Static structures (e.g. – buildings) – Means compensating earth-transmitted force – Relative motion means between a structure and its foundation
Patent
1976-08-18
1978-06-13
Perham, Alfred C.
Static structures (e.g., buildings)
Means compensating earth-transmitted force
Relative motion means between a structure and its foundation
52403, 52721, 52726, 403187, 403220, 403364, E04B 198
Patent
active
040941116
ABSTRACT:
An improved frame for a building formed of structural frame members of steel or other structural metal. The structural frame members are connected together by many resilient connectors, each connector including a bolt having resilient sleeve means surrounding the same. The bolt has a head at one end and a nut threadably mounted at its opposite end. The bolt and sleeve means are inserted through aligned, oversized holes in a pair of adjacent structural members and the nut is threaded on the bolt to interconnect the structural frame members yet allow one structural frame member to slide over the other member, such as during an earthquake, to permit dissipation of energy by the heat of friction. The sleeve means also absorbs some of the energy and allows the structural frame members to return to their initial relative positions after they have been displaced relative to each other. Several embodiments of the sleeve means are disclosed.
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