Safety Assessment of the Antisliding between the Main Cable and Middle Saddle of a Three-Pylon Suspension Bridge Considering Traffic Load Modeling

The antisliding safety of the middle saddle is a key issue for the design of three-pylon suspension bridges. Vehicle load is the main adverse effect, especially unsymmetrical vehicle load. A general mechanical model on the saddle sliding behavior is reviewed and proposed, and then characteristics of load responses of the main cable are investigated to explore a simplified live load computational method. Based on the deterministic approach from...