The influence of flexural reinforcement yielding on the shear strength of reinforced concrete beams with and without shear reinforcement

نویسندگان

چکیده

Statically indeterminate structures such as continuous beams allow redistribution of internal forces. For increasing loads after yielding the flexural reinforcement, shear forces may increase, making it possible to reach failures full capacity structure is developed.
 An extensive experimental programme consisting 30 tests (15 cantilever and 15 beam tests) was carried out assess strength reinforced concrete with without reinforcement. Some were designed fail in The main objective this study analysing influence large strains on strength.
 instrumented by means surface measurements using Digital Image Correlation (DIC). These allowed controlling evolution at obtain rotation plastic hinges tracking development kinematics critical crack obtain, accounting for suitable constitutive models, contribution various shear-transfer actions.
 analysis test results confirmed reduction provided both Moreover, component weakened reinforcement ratios. compared values predicted different design codes, showing that these formulations did not properly capture loss caused deformation. proposed simplified method calculate demand shows consistent agreement results.

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ژورنال

عنوان ژورنال: Hormigón y Acero

سال: 2022

ISSN: ['2605-1729', '0439-5689']

DOI: https://doi.org/10.33586/hya.2022.3087