismic isolation device comprising a plurality of laminated rubber bearings disposed at a plurality of locations between a structure and a support for supporting the structure, and the structure is seismically isolated and supported by each of the laminated rubber bearings. An apparatus for detecting the temperature of a space in which the laminated rubber bearing is provided or a temperature of the laminated rubber bearing; a cooling / heating unit; and a temperature detected by the temperature detecting unit is outside a preset temperature range. And control means for controlling the activation of the cooling and heating means to maintain the temperature of the space within a preset temperature range at a time. 4. An annular space is formed by flexible partitions provided over the outer periphery of each of the laminated rubber bearings and over the lower surface of the structure and the upper surface of the support. 1, wherein the heating means, the cooling means, or the cooling / heating means are respectively provided.
The seismic isolation device according to 2 or 3. 5. A seismic isolation device comprising a plurality of laminated rubber bearings disposed at a plurality of locations between a structure and a support for supporting the structure, and the structure is seismically isolated and supported by each of the laminated rubber bearings. An apparatus, comprising: a heating element wound around the outer periphery of the laminated rubber bearing; a heat insulating material covering the outer periphery of the laminated rubber bearing and a heating element; and a temperature detecting means for detecting a temperature of the laminated rubber bearing; When the temperature detected by the temperature detecting means is lower than a preset set temperature, control means for controlling the driving of the heating element to maintain the temperature of the laminated rubber bearing in a preset temperature range. And seismic isolation device.