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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: Reinforcement Limits for Reinforced Concrete Elements with High-Strength Steel
Author(s): Aishwarya Y. Puranam and Santiago Pujol
Publication: Structural Journal
Appears on pages(s): 201-212
Keywords: beams; high-strength steel; maximum reinforcement; minimum reinforcement; reinforced concrete; slabs, walls
Abstract:Building codes control the minimum and maximum amounts of longitudinal reinforcement in reinforced concrete (RC) elements to avoid brittle failure. A two-phase experimental investigation was conducted to reexamine the existing limits to allow the use of high strength steel reinforcement (HSSR) with fy > 80 ksi (550 MPa). The test results suggested that it is feasible to use HSSR (with fy up to 120 ksi [830 MPa]). Careful projection of existing limits to HSSR produced elements with similar toughness as those with conventional reinforcement (Grade 60, fy = 60 ksi [415 MPa]). The results presented also supported code provisions to allow the use of HSSR introduced in ACI 318-19.
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