Title:
Behavior of High-Strength Concrete Under Torsional Triaxial Compression
Author(s):
Ali R. Khaloo and Shuaib H. Ahmad
Publication:
Materials Journal
Volume:
86
Issue:
6
Appears on pages(s):
550-558
Keywords:
compression tests; compressive strength; concretes; cylinders; high-strength concrete; lateral pressure; shear strength; triaxial loads; stress-strain relationships; torsion; Materials Research
DOI:
10.14359/2194
Date:
11/1/1989
Abstract:
Sixty-four solid cylinders {3 x 9 in. (76.2 x 228.6 mm)} using high-strength concrete were tested under uniaxial compression, shear, cylindrical triaxial compression with low lateral stresses and torsional cylindrical triaxial compression loading paths. For cylindrical triaxial compression, the concrete-filled steel tube specimens were tested under strain control condition, and complete axial stress-axial strain and axial stress-lateral strain curves were obtained. The effect of shear on the cylindrical triaxial compressive stress-strain curves was to reduce the peak stress and to increase the strain corresponding to peak stress. This effect increased as the magnitude of applied shear increased. Comparison between the results of this study under cylindrical triaxial compression with low lateral stresses for high-strength and those of other studies for normal strength concrete reveals that normal strength concrete exhibits relatively flatter post-peak behavior.