A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Suspension bridge cable clamp hoisting construction method
The invention relates to a suspension bridge cable clamp hoisting construction method. The method comprises the steps that main cable erecting construction is conducted; a temporary restraining device is installed between the portal supporting cable and the main cable, and the portal supporting cable is pulled down to the designed position; the crane for hoisting the cable clamp is moved to the designed position of the cable clamp of the main cable through a winch, and the cable clamp and the main cable are fixed; and dismantling the temporary restraint device. According to the method, before the main cable clamp is installed, the temporary restraining device is firstly used for pulling down the portal supporting cable to the designed position, a restraining point is provided for the portal supporting cable, the calculated span of hoisting and walking of the crown block on the portal supporting cable is reduced, then vertical deformation of the portal supporting cable caused when the crown block walks on the portal supporting cable is reduced, and the safety of the crown block is improved. The aerial operation height of the traction system is reduced, and the cable clamp is convenient to hoist and install.
本申请涉及一种悬索桥索夹吊装施工方法，其包括：进行主缆架设施工；在门架支承索与主缆之间安装临时约束装置，将门架支承索下拉至设计位置；利用卷扬机将吊运索夹的天车移运至主缆索夹设计位置上，并将索夹与主缆固定；拆除临时约束装置。本发明中，在安装主缆索夹之前，先利用临时约束装置，将门架支承索下拉至设计位置，给门架支承索提供一个约束点，减小了天车在门架支承索上吊运走行的计算跨度，进而减小了天车在门架支承索上走行时引起的门架支承索竖向变形，降低了牵引系统空中作业高度，便于吊运安装索夹。
Suspension bridge cable clamp hoisting construction method
The invention relates to a suspension bridge cable clamp hoisting construction method. The method comprises the steps that main cable erecting construction is conducted; a temporary restraining device is installed between the portal supporting cable and the main cable, and the portal supporting cable is pulled down to the designed position; the crane for hoisting the cable clamp is moved to the designed position of the cable clamp of the main cable through a winch, and the cable clamp and the main cable are fixed; and dismantling the temporary restraint device. According to the method, before the main cable clamp is installed, the temporary restraining device is firstly used for pulling down the portal supporting cable to the designed position, a restraining point is provided for the portal supporting cable, the calculated span of hoisting and walking of the crown block on the portal supporting cable is reduced, then vertical deformation of the portal supporting cable caused when the crown block walks on the portal supporting cable is reduced, and the safety of the crown block is improved. The aerial operation height of the traction system is reduced, and the cable clamp is convenient to hoist and install.
本申请涉及一种悬索桥索夹吊装施工方法，其包括：进行主缆架设施工；在门架支承索与主缆之间安装临时约束装置，将门架支承索下拉至设计位置；利用卷扬机将吊运索夹的天车移运至主缆索夹设计位置上，并将索夹与主缆固定；拆除临时约束装置。本发明中，在安装主缆索夹之前，先利用临时约束装置，将门架支承索下拉至设计位置，给门架支承索提供一个约束点，减小了天车在门架支承索上吊运走行的计算跨度，进而减小了天车在门架支承索上走行时引起的门架支承索竖向变形，降低了牵引系统空中作业高度，便于吊运安装索夹。
Suspension bridge cable clamp hoisting construction method
一种悬索桥索夹吊装施工方法
LIU YIQI (author) / LIU RUNZE (author) / ZHOU GONGJIAN (author) / KANG XI (author) / WANG YANFENG (author) / PENG YINGCHUAN (author) / ZHENG GUANG (author) / HUANG FENG (author)
2025-01-14
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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