Table of Experimental Studies on CFT Members Subjected to Torsion

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General Information

Reference Experiment Synopsis Number of Tests Results Reported Main Parameters Comments
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
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


Specimen Information

Reference Length (L) (in) Length/Diameter (L/D) End Conditions
Lee et al., '91 16.0, 15.2 4, 3.4 N.A.
Xu, Zhou, and Lee 1991 see L/D 7, 13, 20 N.A.


Cross Section Information

Reference Tube Dimensions Steel Properties Concrete Properties
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
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