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通过对大榭第二大桥钢索塔结构特点及制作难点地分析,介绍了角壁板制作、钢混结合段制作、钢锚箱安装精度控制、塔段整体组装工艺、预拼装等重点工程的制作工艺方法。通过预拼装方法的优缺点对比,结合该桥钢塔标准节段长度方向刚度较大、水平放置自重对轴线产生的影响小,最终预拼装采用以多节段水平拼装为主。
Through the analysis of the structural characteristics of Daxie Second Bridge and the difficulty of making, the paper introduces the key wall construction, the production of steel mixing section, the installation accuracy control of steel anchor box, the integral assembly process of the tower section, pre-assembly and other key projects Production process methods. According to the comparison of the advantages and disadvantages of the pre-assembling method, considering the rigidity of the standard section of the steel tower in the length direction, the influence of the horizontal self-weight on the axis is small, and finally the pre-assembling is mainly based on multi-level assembly.