launching girder

基本解释

The structure of high web is often adopted in the overhead launching gantrys main girder that are connected by the high-strength bolts.
造桥机主梁一般采用高腹板箱梁结构，主梁之间通过高强螺栓群相互连接。
The length, rigidity and weight of a launching nose have significant influences on the internal forces of incrementally-launched main girder at construction stage.
导梁的长度、刚度及重量在顶推施工阶段对顶推主梁的内力有着重要的影响，其合理配置是全桥顺利顶推的关键。
In this paper, some key problems of applying incremental launching in cable-stayed bridge with steel box girder are studied and discussed, for the design and construction of bridges alike.
而钢箱梁顶推施工近期应用日益广泛，但是理论研究却滞后于工程设计实际，因此，本文选择钢箱梁斜拉桥顶推施工的关键问题进行分析，为同类桥梁的设计和施工提供参考。