Based on the project of Xinghai Bay Pedestrian Overpass,the calculation method of configuration of main cable of inclined hanger self-anchored cable suspension bridge was studied,and the mechanical performance of steel truss inclined tower was analyzed.

Finite element analysis on structure of suspension bridge with APDL;

Scheme optimization for a flexible suspension bridge s maintenance;

The effect of vector-span ratio of main cable on economic and technical index of long span suspension bridges;

Stability parameter pnalysis of wind resistance and wind tunnel test for long-span self-anchored suspension bridges;

Flutter stability analysis of suspension bridges by precise time-integration method;

Analytical solution of installing curve of suspended bridge s main cable;

In combination with the fuzzy theory with the neural network,a fuzzy-neural network for safety assessment of the long-span suspended bridges is set up.

According to the actuality of fast development of road cosntruction industry,it discusses the developing trends of road bridge from board bridge,pile bridge,steel reinforcing concrete arch bridge,slanting bridge and suspended bridge,so as to promote the development of road bridge in China,and can be reference for bridge designers in China.