Experimental and numerical investigations of the compressive behavior of concrete filled steel tubes (CFSTs)

Experimental behaviour of circular concrete filled steel tube columns and design specifications

“…High rise buildings [1,2], deep underground tunnels [3], bridges [4,5] and towers [6] are some examples of structures in which CFST columns are deployed as main load carrying members. High energy absorption capacity, stiffness and ductility of CFST columns motivate engineers to adopt such members in earthquake prone zones [6,7].…”

“…Strength of stub CFST columns has attracted the attention of many researchers [1,2,9,[12][13][14]. Considering the practical applications, the behaviour of long CFST columns was also investigated in past [10,[15][16][17].…”

Behavior of steel fiber reinforced concrete-filled steel tube columns under axial compression

“…In order to evaluate the accuracy of the proposed formulas, the experimental results of fifty-seven PCFST specimens reported in [41][42][43][44][45][46] are selected to compare with the predicted results according to Eq. (18), EC4 [47] and AISC 360-10 [48].…”

“…Comparisons between experiments in Refs [41][42][43][44][45][46]. and predictions of the proposed formula, EC4 and AISC 360-10.…”

Performance of Concrete Filled Steel Tube (CFST) Section: A Review

“…The inner concrete core of CFST section also plays an important part in delaying the inward buckling of steel tube and improves the behavior of CFST section [4,5]. Steel tube in CFST also provides good confinement to the inner concrete core, which increases the compressive strength of the CFST section [6]. Thus, CFST sections are advantageous where the columns are subjected to large compressive forces.…”