Design of Self-anchored Deck Arch of San-Shan Bridge

The San-Shan Bridge in Nanjing City is an important bridge over the Qin-Huai River.The Bridge is a self-anchored deck arch bridge which span arrangement is 22.5+40+22.5m.The superstructure and the bridge substructure of this bridge were analyzed in this paper in details.The self-anchored deck arch bridge is in harmony with the environments outside.And the linear programming method used in prestressed tendon designing in the bridge for self-anchoring effect was effective.The limit states of bearing and serviceability were guaranteed and the horizontal force in the foot of the arch was balanced?too by the measure.In the benefit of linear programming method the adaptability and affordability in arch bridge construction in soft foundation were improved.