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A practical system for isolating structures from earthquake attack
Author(s) -
Skinner R. I.,
Beck J. L.,
Bycroft G. N.
Publication year - 1974
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290030308
Subject(s) - structural engineering , base isolation , flexibility (engineering) , engineering , structural system , range (aeronautics) , reliability (semiconductor) , damper , earthquake resistance , aerospace engineering , mechanical engineering , power (physics) , statistics , physics , mathematics , frame (networking) , quantum mechanics
The recent development of a range of hysteretic energy absorbers permits practical shock isolation systems to be incorporated in the bases of a wide range of structures. This isolation gives reduced earthquake loads which may be resisted by the normal lateral strength of the structure. Hence a plastic reserve of earthquake resistance is no longer essential. A wider choice of architectural and structural forms is available with such an isolation system. The structures may be designed to prevent structural and non‐structural damage with a high degree of reliability. The special hysteretic dampers limit the lateral movement of the base of a structure to a few inches. With these small movements the lateral flexibility required for an isolating system can be conveniently provided, for many structures, by rubber bearings.