A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Replacement construction method for stay cable of extradosed cable-stayed bridge with anti-sliding anchoring device
The invention relates to a replacement construction method of a stay cable of an extradosed cable-stayed bridge with an anti-sliding anchoring device. The replacement construction method mainly comprises the following steps: a construction stage: performing construction preparation work; processing an old cable operation window; arranging cable replacement construction equipment; the old cable steel strand is released and unloaded; the old cable steel strand is pulled out and unloaded, and the tool steel strand is guided in; cleaning an anchor taper hole; a new steel strand penetrates and is tensioned; repeating the steps 4-7 until the replacement of the steel strand of the whole cable is completed; and resetting and mounting the component, and performing preservative treatment. And a temporary steel strand with an auxiliary function is introduced, so that the technical problems of traction and guide of penetration and guide of the new steel strand are solved.
本发明涉及一种具有抗滑锚固装置的矮塔斜拉桥斜拉索的更换施工方法，主要包括施工阶段：施工准备工作；旧索操作窗口处理；换索施工设备布置；旧索钢绞线放张卸力；旧索钢绞线抽卸、工具钢绞线导入；锚锥孔清理；新钢绞线穿入、张拉；重复上述4～7，直至完成全索钢绞线的更换；构件复位安装、防腐处理。引入一根起辅助功能的临时钢绞线，解决了新钢绞线穿入导向的牵引和引导的技术难题。
Replacement construction method for stay cable of extradosed cable-stayed bridge with anti-sliding anchoring device
The invention relates to a replacement construction method of a stay cable of an extradosed cable-stayed bridge with an anti-sliding anchoring device. The replacement construction method mainly comprises the following steps: a construction stage: performing construction preparation work; processing an old cable operation window; arranging cable replacement construction equipment; the old cable steel strand is released and unloaded; the old cable steel strand is pulled out and unloaded, and the tool steel strand is guided in; cleaning an anchor taper hole; a new steel strand penetrates and is tensioned; repeating the steps 4-7 until the replacement of the steel strand of the whole cable is completed; and resetting and mounting the component, and performing preservative treatment. And a temporary steel strand with an auxiliary function is introduced, so that the technical problems of traction and guide of penetration and guide of the new steel strand are solved.
本发明涉及一种具有抗滑锚固装置的矮塔斜拉桥斜拉索的更换施工方法，主要包括施工阶段：施工准备工作；旧索操作窗口处理；换索施工设备布置；旧索钢绞线放张卸力；旧索钢绞线抽卸、工具钢绞线导入；锚锥孔清理；新钢绞线穿入、张拉；重复上述4～7，直至完成全索钢绞线的更换；构件复位安装、防腐处理。引入一根起辅助功能的临时钢绞线，解决了新钢绞线穿入导向的牵引和引导的技术难题。
Replacement construction method for stay cable of extradosed cable-stayed bridge with anti-sliding anchoring device
一种具有抗滑锚固装置的矮塔斜拉桥斜拉索的更换施工方法
ZHAO JUN (author) / SHI ZHAOMIN (author) / SHAN JI'AN (author) / XU QIFENG (author) / JIN PING (author) / FEI HANBING (author) / YUAN DAN (author) / LI TAO (author)
2023-01-03
Patent
Electronic Resource
Chinese
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