Research On Key Technologies Of Receives Folds The Type Migration Impractical Platform Construction

The Chongqing Yudong Yangzi river Bridge connects the Chongqing big ferry spot area and the Banan area, the bridge span 1541.6 meters.Its north approach span is located north shore Yangtze River the big ferry spot area, north the approach span the superstructure is 6 40 (first association) +6 40 (second association) m prestressed concrete continual box Liang, the span is 480m, is located R=600m in the circular curve and the transition curve.Through to aspect and so on construction feasibility, reliability, construction investment as well as time limit for a project generalized analysis comparisons, uses motion impractical platform home position system Liang to Liang, the whole construction job practice.This article namely take the fish hole Wuhan Bridge as the project background, has emphatically discussed this bridge prestressed concrete continual box Liang the approach span GL-50/40 migration impractical platform construction.In order to study in the construction process to move the impractical platform stress and the distortion condition, guaranteed the bridge construction security and the construction quality, this article has done following several aspect work:â‘ Introduced moves the pould frame, moves the support as well as the motion impractical platform construction technology characteristic as well as in the project application, north the union fish hole Wuhan Bridge the approach span construction need, uses the GL-50/40 migration impractical platform to take the superstructure construction equipment.â‘¡Calculates the tool take finite element procedure MIDAS, has carried on the theoretical analysis and the computation to the GL-50/40 migration impractical platform main structure, finally indicated, this motion pould frame has the enough design load factor.â‘¢Piles through the scene carries the precompression experiment, to the GL-50/40 migration impractical platform each control section amount of deflection, the stress has carried on the test, obtained moved the platform stress and the distortion along with the load process change rule, and through to the empirical datum and the theory predicted value comparison, further confirmed the GL-50/40 migration impractical platform securityâ‘£Introduced in detail the GL-50/40 migration impractical platform applied north the fish hole Wuhan Bridge the approach span construction key technologies.