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Refined Softened Truss Model with Efficient Solution Procedure for Prestressed Concrete Membranes

Bernardo, L. F. A. / Lyrio, A. R. B. / Silva, J. R. B. / Horowitz, B.

This article presents a refinement of the rotating-angle softened truss model (RA-STM) for prestressed concrete (PC) membrane elements. To refine the RA-STM, an efficient solution procedure to solve the set of nonlinear equations is presented. Appropriate average stress-strain relationships for concrete and steel bars are also used in the solution procedure. The theoretical results obtained from the refined RA-STM are compared with some experimental results found in the literature and also with the original RA-STM. It is shown that the refined RA-STM captures better the behavior of PC membrane elements under shear and also predicts better the shear strength.

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Refined Softened Truss Model with Efficient Solution Procedure for Prestressed Concrete Membranes

Bernardo, L. F. A. / Lyrio, A. R. B. / Silva, J. R. B. / Horowitz, B.

This article presents a refinement of the rotating-angle softened truss model (RA-STM) for prestressed concrete (PC) membrane elements. To refine the RA-STM, an efficient solution procedure to solve the set of nonlinear equations is presented. Appropriate average stress-strain relationships for concrete and steel bars are also used in the solution procedure. The theoretical results obtained from the refined RA-STM are compared with some experimental results found in the literature and also with the original RA-STM. It is shown that the refined RA-STM captures better the behavior of PC membrane elements under shear and also predicts better the shear strength.

Refined Softened Truss Model with Efficient Solution Procedure for Prestressed Concrete Membranes

Bernardo, L. F. A. / Lyrio, A. R. B. / Silva, J. R. B. / Horowitz, B.

This article presents a refinement of the rotating-angle softened truss model (RA-STM) for prestressed concrete (PC) membrane elements. To refine the RA-STM, an efficient solution procedure to solve the set of nonlinear equations is presented. Appropriate average stress-strain relationships for concrete and steel bars are also used in the solution procedure. The theoretical results obtained from the refined RA-STM are compared with some experimental results found in the literature and also with the original RA-STM. It is shown that the refined RA-STM captures better the behavior of PC membrane elements under shear and also predicts better the shear strength.

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Title:

Refined Softened Truss Model with Efficient Solution Procedure for Prestressed Concrete Membranes

Contributors:

Bernardo, L. F. A. (author) / Lyrio, A. R. B. (author) / Silva, J. R. B. (author) / Horowitz, B. (author)

Published in:

Journal of Structural Engineering ; 144

Publication date:

2018-03-20

ISSN:

0733-9445 , 1943-541X

DOI:

https://doi.org/10.1061/(ASCE)ST.1943-541X.0002044

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

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