Title:
Experimental Evaluation of Deep Beams with High-Strength Concrete and High-Strength Reinforcing Bar
Author(s):
Robert D. Devine, Steven M. Barbachyn, Ashley P. Thrall, and Yahya C. Kurama
Publication:
Structural Journal
Volume:
115
Issue:
4
Appears on pages(s):
1023-1036
Keywords:
high-strength concrete; high-strength steel reinforcement; low aspect ratio; reinforced concrete; shear design; stocky walls
DOI:
10.14359/51702229
Date:
7/1/2018
Abstract:
This paper describes an experimental evaluation on the isolated and combined effects of high-strength concrete and high-strength steel on the behavior of stocky reinforced concrete structures. Monotonic lateral load tests were conducted on four cantilever deep beam specimens, which represented slices along the length of a prototype stocky shear wall without boundary regions/members. The specimen using both high-strength steel and high-strength concrete resulted in the greatest lateral strength and deformation capacity, demonstrating the benefits of high-strength concrete when using high-strength steel in stocky structures. Inadequacies in code-based predictions were observed for peak wall lateral strength and stiffness, pointing to the need to reassess the current design provisions for stocky walls.
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