To study the eccentric compression mechanical properties of circular concrete-filled stainless steel tube concrete(CFSST)short columns,this paper conducted eccentric compression experiments on 12 circular CFSST short columns,analyzing the effects of steel content and eccentricity on the compressive failure process,failure mode,load displacement curve,load strain curve,lateral deflection distribution curve along the column height,and ultimate bearing capacity of the components.The results indicate that the ultimate bearing capacity of circular CFSST short columns gradually increases with the increase of steel content and gradually decreases with the increase of eccentricity.Comparing the bearing capacity calculation of some domestic and foreign standards and regulations,and comparing the calculated values with the experimental values,it was found that some regulations have a significant deviation in predicting the eccentric compressive bearing capacity of circular CFFST short columns,while JCJ 01-1989 Design and Construction Regulations for Steel Tube Concrete Structures calculation results are closest to the experimental results.It is recommended to use this code to predict the eccentric compressive bearing capacity of circular CFFST short columns.
维普
万方数据