A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Different-curved-surface tower column construction method for cable-stayed bridge and tower column inhaul cable tensioning process
The invention discloses a construction method of a different-curved-surface tower column for a cable-stayed bridge and a tower column inhaul cable tensioning technology, and belongs to the technical field of cable-stayed bridge construction.The construction method comprises the following steps that after mid-span box girder construction is completed, surveying and lofting are conducted on the tower column, four rectangular points are taken as control points of bridge tower construction, remeasurement is conducted on the construction control points before the tower column construction, and the tower column inhaul cable tensioning technology is obtained; the stability of a control base point is ensured in the tower column construction process; the tower root, the tower column and the tower crown are constructed after measurement, the tower column is divided into nine sections for construction, the positions of three end points on the short axis and the long axis of the section ellipse of the tower column need to be measured through a total station three-dimensional coordinate method after construction of each section of the tower column is completed, and the deviation condition of the tower column in the construction process is calculated; effective measures are adopted to control the line shape of the main tower, the remeasurement frequency is increased, the measurement precision is improved, a 120 t tower crane is adopted for hoisting operation in steel tower section installation, the coordinate position of the section is convenient to adjust, and the safety, economical efficiency and rationality of the design are guaranteed through the reasonable installation technology, anchoring mode and welding construction technology.
本发明公开了一种斜拉桥用异曲面塔柱施工方法及塔柱拉索张拉工艺，属于斜拉桥施工技术领域，包括以下步骤：在中跨箱梁施工完成后，对塔柱进行测量放样，取呈矩形的四个点为桥塔施工的控制点，在塔柱施工前对施工控制点进行复测，并在塔柱施工过程中保证控制基点的稳定性；测量后对塔根、塔柱和塔冠施工，将塔柱分为9个节段施工，塔柱每节段施工完毕后需采用全站仪三维坐标法测量塔柱截面椭圆短轴和长轴上的3个端点位置，计算塔柱在施工过程中的偏移情况；通过采取有效措施控制主塔线形增加复测频率，提高测量精度，钢塔节段安装采用120t塔吊吊装作业，便于调整节段坐标位置，通过合理的安装工艺、锚固方式及焊接施工技术，保证其设计的安全性、经济性、合理性。
Different-curved-surface tower column construction method for cable-stayed bridge and tower column inhaul cable tensioning process
The invention discloses a construction method of a different-curved-surface tower column for a cable-stayed bridge and a tower column inhaul cable tensioning technology, and belongs to the technical field of cable-stayed bridge construction.The construction method comprises the following steps that after mid-span box girder construction is completed, surveying and lofting are conducted on the tower column, four rectangular points are taken as control points of bridge tower construction, remeasurement is conducted on the construction control points before the tower column construction, and the tower column inhaul cable tensioning technology is obtained; the stability of a control base point is ensured in the tower column construction process; the tower root, the tower column and the tower crown are constructed after measurement, the tower column is divided into nine sections for construction, the positions of three end points on the short axis and the long axis of the section ellipse of the tower column need to be measured through a total station three-dimensional coordinate method after construction of each section of the tower column is completed, and the deviation condition of the tower column in the construction process is calculated; effective measures are adopted to control the line shape of the main tower, the remeasurement frequency is increased, the measurement precision is improved, a 120 t tower crane is adopted for hoisting operation in steel tower section installation, the coordinate position of the section is convenient to adjust, and the safety, economical efficiency and rationality of the design are guaranteed through the reasonable installation technology, anchoring mode and welding construction technology.
本发明公开了一种斜拉桥用异曲面塔柱施工方法及塔柱拉索张拉工艺，属于斜拉桥施工技术领域，包括以下步骤：在中跨箱梁施工完成后，对塔柱进行测量放样，取呈矩形的四个点为桥塔施工的控制点，在塔柱施工前对施工控制点进行复测，并在塔柱施工过程中保证控制基点的稳定性；测量后对塔根、塔柱和塔冠施工，将塔柱分为9个节段施工，塔柱每节段施工完毕后需采用全站仪三维坐标法测量塔柱截面椭圆短轴和长轴上的3个端点位置，计算塔柱在施工过程中的偏移情况；通过采取有效措施控制主塔线形增加复测频率，提高测量精度，钢塔节段安装采用120t塔吊吊装作业，便于调整节段坐标位置，通过合理的安装工艺、锚固方式及焊接施工技术，保证其设计的安全性、经济性、合理性。
Different-curved-surface tower column construction method for cable-stayed bridge and tower column inhaul cable tensioning process
一种斜拉桥用异曲面塔柱施工方法及塔柱拉索张拉工艺
YE ZHOU (author) / XU LEI (author) / GUAN QIANG (author) / ZHANG HUAN (author) / SHEN WEICHENG (author) / LIU XIAOHAN (author) / XU XIANMING (author)
2023-11-10
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Bridge tower cable saddle of cable-stayed bridge inhaul cable
| European Patent Office | 2020
Inhaul cable anchoring device for cable-stayed bridge and tensioning construction method
| European Patent Office | 2024
Cable-stayed bridge inhaul cable tensioning device and using method thereof
| European Patent Office | 2024
Overall synchronous tensioning treatment method for cable-stayed bridge inhaul cable
| European Patent Office | 2020
| European Patent Office | 2023