The method of Analytic Hierarchy Process is used to identify the risk events of flood. The probability of flood is determined by construction period and flood control standard.
洪水风险事件识别采用层次分析法进行，并结合施工工期和防洪标准来确定洪水发生的概率。
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 invention has the beneficial effects of low construction risk, high efficiency, short construction period, high installation accuracy and low installation cost.
本发明的有益效果是：施工危险低、效率高、工期短、安装精度高、安装成本低。
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