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Negative stiffness vibration reduction and isolation device for continuous beam
The apparatus comprises a trigger device 1, a sliding device 2, a buffer device 3, a fixing device 4, a positive stiffness spring group 5 and a negative stiffness spring group 6. The top of the trigger device is fixedly connected with a lower wing plate of a main beam of a continuous beam, and the buffer device is fixedly installed at a middle portion of the fixing device. An inner side of the sliding device is connected to the buffer device via the negative stiffness spring group, two sides of the sliding device are connected with the fixing device via the positive stiffness spring group and the fixing device is fixed at the top of a movable pier. The sliding device is configured to move along tension and compression directions of the positive stiffness spring group. The apparatus acts to reduce the vibration of the movable bridge or pier during an earthquake.
Negative stiffness vibration reduction and isolation device for continuous beam
The apparatus comprises a trigger device 1, a sliding device 2, a buffer device 3, a fixing device 4, a positive stiffness spring group 5 and a negative stiffness spring group 6. The top of the trigger device is fixedly connected with a lower wing plate of a main beam of a continuous beam, and the buffer device is fixedly installed at a middle portion of the fixing device. An inner side of the sliding device is connected to the buffer device via the negative stiffness spring group, two sides of the sliding device are connected with the fixing device via the positive stiffness spring group and the fixing device is fixed at the top of a movable pier. The sliding device is configured to move along tension and compression directions of the positive stiffness spring group. The apparatus acts to reduce the vibration of the movable bridge or pier during an earthquake.
Negative stiffness vibration reduction and isolation device for continuous beam
SHITONG CHEN (author) / MAOJIANG ZHANG (author) / YIQIANG LI (author) / FENG LI (author) / YAOHUI ZHANG (author) / JINJIANG WANG (author) / YAO MA (author)
2021-09-08
Patent
Electronic Resource
English
IPC:
E01D
BRIDGES
,
Brücken
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