Title:
Tests of Decommissioned Box Beams Strengthened with CFRP Laminates
Author(s):
Andreas Stavridis
Publication:
Web Session
Volume:
ws_F23_AndreasStavridis.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/29/2023
Abstract:
This presentation will discuss the findings of an experimental program involving the tests to failure of three 56-ft long prestressed concrete box beams strengthened with Carbon Fiber Reinforced Polymer (CFRP) laminates and anchors. The beams were obtained from a highway bridge, located in Buffalo, NY, which was replaced after 37 years in service. The goal of the study was to investigate the effectiveness of the strengthening method and the influence of design variations when applied to deteriorated beams. The beams were extensively instrumented and were subjected to four-point-bending tests. The tests were conducted at the service- and capacity levels prior to and after the retrofit. Service-level tests simulated the vehicular load as per AASHTO specifications. The capacity-level tests examined the behavior of the retrofitted beams until failure. The presentation will discuss the design variations and their influence on the behavior and failure patterns of the beams.