Bearing Capacity of Concrete-filled Steel Tube Arch Bridge Summary of Factors

Qinghui DI, Jian ZHANG

Institute of Civil Engineering, Chongqing Jiaotong University, Chongqing, 400070, China

Abstract: Many factors affect the bearing capacity of steel concrete arch bridge, rib void, the initial stress of steel, concrete Poisson's ratio, the lower rib torsion and other factors. By analyzing the principle and mechan- ism of these factors, and then puts forward the reasonable precautions, and summarizes the progress of the current research of concrete pipe Arch Bridge, as to provides a theoretical basis for the design and construc- tion of the bridge.

Keywords: Concrete-filled steel tube; Baring capacity;Void; Initial stress