A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Stay cable grading asymmetric tensioning method for large-span cable-stayed bridge
The invention belongs to the technical field of bridge construction, and particularly relates to a stayed cable grading asymmetric tensioning method for a large-span cable-stayed bridge, which comprises the following steps of: 1, determining a component needing to adopt the grading asymmetric tensioning method according to design requirements and structural characteristics; according to the stayed cable grading asymmetric tensioning method for the large-span cable-stayed bridge, the deformation state of a component can be measured when the component cannot be detached after bridge installation and construction by arranging the deformation measuring mechanism, the deformation measuring mechanism is suitable for measurement operation of components of different specifications such as cylindrical components and square components, the applicability is wide, and the practicability is high. The measurement accuracy is high, the measurement operation is convenient, and the device can be detached and placed when measurement is not needed, and can be taken out when measurement is needed, so that deformation caused by self weight, shrinkage and expansion deformation caused by sunlight temperature difference and shrinkage deformation caused by welding in long-term use of a component after installation can be measured, and the measurement accuracy is high. Therefore, the construction efficiency and the construction quality are enhanced.
本发明属于桥梁施工技术领域，尤其是一种大跨斜拉桥斜拉索分级不对称张拉方法，步骤一、根据设计要求和结构特点，确定需要采用分级不对称张拉法的构件。该大跨斜拉桥斜拉索分级不对称张拉方法，本发明通过设置变形测量机构达到了构件在桥梁安装施工后无法拆卸中，还可以进行测量构件的变形状态，且本变形测量机构适用不同规格的构件测量操作如圆柱形构件和方形构件，适用性广，测量精确度高，测量操作方便，在不需要测量中还可以拆卸放置需要测量使用拿出即可，进而在安装后构件长期使用中因自重产生的变形、日照温差造成的缩胀变形和焊接产生收缩变形，都能够进行测量出，从而增强了施工的效率以及加强了施工的质量。
Stay cable grading asymmetric tensioning method for large-span cable-stayed bridge
The invention belongs to the technical field of bridge construction, and particularly relates to a stayed cable grading asymmetric tensioning method for a large-span cable-stayed bridge, which comprises the following steps of: 1, determining a component needing to adopt the grading asymmetric tensioning method according to design requirements and structural characteristics; according to the stayed cable grading asymmetric tensioning method for the large-span cable-stayed bridge, the deformation state of a component can be measured when the component cannot be detached after bridge installation and construction by arranging the deformation measuring mechanism, the deformation measuring mechanism is suitable for measurement operation of components of different specifications such as cylindrical components and square components, the applicability is wide, and the practicability is high. The measurement accuracy is high, the measurement operation is convenient, and the device can be detached and placed when measurement is not needed, and can be taken out when measurement is needed, so that deformation caused by self weight, shrinkage and expansion deformation caused by sunlight temperature difference and shrinkage deformation caused by welding in long-term use of a component after installation can be measured, and the measurement accuracy is high. Therefore, the construction efficiency and the construction quality are enhanced.
本发明属于桥梁施工技术领域，尤其是一种大跨斜拉桥斜拉索分级不对称张拉方法，步骤一、根据设计要求和结构特点，确定需要采用分级不对称张拉法的构件。该大跨斜拉桥斜拉索分级不对称张拉方法，本发明通过设置变形测量机构达到了构件在桥梁安装施工后无法拆卸中，还可以进行测量构件的变形状态，且本变形测量机构适用不同规格的构件测量操作如圆柱形构件和方形构件，适用性广，测量精确度高，测量操作方便，在不需要测量中还可以拆卸放置需要测量使用拿出即可，进而在安装后构件长期使用中因自重产生的变形、日照温差造成的缩胀变形和焊接产生收缩变形，都能够进行测量出，从而增强了施工的效率以及加强了施工的质量。
Stay cable grading asymmetric tensioning method for large-span cable-stayed bridge
一种大跨斜拉桥斜拉索分级不对称张拉方法
MAO KUI (author) / LI LIKUN (author) / TANG WENDONG (author)
2023-09-12
Patent
Electronic Resource
Chinese
Tensioning construction method for back cable and stay cable of cable-stayed bridge
| European Patent Office | 2024
Stay cable tensioning construction method for engineering construction of cable-stayed bridge
| European Patent Office | 2021
Tensioning control method and device for stay cable of cable-stayed bridge
| European Patent Office | 2022
Construction method of epoxy steel strand stay cable of large-span cable-stayed bridge
| European Patent Office | 2023