大跨度钢结构临时桥梁应急施工方案

Emergency Construction Scheme of Temporary Bridge of Large Span Steel Structure

抢险应急桥梁安装一般存在场地条件较差、工期要求较紧、施工安全风险较大等特点,在规划布置时应充分考虑上述因素,必要时请行内专家进行咨询、指导,选用合理、可行的布置方案是关键。在桥梁安装过程中,按照设计及规范要求加强监测,缆风绳、斜拉扣绳等应及时安装到位,确保结构整体稳定。叶巴滩水电站“11810336A631”临时桥的成功实施,在大江大河防洪度汛,以及在应急恢复交通等方面具有一定的借鉴意义。

The emergency bridge installation generally has the characteristics of poor site conditions, tight construction period requirements and high construction safety risks, which shall be fully considered in layout planning. If necessary, professional experts shall be invited for consultation and guidance, and the selection of reasonable and feasible layout plan. During the process of bridge installation, the monitoring shall be strengthened according to the design and specification requirements and the hawser and cable-stayed buckle rope shall be installed in place in time to ensure the overall stability of the structure. The successful implementation of the "11·03" temporary bridge of Yebatan Hydropower Station can be used for reference in flood control and emergency traffic recovery.