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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: Secant Stiffness Method for Inelastic Design of Strut-and-Tie Model
Author(s): Tae-Sung Eom and Hong-Gun Park
Publication: Structural Journal
Appears on pages(s): 689-698
Keywords: performance-based design; reinforced concrete; secant stiffness; strut-and-tie model
Abstract:A secant stiffness method was developed for the inelastic design of strut-and-tie models (STMs). According to the design strategy intended by the engineer, struts and ties are classified as elastic and inelastic elements. For the inelastic elements, secant stiffness is used to address the effect of inelastic deformations. By performing linear analysis for the STM, the forces and inelastic deformations of the struts and ties are directly determined. The safety of the struts and ties is evaluated by using deformation-dependent failure criteria. The proposed method was applied to existing test specimens including a deep beam, a coupling beam, and a shear wall. The design results were compared with the properties and deformation capacities of the test specimens.
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