JP2008259354A - Building - Google Patents

Abstract

An object of the present invention is to provide a building capable of converting vibration energy such as earthquake and wind received by the building into electric energy using a simple facility.
A building according to the present invention includes a seismic isolation device and / or a vibration control device and a power generation device mounted on the seismic isolation device and / or the vibration control device. . The power generation device 10 includes a plurality of piezoelectric elements 11 and a suspension part 12 that suspends each piezoelectric element 11, and the suspension part 12 is attached to the suspension part 12 as the seismic isolation device 20 and / or the vibration control device 30 is deformed. A plurality of suspended piezoelectric elements 11 collide with each other to generate power.
[Selection] Figure 1

Description

  The present invention relates to a building including a seismic isolation device and / or a vibration control device.

  Conventionally, in a building with seismic isolation and control functions, a device that converts vibration energy such as earthquake and wind received by the building into electrical energy can be installed in the seismic isolation device or seismic control device to generate electricity. (For example, refer to Patent Document 1).

  The energy conversion / supply system of Patent Document 1 includes a hydraulic cylinder, an accumulator, and a hydraulic actuator. The hydraulic cylinder is installed in the seismic isolation layer, and the fluid in the hydraulic cylinder is generated by the vibration of the seismic isolation layer generated during an earthquake. Is pressurized and sent to an accumulator to accumulate a high pressure fluid, the accumulated pressure fluid is sent to a hydraulic actuator, and the hydraulic actuator is driven to operate the generator to supply electric power.

JP 2005-214304 A

  However, when the energy conversion / supply system of Patent Document 1 is applied to a building, it is necessary to install devices such as an accumulator and a hydraulic actuator in the building, which complicates power generation equipment and increases costs. There's a problem.

  An object of this invention is to provide the building which can convert vibration energy, such as an earthquake and a wind which a building receives into an electrical energy using a simple installation in view of said point.

  The building of the present invention comprises a seismic isolation device and / or a vibration control device, and a plurality of piezoelectric elements and a suspension part for suspending each piezoelectric element, and is mounted on the seismic isolation device and / or the vibration control device. And a power generator that generates power by causing a plurality of piezoelectric elements suspended by the suspension to collide with each other in accordance with the deformation of the seismic isolation device and / or the vibration control device. It is characterized by.

  The building according to claim 2 of the present invention is characterized in that, in the above-mentioned claim 1, the seismic isolation device is a seismic isolation rubber, and the power generation device is mounted on the surface of the seismic isolation rubber.

  According to a third aspect of the present invention, the building according to the first aspect is characterized in that the vibration control device is a mass damper, and the power generation device is mounted on the surface of the mass damper.

  According to a fourth aspect of the present invention, there is provided a building according to the first aspect, wherein the vibration control device is a viscoelastic damper, and a case incorporating the power generation device is embedded in the viscoelastic body of the viscoelastic damper. It is characterized by that.

  According to the building of the present invention, a power generation device composed of a plurality of piezoelectric elements and a suspension part for suspending each piezoelectric element is mounted on the seismic isolation device and / or the vibration control device, and the seismic isolation device is provided. And / or with the deformation of the vibration control device, it is configured to generate power by causing the suspended piezoelectric elements to collide with each other, so no complicated equipment is required, only simple equipment, It becomes possible to convert vibration energy such as earthquakes received by the building into electrical energy. As a result, the power obtained by the power generation device can be used for daily use as private power generation, and the amount of power supplied from the outside can be reduced.

  Hereinafter, preferred embodiments of a building of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a front view showing an outline of a building according to the present embodiment, FIGS. 2 and 5 are conceptual diagrams of a power generation apparatus applied to the building according to the present embodiment, and FIG. FIG. 4 is a front view of the seismic isolation device to which the power generation device shown in FIG. 2 is attached, and FIG. 6 is shown in FIG. It is the figure which showed a part of damping device with which an electric power generating apparatus is mounted | worn with the cross section.

