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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Cyclic Mastic Strut-Tie Modeling of Shear-Critical Reinforced Concrete Members
Author(s): J.-H. Kim and J. B. Mander
Publication: Special Publication
Appears on pages(s): 707-728
Keywords: concrete; crack; inelastic behavior; shear
Abstract:shear and When structural concrete members are subjected to a combination of flexure, the behavior under lateral loading becomes complex and difficult to predict, even with sophisticated nonlinear finite element methods of analysis. As a way of resolving the situation, this paper introduces CIST (Cyclic Inelastic Strut-Tie) modeling and demonstrates the implementation of the technique with a general-purpose inelastic computer program. However, the proposed CIST technique requires the proper selection of element models and their dimensioning. For this, a numerical integration scheme is employed. In application of CIST modeling technique to shear-critical concrete members, the post-cracked state is considered. Element models for longitudinal and transverse reinforcing steel and concrete in compression and tension are grouped as per the lateral loading direction to represent the shear and flexural components, connected together through the idealized nodes. The proposed CIST technique was validated against the experimentally observed behavior of shear-critical reinforced concrete members subjected to reversed cyclic lateral loading. It is demonstrated that the CIST modeling technique is able to capture the combined response of shear and flexure quite well.
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