Steel tubular column structure is one of the best structure to construct highrise condominium building. It had been difficult, however, to fill concrete into high steel tubular without non-filled zone because of segregation of concrete in the middle of filling. So the authors will try to apply super workable concrete, which have superior deformability and segregation resistance, to this case. According to results of experimental studies, it is possible to fill super workable concrete into abut height 40 m's steel tubular column by ordinary mobile concrete pump, and to calculate pumping pressure cosidered hydraulic pressure. Furthermore, the result of actual steel tubular columns construction, height ; 39.4 m, at MM 21 LANDMARK TOWER was satisficble.
