Mechanical Analysis on Continuous Composite Arch Bridge Structures

Continuous composite arch bridge as a new structure is composed of different type of structures such as continuous beam bridge,arch bridge and composite structure etc.The mechanical behavior of continuous composite arch bridge likes that of both continuous beam bridge and arch bridge,but they are not same completely.To know the mechanical behavior of this type of bridge,combined the constructing main bridge of Jiubao bridge,a 3-span continuous composite arch bridge,finite element method was used to calculate the mechanical behavior of this bridge burdened different loadings and mechanical characteristics of main components in this bridge were analyzed.The calculation results show that multi-span continuous composite arch bridge mainly behaves like a arch bridge and the continuous beam action is weak.