Compared to the ordinary concrete,the bi-steel concrete has the advantages of faster construction speed,lower steel consumption,larger stiffness and better limit on crack development,which deserves vigorous popularization. Besides,due to the existence of short lateral bars,the anchorage performance between the bi-steel and concrete is far better than that of ordinary concrete. This article introduces the mechanism of the bi-steel concrete briefly and reviews an amount of researches on bisteel concrete membe...