The apply of computer simulation on analysis of construction stability and monitoring of bridge with high piers

Base on actual project and consider geometric nonlinearity and material nonlinearity of structure, the numeric model of long-span continuous rigid frame bridge with high piers is built by using the current FEM software ANSYS. On the basis of the study of sensors optimization placement for bridge, real-time monitoring to different construction stages and work environment of long-span continuous rigid frame bridge with high-pie is taken, then feedback the actual measurement data to theoretical calculation and numeric model correction, furthermore build the more accurate model of long-span continuous rigid frame bridge. Rely on the numerical model and take dead load, construction load, wind load, temperature effect and so on into account, stability of the long-span continuous rigid frame bridge with high-pier's different construction stages is analyzed, the results show that the high pier is safe during the stage of construction.