Analysis about stress of the main Girder of the Extradosed cable-stayed bridge in the construction process

The extradosed cable-stayed bridge is a new bridge structure form between beam bridge and cable-stayed bridge on its characteristic under force,which is also called as partial cable—stayed bridge.If it is said that the beam bridge belongs to rigid bridge type and the cable—stayed bridge is flexible one,while the extradosed cable-stayed bridge presents structural characteristic both of them.As a result of superior structural property and well economic index of itself,the extradosed cable-stayed bridge displays more and more enormous development potentiality.In order to study the characteristic under force of the extradosed cable-stayed bridge further.This paper based on consrtuction monitoring of the extradosed cable-stayed bridge on Qiupu river after a long time,and received some conclusion after analysis of date.Similar to the future construction of the bridge Can be provided from it.