1994 Volume 1 Issue 2 Pages 67-80
This paper reports the deformation capacity of concrete filled steel columns on researching papers and the results of the bending shear tests of concrete filled steel columns. Then we derive a formula for limit rotation angle, axial force ratio and the diameter-to-thickness ratio. From the test results, we confirm the efficiency of the proposed formula in the estimation of the limit rotation angle, and we extend that formula to be applicable to high-strength materials, for concrete and steel.