Title: Full-Range Behavior of High-Strength Concrete Flexural Members: Comparison of Ductility Parameters of High and Normal-Strength Concrete Members

Author(s): Raghu Pendyala, Priyan Mendis, and lndubhushan Patnaikuni

Publication: Structural Journal

Volume: 93

Issue: 1

Appears on pages(s): 30-35

Keywords: ductility; high-strength concrete; hinges (structural).

DOI: 10.14359/9837

Date: 1/1/1996

Abstract:
High-strength concrete (f,’ . 50 MPa) is a far more brittle material than normal-strength concrete. As a result, doubts have been expressed as to the ductility inherent in members made of high-strength concrete. This paper details tests on flexural members made with high-strength concrete with a view of determining three key ductility parameters: hinge lengths, soften- ing slopes, and hinge rotation capacities. These key parameters are then compared with similar parameters for normal-strength concrete, and the flex-implications of designing with high-strength concrete are discussed. The paper concludes that high-strength concrete members exhibit qualitatively soften-similar trends in ductility when compared with normal-strength concrete,and that, despite high-strength concrete being a more brittle material, fleximural members made with high-strength concrete exhibit greater ductility,