Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel strand stay cable releasing and tensioning construction method and device
The invention relates to a steel strand stay cable releasing construction method and device, and the method comprises the steps that one steel strand of a stay cable is lifted up, an opening anchorage device is installed on the steel strand, a pulley block is installed in sequence, and the pulley block comprises a movable pulley and a fixed pulley; tightening the steel wire rope at the outlet of the movable pulley to shorten the distance between the movable pulley and the fixed pulley, and cutting off the steel strand between the movable pulley and the fixed pulley when the stress value of the steel strand between the movable pulley and the fixed pulley is zero; the cable force of the steel strand between the open anchorage device and the main tower is removed until the stress value of the steel strand at the position is zero, the releasing construction of the steel strand is finished, and the open anchorage device is removed; and so on, releasing construction of the remaining steel strands is completed. According to the method, after the steel strands are anchored by the open anchorage device, the steel strands are cut off after the cable force of the steel strands is released one by one by using the movable pulley and the fixed pulley in a middle releasing manner, so that the cable force releasing removal of the whole stay cable is realized, and the risk of high-altitude operation is avoided when the stay cable is released.
本申请涉及一种钢绞线斜拉索放张施工方法及其装置，其包括：将斜拉索的其中一束钢绞线挑起，在该钢绞线上安装开口锚具，并顺序安装滑轮组，所述滑轮组包括动滑轮和定滑轮；收紧动滑轮出口处的钢丝绳，使动滑轮和定滑轮之间距离变短，当动滑轮和定滑轮之间的钢绞线应力值为零时，切断动滑轮和定滑轮之间的钢绞线；卸掉位于开口锚具与主塔之间的该束钢绞线的索力，直至该处的钢绞线应力值为零时，该束钢绞线放张施工结束，拆除开口锚具；以此类推，完成剩余钢绞线的放张施工。本发明中，将开口锚具锚固钢绞线后，采用中间放张的方式，使用动滑轮和定滑轮逐根放张各钢绞线索力后切断，实现整根斜拉索的索力放张拆除，斜拉索放张时无高空作业风险。
Steel strand stay cable releasing and tensioning construction method and device
The invention relates to a steel strand stay cable releasing construction method and device, and the method comprises the steps that one steel strand of a stay cable is lifted up, an opening anchorage device is installed on the steel strand, a pulley block is installed in sequence, and the pulley block comprises a movable pulley and a fixed pulley; tightening the steel wire rope at the outlet of the movable pulley to shorten the distance between the movable pulley and the fixed pulley, and cutting off the steel strand between the movable pulley and the fixed pulley when the stress value of the steel strand between the movable pulley and the fixed pulley is zero; the cable force of the steel strand between the open anchorage device and the main tower is removed until the stress value of the steel strand at the position is zero, the releasing construction of the steel strand is finished, and the open anchorage device is removed; and so on, releasing construction of the remaining steel strands is completed. According to the method, after the steel strands are anchored by the open anchorage device, the steel strands are cut off after the cable force of the steel strands is released one by one by using the movable pulley and the fixed pulley in a middle releasing manner, so that the cable force releasing removal of the whole stay cable is realized, and the risk of high-altitude operation is avoided when the stay cable is released.
本申请涉及一种钢绞线斜拉索放张施工方法及其装置，其包括：将斜拉索的其中一束钢绞线挑起，在该钢绞线上安装开口锚具，并顺序安装滑轮组，所述滑轮组包括动滑轮和定滑轮；收紧动滑轮出口处的钢丝绳，使动滑轮和定滑轮之间距离变短，当动滑轮和定滑轮之间的钢绞线应力值为零时，切断动滑轮和定滑轮之间的钢绞线；卸掉位于开口锚具与主塔之间的该束钢绞线的索力，直至该处的钢绞线应力值为零时，该束钢绞线放张施工结束，拆除开口锚具；以此类推，完成剩余钢绞线的放张施工。本发明中，将开口锚具锚固钢绞线后，采用中间放张的方式，使用动滑轮和定滑轮逐根放张各钢绞线索力后切断，实现整根斜拉索的索力放张拆除，斜拉索放张时无高空作业风险。
Steel strand stay cable releasing and tensioning construction method and device
一种钢绞线斜拉索放张施工方法及其装置
YAN HAN (Autor:in) / GAO TIAN (Autor:in) / ZHONG JIWEI (Autor:in) / DAI MINGJING (Autor:in) / ZHOU CHANGDONG (Autor:in) / WANG XIANG (Autor:in) / CHEN ZHIMIN (Autor:in) / PENG XUMIN (Autor:in) / ZHAO LANHAI (Autor:in) / ZHAI LEI (Autor:in)
29.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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