Other title: Preliminary measurement and analysis of flexure and shear strain for a carbon fiver-wrapped pier cap

Authors, as listed on cover: Douglas Nims, Victor Hunt, Arthur Helmicki, Serhan Guner; author, as listed on technical report documentation page: Eric P. Steinberg.; "Prepared in cooperation with the Ohio Department of Transportation (ODOT) and the U.S. Department of Transportation, Federal Highway Administration"--Technical report documentation page.; "May 2018."; "FHWA/OH-2018-7"--Technical report documentation page.; Technical summary.; Sponsored by Ohio Department of Transportation, Research Section; State job number: 134690The Ohio Department of Transportation (ODOT) is considering using carbon fiber reinforced polymer fabric (CFRP) to strengthen bridge pier caps. As a trial, a CFRP retrofit for the north pier of Bridge FRA-071-1835L had been made. ODOT wished to ascertain if the installed CFRP was carrying load. In cooperation with ODOT, researchers from The University of Toledo (UT) and The University of Cincinnati (UC) designed a program that was primarily experimental with analytical support. The researchers reviewed the consultants' calculations for the analysis of the pier and design of the CFRP. The researchers made two site visits to test the most effective methods to measure strain and the contribution of the CFRP. During the first site visit, a series of tests was made to determine the right adhesives and if the strain levels were large enough to measure. During the second site visit, the tests targeted measuring strain and experimentally assessing the strain field. Linear 2D finite element analysis was used to assess the reasonableness of the test results and estimate the response of the pier cap without CFRP