Fengji Meixi River Bridge Design And Construction

Researches on suitable bridge structure and shape with great span for mountainous area is carried out in this paper, aimed at the practical engineering project of Fengjie Meixi River Bridge. After choosing the steel-tube-concrete arch bridge shapes, the suitable construction and shape for this up-beared arch bridge is worked out after comparison with many plans. As Fengjie Meixi River Bridge is a part of Sanxia Emigration Project and the fund of the emigration is short, a great deal of computation and analysis is carried out to choose the most suitable section dimension, the factor of arch axis, the form of erect pillar and the shape of steel tube for the bridge with respect to high economics and safety. The validation of the structure design is proved by special stability analysis.According to the situation and local condition of the of project, with respect to the shape of bridge approach and bridge estrade, "inclined and haul and buckle and hitch" construction plan is advanced for the main step.The engineering fund is reduced greatly by the reasonable use of to make use of bridge approach structure as the balance system of buckle anchor for engineering base bridge. A lot of building difficulty to great span of the arch bridge is solved by use of the building-control-aim and datagained by computation.Through involving in project design and engineering process, experience of structure design and engineering of Fengjie Meixi River is deduced, which offers reference for great span arch bridge structure design and engineering.The completion building of this bridge brings great economical benefit and social benefit to emigration of Fengjie county in Chongqing and the bridge is also a beautiful scene in this area.This bridge is the most great span steel-tube-concrete arch bridge in China , and its completion will promote the of China bridge construction.