A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of cast-in-place box girder cable-stayed bridge
The invention relates to the field of bridge building construction, in particular to a construction method of a cast-in-place box girder cable-stayed bridge. A vertically-through stay cable lifting channel is reserved in the central axis position of the cable bent tower body section, and a stay cable bearing platform for mounting a stay cable is reserved on the cable bent tower; then box girders and stress box girders with bridge end mounting positions are symmetrically built on the two sides of the cable bent tower; finally, two stay cables with the same length are unfolded on the bridge floor on the two sides of the cable bent tower body section at the same time, the tower ends of the two stay cables are connected together at the bottom of the stay cable lifting channel, and the tower ends of the stay cables connected together are lifted and installed on a stay cable bearing platform; and the bridge end of the stay cable is installed at the bridge end installation position of the stress box girder. According to the construction method, the road occupation time in the cast-in-place box girder cable-stayed bridge construction process can be effectively shortened, the lateral stress of the cable bent tower in the stay cable installation process is reduced, and the stability of the cable bent tower is improved.
本发明涉及桥梁建筑施工领域，更具体地，涉及一种现浇箱梁斜拉桥的施工方法。在索塔主体段的中轴线位置预留上下贯通的拉索升降通道，并且在索塔上预留安装斜拉索的拉索承台；然后在索塔的两侧对称建筑箱梁和带有桥端安装位的受力箱梁；最后在索塔主体段两侧的桥面上同时展开两根相同长度的斜拉索，在拉索升降通道底部将两根斜拉索的塔端连接在一起、将连接在一起的斜拉索塔端提升并安装到拉索承台上；将斜拉索的桥端安装到受力箱梁的桥端安装位。该施工方法可有效缩短现浇箱梁斜拉桥施工过程中占用道路的时间、减小斜拉索安装过程中索塔的侧向受力，提高索塔的稳定性。
Construction method of cast-in-place box girder cable-stayed bridge
The invention relates to the field of bridge building construction, in particular to a construction method of a cast-in-place box girder cable-stayed bridge. A vertically-through stay cable lifting channel is reserved in the central axis position of the cable bent tower body section, and a stay cable bearing platform for mounting a stay cable is reserved on the cable bent tower; then box girders and stress box girders with bridge end mounting positions are symmetrically built on the two sides of the cable bent tower; finally, two stay cables with the same length are unfolded on the bridge floor on the two sides of the cable bent tower body section at the same time, the tower ends of the two stay cables are connected together at the bottom of the stay cable lifting channel, and the tower ends of the stay cables connected together are lifted and installed on a stay cable bearing platform; and the bridge end of the stay cable is installed at the bridge end installation position of the stress box girder. According to the construction method, the road occupation time in the cast-in-place box girder cable-stayed bridge construction process can be effectively shortened, the lateral stress of the cable bent tower in the stay cable installation process is reduced, and the stability of the cable bent tower is improved.
本发明涉及桥梁建筑施工领域，更具体地，涉及一种现浇箱梁斜拉桥的施工方法。在索塔主体段的中轴线位置预留上下贯通的拉索升降通道，并且在索塔上预留安装斜拉索的拉索承台；然后在索塔的两侧对称建筑箱梁和带有桥端安装位的受力箱梁；最后在索塔主体段两侧的桥面上同时展开两根相同长度的斜拉索，在拉索升降通道底部将两根斜拉索的塔端连接在一起、将连接在一起的斜拉索塔端提升并安装到拉索承台上；将斜拉索的桥端安装到受力箱梁的桥端安装位。该施工方法可有效缩短现浇箱梁斜拉桥施工过程中占用道路的时间、减小斜拉索安装过程中索塔的侧向受力，提高索塔的稳定性。
Construction method of cast-in-place box girder cable-stayed bridge
一种现浇箱梁斜拉桥的施工方法
LIU RUI (author) / LI LONGSHEN (author) / GAO SHILONG (author) / ZHONG ZHAOFEI (author) / SONG PEILIANG (author) / ZHANG MINGJUN (author) / WANG MENG (author) / WU BIN (author)
2024-05-03
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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