Taking the maintenance and reinforcement engineering of the Zhujiahe Bridge in Wuhan as the back-ground,the construction monitoring process and content of the maintenance and reinforcement project of the large-span prestressed concrete T-frame truss beam bridge were introduced.A linear monitoring and stress monitoring scheme for the bridge structure was designed based on the stress characteristics and maintenance and reinforcement plan of the T-shaped rigid frame bridge.In order to ensure the safety of the entire process of dismantling the old hanging hole beam and installing the new hanging hole beam,an automatic collection system was used to monitor the bridge control sec-tion stress changes during the construction of in real time.A construction monitoring model of the bridge was estab-lished,and the theoretical values of internal force and deflection deformation of the T-shaped truss beam control sec-tions were calculated and analyzed.The results were compared with the monitoring measured values to ensure the smooth progress and high-quality completion of bridge maintenance and reinforcement engineering.
关键词
T构桁架梁桥/施工监控/自动采集系统/维修加固工程
Key words
T-shaped truss girder bridge/construction monitoring and control/automatic collection system/maintenance and reinforcement engineering
维普
万方数据