芝兰桥现浇箱梁支架预压施工技术研究

本对大跨混凝土连续桥梁施工中采用的支架施工法进行了讨论；提出了一种利用预应力反拉和堆载相结合的支架预压方法，并结合宁波芝兰桥工程0#块施工中大型支架的设计和施工对该法的可行性进行了简要力学分析；结果表明，该法受力性能合理，施工便捷，具有一定的推广及参考价值。

Pre-stress Construction of Truss of Cast-in-place Box Beam Zhilan Bridge

This paper discusses the truss construction method in the building of long-span concrete bridge, puts forward the truss pre-stress method combining the pull force and the stacking load. With the design and the construction of NO.0# large-scale truss in the building of Ningbo Zhilan Bridge as a case in point, it makes a simple mechanical analysis of its feasibility and the result indicates that this method not only features rational stressing property and convenient construction, but also has some value for popularization and reference.