Research on key technology of construction monitoring of long-span curved bridge with high piers

For construction monitoring of long-span curved bridge with high piers, a construction monitoring system based on modern control theory is proposed, take "construction-measuring-recognition-fix-warning-construction" cycle control as the core, construction process was overall controlled. The WuJiaWan Bay Bridge is taken as an example, the finite element model of the full-scale bridge is established by using Midas/civil 2013, the construction process is simulated by calculation. The theoretical values and measured values of alignment, stress and other indicators was made comparative analysis. The result show that this method can effectively control the construction quality, alignment and stress of bridge can meet the design requirement, and bridge can closure smoothly.