Title:
High-Strength Concrete Short Beams Subjected to Cyclic Shear
Author(s):
Yan Xiao, Asadollah Esmaeily-Ghasemabadi, and Hui Wu
Publication:
Structural Journal
Volume:
96
Issue:
3
Appears on pages(s):
392-399
Keywords:
ductility; flexural strength; high-strength concretes; shear strength
DOI:
10.14359/673
Date:
5/1/1999
Abstract:
Six high-strength concrete model short beams were tested under cyclic shear in a double curvature condition. Experimental parameters included reinforcement configurations, clear span length-to-section depth ratios ranging from 3.0 to 4.0 (shear-span-to-depth ratios of 1.5 to 2.0), and flexural reinforcement ratios ranging from 2.3 to 4.5 percent. The stirrup design was based on the seismic design provisions of the ACI 318-95 Code. All the model beams developed flexural yielding prior to sliding shear failure corresponding to a displacement ductility factor of 3.5 to 6.2. The flexural strength calculated based on the ACI 318-95 Code approach was developed or exceeded. Compared with beams with conventional reinforcement configuration, the model beams with vertically distributed flexural reinforcement developed significantly improved hysteretic performance and ductility.