Stiffness Analysis of Recycled Self-Compacting Concrete-Filled Circular Steel Tubular Columns under Eccentric Compression

Figure 3

Failure modes of the RSCFCST columns: (a) RSCSE-3; (b) RSCSE-6; (c) RSCSE-18; (d) RSCSE-21.

(a)

(b)

(c)

(d)