NCEER-TAISEI CORPORATION RESEARCH PROGRAM ON SLIDING SEISMIC ISOLATION SYSTEMS FOR BRIDGES: EXPERIMENTAL AND ANALYTICAL STUDY OF A SYSTEM CONSISTING OF LUBRICATED PTFE SLIDING BEARINGS AND MILD STEEL DAMPERS. TECHNICAL REPORT

This report describes the results of an experimental study of the behavior of a bridge seismic isolation system consisting of lubricated flat sliding bearings and mild steel dampers. Earthquake simulator tests have been performed on a model bridge structure both isolated with this system and non-isolated. The experimental results demonstrate that the system is capable of maintaining the forces transmitted to the substructure at a preset limit, however at the expense of significant permanent displacements. Analytical techniques are used to predict the dynamic response of the system and the obtained results are in good agreement with the experimental results.

• Supplemental Notes:
  • This research was partially supported by grants from the National Science Foundation and the New York State Science and Technology Foundation.
• Corporate Authors:

  State University of New York, Buffalo

  Department of Civil Engineering
  Buffalo, NY  United States  14260
• Authors:
  • Tsopelas, P
  • Constantinou, M C
• Publication Date: 1994-7-22

Language

• English

Media Info

• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 168 p.

Subject/Index Terms

• TRT Terms: Alternatives analysis; Analysis; Base isolation; Bridge bearings; Bridge design; Bridges; Dampers; Dislocation (Geology); Dissipation; Dynamic loads; Earthquake engineering; Earthquake resistant design; Forecasting; Mild steel; Structural design
• Uncontrolled Terms: Dynamic response; Experimental data; Model tests; Seismic isolation systems
• Old TRIS Terms: Analytical techniques; Sliding bridge bearings
• Subject Areas: Bridges and other structures; Design; Energy; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00674259
• Record Type: Publication
• Report/Paper Numbers: NCEER-94-0022
• Contract Numbers: NSF BCS 90-25010, NYSSTF NEC-91029
• Files: TRIS
• Created Date: Feb 16 1995 12:00AM