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坦桑尼亚姆万扎市近基贡戈/布西西渡轮附近的 J.P. Magufuli 矮塔斜拉桥(3.0公里)建设
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(坦桑尼亚国家公路局,坦桑尼亚 达累斯萨拉姆市 11364)

作者简介:

Katelula Salum Kaswaga, M.E., Professional Civil Engineer PE. Graduated from Beijing Jiaotong University in 2019, China. Working at TANROADS. Research Direction: Bridge Engineering Design and Construction (Cable-Stayed Bridge Expert).

通讯作者:

Katelula Salum Kaswaga

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Construction of J.P. Magufuli Extradosed Cable-Stayed Bridge (3.0 km) at Mwanza, Tanzania, near Kigongo / Busisi Ferry
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(Tanzania National Roads Agency, P.O. Box 11364 Dar es Salaam Tanzania)

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    摘要:

    J.P. Magufuli 矮塔斜拉桥目前正在建设中。该桥横跨维多利亚湖,全长3000m,桥面宽28.45m,包含:四条3.5m宽机动车道;两侧2.5m+2.5m紧急停车带;两侧2.5m+2.5m人行道;中央2.45m分隔带。主桥采用100m+160m+160m+100m=520m的矮塔斜拉结构,引桥为预应力混凝土(PSC)梁桥,长2480米(两侧引桥均为31×40m=1240m布置)。主桥上部结构为矮塔斜拉桥,采用钢筋混凝土(RCC)桥面板,配有三座高18.856m的钢筋混凝土桥塔。中跨主梁高度5.4m,边跨主梁高度3.2m。本文重点阐述J.P. Magufuli大桥的施工技术,包括实现悬臂平衡施工的特制挂篮系统、桥塔建设、承台预应力施工区建造,以及叠合板组合梁桥面板施工工艺。

    Abstract:

    The J.P. Magufuli extradosed bridge is currently under construction. This bridge crossing Lake Victoria has an overall length of 3,000 m and a deck width of 28.45 m to accommodate 4 lanes of 3.5 m wide carriageways of vehicular traffic, a shoulder of 2.5 m+2.5 m for emergency parking and vehicle breakdown on each side, a 2.5 m+2.5 m footpath for pedestrians on each side, and a median of 2.45 m. The structural arrangement of the main bridge is 100 m+160 m + 160 m+100 m = 520 m, and the approach bridge prestressed concrete (PSC) beam bridge L = 2,480 m (including 31@40=1,240 m on each side). The superstructure is an extradosed bridge with an RCC deck with three RCC pylons 18.856 m in height. The girder heights at the mid-span and end-span are 5.4 m and 3.2 m, respectively. This paper discusses the construction aspects of the J.P. Magufuli bridge along with the details of a special traveling formwork (Form-Traveller) that is used to enable balanced cantilever construction, Pylons, PC House construction for the Pile Cap, and Deck Slab Partial Depth Panel for Deck Slab Construction.

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Katelula Salum Kaswaga Construction of J. P. Magufuli Extradosed Cable-Stayed Bridge (3.0 km) at Mwanza, Tanzania, near Kigongo / Busisi Ferry. Prestress Technology 2025,3(02):54-68. 10.59238/j. pt.2025.02.005

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历史
  • 收稿日期:2024-12-13
  • 最后修改日期:2025-06-23
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  • 在线发布日期: 2025-06-28
  • 出版日期: 2025-06-28