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一、概况新疆阿勒泰市的克兰河桥,是拆除老桥后新建的一座城市桥梁,由于城建挤占河道,桥下过水断面不足,加之两岸引道较低,故布孔选型时以不设中墩及采用建筑高度较小的桥型为好,结合城市桥梁需考虑景观等因素,经反复比较,选定单跨50米预应力混凝土系杆拱桥,该方案较之梁桥,有较大的跨越能力和较小的建筑高度,且造型与山城的环境相协调。根据桥址地形、水文及现有设备等条件,采用了
I. Overview Clare bridge in Altay, Xinjiang is a newly built urban bridge after the demolition of the old bridge. Due to urban construction crowding out of the river and lack of cross-section under the bridge, coupled with the low cross-strait approach, In the middle of the pier and the use of a smaller height of the bridge as well, combined with the city bridge to consider the landscape and other factors, after repeated comparison, selected single-span 50 m prestressed concrete tied arch bridge, the program than the beam bridge, there are more Large spanning capacity and smaller building height, and the shape and mountain environment to coordinate. According to the bridge topography, hydrology and existing equipment and other conditions, adopted