Control Method of Stress-Free Status for Erection of Cable-Stayed Bridges

In the light of the structural features of cable\|stayed bridges and major problems commonly encountered in the erection stage of the bridges, the stressfree status amounts of structural element are used as principal path to automatically approximate the target values of the completed bridges, and to realize synchronous operations of multifarious construction procedures during the erection. The model tests and construction of several longspan cable stayed bridges prove that the method presented herewith is pretty effective and reliable.