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A platform for research: civil engineering, architecture and urbanism
Large-dip-angle bridge tower active cross brace and support mounting and dismounting method
The invention discloses a large-dip-angle bridge tower active cross brace and support mounting and dismounting method which comprises the steps that a steel pipe active support is additionally arranged between two tower columns every certain construction sections to serve as a temporary supporting rod for main tower construction, the tower columns are provided with a plurality of horizontal cross braces, and each support is provided with two steel pipes; before concrete is poured into the tower column, the embedded steel plate and the climbing cone are embedded to the designed position in advance; before tower column horizontal cross braces are installed, a construction operation platform and a construction channel are installed on the inner sides of the two tower columns, then anchor plates and supports are installed, and stay pipes are hoisted to designated positions to be installed through a tower crane; and according to analysis and calculation, the magnitude of the jacking force is determined, and the jacking force is applied. The supporting problem in large-dip-angle bridge tower construction is effectively solved, additional bending moment generated by self weight and construction load can be eliminated through the arranged active cross braces and supports, then it is ensured that no crack is generated on the tower limbs, and the influence on the overall line shape of the cable bent tower is effectively reduced.
本发明公开了一种大倾角桥塔主动横撑及支架安拆方法，安装方法包括：每隔一定的施工节段，在两塔柱间增设一道钢管主动支撑作为主塔施工临时撑杆，塔柱共设置有若干道水平横撑，每道支撑设置2根钢管；在塔柱浇筑混凝土前，将预埋钢板及爬锥提前预埋至设计位置；塔柱水平横撑安装前，在两塔柱内侧先安装施工操作平台和施工通道，然后安装锚板、支座，利用塔吊将撑管吊装至指定位置安装；根据分析计算，确定顶推力的大小，施加顶推力。本发明有效的解决了大倾角桥塔施工中的支撑问题，通过设置的主动横撑及支架，可以消除自重及施工荷载所产生的附加弯矩，进而确保塔肢不产生裂缝，有效减少对索塔整体线形的影响。
Large-dip-angle bridge tower active cross brace and support mounting and dismounting method
The invention discloses a large-dip-angle bridge tower active cross brace and support mounting and dismounting method which comprises the steps that a steel pipe active support is additionally arranged between two tower columns every certain construction sections to serve as a temporary supporting rod for main tower construction, the tower columns are provided with a plurality of horizontal cross braces, and each support is provided with two steel pipes; before concrete is poured into the tower column, the embedded steel plate and the climbing cone are embedded to the designed position in advance; before tower column horizontal cross braces are installed, a construction operation platform and a construction channel are installed on the inner sides of the two tower columns, then anchor plates and supports are installed, and stay pipes are hoisted to designated positions to be installed through a tower crane; and according to analysis and calculation, the magnitude of the jacking force is determined, and the jacking force is applied. The supporting problem in large-dip-angle bridge tower construction is effectively solved, additional bending moment generated by self weight and construction load can be eliminated through the arranged active cross braces and supports, then it is ensured that no crack is generated on the tower limbs, and the influence on the overall line shape of the cable bent tower is effectively reduced.
本发明公开了一种大倾角桥塔主动横撑及支架安拆方法，安装方法包括：每隔一定的施工节段，在两塔柱间增设一道钢管主动支撑作为主塔施工临时撑杆，塔柱共设置有若干道水平横撑，每道支撑设置2根钢管；在塔柱浇筑混凝土前，将预埋钢板及爬锥提前预埋至设计位置；塔柱水平横撑安装前，在两塔柱内侧先安装施工操作平台和施工通道，然后安装锚板、支座，利用塔吊将撑管吊装至指定位置安装；根据分析计算，确定顶推力的大小，施加顶推力。本发明有效的解决了大倾角桥塔施工中的支撑问题，通过设置的主动横撑及支架，可以消除自重及施工荷载所产生的附加弯矩，进而确保塔肢不产生裂缝，有效减少对索塔整体线形的影响。
Large-dip-angle bridge tower active cross brace and support mounting and dismounting method
一种大倾角桥塔主动横撑及支架安拆方法
ZHANG YONGJIANG (author) / LI WEI (author) / ZHU YONGDE (author) / ZHANG FENGCHUN (author) / YANG CHAO (author) / JIANG LANG (author) / ZHANG DONGFANG (author) / ZHAO DONGXU (author) / ZHUAN-SUN GUANGXUN (author) / LI HONGHONG (author)
2024-03-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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