As a new low-carbon material, development of preplaced aggregate concrete (PAC) will \nachieve huge economic and social benefits. However, few existing research is focused on applying \nPAC in structural elements. This paper is attempt to apply PAC in concrete filled steel tube (CFST) \nstub columns and the bearing behaviors of PAC filled steel tube (PACFST) stub columns under \naxial compression are also experimentally investigated. The results indicate that the failure modes \nof PACFST stub columns are all drum like failure mode which are analogous to that of CFST stub \ncolumns. ........................................
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