Bull Earthquake Eng https://doi.org/10.1007/s10518-018-0399-4 ORIGINAL RESEARCH PAPER Nonlinear modeling of cyclic response of RC beam–column joints reinforced by plain bars 1 2 3 Mahdi Adibi · Mohammad S. Marefat · Reza Allahvirdizadeh Received: 27 December 2017 / Accepted: 22 May 2018 © Springer Science+Business Media B.V., part of Springer Nature 2018 Abstract Experience of previous earthquakes shows that a considerable portion of build- ings reinforced with plain bars sustain relatively large damages especially at the beam– column joints where the damages are mostly caused by either diagonal shear cracks or intersectional cracks caused by bar slippage. While previous works mainly focus on shear failure mode, in this study, the emphasis is placed on slip based cracks as the dominant failure mode. A systematic procedure is introduced to predict the dominant failure mode at the joint which is based on the dimensional properties, reinforcement details, and axial and shear load at the joint. In addition, a relatively simple and efficient nonlinear model is proposed to simulate pre- and post-elastic behavior of the joints which fail under bar slip- page mode. In this model, beam and column components are represented by linear elastic elements, dimensions of the joint panel are defined by rigid elements, and effect of slip
Bulletin of Earthquake Engineering – Springer Journals
Published: May 28, 2018
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