A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for multi-point cable-stayed erection of main cable strands of suspension bridge by using catwalk portal stand columns
The invention relates to a method for multi-point cable-stayed erection of a main cable strand of a suspension bridge by using catwalk portal columns. The method comprises the following steps: erecting a catwalk below a main cable; a traction system is erected above the main cable; a plurality of cable strand rollers are arranged in the catwalk, and the traction system pulls the cable strands to move along the cable strand rollers; a plurality of cable-stayed supports used for pulling and erecting cable strands are installed on the catwalk at intervals in the bridge direction; each cable-stayed support serves as a lifting point position of the cable strand, the cable-stayed supports at the multiple lifting point positions move to the position above the main cable after obliquely pulling the cable strand, and then the cable strand is released to fall into the main cable; and the steps are repeated until all the cable strands are erected. According to the invention, the plurality of cable-stayed brackets are arranged as the plurality of lifting point positions of the cable strand, and the plurality of lifting point positions obliquely pull and move the cable strand along the length direction of the cable strand, so that the time lag effect during erection of the midspan cable strand is eliminated, and the cable strand is ensured not to loosen and twist.
本发明涉及利用猫道门架立柱进行悬索桥主缆索股多点斜拉架设方法，包括在主缆的下方架设猫道；在主缆的上方架设牵引系统；猫道内布置若干个索股滚筒，牵引系统牵引索股沿索股滚筒移动；沿顺桥向在猫道间隔安装多个用于牵拉架设索股的斜拉支架；每个斜拉支架作为索股的提升点位，多个提升点位的斜拉支架在斜向牵拉索股后移动至主缆的上方，然后释放索股使其落入主缆内；重复以上步骤直至完成全部索股的架设。本发明通过设置多个斜拉支架作为索股的多个提升点位，多个提升点位沿索股的长度方向斜向牵拉移动索股，消除了跨中索股架设时的时间滞后效应，确保索股不散丝，不扭转。
Method for multi-point cable-stayed erection of main cable strands of suspension bridge by using catwalk portal stand columns
The invention relates to a method for multi-point cable-stayed erection of a main cable strand of a suspension bridge by using catwalk portal columns. The method comprises the following steps: erecting a catwalk below a main cable; a traction system is erected above the main cable; a plurality of cable strand rollers are arranged in the catwalk, and the traction system pulls the cable strands to move along the cable strand rollers; a plurality of cable-stayed supports used for pulling and erecting cable strands are installed on the catwalk at intervals in the bridge direction; each cable-stayed support serves as a lifting point position of the cable strand, the cable-stayed supports at the multiple lifting point positions move to the position above the main cable after obliquely pulling the cable strand, and then the cable strand is released to fall into the main cable; and the steps are repeated until all the cable strands are erected. According to the invention, the plurality of cable-stayed brackets are arranged as the plurality of lifting point positions of the cable strand, and the plurality of lifting point positions obliquely pull and move the cable strand along the length direction of the cable strand, so that the time lag effect during erection of the midspan cable strand is eliminated, and the cable strand is ensured not to loosen and twist.
本发明涉及利用猫道门架立柱进行悬索桥主缆索股多点斜拉架设方法，包括在主缆的下方架设猫道；在主缆的上方架设牵引系统；猫道内布置若干个索股滚筒，牵引系统牵引索股沿索股滚筒移动；沿顺桥向在猫道间隔安装多个用于牵拉架设索股的斜拉支架；每个斜拉支架作为索股的提升点位，多个提升点位的斜拉支架在斜向牵拉索股后移动至主缆的上方，然后释放索股使其落入主缆内；重复以上步骤直至完成全部索股的架设。本发明通过设置多个斜拉支架作为索股的多个提升点位，多个提升点位沿索股的长度方向斜向牵拉移动索股，消除了跨中索股架设时的时间滞后效应，确保索股不散丝，不扭转。
Method for multi-point cable-stayed erection of main cable strands of suspension bridge by using catwalk portal stand columns
利用猫道门架立柱进行悬索桥主缆索股多点斜拉架设方法
DU JUNBO (author) / LIU ZHENGJUN (author) / WANG HONGRU (author) / ZHANG YUNLONG (author) / YANG FANFAN (author) / MA LEI (author) / WANG XIAOWEI (author)
2024-09-13
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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