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结合大跨度斜拉桥架梁施工要求，对架梁用１７０ｔ步履式架桥起重机设计方案要点、各机构特点以及实桥架梁情况做了概要介绍。
Based on the construction requirements of girders for long-span cable-stayed bridge, this paper gives a brief introduction of the main points of the design scheme of the 170t walking cradle crane, the characteristics of each agency and the actual situation of the girders of the bridge.