This paper introduces the design and construction method of main bridge of the North bridge, which is a half through concrete filled steel tubular truss arch structure.

主要介绍了北门桥主桥中承式钢管混凝土提篮拱结构设计以及主要施工方法。

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Then identify a typical half-through CFST arch bridge accordingly as a benchmark bridge, dynamic characteristic were illustrated by MIDAS FEA.

根据统计得到的典型桥例为基准，采用MIDAS有限元软件分析桥例的结构动力特性；

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Then identify a typical half-through CFST arch bridge accordingly as a benchmark bridge, dynamic characteristic were illustrated by MIDAS FEA.

根据统计得到的典型桥例为基准，采用MIDAS有限元软件分析桥例的结构动力特性；

youdao