concrete member
3.It introduces basic mode of cross section of inherent stress concrete member bar,discusses rigidity and strength of different inherent stress, and illustrates basic design principle of cross section of inherent stress concrete member bar,which to extend application of inherent stress concrete structure.
6.Abstract: Based on the test of 10 reinforcement concrete columns subjected to monotonic load,axial and biaxial reversed cyclic load , the failure shape ,bearing capacity and recovery-force behavior of reinforced concrete member is analysed, which supporting reliable test data to determine monotomic loadline ,the parameters of axial and biaxial damage model and biaxial unelastic hysteretic model.
7.Based on the linear creep superposition principle, admiting average loading age coefficient and average time-lasting coefficient, adopting creep and shrinkage calcultion in ACI code, a simplified method of creep and shrinkage analysis in reinforced concrete member bearing multi-times axial forces is presented.

