Flexural Behavior of Laterally Damaged Full-Scale Bridge Girders Through the Use of Carbon Fiber Reinforced Polymers (CFRP)

ABSTRACT The repair and strengthening of concrete bridge members with CFRP has become increasingly popular over recent years. However, significant research is still needed in order to develop more robust guidelines and specifications. The research project aims to assist with improving design procedures for damaged concrete members with the use of CFRP. This document summarizes the analysis and testing of full-scale 40’ foot long prestressed concrete (PSC) bridge girders exposed to simulated impact damage and repaired with carbon fiber reinforced polymers (CFRP) materials. A total of five AASHTO type II bridge girders fabricated in the 1960’s were taken from an existing bridge, and tested at the Florida Department of Transportation FDOT structures lab in Tallahassee, Florida. The test specimens were tested under static loading to failure under 4-point bending. Different CFRP configurations were applied to each of the girders. Each of the test girders performed very well as each of them held a higher capacity than the control girder. The repaired girders 5, 6 and 7 surpassed the control girder’s capacity by 10.88%, 15.9% and 11.39%. These results indicate that repairing laterally damaged prestressed concrete bridge girders with CFRP is an effective way to restore the girders flexural capacity.

Grantor dc:publisher

UNF Digital Commons

Year dc:date

2012

Author dc:creator

• Alteri, Nicholas James

• Thesis; University of North Florida; UNF; Dissertations
• Academic – UNF – Master of Science in Computer and Information Sciences; Dissertations
• Academic – UNF – Computing; Carbon fiber-reinforced plastics -- Testing; Bridges -- Abutments -- Testing; Girders -- Testing; Flexure -- Testing; CFRP; Neural Network; Model Predictive Control
• Civil Engineering
• Structural Engineering

Repository record dc:identifier

https://digitalcommons.unf.edu/etd/412

OAI identifier oai:identifier

oai:digitalcommons.unf.edu:etd-1307