Coupling Effect of Eccentricity and Slenderness Ratios on RCFST Column Instability Modes

Figure 3

Steel tube P-ε curve: (a) γ = 0.13, (b) γ = 0.23, (c) γ = 0.33, and (d) γ = 0.43.

(a)

(b)

(c)

(d)