A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Suspension bridge asymmetric catwalk system and suspension bridge construction method
The invention relates to an asymmetric catwalk system of a suspension bridge and a construction method of the suspension bridge. The widths of spaces formed between the two sides, in the transverse bridge direction, of a portal frame of the catwalk system and a main cable are different, and the spaces are in an asymmetric state; a supporting cable is arranged at the top of the portal frame, a plurality of bearing cables are arranged at the bottom of the portal frame, and the bearing cables are divided into two groups with the same number, are uniformly distributed at intervals according to a first design distance and a second design distance and are in an asymmetric state; the longitudinal shaft penetrates through the structural gravity center of the catwalk surface layer; the longitudinal axis extends in the longitudinal bridge direction and penetrates through the middle point of the connecting line of the centers of all the bearing cables, so that unbalance loading generated by asymmetry of the catwalk bearing cables and unbalance loading generated by asymmetry of the catwalk surface layer are counteracted, and it is guaranteed that the catwalk is flat when the catwalk surface layer and the transverse overbridge are installed. And unbalance loading generated during traction of the main cable strand is balanced by the transverse overbridge. After the catwalk is modified and hung, the supporting cable serves as a balance weight, the deflection effect caused by asymmetry of the catwalk structure relative to the center line of the main cable after the catwalk is modified and hung on the main cable is counteracted, and construction is convenient and fast.
本申请涉及一种悬索桥非对称猫道系统及悬索桥施工方法，该猫道系统的门架横桥向两侧与主缆之间形成的空间的宽度不同，呈非对称状态；门架顶部设置支承索，底部设有多根承重索，多根承重索分为数量相同的两组，分别以第一设计距离和第二设计距离均匀间隔分布，呈非对称状态；纵轴穿过猫道面层的结构重心；纵轴为在纵桥向延伸，并穿过所有承重索中心的连线的中点的纵桥向轴，使得猫道承重索非对称与猫道面层非对称产生的偏载相抵消，保证猫道面层及横向天桥安装时候猫道平整。主缆索股牵引时产生的偏载由横向天桥平衡。猫道改挂后将支承索作为配重，抵消了改挂于主缆后猫道结构相对主缆中心线不对称造成的偏转效应，施工便捷。
Suspension bridge asymmetric catwalk system and suspension bridge construction method
The invention relates to an asymmetric catwalk system of a suspension bridge and a construction method of the suspension bridge. The widths of spaces formed between the two sides, in the transverse bridge direction, of a portal frame of the catwalk system and a main cable are different, and the spaces are in an asymmetric state; a supporting cable is arranged at the top of the portal frame, a plurality of bearing cables are arranged at the bottom of the portal frame, and the bearing cables are divided into two groups with the same number, are uniformly distributed at intervals according to a first design distance and a second design distance and are in an asymmetric state; the longitudinal shaft penetrates through the structural gravity center of the catwalk surface layer; the longitudinal axis extends in the longitudinal bridge direction and penetrates through the middle point of the connecting line of the centers of all the bearing cables, so that unbalance loading generated by asymmetry of the catwalk bearing cables and unbalance loading generated by asymmetry of the catwalk surface layer are counteracted, and it is guaranteed that the catwalk is flat when the catwalk surface layer and the transverse overbridge are installed. And unbalance loading generated during traction of the main cable strand is balanced by the transverse overbridge. After the catwalk is modified and hung, the supporting cable serves as a balance weight, the deflection effect caused by asymmetry of the catwalk structure relative to the center line of the main cable after the catwalk is modified and hung on the main cable is counteracted, and construction is convenient and fast.
本申请涉及一种悬索桥非对称猫道系统及悬索桥施工方法，该猫道系统的门架横桥向两侧与主缆之间形成的空间的宽度不同，呈非对称状态；门架顶部设置支承索，底部设有多根承重索，多根承重索分为数量相同的两组，分别以第一设计距离和第二设计距离均匀间隔分布，呈非对称状态；纵轴穿过猫道面层的结构重心；纵轴为在纵桥向延伸，并穿过所有承重索中心的连线的中点的纵桥向轴，使得猫道承重索非对称与猫道面层非对称产生的偏载相抵消，保证猫道面层及横向天桥安装时候猫道平整。主缆索股牵引时产生的偏载由横向天桥平衡。猫道改挂后将支承索作为配重，抵消了改挂于主缆后猫道结构相对主缆中心线不对称造成的偏转效应，施工便捷。
Suspension bridge asymmetric catwalk system and suspension bridge construction method
一种悬索桥非对称猫道系统及悬索桥施工方法
JIANG BENJUN (author) / XU HUAYANG (author) / TU MANMING (author) / ZHOU GONGJIAN (author) / ZHANG DONG (author) / DAI HAO (author) / ZHAO QUANCHENG (author) / QIN YONGGANG (author) / ZHAO KUNPENG (author) / LI BAO (author)
2023-09-19
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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