Analysis and Computation Method of Prestressed Concrete Bridge in Construction Control
Based on solving the problems of pre-camber of the prestressed concrete bridge in construction, the calculation principle of the bridge model constructed in each stage is studied, the relation between forward and backward analysis method is illustrated, and the influencing factors related to characteristics of pre-camber and each controlled point are analyzed. Considering the influencing factors such as the establishment of new elements, the stressing of reinforcement, the shrinkage and creep of concrete in construction, the calculation model is established in accordance with the characteristics of prestressed concrete bridge constructed in each stage. The deformation of each construction segment is calculated with the forward and backward analysis method respectively, so that the pre-camber of each cantilever construction segment is gotten,which is the basis of construction control.
Prestressed concrete bridge Construction monitoring Forward analysis method Backward analysis method Deflection
Sui Tan Zhiwu Yu Huashuai Zhang
Department of Civil Engineering, Central South University, China
国际会议
上海
英文
867-875
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）