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清江隔河岩渡槽采用跨径为 (4 9.9+10 0 .0 +4 9.9) m三孔一联预应力砼连续刚构箱梁作承重载体 ,其箱梁砼浇筑设计采用巨型超重量级挂蓝悬浇。结合工程实例 ,介绍了连续刚构箱梁利用挂蓝悬浇施工的总体方案设计及优化、挂蓝施工程序及应用研究等内容 ;实践表明 :该方案优化与应用均较成功 ,值得同类工程施工之借鉴与参考
Qinghe Geheyan Aqueduct adopts a three-hole-one prestressed concrete continuous rigid-frame box girder with a span of (49.9 + 10 0 .0 + 49.9) m as the load-bearing carrier. The box girder concrete pouring design adopts a large-scale super heavyweight grade Blue hanging pouring. Combined with the engineering examples, the overall design and optimization of continuous rigid frame box girder construction with suspended blue cantilever are introduced. The construction procedures and application research of hanging blue are introduced. Practice shows that the optimization and application of the scheme are more successful and worthy of similar construction Reference and Reference