A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Arch bridge cable-stayed buckling and hanging system and construction method
The invention relates to an arch bridge cable-stayed buckling system and a construction method. The buckling system comprises a tower, at least one front cable and at least one rear cable are connected to the tower, the front cables are connected with arch rib sections, the rear cables are connected with buckling ground anchors, and the sum of component forces of all the rear cables in the horizontal direction is equal to the sum of component forces of all the front cables in the horizontal direction. The front cable and the rear cable are used for replacing an original through cable, and the front cable and the rear cable only need to be configured to have the same component force in the horizontal direction, so that the tower can be stressed in the horizontal direction in a balanced mode, displacement is basically avoided, and the arch rib installation line shape is not affected; the front cable and the rear cable are separately arranged and are respectively tensioned, so that cable hanging operation can be carried out on a tower frame in advance before the arch rib sections are installed, and after the arch rib sections are in place, the connecting buckling points can start to be tensioned; and cable hanging and tensioning are not needed after the arch rib sections are hoisted in place like a through cable, and the installation time of the arch rib sections can be shortened.
本发明关于一种拱桥斜拉扣挂系统及施工方法，该扣挂系统包括塔架，塔架上连接至少一根前索和至少一根后索，前索连接拱肋节段，后索连接扣地锚，所有后索在水平向的分力之和等于所有前索在水平向的分力之和。本发明利用前索和后索代替原有通索，仅需要配置前后索在水平方向分力相同，即可使得塔架水平方向受力平衡，基本无位移，不影响拱肋安装线形，前后索水平角可以任意设置，避免原有通索水平力难以调节相同导致拱肋安装线形有偏差的弊端，前索和后索分开设置且分别进行张拉，即可在拱肋节段安装前提前在塔架上进行挂索操作，拱肋节段就位后连接扣点即可开始张拉，不必像通索一样在拱肋节段吊装就位后再挂索和张拉，能减少拱肋节段安装时长。
Arch bridge cable-stayed buckling and hanging system and construction method
The invention relates to an arch bridge cable-stayed buckling system and a construction method. The buckling system comprises a tower, at least one front cable and at least one rear cable are connected to the tower, the front cables are connected with arch rib sections, the rear cables are connected with buckling ground anchors, and the sum of component forces of all the rear cables in the horizontal direction is equal to the sum of component forces of all the front cables in the horizontal direction. The front cable and the rear cable are used for replacing an original through cable, and the front cable and the rear cable only need to be configured to have the same component force in the horizontal direction, so that the tower can be stressed in the horizontal direction in a balanced mode, displacement is basically avoided, and the arch rib installation line shape is not affected; the front cable and the rear cable are separately arranged and are respectively tensioned, so that cable hanging operation can be carried out on a tower frame in advance before the arch rib sections are installed, and after the arch rib sections are in place, the connecting buckling points can start to be tensioned; and cable hanging and tensioning are not needed after the arch rib sections are hoisted in place like a through cable, and the installation time of the arch rib sections can be shortened.
本发明关于一种拱桥斜拉扣挂系统及施工方法，该扣挂系统包括塔架，塔架上连接至少一根前索和至少一根后索，前索连接拱肋节段，后索连接扣地锚，所有后索在水平向的分力之和等于所有前索在水平向的分力之和。本发明利用前索和后索代替原有通索，仅需要配置前后索在水平方向分力相同，即可使得塔架水平方向受力平衡，基本无位移，不影响拱肋安装线形，前后索水平角可以任意设置，避免原有通索水平力难以调节相同导致拱肋安装线形有偏差的弊端，前索和后索分开设置且分别进行张拉，即可在拱肋节段安装前提前在塔架上进行挂索操作，拱肋节段就位后连接扣点即可开始张拉，不必像通索一样在拱肋节段吊装就位后再挂索和张拉，能减少拱肋节段安装时长。
Arch bridge cable-stayed buckling and hanging system and construction method
一种拱桥斜拉扣挂系统及施工方法
LUO XIAOBIN (author) / KUANG ZHIQIANG (author) / QIN DAYAN (author) / HAN YU (author) / LI QUAN (author) / LU BIN (author) / LIAO BOLIN (author) / HOU KAIWEN (author) / TANG YANYUN (author) / CHEN XIANG (author)
2023-08-25
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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