Design and Construction Control of a Self-Anchored Suspension Overpass with a Single Arch Shape Tower and Spatial Cables

The Tongbai Parking Area Overpass is a 4-span self-anchored suspension bridge with a single tower and with span arrangement(18+38+66+18) m.The tower of the bridge is the reinforced concrete(RC) arch shape tower and the stiffening girder is the RC ribbed slab structure.The main cables are made up of prefabricated parallel wire strands,the suspenders are arranged in a spatial way and the cable saddl…