TY - JOUR N2 - The aim of the paper is to investigate the shear failure mechanisms in T-shape, single span and simply supported beams exclusively reinforced with longitudinal glass fiber reinforced polymer (GFRP) bars. Usually the critical shear crack in RC beams without stirrups develops through the theoretical compression strut reducing the shear strength following the shear failure. The main parameter affecting the crack pattern and the shear strength of the beams is the shear slenderness. However, the test results presented in the paper indicated the new arching effect due to the bond losing between the GFRP flexural reinforcement and concrete. This failure mode revealed unexpected critical crack pattern and failure mode. The research of concrete beams flexurally reinforced with GFRP bars without stirrups indicated two failure modes: typical shear-compression and a new one leading by the bond losing between the ordinary reinforcement and concrete. L1 - http://www.czasopisma.pan.pl/Content/115641/PDF-MASTER/34_ace-2018-0074.pdf L2 - http://www.czasopisma.pan.pl/Content/115641 PY - 2018 IS - No 4/II EP - 283 KW - shear KW - GFRP reinforcement KW - bond behaviour A1 - Kaszubska, M. A1 - Kotynia, R. PB - WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING and COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES VL - Vol. 64 DA - 15.12.2018 T1 - Influence of bond behaviour of flexural GFRP reinforcement on failure mechanisms in beams without stirrups SP - 269 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/115641 T2 - Archives of Civil Engineering ER -