Long period pendulum damping equipment

Details Long period pendulum damping equipment Long period pendulum damping equipment

1991-07-12

1993-12-28

Safavi, Michael

Static structures (e.g., buildings)

Means compensating earth-transmitted force

Relative motion means between a structure and its foundation

52167R, E04B 198, E04H 902

Patent

active

052728471

ABSTRACT:
A long period pendulum damping equipment having right and left pair of longer rods, right and left pair of shorter rods and a tie beam connecting these longer rods and shorter rods one another, in which a tilt angle interlocking means of both rods installed at right and left end portions of the tie beam, respectively, and keeping the tilt angle in one direction of the longer rod with respect to a vertical line always equal to the tilt angle in another direction of the shorter rod or certain ratio times thereof is provided, and a long period is provided and an installation space is made small while making the overall height low by pivoting a weight to either one of the longer or shorter rod.

REFERENCES:
patent: 1761322 (1930-06-01), Wells
patent: 5025599 (1991-06-01), Ishii et al.
patent: 5058338 (1991-10-01), Ciampi

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