Experimental Study and Direct Strength Method for Cold-Formed Steel Built-Up I-Sectional Columns under Axial Compression

Figure 12

Load and axial shorten displacement curve of section DC7510 series. (a) Section DC7510-05 series. (b) Section DC7510-15 series. (c) Section DC7510-20 series.

(a)

(b)

(c)