Research Of Cantilever Construction Technology On Long-span Continuous Girder B Ridge

Cantilever laying method is mainly applied to the construction of PC continuous beam bridges, which requires many temporary structures. Based on the QiuShui River PC continuous beam bridge, this article designed the bracket of 0# block, pier-beam temporary anchorage, traveler and the bracket of said span which used to the construction of this bridge. Besides the pier-beam temporary anchorage, the software of MIDAS /CIVIL is used to calculate and analysis, after repeated correction, the final design was determined. The temporary structures of designed in strength, stiffness and stability have reached the requirements of related specifications, and the strength of structures is fully used, which meet the principal of design that security, economic and convenient to build and demolition. Through analysis the monitoring data in the bridge rotating construction, discussion technical points in linear control of a continuous beam Through the study on continuous beam bridge cantilever construction techniques the Q iuShui River bridge linear close accuracy to meet the regulatory requirements.