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Influence of axial tension on the shear strength of RC beams without stirrups
Author(s) -
Pham Duc Toan,
Fouré Bernard,
Pinoteau Nicolas,
Abouri Salim,
Mège Romain
Publication year - 2021
Publication title -
structural concrete
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.912
H-Index - 34
eISSN - 1751-7648
pISSN - 1464-4177
DOI - 10.1002/suco.202000077
Subject(s) - structural engineering , shear (geology) , cracking , ultimate tensile strength , beam (structure) , tension (geology) , reinforced concrete , materials science , limit state design , digital image correlation , engineering , composite material
This contribution is addressing the investigation on the effect of axial tension on the shear strength of reinforced concrete beam elements without stirrups. The paper presents the results of a test program of 15 beams without stirrups that differed from each other mainly by the intensity of the axial tensile force N . During the tests, cracking was measured by Digital Image Correlation technique to identify the crack evolution mechanisms. After some consideration on the resisting mechanisms, the experimental results are compared with several code formulas to predict the shear strength V Rc . Then an empirical formula is proposed for the variation of V Rc between its two limits: the values for N = 0 and for V Rc = 0 at the ultimate limit state of axial tension. This formula makes it possible to easily design for shear and tension.