锦州市云飞大桥主桥设计

发布时间：2018-11-19 18:25

【摘要】：锦州市云飞大桥主桥为双索面双套拱独塔斜拉桥,跨径布置为(108+92)m,采用连续梁—斜拉桥协作体系,塔梁分离。主梁采用双边钢箱主梁结构,梁高2.8m,桥面标准宽度30m,设双向2%横坡。桥塔采用双钢箱套拱结构,外拱塔高65.5m,倾角8°,塔根间距38.0m;内拱塔高54.2m,倾角15°,塔根间距25.0m;内、外拱塔间布置25根受拉的连杆和2根压杆,分别采用平行钢丝成品斜拉索和钢箱结构;塔根采用鐖100mm的锚栓将塔柱锚固于承台顶面,并采用螺纹粗钢筋施加预应力。全桥共设20对塔梁间斜拉索,采用高强镀锌平行钢丝索。拱塔塔基为4个分离式的群桩基础,桩基直径1.5m。设计采用卧式组拼、整体竖转的桥塔施工方案,并提出利用内拱塔起扳外拱塔的施工工法。
[Abstract]:The main bridge of Yunfei Bridge in Jinzhou is a cable-stayed bridge with double cable-plane and double-set arch with single tower. The span arrangement is (108,92) m. The continuous beam-cable-stayed bridge cooperation system is adopted and the tower and beam are separated. The main beam adopts the two-sided steel box main beam structure, the beam height is 2.8 m, the bridge deck standard width is 30 m, and the two-way 2% transverse slope is set up. The bridge tower adopts double steel box arch structure, the outer arch tower is 65.5 m high, the inclination angle is 8 掳, the tower root spacing is 38.0 m, the inner arch tower height is 54.2 m, the inclination angle is 15 掳, the tower root spacing is 25.0 m; In the inner and outer arch tower, 25 tension connecting rods and 2 compression rods are arranged, respectively, with parallel steel wire finished cable and steel box structure, and the tower root is anchored to the top of the cap with 100mm anchor bolt, and the thread thick steel bar is used to apply prestress. There are 20 pairs of cable-stayed cables between towers and girders, and high strength galvanized parallel wire cables are used in the whole bridge. The arch tower foundation is composed of four separate pile groups with a diameter of 1.5 m. The construction scheme of the bridge tower with horizontal assembly and integral vertical rotation is adopted, and the construction method of using the inner arch tower to pull the external arch tower is put forward.
【作者单位】：同济大学建筑设计研究院(集团)有限公司;
【分类号】：U448.27

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