Xiatangkou Wujiang River Bridge Prestressed Concrete Continuous Rigid Frame Construction Optimization

This paper summarized in the collection at home and abroad prestressed concrete continuous rigid frame construction development on the basis of the status quo, under Xiatangkou Wujiang River Bridge Prestressed Concrete Construction continuous rigid frame optimization program has been optimized design, using the original design of tower crane linked with self-anchored Triangle Construction optimization basket hanging with the diamond-shaped Basket Cable Construction.This paper introduces the Cradle cable hoists and rhombus design and calculation and prestressed concrete continuous rigid frame construction technology of key parts. These rhombus Basket described in detail design, in accordance with the principles of structural design allows stress method, Cradle of the diamond after the end of Die Bolt, after beam, the beam, the former beams, the former boom, the former beams, the main truss Cradle points and diamond bar boom for Analysis, drawn diagram of the corresponding force, the establishment of the typical equation and calculation method, in accordance with calculation results rhombus design Cradle main bar type and size.After optimization of the design of the program has been adopted, savings expected to seven months, funds more than 230 million, has produced good social and economic benefits, and I Similar units in the future bridge construction and accumulated experience.