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一、概述 屯溪路桥位于合肥市一环屯溪路,横跨南淝河,是一座下承式预应力系杆钢管混凝土拱桥。桥长71.64m,拱高18m,拱轴线为二次抛物线。桥面全宽43m,是目前国内最宽的此类拱桥。设计荷载机动车道汽-20、挂-100,非机动车道汽-10,人群荷载4.0KN/m~2。 下部结构为桩基础,东西岸各设13根钻孔灌注桩,桩径1.5m,桩长28m,桩端嵌入基岩4m,桩顶设钢筋混凝土盖梁。
I. Overview Tunxi Luqiao located in Tunxi Road, a loop in Hefei, Nananhe across the river, is a type of prestressed tie-rod concrete-filled steel tube arch bridge. Bridge length 71.64m, arch height 18m, Arch axis for the second parabola. Bridge width of 43m, is currently the widest such arch bridge. Design load motorway steam -20, hang -100, non-motor vehicle steam -10, population load 4.0KN / m ~ 2. The lower structure is a pile foundation. There are 13 bored piles on the east and west coasts respectively. The pile diameter is 1.5m and the pile length is 28m. The pile ends are embedded in the bedrock 4m. The top of the piles is provided with reinforced concrete capping beams.