This type of structure makes the main beam have three closures, which is first used in China, Whose closure technique is described in detail and other erection problems are also discussed.
这种结构形式使主梁安装具有三次合拢的特点，是国内首次采用．详细地介绍其合拢技术，同时也对其他安装问题进行了说明和讨论。
During construction, key problems including automatic cutting of through line, construction quality management, as well as erection of large-span truss were solved.
施工中解决了相贯线的自动切割和施工质量管理及大跨度桁架的安装等关键问题。
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