The Colebrand Lock-up Device (LUD) provides additional substructure strength to resist seismic forces as a structural shock transmission unit for highway bridges. This system can provide a temporary rigid link between bridge structural members under seismic, braking, or other fast-acting type loads, while permitting slow thermal movements.
Fact Sheet ID Number
Structural Connection Technologies
bridge lockup, colebrand lockup device, lud, bridge, earthquake
Date of this Version
ECT Team, Purdue, "Bridge Lock-up Device System" (2007). ECT Fact Sheets. Paper 94.