Adhesion anchorage in elements strengthened with EBR technique


Vol. 559 (3) 2019 / sobota, 23 marca, 2019

(InPolish)

P. Bodzak

DOI: 10.15199/33.2019.03.08

Volume 559: Issue 3
Pages 28-32
Accepted for publication: 05.12.2018 r.

The paper presents calculation assumptions contained in the standards and regulations of SIA166, fib Bulletin 14, TR55, CNR-DT 200/2004 and used in the analysis of the load capacity of bond anchorages in reinforced concrete elements strengthened by the EBR technique. The forces and strains values of the composite in the anchorage zone determined on their basis were compared with the results of tests of elements made of weak concrete (fc,cube ≈ 20MPa) and reinforced with single CFRP tape. The analysis of equations used to determine anchorage strength and active bond length showed that the calculation assumptions presented in the guidelines are not fully correct for real constructions made of low-strength concrete.The testmodels of bond anchorages developed on the basis of separated sections of beams and the subsequent types of damage of strengthened elements with compositematerials do not reflect the actions of the anchorage zone. Keywords: EBR strengthening; CFRP; bond anchorage; anchorage load bearing capacity.
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dr inż. Przemysław Bodzak, Politechnika Łódzka; Wydział Budownictwa Architektury i Inżynierii Środowiska;

dr inż. Przemysław Bodzak, Politechnika Łódzka; Wydział Budownictwa Architektury i Inżynierii Środowiska;

przemyslaw.bodzak@p.lodz.pl

Full paper is available at Publisher house SIGMA-NOT Sp. z o.o. webpage

DOI: 10.15199/33.2019.03.08