The thesis expounds the popular combined arch bridge developed in recent years, and the typies are classified.

The effect to the dynamic charecteristics of long-span trussed combination arch bridge by damage of the structure;

A three-dimension finite element model of Qingshui Bridge has been built for investigating the damage reason of trussed combination arch bridge.

8 in "The Design Standard of Highway Masonry and Concrete Bridge" is adopted in calculating the effect caused by temperature changing or concrete shrink and creep of trussed combination arch bridge.

Rational internal force of hangers under different construction stage can be obtained through optimization analysis of the object under the finished bridge condition of the camber composite bridge.

The analysis method of this paper can be referenced for other composite arch bridge.

A pedestrian bridge in a residence quarter in Huzhou is designed to be a composite arch bridge, with 2 bearing arches and 1 tension arch, asymmetrical as a whole.

The main shipping channel bridge and the non-navigable span approach bridges of the Bridge respectively make use of the long span continuous composite arch bridges and continuous composite box girder bridges that are all erected by the multi-point and synchro incremental launching construction technique.

)Longxi bridge is taken as the case study,the lateral distributional characteristic of a prestressed concrete continuous girder and arch combination bridge and variation along longitudinal direction are analyzed by using spatial finite element method,and the analysis results are compared with those of traditional calculation method for simplified elastically supported continuous gi.