Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Main tower cable saddle transformation construction method for old bridge cable replacement
The invention relates to a main tower cable saddle transformation construction method for old bridge cable replacement, and belongs to the technical field of extradosed cable-stayed bridge construction. The method comprises the steps that firstly, a special-shaped wire dividing pipe cable saddle is manufactured, and the bending radius of the special-shaped wire dividing pipe cable saddle is consistent with the bending radius of an outer pipe of a double-sleeve type cable saddle; secondly, an inner pipe, an anti-sliding cable clamp and an anti-sliding anchor cylinder of the double-sleeve type cable saddle are dismantled, epoxy mortar in the anti-sliding anchor cylinder is chiseled away, and impurities in an outer pipe of the double-sleeve type cable saddle are cleared away; thirdly, the special-shaped wire dividing pipe cable saddle penetrates into an outer pipe of the double-sleeve type cable saddle, and the exposed tower wall lengths of the two ends of the special-shaped wire dividing pipe cable saddle are the same; and 4, positioning plates are arranged at the two ends of the special-shaped wire dividing pipe cable saddle correspondingly, and the positioning plates are connected with the base plates on the corresponding sides of the double-sleeve type cable saddle. The stay cable saddle is provided with the wire dividing pipeline, stress is uniform, meanwhile, single cable replacement, tensioning and cable adjustment of the stay cable steel strand are achieved through small construction equipment, high-strength mortar does not need to be poured into the two ends of the cable saddle, and later maintenance and replacement of the stay cable are facilitated.
本发明涉及一种旧桥换索的主塔索鞍改造施工方法，属于矮塔斜拉桥施工技术领域。步骤一：制作异型分丝管索鞍，异型分丝管索鞍的弯曲半径与双套管式索鞍的外管的弯曲半径一致；步骤二：拆除双套管式索鞍的内管、抗滑索夹、抗滑锚筒，凿除抗滑锚筒内的环氧砂浆，并清理双套管式索鞍的外管内杂质；步骤三：将异型分丝管索鞍穿入双套管式索鞍的外管内，且异型分丝管索鞍两端外露塔壁长度相同；步骤四：异型分丝管索鞍两端分别设有定位板，所述定位板与双套管式索鞍对应侧的垫板相连接。本申请具备分丝管道，在受力均匀的同时，采用小型施工机具实现斜拉索钢绞线的单根换索、张拉、调索，且索鞍两端无需灌注高强砂浆，便于斜拉索的后期维护和更换。
Main tower cable saddle transformation construction method for old bridge cable replacement
The invention relates to a main tower cable saddle transformation construction method for old bridge cable replacement, and belongs to the technical field of extradosed cable-stayed bridge construction. The method comprises the steps that firstly, a special-shaped wire dividing pipe cable saddle is manufactured, and the bending radius of the special-shaped wire dividing pipe cable saddle is consistent with the bending radius of an outer pipe of a double-sleeve type cable saddle; secondly, an inner pipe, an anti-sliding cable clamp and an anti-sliding anchor cylinder of the double-sleeve type cable saddle are dismantled, epoxy mortar in the anti-sliding anchor cylinder is chiseled away, and impurities in an outer pipe of the double-sleeve type cable saddle are cleared away; thirdly, the special-shaped wire dividing pipe cable saddle penetrates into an outer pipe of the double-sleeve type cable saddle, and the exposed tower wall lengths of the two ends of the special-shaped wire dividing pipe cable saddle are the same; and 4, positioning plates are arranged at the two ends of the special-shaped wire dividing pipe cable saddle correspondingly, and the positioning plates are connected with the base plates on the corresponding sides of the double-sleeve type cable saddle. The stay cable saddle is provided with the wire dividing pipeline, stress is uniform, meanwhile, single cable replacement, tensioning and cable adjustment of the stay cable steel strand are achieved through small construction equipment, high-strength mortar does not need to be poured into the two ends of the cable saddle, and later maintenance and replacement of the stay cable are facilitated.
本发明涉及一种旧桥换索的主塔索鞍改造施工方法，属于矮塔斜拉桥施工技术领域。步骤一：制作异型分丝管索鞍，异型分丝管索鞍的弯曲半径与双套管式索鞍的外管的弯曲半径一致；步骤二：拆除双套管式索鞍的内管、抗滑索夹、抗滑锚筒，凿除抗滑锚筒内的环氧砂浆，并清理双套管式索鞍的外管内杂质；步骤三：将异型分丝管索鞍穿入双套管式索鞍的外管内，且异型分丝管索鞍两端外露塔壁长度相同；步骤四：异型分丝管索鞍两端分别设有定位板，所述定位板与双套管式索鞍对应侧的垫板相连接。本申请具备分丝管道，在受力均匀的同时，采用小型施工机具实现斜拉索钢绞线的单根换索、张拉、调索，且索鞍两端无需灌注高强砂浆，便于斜拉索的后期维护和更换。
Main tower cable saddle transformation construction method for old bridge cable replacement
一种旧桥换索的主塔索鞍改造施工方法
JIN PING (Autor:in) / SHAN JI'AN (Autor:in) / XU QIFENG (Autor:in) / JIANG PING (Autor:in) / YANG XIAOHAI (Autor:in) / YOU XIAOXIANG (Autor:in) / HE FEI (Autor:in) / XUE MEIPING (Autor:in)
03.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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