Performance of Special-Shaped Concrete-Filled Square Steel Tube Column under Axial Compression

Figure 6

Failure characteristics of stub columns: (a) L-1; (b) L-2; (c) L-3; (d) T-1; (e) T-2; (e) T-3.

(a)

(b)

(c)

(d)

(e)

(f)