中国首座双层斜拉—悬索协作体系大桥通车|少妇与拘做受xxxxⅹxx
中新网铜陵11月6日电 (刘鸿鹤 邢影 赵懿)中国首座双层斜拉—悬索协作体系大桥——铜陵长江三桥6日通车。

据介绍,铜陵长江三桥位于铜陵长江公路大桥上游720米处,线路全长11.9公里,北起陈瑶湖镇,跨越长江后经羊山矶,南止于大通镇。大桥公铁合建段长2.7公里,南北顺接既有G3京台高速公路,集高速公路、城际铁路、货运铁路于一体,并兼顾铁水联运功能。
在世界桥梁建造史上,大跨度跨江跨海大桥多采用斜拉桥或悬索桥,两者各有优劣:斜拉桥刚度强、承载重,但跨越能力有限;悬索桥跨越能力强,但刚度较弱。
中铁大桥局G3铜陵桥项目部副总工程师赵成贵解释说,铜陵长江三桥创新性地采用斜拉—悬索协作体系,实现了“刚柔并济”的技术突破。
这一创新设计既利用了悬索桥“一跨过江”的优点,将对通航的影响降至最低,又发挥了斜拉桥承重强的优势,将主塔建在岸边,以避开防洪堤坝。

“以前每天通勤要绕行老桥,高峰期经常堵车。现在新桥通了,不仅能节省半小时车程,还能在桥上欣赏江景,这对我们经常过江的人来说真是个大好消息。”当地市民李贵东说。
家住桥南的李女士表示:“特别期待这座桥给我们城市带来的变化。”
作为《长江干线过江通道布局规划(2020—2035年)》中规划的过江通道之一,铜陵长江三桥对完善区域“三横三纵”运输通道体系,构建贯通南北、联动东西的战略交通枢纽具有重要意义。(完)
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