Analysis on Design Parameter of Double-limb Pier of No-support Continuous Rigid-frame Bridge
The no-support continuous rigid-frame bridge is a relatively novel form of bridge structure.Taking the double-limb thin-wall pier no-support continuous rigid-frame bridge in a urban rail transit project as an example,a finite element model is established to analyze the design parameters of the double-limb pier.The results indicate that the main calculation indicators of the girder and pile foundation are not sensitive to changes in the design parameters of the double-limb pier.The composite stiffness is highly sensitive to changes in the design parameters of the double-limb pier.An increase in pier height is beneficial for the main calculation indicators of bridge piers.The increase in wall thickness shows a trend of first favorable and then unfavorable for the main calculation indicators of bridge piers,which indicates the existence of an optimal wall thickness.The research results provide reference for the design of similar bridges.
万方数据
维普
