A METHODOLOGY FOR THE DESIGN OF ENERGY DISSIPATION DEVICE FOR THE SEISMIC PROTECTION OF BRIDGES

The present work aims at establishing design criteria for a rational use of the elastic-plastic devices employed for the seismic protection of bridge structures. The proposed target is attained via an energy based approach which is formulated as an optimum problem. An appropriate non dimensional index, related to both dissipated and input energy, is assumed as a measure of the optimum performance of the device, which is constrained to comply with service and ultimate conditions of the structure. Preliminary numerical results, concerning single degree of freedom systems, show that it is possible to construct optimal design graphs that depend on only two constitutive parameters of the device: yield force and elastic stiffness. Further curves are also given which allow to perform on a "a posteriori" check of both the relevant structural response quantities and the damage level suffered by the device.

• Corporate Authors:

  Multidisciplinary Center for Earthquake Engineering Research

  State University of New York, 107 Red Jacket Quadrangle, P.O. Box 610025
  Buffalo, NY  United States  14261-0025
• Authors:
  • Ciampi, V
• Conference:
  • Proceedings of the U.S.-Italy Workshop on Seismic Protective Systems for Bridges
  • Location: Columbia University, New York, NY
  • Date: 1998-4-27 to 1998-4-28
• Publication Date: 1998-11-3

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 89-104

Subject/Index Terms

• TRT Terms: Bridges; Dissipation; Elastic analysis; Energy; Energy absorption; Plastics; Seismic prospecting; Stiffness; Structures; Yield stress
• Subject Areas: Bridges and other structures; Design; Energy; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00779875
• Record Type: Publication
• Report/Paper Numbers: MCEER-98-0015
• Contract Numbers: DTFH51-92-C-00106
• Files: TRIS
• Created Date: Dec 21 1999 12:00AM