  As shown in FIG. 1, the building 1 which is this Embodiment is a building of a reinforced concrete structure, for example, and is provided with the base part 2 in the building lower part. A seismic isolation device 20 is interposed between the building 1 and the foundation 2 in accordance with the column position. A vibration control device 30 is installed on the roof of the building 1. The seismic isolation device 20 and the vibration control device 30 are equipped with a power generation device 10 to be described later.

  As the seismic isolation device 20 applicable in the present embodiment, for example, a seismic isolation rubber as shown in FIG. 3 can be cited. The seismic isolation rubber 20 is a known one in which rubbers 22 and thin metal plates 23 are alternately stacked between two flanges 21 in the vertical direction, and the metal plates 23 and the rubber against vibrations such as earthquakes. By deforming 22 in the horizontal direction, the vibration of the ground is prevented from being propagated to the building.

  Moreover, as the damping device 30 applicable in this Embodiment, the mass damper as shown in FIG. 4, a viscoelastic damper shown in FIG. 6, etc. can be mentioned, for example. The mass damper 30 shown in FIG. 4 includes a laminated rubber 31 fixed on the installation surface and a weight 32 placed on the laminated rubber 31, and the building is shaken by an earthquake or a wind. In this case, the shaking of the building is reduced by horizontally moving the weight 32 so as to correspond to the vibration period of the building 1. More specifically, when a sensor (not shown) senses shaking of a building, the motor 33 is driven to rotate the ball screw 34, and the movable portion 35 is moved in the horizontal direction, whereby the laminated rubber 31 is moved. The weight 32 is horizontally moved by being deformed. Further, the viscoelastic damper 30 ′ in FIG. 6 is a layer in which the viscoelastic body 36 and the steel plate 37 are layered, and the shaking of the building during the earthquake is reduced by the viscous resistance force at the time of shear deformation of the viscoelastic body 36.

  In the present embodiment, the power generation device 10 composed of piezoelectric elements is attached to the surfaces of the seismic isolation device 20 and the vibration control device 30, and the piezoelectric device is deformed as the seismic isolation device 20 and the vibration control device 30 are deformed. By transforming the element, vibration energy is converted into electric energy to generate electricity.

  As shown in the upper diagram of FIG. 2, the power generation device 10 includes a plurality of piezoelectric elements 11 and a suspension portion 12 that suspends each piezoelectric element 11. The piezoelectric element 11 converts mechanical strain such as vibration and pressure into a voltage, and a known element such as a lead zirconate titanate-based piezoelectric ceramic is applied. Moreover, the suspension part 12 is comprised from an electric wire and a cable, for example, and as shown in the upper figure of FIG.

  In the power generation apparatus 10 having the above-described configuration, the plurality of piezoelectric elements 11 suspended from the suspension portion 12 are regarded as one unit, and the plurality of units are the surface 26 of the seismic isolation device 20 and the surface 36 of the vibration control device 30 of the building 1. It is attached to. More specifically, the mounting location of the power generation device 10 is shown as follows. The side surface 26 of the seismic isolation device 20 as shown in FIG. 3, and the laminated rubber 31 of the vibration control device 30 and the surface 36 of the weight 32 as shown in FIG. It is.

  As shown in the lower diagram of FIG. 2, when the seismic isolation device 20 and the vibration control device 30 are deformed as shown in the figure due to an earthquake or the like, the piezoelectric elements 11 suspended at different lengths move randomly. The piezoelectric elements 11 repeatedly collide with each other, whereby energy generated by the collision is converted into electric energy.

  The piezoelectric element 11 has a characteristic of generating a voltage when the displacement speed changes with time. By suspending and installing a plurality of piezoelectric elements 11 as in the power generation device 10 in the present embodiment, each piezoelectric element 10 swings when the seismic isolation device 20 and the seismic control device 30 are deformed, and piezoelectric Since the elements 11 collide repeatedly, it is possible to improve the power generation amount per piezoelectric element.

