Effect of Cross-Sectional Aspect Ratio on Rectangular FRP-Concrete-Steel Double-Skin Tubular Columns under Axial Compression

Figure 6

Typical failed specimens after test. (a) RC1-ec1-F6, (b) RC2-ec2-F6, (c) RC3-ec3-F6, (d) RC4-ec4-F6, (e) RC1-rc1-F6, (f) RC2-rc2-F6, (g) RC3-rc3-F6, (h) RC4-rc4-F6, (i) RC1-F6, (j) RC2-F6, (k) RC3-F6, and (l) RC4-F6.