Design of New System of Suspending and Connecting for a CFST Arch Bridge with an Unusual Big Span Du Guanming\ Zhao HuiThe design of a new system of suspending and connecting for a CFST arch bridge with a 280 m span is introduced in this paper.The 3 D modles and computational principlas of suspending connecting system are presented, and at same time the safty of the whole system on suspending and connecting is analyised in detail.CFST;\ arch bridge;\ suspending;\ connecting