  The AC voltage generated by the deformation of the piezoelectric element 11 is rectified and smoothed by the storage circuit as shown in FIG. 2 to become a DC voltage, and the battery is charged with electric power. Note that the obtained power may be used as illumination by instantaneous light emission without charging the battery.

  In addition, as shown in FIG. 5, a power generation device 10 configured with several piezoelectric elements 11 and hanging parts 12 as units may be housed in a case 13 and used as a power generation module 100. By storing the power generation device 10 in the thin case 13 having a thickness of several mm, the power generation module 100 can be embedded inside the viscoelastic body 36 having a thickness of 6 to 7 mm as shown in FIG. Even when the viscoelastic damper 30 ′ shown in FIG. 6 is deformed, similarly to the above, the plurality of piezoelectric elements 11 suspended in the case 13 embedded in the viscoelastic body 36 are randomly swung, It is possible to generate power by repeating the collision between the elements 11.

  As described above, according to the building of the present embodiment, the power generation apparatus 10 including the plurality of piezoelectric elements 11 and the hanging portion 12 that suspends each piezoelectric element 11 is replaced with the seismic isolation apparatus 20 and A configuration in which power generation is performed by attaching to the seismic isolation device 30 and causing the plurality of suspended piezoelectric elements 11 to collide with each other as the seismic isolation device 20 and / or the vibration control device 30 is deformed. Thus, it is possible to convert vibration energy such as an earthquake received by a building into electrical energy with simple equipment without requiring complicated equipment.

  Further, according to the building of the present embodiment, the power generation device 10 is configured by suspending and installing the plurality of piezoelectric elements 11, so that it is suspended along with the deformation of the seismic isolation device 20 and the vibration control device 30. Since the lowered piezoelectric elements 11 can be frequently collided to repeatedly deform the piezoelectric elements 11, the power generation efficiency can be improved.

  Moreover, it becomes possible to reduce the electric power supply amount from the outside by allocating the electric power obtained by the electric power generation apparatus 10 for daily use as private power generation. Furthermore, it can be applied to emergency lighting, guide lights, and various uses in the event of a disaster such as an earthquake, which helps improve safety, suppress the occurrence of secondary disasters, and promote recovery.

  In the above embodiment, the example in which both the seismic isolation device 20 and the vibration control device 30 are installed in the building 1 has been shown. However, the present invention is not limited to this, and the building 1 is seismically isolated. Any one of the device 20 and the vibration control device 30 may be installed and the power generation device 10 may be attached.

FIG. 1 is a front view showing an outline of a building according to the present embodiment. FIG. 2 is a conceptual diagram of a power generation device applied to the building of the present embodiment. FIG. 3 is a front view showing a part of the seismic isolation device to which the power generation device shown in FIG. 2 is attached. FIG. 4 is a front view of the vibration control device to which the power generation device shown in FIG. 2 is attached. FIG. 5 is a conceptual diagram of a power generation device applied to the building of the present embodiment. 6 is a cross-sectional view of a part of the vibration control device to which the power generator shown in FIG. 5 is attached.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building 10 Power generation device 11 Piezoelectric element 12 Hanging part 13 Case 20 Seismic isolation device 26 Seismic isolation device surface 30 Seismic control device 36 Seismic control device surface 100 Power generation module

Claims (4)

Seismic isolation devices and / or vibration control devices;
It comprises a plurality of piezoelectric elements and a suspending part for suspending each piezoelectric element, and is attached to the seismic isolation device and / or the vibration control device, thereby deforming the seismic isolation device and / or the vibration control device. Accordingly, a power generation device that generates power by causing a plurality of piezoelectric elements suspended by the suspension portion to collide with each other;
A building characterized by having   The building according to claim 1, wherein the seismic isolation device is a seismic isolation rubber, and the power generation device is mounted on a surface of the seismic isolation rubber.   The building according to claim 1, wherein the vibration control device is a mass damper, and the power generation device is mounted on a surface of the mass damper.   The building according to claim 1, wherein the vibration control device is a viscoelastic damper, and a case containing the power generation device is embedded in a viscoelastic body of the viscoelastic damper.

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