A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hoisting process for arch bridge in narrow range
The invention provides a hoisting process for an arch bridge in a narrow range, which comprises the following steps of: firstly, installing a north main span girder and a bridge floor structure; then installing a north-side main span bracket and an arch section; a south main span girder and a bridge floor structure are installed, and then a main span arch rib support and an arch rib are installed; hoisting a main span residual bridge deck structure, and mounting and tensioning a main span suspender; mounting a main beam of a north-side secondary-span bridge floor structure, and then mounting a secondary-span arch rib bracket and a secondary-span arch rib; hoisting a secondary-span remaining bridge floor structure, tensioning a secondary-span suspender, and mounting a secondary-span bridge floor; monitoring is carried out, specifically, the designed arch bridge state serves as a target, then each hoisting segment serves as an independent structure, and limiting control is carried out when the main beam is hoisted in a segmented mode; the monitoring specifically comprises linear monitoring, stress monitoring and cable force monitoring. According to the method, the corresponding assembly sequence is selected and matched with monitoring, so that safe hoisting of the arch bridge in a narrow range is ensured.
本发明提供了狭小范围内拱桥的吊装工艺，包括以下步骤，先安装北侧主跨主梁与桥面结构；然后安装北侧主跨支架与拱节段安装；南侧主跨主梁与桥面结构安装，然后主跨拱肋支架与拱肋安装；吊装主跨剩余桥面结构，主跨吊杆安装和张拉；北侧次跨桥面结构主梁安装，然后次跨拱肋支架与次跨拱肋安装；吊装次跨剩余桥面结构，次跨吊杆张拉，次跨桥面安装；还包括监测，具体为以设计的拱桥状态为目标，然后以每个吊装节段为独立构建，在分段吊装主梁时进行限位控制；所述监测具体包括线形监测、应力监测以及索力监测。本发明通过选用对应的装配顺序，配合监测，确保了在狭小范围内拱桥的安全吊装。
Hoisting process for arch bridge in narrow range
The invention provides a hoisting process for an arch bridge in a narrow range, which comprises the following steps of: firstly, installing a north main span girder and a bridge floor structure; then installing a north-side main span bracket and an arch section; a south main span girder and a bridge floor structure are installed, and then a main span arch rib support and an arch rib are installed; hoisting a main span residual bridge deck structure, and mounting and tensioning a main span suspender; mounting a main beam of a north-side secondary-span bridge floor structure, and then mounting a secondary-span arch rib bracket and a secondary-span arch rib; hoisting a secondary-span remaining bridge floor structure, tensioning a secondary-span suspender, and mounting a secondary-span bridge floor; monitoring is carried out, specifically, the designed arch bridge state serves as a target, then each hoisting segment serves as an independent structure, and limiting control is carried out when the main beam is hoisted in a segmented mode; the monitoring specifically comprises linear monitoring, stress monitoring and cable force monitoring. According to the method, the corresponding assembly sequence is selected and matched with monitoring, so that safe hoisting of the arch bridge in a narrow range is ensured.
本发明提供了狭小范围内拱桥的吊装工艺，包括以下步骤，先安装北侧主跨主梁与桥面结构；然后安装北侧主跨支架与拱节段安装；南侧主跨主梁与桥面结构安装，然后主跨拱肋支架与拱肋安装；吊装主跨剩余桥面结构，主跨吊杆安装和张拉；北侧次跨桥面结构主梁安装，然后次跨拱肋支架与次跨拱肋安装；吊装次跨剩余桥面结构，次跨吊杆张拉，次跨桥面安装；还包括监测，具体为以设计的拱桥状态为目标，然后以每个吊装节段为独立构建，在分段吊装主梁时进行限位控制；所述监测具体包括线形监测、应力监测以及索力监测。本发明通过选用对应的装配顺序，配合监测，确保了在狭小范围内拱桥的安全吊装。
Hoisting process for arch bridge in narrow range
狭小范围内拱桥的吊装工艺
HAN LIQIN (author) / ZHU CHENGSONG (author) / SONG XIAN (author) / LUO MIN (author) / HUA LEI (author) / FAN TAO (author) / WEI JUNZHENG (author) / MAO HANWEN (author) / WAN WEI (author) / LIU YUNWEI (author)
2024-07-02
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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