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预应力大跨径连续刚构特大桥主梁各施工阶段的变形值及预拱度虽然可以求出,但如在施工过程中不加以控制及调整,主梁标高将显著的偏离设计目标,造成合拢困难,并影响成桥的内力及线形。建立相应的数学模型、目标函数及物理模型,用以监测和控制施工过程,能够保证
Although the deformation value and the pre-camber of the main girders of prestressed long-span continuous rigid frame mega-bridges can be calculated, if the construction process is not controlled and adjusted, the elevation of main girder will deviate significantly from the designed target, resulting in Closure difficulties, and affect the bridge into the internal forces and linear. Establish the corresponding mathematical model, the objective function and the physical model, to monitor and control the construction process, to ensure