Static structures (e.g. – buildings) – Machine or implement
Patent
1994-04-22
1995-10-24
Firedman, Carl D.
Static structures (e.g., buildings)
Machine or implement
522238, 403 43, 403305, 411433, E04C 326
Patent
active
054599733
ABSTRACT:
An energy dissipating connector for coupling first and second structural members together has a first attachment member attachable to a first rebar member of the first structural member and a second attachment member attachable to a second rebar member of the second structural member such that the second attachment member is slidably connectable to the first attachment member whereby sliding of the second attachment member relative to the first attachment member permits relative motion of the first and second structural members and dissipates energy tending to cause such motion. The second attachment member is preferably slidably moveable relative to the first attachment member by approximately 1/4 inch in either direction and the second attachment member preferably moves relative to the first attachment member in response to force of at least 90,000 pounds. The first and second attachment members are preferably attachable to the first and second rebar portions via screw threads. A sleeve threadably attaches the second attachment member to the first attachment member, the second attachment member being slidably disposed within a bore formed in the sleeve.
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"No-Slip Reinforcing Steel Coupler", Promotional Material of Fox-Howlett Indusries, Inc. (1 Sheet).
"Added Damping and Stiffness Elements For Improving the Earthquake Performance of Structures", by Roger E. Scholl of CounterQuake Corp. (pp. 101-111 and 117).
"Seismic Retrofit With Energy Dissipators", by Egor P. Popov and all, NSF Project Summary of Nov. 1991 (3 Sheets).
"DYWIDAG Threadbar Reinforcing System/Posttensioning System" Promotional Material of DSI DYWIDAG Systems Int'l. (2 Sheets).
Firedman Carl D.
Yip Winnie S.
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