Table of Experimental Studies on CFT Members Subjected to Torsion

General Information
Reference Experiment Synopsis Number of Tests Results Reported Main Parameters Comments
Xu, Zhou, and Lee 1991

Tests of medium & long CFTs under compression and torsion

27 CFTs (3 pure compr., 3 pure torsion)
  • P vs. ε
  • T vs. θ
  • T vs. P/Po
  • L/D
  • α


Lee et al., '91

Monotonic & cyclic studies of CFTs under compression & torsion
  • 47 CFTs (col, monotonic)
  • 6 CFTs (col, cyclic)
  • T vs. P/Po (monotonic)
  • T vs. θ (monotonic & cyclic)


Limited description of experiment
Specimen Information
Reference Length (L) (in) Length/Diameter (L/D) End Conditions
Xu, Zhou, and Lee 1991


see L/D

7, 13, 20


N.A.
Lee et al., '91

16.0, 15.2

4, 3.4

N.A.
Cross Section Information
Reference Tube Dimensions Steel Properties Concrete Properties
Xu, Zhou, and Lee 1991
  • ◌: diam. (D) □: depth (D): 3.54, 4.49 (circular)
  • Wall thickness: 0.157, 0.177 in
  • Diameter/Thickness (D/t): 22.5, 25.4

Seankess steek tybe

Fy: 44.6 ksi

f'c: 3.0, 3.2 ksi
Lee et al., '91
  • ◌: diam. (D) □: depth (D):4.0, 4.5 in (circular)
  • Wall thickness: 0.063, 0.177 in
  • Diameter/Thickness (D/t): 64, 25.3

Fy: 35.1, 40.6 ksi

f'c: 4.77, 3.97 ksi