Static structures (e.g. – buildings) – Means compensating earth-transmitted force – Relative motion means between a structure and its foundation
Patent
1988-05-20
1989-10-24
Raduazo, Henry E.
Static structures (e.g., buildings)
Means compensating earth-transmitted force
Relative motion means between a structure and its foundation
52 1, E02D 2734
Patent
active
048753130
ABSTRACT:
There is disclosed a device for suppressing vibration of a structure such as building, a bridge and the like. The vibration-suppressing device includes a tank disposed on the structure, a liquid contained in the tank, and damping mechanism disposed within the tank. The amount of the liquid is such that the natural period of the liquid is equal to that of the structure. The damping mechanism is of a net construction. When the structure is vibrated due to earthquake, wind or the like, the liquid in the tank vibrates for a quarter of a period out of phase compared to the structure, thereby suppressing the vibration of the structure. After suppressing the structure's vibration, the vibration of the liquid is effectively dampened as the liquid passes through the mesh of the dampening mechanism.
REFERENCES:
patent: 4226554 (1980-10-01), Vandiver
patent: 4292702 (1981-10-01), Phillips
patent: 4301560 (1981-11-01), Fraige
patent: 4332043 (1982-01-01), Larson
patent: 4430764 (1984-02-01), Finkelstein
patent: 4481248 (1984-11-01), Fraige
patent: 4627121 (1986-12-01), Winther
patent: 4710057 (1987-12-01), Laier
patent: 4783937 (1988-11-01), Sato
Raduazo Henry E.
Shimizu Construction Co. Ltd.
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