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Efficient refined rotating‐angle softened truss model procedure to analyze reinforced concrete membrane elements
Author(s) -
Bernardo Luís Filipe Almeida,
Cerquido Bernardo Miguel Dias,
Barros Silva Jordlly Reydson,
Horowitz Bernardo
Publication year - 2018
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.201800012
Subject(s) - truss , structural engineering , stiffening , nonlinear system , reinforced concrete , materials science , softening , reinforcement , shear (geology) , engineering , composite material , physics , quantum mechanics
This article presents refinements of the rotating‐angle softened truss model (RA‐STM) to analyze reinforced concrete (RC) membrane elements. To refine the model, an efficient solution procedure to solve the nonlinear problem and a set of appropriate average stress–strain relationships for concrete and steel bars, to account for the softening and stiffening effects, are used. These refinements allow the theoretical model to predict well the behavior of RC membrane elements under shear, namely the ultimate state, including the post‐peak behavior. The results obtained from the refined model are compared with experimental results found in the literature, where good agreement is observed.