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In recent years , the continuous concrete box girder bridge in the country has been widely used, attractive appearance, safe and reliable. At the same time span increasing , the construction process becomes more and more complex . Thus , the importance of the construction monitoring is even more prominent, and the need for structural simulation analysis , construction monitoring , collate and effective organization and management . The Construction Monitoring guaranteed basic bridge into a bridge linear force state to meet the design requirements , to ensure the quality and safety of the bridge , has an important role in modern bridge construction . Summarized at home and abroad , large span continuous box girder bridge the Ministry on the basis of structural control technology and its development trends , combined with Wu Jing speed Han North River Bridge construction monitoring instance , the factors to be important to consider in the construction , as there is for area of ??research and analysis . 1) the Midas / Covill and bridges Dr. software for structural analysis and comparison site based on high-strength concrete modulus of elasticity , shrinkage and creep simulation analysis model construction calculate the stress , strain the simulation results to guide on-site construction ; 2) the establishment of on-site construction monitoring system , to carry out the structural stress ( strain ) , the deflection and temperature monitoring , analysis of the key factors of the construction monitoring , the corresponding control measures , control section stress monitoring results ; 3 ) box girder bridge monitoring key parameters ; 4 ) explore the Wu Jing high-speed Han North River No. 2 bridge in the monitoring and management system , comparing theoretical analysis with the measured data gaps , a comprehensive analysis of the reasons , and provide a basis for future monitoring work .
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