With the finite element software, the influence on the structure is calculated of metro excavation under large span obliquely intersected framed underpass bridge constructed with jacking method.
借助大型有限元分析软件，对大跨度斜交顶进框架式地道桥底板下开挖地铁对地道桥结构的影响进行较深入的探讨。
The average risk of structure in construction period is far higher than one in use period. To make the risk analysis study is very necessary in the construction of large-span cable-stayed bridge.
结构在施工期的平均风险远远高于使用期，开展大跨度斜拉桥施工期间的风险分析研究是十分必要的。
The cable is the important component of suspension bridge. Determination of initial states of cable of large span suspension bridge is the key part of the upper structure construction.
主缆是悬索桥的重要受力构件，精确计算其空缆线形是悬索桥上部结构施工成败的关键。
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