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滹沱河特大桥主桥总体设计
作者:
作者单位:

(1.同济大学建筑设计研究院(集团)有限公司, 上海 200092; 2.中交第一公路勘察设计研究院有限公司,陕西 西安 710075)

作者简介:

Zineng Chen, Senior Engineer. Working at Tongji Architectural Design (Group) Co., Ltd. Research direction: Bridge engineering design research.

通讯作者:

Zineng Chen

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Overall Design of the Main Bridge of Hutuo River Extra Large Bridge
Author:
Affiliation:

(1.Tongji Architectural Design (Group) Co., Ltd., Shanghai 200092, China; 2.CCCC First Highway Consultants Co. Ltd Xi'an 710075, Shaanxi Province, China)

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    摘要:

    滹沱河特大桥主桥造型取意“山水画卷”,创造性地采用“卷轴造型”塔柱与空间扭索面相结合的独塔独柱斜拉桥。桥梁跨径布置为(40+150+150+40)m,采用全飘浮体系。结构支承体系为竖向减隔震支座+纵、横向阻尼器+横向抗风支座。桥塔结构部分由底部的椭圆形断面过渡到顶部的圆形断面,装饰卷边从塔底至塔顶逆时针旋转约90°。桥面以上桥塔采用钢结构,桥面以下采用混凝土结构,在桥面附近设置钢-混过渡段。主梁采用双幅钢箱梁+横梁的结构形式。斜拉索采用1860MPa级钢绞线拉索,拉索梁上锚点间距为9.0m。与传统拉索扇形布置不同,本桥反拉,最外侧拉索在塔上的锚点最低。桥塔、辅助墩和边墩的基础均采用钻孔灌注桩。

    Abstract:

    The main bridge of the Hutuo River Bridge, a single-tower, single-pylon cable-stayed bridge, is inspired by "landscape painting", featuring a unique "scroll-shaped" tower with a spatially twisted cable arrangement. The bridge has a span arrangement of (40 + 150 + 150 + 40) meters and utilizes a fully floating system. The structural support system incorporates vertical seismic isolation bearings, longitudinal and transverse dampers, and transverse wind-resistant bearings. The tower’s cross-section transitions from oval at the base to circular at the top, with decorative scroll edges rotating counterclockwise at approximately 90° from the base to the top. The tower above the deck is steel, while the part below the deck is concrete, with a steel–concrete transition section near the deck level. The main girder uses a double-box steel structure with transverse beams. The stay cables are made of 1860 MPa-grade steel strands, with an anchorage spacing of 9.0 m along the cable-stayed beam. Unlike the traditional fan-shaped cable arrangement, this bridge adopts a reverse layout, with the outermost cable having the lowest anchorage point on the tower. The foundations for the bridge towers, auxiliary piers, and edge piers are all constructed using bored piles.

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Zineng Chen, Xing Wu Overall Design of the Main Bridge of Hutuo River Extra Large Bridge. Prestress Technology 2024,2(03):71-83. 10.59238/j. pt.2024.03.007

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  • 收稿日期:2024-04-23
  • 最后修改日期:2024-09-08
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  • 在线发布日期: 2024-09-30
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