The Ductile Behaviour Including Flexural Strength of High-Strength Concrete Members Subjected to Flexure

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Title: The Ductile Behaviour Including Flexural Strength of High-Strength Concrete Members Subjected to Flexure

Author(s): Sung-Woo Shin, Suk-Hyung Yoo, Jong-Moon Ahn and Kwang-So0 Lee

Publication: Special Publication

Volume: 172

Issue:

Appears on pages(s): 247-280

Keywords: Compressive strength; ductility; flexural strength; high-strength concretes

Date: 12/1/1999

Abstract:
Fifteen high-strength concrete beams were tested under concentrated load at two-point to investigate their ductile behavior including flexural strength with various compressive stress distribution. And six high strength concrete beams were tested to investigate the minimum reinforcement ratios requirements for high strength concrete. Thus major test variables were the compressive strengthes of concrete and tensile steel ratios. The test results were compared with flexural strength predicted by ACI 318-95. It was found that high strength concrete beams with maximum reinforcement ratio of ACI 318-95 accompany brittle failure and that compressive stress of high strength concrete beams is distributed linearly than that of normal strength concrete beams. New maximum reinforcement ratio is proposed for the ductile behavior of high strength concrete beams.