Title:
Shear Hinge Model for Analysis of Reinforced Concrete Columns
Author(s):
Amir Reza Tabkhi Wayghan and Vahid Sadeghian
Publication:
Structural Journal
Volume:
119
Issue:
3
Appears on pages(s):
321-334
Keywords:
lumped plasticity; nonlinear analysis; reinforced concrete columns; shear behavior
DOI:
10.14359/51734499
Date:
5/1/2022
Abstract:
One of the most computationally efficient and practical modeling methods for nonlinear analysis of reinforced concrete (RC) structures is the lumped plasticity approach. Despite its popularity, the application of the lumped plasticity method to analysis of shear-critical RC structures has been limited mainly because of the lack of a robust shear hinge model. This paper presents a rational shear hinge model for nonlinear analysis of RC columns that is capable of capturing advanced mechanisms in RC and axial-flexure-shear interaction effects. The model is developed based on fundamental equations of equilibrium and compatibility in conjunction with well-recognized constitutive material models, enabling its application to a wide range of structures. The accuracy and application range of the model are assessed by analyzing a large number of shear-critical RC columns with various design parameters and comparing the results against those obtained from experimental tests and detailed finite element analyses. The effectiveness of the proposed model for system-level analysis is also shown by modeling a multi-story frame structure.
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