Elasto-plastic damper

Details Elasto-plastic damper Elasto-plastic damper

1989-11-21

1991-11-19

Murtagh, John E.

Static structures (e.g., buildings)

Means compensating earth-transmitted force

Relative motion means between a structure and its foundation

52167R, 248548, 248580, 248638, E04B 198, E04H 902

Patent

active

050655558

ABSTRACT:
An elasto-plastic damper is adapted to be used in a structure, such as a building and other facilities, for absorbing vibration energy created by earthquake tremors and other ground vibrations. The damper is a centrally bulged and generally cone-shaped hollow body of revolution so that its section modulus changes substantially porportional to a bending moment created in the damper body due to horizontal stresses, thus permitting a maximum degree of deformability. This elasto-plastic damper is compact in size and demonstrates a high degree of vibrational energy absorbability.

REFERENCES:
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patent: 4187573 (1980-02-01), Fyfe et al.
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patent: 4527365 (1985-07-01), Yoshizawa et al.
patent: 4633628 (1987-01-01), Mostaghel
patent: 4713917 (1987-12-01), Buckle et al.
patent: 4766708 (1988-08-01), Sing
patent: 4826128 (1989-05-01), Schmeller
patent: 4959934 (1990-10-01), Yamada et al.

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