简要介绍了长沙市营盘东路浏阳河大桥主桥类双层混凝土箱梁斜交竖曲线顶推施工中预制平台及附属结构的设计构思、结构形式、技术参数。尤其是对底模竖曲线处理、滑道标高确定方法以及预制平台内顶推支承墩、限位装置的结构进行了优化设计,取得了较好的效果,可为以后斜交竖曲线类双层混凝土箱梁顶推施工提供借鉴和参考。 The design concept, structure and technical parameters of the prefabricated platform and its ancillary structures are briefly introduced in the construction of jacking vertical curve of the main bridge of Liuyang River Bridge in Yingpan East Road, Changsha City. In particular, the bottom mold vertical curve processing, the determination of the slideway elevation method and the prefabricated platform thrust pillars, the structure of the limiting device has been optimized, and achieved good results, for later bias vertical curve double Concrete box girder jacking construction to provide reference and reference.