王港东河特大桥大跨预应力连续梁浇筑施工控制研究OA

The design and construction of prestressed continuous girders are closely interrelated.Factors such as construction methods,formwork elevation,and prestressing operations directly determine the final bridge geometry and internal force distribution.In practical construction,deviations from design assumptions often occur.In this study,construction control and monitoring were carried out,and a simulation analysis model was established using Midas/Civil finite element software.Key stages of the construction process were emphasized,and construction procedures and control parameters were adjusted in real time based on full-cycle monitoring data of the continuous girder construction,so as to avoid the accumulation of construction errors.By comparing theoretical calcula tion results with measured data,it was verified that deflection,elevation,and stress all meet the requirements specified in the design docu ments,ensuring the final bridge alignment and structural safety.This study provides reference and guidance for construction control of con tinuous girder bridges.