Static structures (e.g. – buildings) – Means compensating earth-transmitted force – Relative motion means between a structure and its foundation
Patent
1985-12-02
1987-02-24
Ridgill, Jr., James L.
Static structures (e.g., buildings)
Means compensating earth-transmitted force
Relative motion means between a structure and its foundation
248562, 248638, E04B 198
Patent
active
046447148
ABSTRACT:
A column support for buildings is presented which protects the building from potentially damaging earthquake ground motions. In each of these column supports the weight of the building is supported by an articulated slider that may slide translationally on an underlying concave spherical surface. The pivot point of the articulated slider is substantially near to the interface of the slider and concave surface. The slider is inherently stable for all dynamic loadings, provides reliable hysteretic friction damping, and can support high loads. A highly effective support is achieved, with small amplitude pendulum motions of the support which function to absorb severe earthquakes.
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D. C. Evans and G. S. Senior, Self-Lubricating Materials for Plain Bearings, Tribology International, Oct. of 1982, pp. 243 thru 248.
Earthquake Protection Systems, Inc.
Ridgill, Jr. James L.
Zimmerman Harris
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