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FOURTH NATIONAL WORKSHOP ON BRIDGE RESEARCH IN PROGRESS:
 
RESEARCH ABSTRACT
 
Title:
Seismic Fragility Analysis of Conventional Reinforced-Concrete Highway Bridges
Author(s) and Affiliation(s):
Chris L. Mullen and Ahmet S. Cakmak Department of Civil Engineering and Operations Research Princeton University, Princeton, NJ
Principal Investigator:
Ahmet S. Cakmak
Sponsor(s):
Federal Highway Administration and National Center for Earthquake Engineering Research
Research Start Date:
July 1995
Expected Completion Date:
June 1996
Research Objectives:
Seismic fragility curves are constructed for conventional reinforced-concrete highway bridges on the basis of detailed structural analysis. Such curves provide a rational basis for improving the Applied Technology Council's ATC-13 damage-probability matrices that were constructed on the basis of expert opinion alone. The analyses themselves also provide insight into various aspects of highway bridge seismic damage modeling and dynamic response.
Expected Products or Deliverables:
Fragility curves and corresponding damage-probability-matrices for conventional highway bridge structures are constructed for comparison with ATC-13. Simulated time histories, damage state predictions, and damage-intensity relationships of structures analyzed using nonlinear dynamic finite element method provide new knowledge on damage behavior of these structures.

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