A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction process of main bridge of double-tower single-cable-plane extradosed cable-stayed bridge
The invention relates to a construction process of a main bridge of a double-tower single-cable-plane extradosed cable-stayed bridge. The main bridge comprises two main piers and two transition piers.A girder is a whole single-box three-chamber straight web box beam; a main span is arranged in a single-hole two-way navigation manner; the girder adopts a longitudinal, transverse and vertical three-direction prestress system, and is designed according to a full-prestressed concrete member. The sequence of the girder construction process is as follows: No.0 and No.1 beam sections are constructedat the same time; the No.0 beam section is connected with the main pier through a tower beam consolidation system; then, a cantilever symmetrically pours No. 2 to No. 20 beam sections on the side span side and the main span side; meanwhile, a cable bent tower is constructed, inhaul cable supporting facilities are installed, a synchronous suspension pouring beam body and stay cable lagging two sections are installed, a No. 22 beam section located on a transition pier is constructed in due time, then a side span closure section and a middle span closure section are constructed, finally, auxiliary facilities are constructed, and main bridge construction is completed. The construction process is reasonable in step design, short in construction period, safe and reliable in construction and high in quality.
本发明涉及一种双塔单索面矮塔斜拉桥主桥的施工工艺，主桥包括两个主墩和两个过渡墩，主梁为整幅单箱三室直腹板箱梁，主跨按单孔双向通航布置，主梁采用纵、横、竖三向预应力体系，按全预应力混凝土构件设计，所述主梁施工工艺的顺序依次是：先同时施工0号、1号梁段，0号梁段与主墩采用塔梁固结体系连接，然后悬臂对称浇筑边跨侧和主跨侧的2号至20号梁段，同时施工索塔并安装拉索配套设施，同步悬浇梁身，斜拉索滞后两个节段安装，适时施工位于过渡墩上的22号梁段，再施工边跨合拢段和中跨合拢段，最后施工附属设施，完成主桥施工；本发明步骤设计合理，施工周期短，施工安全可靠，质量高。
Construction process of main bridge of double-tower single-cable-plane extradosed cable-stayed bridge
The invention relates to a construction process of a main bridge of a double-tower single-cable-plane extradosed cable-stayed bridge. The main bridge comprises two main piers and two transition piers.A girder is a whole single-box three-chamber straight web box beam; a main span is arranged in a single-hole two-way navigation manner; the girder adopts a longitudinal, transverse and vertical three-direction prestress system, and is designed according to a full-prestressed concrete member. The sequence of the girder construction process is as follows: No.0 and No.1 beam sections are constructedat the same time; the No.0 beam section is connected with the main pier through a tower beam consolidation system; then, a cantilever symmetrically pours No. 2 to No. 20 beam sections on the side span side and the main span side; meanwhile, a cable bent tower is constructed, inhaul cable supporting facilities are installed, a synchronous suspension pouring beam body and stay cable lagging two sections are installed, a No. 22 beam section located on a transition pier is constructed in due time, then a side span closure section and a middle span closure section are constructed, finally, auxiliary facilities are constructed, and main bridge construction is completed. The construction process is reasonable in step design, short in construction period, safe and reliable in construction and high in quality.
本发明涉及一种双塔单索面矮塔斜拉桥主桥的施工工艺，主桥包括两个主墩和两个过渡墩，主梁为整幅单箱三室直腹板箱梁，主跨按单孔双向通航布置，主梁采用纵、横、竖三向预应力体系，按全预应力混凝土构件设计，所述主梁施工工艺的顺序依次是：先同时施工0号、1号梁段，0号梁段与主墩采用塔梁固结体系连接，然后悬臂对称浇筑边跨侧和主跨侧的2号至20号梁段，同时施工索塔并安装拉索配套设施，同步悬浇梁身，斜拉索滞后两个节段安装，适时施工位于过渡墩上的22号梁段，再施工边跨合拢段和中跨合拢段，最后施工附属设施，完成主桥施工；本发明步骤设计合理，施工周期短，施工安全可靠，质量高。
Construction process of main bridge of double-tower single-cable-plane extradosed cable-stayed bridge
一种双塔单索面矮塔斜拉桥主桥的施工工艺
ZHONG LIHUA (author) / GUO JUN (author) / YANG HUI (author) / ZENG CHENG (author) / ZENG GUOSHENG (author) / WEN FENG (author) / LU HAIHUA (author) / HU KAIJIE (author) / GAO WEI (author) / LIANG JIANFENG (author)
2020-07-28
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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