蕴藻浜大桥下承式斜靠钢箱拱肋施工技术

Construction Techniques for the Arch Ribs of the Through Leaning-Type Arch of the Yunzaobang Bridge

大型桥梁在城市内河重要航道上的施工,首先要满足安全通航的常态要求。在蕴藻浜大桥的施工中,通过方案优化设计,采取先梁后拱和先拱后梁相结合的施工方法,在满足通航要求的前提下,最大程度的减少了深水工作量,缩短了水上施工周期,整个过程安全、可靠、精确,同时有效地降低了施工成本。

Building large bridges over the important inland navigation channels of a city has to,above all,meet the primary needs of the safe passage of ships.In the course of the construction of the Yunzaobang Bridge,through the optimization of the design,by means of the combination of the construction methods of ＂ building the beam first and then the arch＂ and ＂ building the arch first and then the beam＂,and in the premise of meeting the requirements of the normal navigation,the deep-water workload is reduced to the greatest extent,with the work time in water shortened.The whole construction process is accomplished safely,reliably and accurately,with the cost of construction effectively reduced.