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FOURTH NATIONAL WORKSHOP ON BRIDGE RESEARCH IN PROGRESS:
 
RESEARCH ABSTRACT
 
Title:
Fabrication and Testing of Fiber Reinforced Composite Bridge Decks
Author(s) and Affiliation(s):
Vistasp M. Karbhari, Lei Zhao and Yanqiang Gao Division of Structural Engineering University of California, San Diego, La Jolla, CA
Principal Investigator:
Vistasp Karbhari
Sponsor(s):
Advanced Research Projects Agency and the Federal Highway Administration
Research Start Date:
1995
Expected Completion Date:
Ongoing
Research Objectives:
The objective of this study is the development of processing techniques and design approaches for the fabrication and use of replacement and new bridge decks using fiber reinforced composite materials. This will be done through the investigation of overall response to load and investigation of damage/failure mechanisms. Deck sections were designed to model the response of typical reinforced concrete deck panels of 9" depth. Experimental variables include core configuration, fabric architecture node strengthening methods, and processing routes. The design philosophy for the program is summarized in terms of three specific performance criteria: to develop stiffness through the use of skin-core architectures to mimic that in the range shown by cracked and uncracked concrete; to ensure equivalent energy levels at acceptable displacements; and to develop processing methods that are cost-effective and ensure uniformity and repeatability
Expected Products or Deliverables:
 
 
Design guidelines for the use of replacement composite bridge decks and optimized materials-process-configuration sets validated by testing, which will be usable for both replacement bridge decks and for new construction.

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