Nonlinear Analysis of Reinforced Concrete Beam–Columns with Bond-Slip |
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Authors: | Ashraf Ayoub |
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Affiliation: | Assistant Professor, Dept. of Civil, Architectural, & Environmental Engineering, Univ. of Missouri-Rolla, Rolla, MO 65409. E-mail: ayoub@umr.edu
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Abstract: | This paper presents a new model for nonlinear analysis of reinforced concrete beam–columns with bond–slip. The model is derived from a two-field mixed formulation with independent approximation of forces and displacements. The state determination algorithm for the implementation of the model in a general purpose nonlinear finite-element analysis program is presented and its stability characteristics are discussed. Both, bond–slip and pull-out effects, are represented in the model. The paper concludes with a correlation study to investigate the validity of the model. The study confirmed the accuracy of the model in representing global and particularly local parameters. |
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Keywords: | Bond stress Slip Concrete columns Nonlinear analysis Finite elements Beam columns |
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