Influence of concrete compaction on the strength of concrete-filled steel RHS columns

Behavior of CFST short column and beam with initial concrete imperfection: Experiments

“…2(a), where the axial loading was applied through V-shape edges to each specimen. Prior to loading, two steel caps were installed at both ends of the specimen, and the V-shape edge was fabricated by a 7 mm deep groove which had been accurately machined in the middle of the steel cap (Han and Yao [4]). The effective length (L) is defined as the distance between the tips of the V-shape edges, and L of all short columns is 740 mm.…”

“…For the concrete core of CFST, the non-compacting could be recognized as a concrete imperfection. Han [3] and Han and Yao [4] carried out a series of tests to estimate the influence of concrete compaction on the strength of CFST and concluded that better compaction could result in higher ultimate strength of the CFST member.…”

Structural design of stainless steel concrete filled columns

“…Studies of carbon steel rectangular hollow section (RHS) composite columns have been performed by Uy [18][19][20], Han and Yao [21], Mursi and Uy [22], Lam and Williams [23], and Han [24]. Experimental results on the strength, local and post-local buckling behaviour were reported.…”

Experimental behaviour of recycled aggregate concrete filled steel tubular columns

“…The columns were tested as pin-ended supported (Han and Yao [10]). The desired eccentricity was achieved by accurately machining grooves 6 mm deep into the stiff end plate that was welded to the steel tubes.…”