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本文通过实例介绍了钢-砼组合曲线梁桥的新型施工方法,即无支架施工法,及其适用性和优势。同时,在实例分析的基础上提出了无支架施工的钢砼组合曲线梁桥的设计和施工要点及相应解决方案,即通过修改截面形式增大截面抗扭刚度、吊装前张拉顶板预应力钢束等方法解决悬臂搭接处变形控制和吊装钢梁时施工控制。供类似工程设计参考和借鉴。
In this paper, a new type of construction method of steel-concrete composite curved beam bridge is introduced by way of example, that is, the method of unsupported construction and its applicability and advantages. At the same time, on the basis of the example analysis, the design and construction essentials and corresponding solutions of the steel-concrete composite curved beam bridge without support are put forward. That is, the torsional rigidity of the section is enlarged by modifying the cross-section, Beam and other methods to solve the cantilever overlap deformation control and hoisting steel girder construction control. For similar engineering design reference and reference.