Research Of Key Points In Construction Control Of Double Inclined Pylon Partial Cable-stayed Bridge Without Back-stays

Double inclined pylon partial cable-stayed bridge without back-stays with part of thepartial cable-stayed bridge and cable-stayed bridge without back-stays the characteristic ofstructure, its mechanical performance closer to partial cable-stayed bridge, it’s structuredesign and construction methods have certain innovation. The setting of inclined pylon hasbeen getting more and more applications because of its particularly exquisite shape andoutstanding. So it is very valuable to research the problem in construction contral for theconstruction of the congener bridge.1. Though the structure characteristic of double inclined pylon partial cable-stayedbridge without back-stays, this thesis do some research of the characteristics of constructionto know the construction mode of the double inclined pylon partial cable-stayed bridgewithout back-stays. Determining the double tower without dorsal cable of cable-stayedbridge construction control method, according to the construction method and constructioncontrol theory of cable-stayed bridge.2. This thesis takes the method of optimize the double inclined pylon partialcable-stayed bridge without back-stays by influence matrix. On the basis of constructionprocess of double inclined pylon partial cable-stayed bridge without back-stays, analyzingthe problems of alignment control. The result shows that the method of optimization forcable can solve the problem of alignment control.3. The inclined pylon of the double inclined pylon partial cable-stayed bridge withoutback-stays is analyzed by finite element simulation. Analysis of the inclined pylon due tostructural stress changes the ultra caused by pouring, and ultimately come to solvestress.