ACTIVE-CONTROL AND FORCED-VIBRATION STUDIES ON HIGHWAY BRIDGE

The authors successfully implemented and tested a full-scale, active, structural vibration-control system on an 80-m (250-ft) span, steel-truss highway bridge. Researchers achieved more than 90 percent reduction in global mode response during testing using random, sinusoidal, and step-release disturbance excitations. Control performance was maintained despite large changes in the dynamic characteristics of the structure due to environmental effects. Investigators demonstrated the feasibility and reliability of a new technique to active structural vibration-control--adaptive modal filter based independent modal space control. The practical problems associated with the viability of commercial control installations on civil facilities were identified and discussed.

Language

  • English

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Filing Info

  • Accession Number: 00711527
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 12 1995 12:00AM