A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tensioning method for suspension bridge cable clamp bolt
The invention relates to a supplementary tensioning method for cable clamp bolts of a suspension bridge, which comprises the following steps of: tensioning the nth group of cable clamp bolts by using first fastening force, and measuring first echo time of ultrasonic waves in screw rods of the cable clamp bolts; continuously loading to the designed fastening force, tensioning the nth group of cable clamp bolts, and measuring the second echo time of the ultrasonic waves in the screw rods; the nut is tightened, the designed fastening force is unloaded, tensioning of the nth group of cable clamp bolts is completed, and the third echo time of the ultrasonic waves in the screw is measured; the steps are repeated until the N groups of cable clamp bolts are tensioned; calculating the fastening force loss of each group of cable clamp bolts; and the tensioning control force of each group of cable clamp bolts is used for tensioning each group of cable clamp bolts, the nuts are tightened, the tensioning control force is unloaded, and tensioning is completed. The tension compensation method for the cable clamp bolt of the suspension bridge is particularly suitable for the suspension bridge in the operation period, the fastening force loss of the cable clamp bolt after tension is completed is accurately considered, and tension compensation is more accurate.
本申请涉及一种悬索桥索夹螺栓的补张方法，包括：以第一紧固力对第n组索夹螺栓进行张拉，测量超声波在其螺杆内的第一回波时间；继续加载至设计紧固力，对第n组索夹螺栓进行张拉，测量超声波在其螺杆内的第二回波时间；拧紧螺母、卸载设计紧固力，完成第n组索夹螺栓的张拉，测量超声波在其螺杆内的第三回波时间；重复上述步骤，直至N组索夹螺栓张拉完毕；计算各组索夹螺栓的紧固力损失；以各组索夹螺栓的张拉控制力分别对各组索夹螺栓进行张拉，拧紧所述螺母、卸载张拉控制力，完成张拉。本发明提供一种悬索桥索夹螺栓的补张方法，特别适用于运营期悬索桥，精准考虑张拉完成后索夹螺栓的紧固力损失，补张更加精确。
Tensioning method for suspension bridge cable clamp bolt
The invention relates to a supplementary tensioning method for cable clamp bolts of a suspension bridge, which comprises the following steps of: tensioning the nth group of cable clamp bolts by using first fastening force, and measuring first echo time of ultrasonic waves in screw rods of the cable clamp bolts; continuously loading to the designed fastening force, tensioning the nth group of cable clamp bolts, and measuring the second echo time of the ultrasonic waves in the screw rods; the nut is tightened, the designed fastening force is unloaded, tensioning of the nth group of cable clamp bolts is completed, and the third echo time of the ultrasonic waves in the screw is measured; the steps are repeated until the N groups of cable clamp bolts are tensioned; calculating the fastening force loss of each group of cable clamp bolts; and the tensioning control force of each group of cable clamp bolts is used for tensioning each group of cable clamp bolts, the nuts are tightened, the tensioning control force is unloaded, and tensioning is completed. The tension compensation method for the cable clamp bolt of the suspension bridge is particularly suitable for the suspension bridge in the operation period, the fastening force loss of the cable clamp bolt after tension is completed is accurately considered, and tension compensation is more accurate.
本申请涉及一种悬索桥索夹螺栓的补张方法，包括：以第一紧固力对第n组索夹螺栓进行张拉，测量超声波在其螺杆内的第一回波时间；继续加载至设计紧固力，对第n组索夹螺栓进行张拉，测量超声波在其螺杆内的第二回波时间；拧紧螺母、卸载设计紧固力，完成第n组索夹螺栓的张拉，测量超声波在其螺杆内的第三回波时间；重复上述步骤，直至N组索夹螺栓张拉完毕；计算各组索夹螺栓的紧固力损失；以各组索夹螺栓的张拉控制力分别对各组索夹螺栓进行张拉，拧紧所述螺母、卸载张拉控制力，完成张拉。本发明提供一种悬索桥索夹螺栓的补张方法，特别适用于运营期悬索桥，精准考虑张拉完成后索夹螺栓的紧固力损失，补张更加精确。
Tensioning method for suspension bridge cable clamp bolt
一种悬索桥索夹螺栓的补张方法
LIU LI (author) / WU XIANZHI (author) / FAN JUNJIE (author) / TANG XIBIAO (author) / PENG XUMING (author) / YI JIANJUN (author) / PAN YUNFENG (author) / YAO LEI (author) / ZHANG LONG (author) / XIE YING (author)
2023-05-30
Patent
Electronic Resource
Chinese
| European Patent Office | 2015
| European Patent Office | 2022