Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Unstressed installation and adjustment construction method forvertical inhaul cable of fork ear type anchorage device
The invention provides an unstressed installation and adjustment construction method for a vertical inhaul cable of a fork ear type anchorage device. The method comprises the following steps: calculating and measuring unstressed cable length, dismantling a steel arch bracket, installing and welding box girder fork lugs, accurately measuring coordinates of the fork lugs, assembling inhaul cable connecting components, initially installing inhaul cables, marking inhaul cable parameters, dismantling a main girder bracket, tensioning cable force, paving a bridge deck and secondarily tensioning the cable force; and meanwhile, carrying out tracking, detecting and correcting, obtaining a cable force unified measurement result, and completing installation of the inhaul cable. According to different stress of each section of the steel arch, the lengths of the unstressed initially-installed inhaul cables are calculated respectively, and in-plant locking control is carried out; and during installation, adjustment is carried out according to the designed cable force, the cable force is analyzed and checked through a frequency detector, and it is guaranteed that the cable force is controlled within the design range. Therefore, the tensioning frequency is reduced, the stress safety of the steel arch and the main bridge is ensured, and a good effect is achieved.
本发明提供了叉耳式锚具垂直拉索无应力法安装调整施工方法，包括以下步骤，计算测量无应力索长→拆除钢拱支架→组焊箱梁叉耳→精确测量叉耳坐标→组对拉索连接构件→拉索初装→做拉索参数标记→主梁支架拆除→索力张拉→桥面铺装→索力二次张拉、同时跟踪检测校正→索力统测成果→完成拉索安装。本发明根据钢拱各节段受力不同，分别计算无应力初装拉索长度，进行厂内制锁控制；安装时根据设计索力进行调整，利用频率检测仪对索力分析及验算，保证索力控制在设计范围。由此减少张拉频次，确保钢拱及主桥受力安全，取得了良好的效果。
Unstressed installation and adjustment construction method forvertical inhaul cable of fork ear type anchorage device
The invention provides an unstressed installation and adjustment construction method for a vertical inhaul cable of a fork ear type anchorage device. The method comprises the following steps: calculating and measuring unstressed cable length, dismantling a steel arch bracket, installing and welding box girder fork lugs, accurately measuring coordinates of the fork lugs, assembling inhaul cable connecting components, initially installing inhaul cables, marking inhaul cable parameters, dismantling a main girder bracket, tensioning cable force, paving a bridge deck and secondarily tensioning the cable force; and meanwhile, carrying out tracking, detecting and correcting, obtaining a cable force unified measurement result, and completing installation of the inhaul cable. According to different stress of each section of the steel arch, the lengths of the unstressed initially-installed inhaul cables are calculated respectively, and in-plant locking control is carried out; and during installation, adjustment is carried out according to the designed cable force, the cable force is analyzed and checked through a frequency detector, and it is guaranteed that the cable force is controlled within the design range. Therefore, the tensioning frequency is reduced, the stress safety of the steel arch and the main bridge is ensured, and a good effect is achieved.
本发明提供了叉耳式锚具垂直拉索无应力法安装调整施工方法，包括以下步骤，计算测量无应力索长→拆除钢拱支架→组焊箱梁叉耳→精确测量叉耳坐标→组对拉索连接构件→拉索初装→做拉索参数标记→主梁支架拆除→索力张拉→桥面铺装→索力二次张拉、同时跟踪检测校正→索力统测成果→完成拉索安装。本发明根据钢拱各节段受力不同，分别计算无应力初装拉索长度，进行厂内制锁控制；安装时根据设计索力进行调整，利用频率检测仪对索力分析及验算，保证索力控制在设计范围。由此减少张拉频次，确保钢拱及主桥受力安全，取得了良好的效果。
Unstressed installation and adjustment construction method forvertical inhaul cable of fork ear type anchorage device
叉耳式锚具垂直拉索无应力法安装调整施工方法
ZHANG SHUZHI (Autor:in) / YANG ZUSHUAI (Autor:in) / WANG ZHIQIANG (Autor:in) / WANG PEIPEI (Autor:in) / ZHANG YONG (Autor:in) / MA ZHENKUN (Autor:in) / XIN YUKUAN (Autor:in) / WU ZHIJIE (Autor:in) / ZHANG CHAO (Autor:in) / TU RONGYUE (Autor:in)
27.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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