The practical building structure subjected to combined loading and fire is successive process from normal service to subjection to fire and strengthening

which includes the full-range loading with ambient temperature

heating

cooling and post-fire phases

and the full-range fire with heating and cooling.Based on the whole process loading and fire

a finite element analysis（FEA）model for steel reinforced concrete column（SRCC）under the full-range fire were established and validated by the corresponding tests.After that

based on the verified FEA model

the temperature distributions

the axial deformations and the internal force redistribution were analyzed.This is helpful to investigate the residual load bearing capacities of the SRC columns.The results show that without the combined loading and fire including heating and cooling phases

the post-fire residual load bearing capacities of the SRC columns and the corresponding peak displacement are non-conservative

and the internal forces redistribute in the section occurs under the full-range loading and fire.