Base isolated building of wind resisting type
AssigneeKajima Corporation
InventorKenichi Yano
Life of this patent
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Abstract
A house 2 is isolated from the foundation 1 by a rolling bearing 3. A vibration control device 6 with a releasable rigid connector 5 is added in parallel to the rolling bearing 3. Further, a release controller 8 of the rigid connector 5 is connected to the output end of an earthquake detector 7 on the house 2, so as to release the rigid connector 5 in response to output signal from the earthquake detector 7. Thus, the building 2 normally stands without vibration against wind by rigid connection to the foundation 1 through the rigid connector 5. On the other hand, when earthquake occurs, the rigid connector 5 is released by the release controller 8 by the output from the earthquake detector 7, so as to control the vibration of the building 2 by a combination of the rolling bearing 3 and the vibration control device 6.
Claims4
A base isolated building of wind resisting type having a base portion thereof supported by a foundation through a rolling bearing, the building comprising a vibration control device with a releasable rigid connector disposed between the building and the foundation, an earthquake detector mounted on the building, and a release controller connected to output from said earthquake detector and said rigid connector, the release controller being adapted to release said releasable rigid connector in response to output signal from the earthquake detector, whereby normally the building being securely fixed to the foundation against wind pressure by the rigid connector of the vibration control device, while upon occurrence of earthquake, the rigid connector is released by the release controller in response to the output from the earthquake detector so as to control vibration of the building by a combination of said rolling bearing and said vibration control device.
Dependencies are inferred from the claim text.