E - Fixed Constructions – 01 – D
Patent
E - Fixed Constructions
01
D
E01D 19/04 (2006.01) E01D 19/00 (2006.01) E04H 9/02 (2006.01)
Patent
CA 2082018
ABSTRACT This variable damper system for a bridge is installed between an superstructure and a substructure of a bridge and can freely change the damping characteristics so that the inertial force of the superstructure generated in an earth- quake will be distributed to the substructure and the vibra- tion will be reduced, and as all the functions of a viscous damper/stopper, an energy absorber, and a stopper for prevent- ing excessive response with a shock absorber have been inte- grated in one unit of this system, so that one unit of this system can perform the same functions as those carried out by a plurality of conventions devices each having an independent function and also a narrow space on the top surface of the substructure of a bridge can be used as it is. .
Kawashima Kazuhiko
Shimizu Hideyuki
Unjoh Shigeki
Barrigar & Moss
Public Works Research Institute Ministry Of Construction
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