Research of mechanics function for concrete-filled circular steel tube short columns under centre loading

On the basis of the experimental study on the two CFST short columns under centre loading,the failure phenomenon and mechanism analysis are conducted.Mainly inquiried into factors such as the concrete grade and the reinforcing bar grade etc.To the influence regulation of this structure's mechanics function,point out the steel strength is a main factor that affects the mechanics of the structure,and the available suggestion is given about the application of the structure.