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A platform for research: civil engineering, architecture and urbanism
Construction method for erecting spatial main cable strand of three-tower self-anchored suspension bridge
The invention relates to a construction method for erecting a spatial main cable strand of a three-tower self-anchored suspension bridge. The method comprises the following steps: 1, arranging a traction circulating system on a bridge surface of a beam section; 2, hanging the main cable on a passive cable releasing mechanism, connecting a main cable strand with a pulling device, enabling the main cable to advance in the catwalk direction by a traction circulating system, and completing cable strand traction; 3, lifting and transverly moving the cable strand, and shaping the cable strand and then putting into a saddle; 4, after the cable strands are shaped and put into the saddle, pulling anchor heads on the two sides in the anchorage and anchor cable pipe directions through a winch and a pulley block, making the anchor heads penetrate through the corresponding anchor cable pipes, nuts are used for temporary anchoring on the rear anchor faces, and putting the anchor heads into the anchor; 5, adjusting the sag of the reference cable strand and the sag of the cable strand; and 6, tightening the cable strands. The three-tower self-anchored suspension bridge space main cable can be controlled, the erecting efficiency and accuracy of the main cable are improved, and erecting of the two main cable strands can be completed through the traction circulating system.
本发明涉及一种三塔自锚式悬索桥空间主缆索股架设施工工法。包括如下步骤：步骤一、在梁段桥面上布置牵引循环系统；步骤二、主缆吊放于被动放索机构上，将主缆索股与拽拉器连接，牵引循环系统使得主缆沿着猫道方向前进，完成索股牵引；步骤三、对索股进行提升、横移，并对索股进行整形后入鞍；步骤四、完成索股整形入鞍后，利用卷扬机和滑车组分别将两侧锚头向锚碇、锚索管方向牵引，锚头穿过相应的锚索管，并在后锚面上用螺母临时锚固，使得锚头入锚；步骤五、调整基准索股、索股的垂度；步骤六、对索股进行紧缆。本申请能够控制三塔自锚式悬索桥空间主缆，提高了主缆架设效率和精准性，且两幅主缆索股架设通过牵引循环系统即能完成。
Construction method for erecting spatial main cable strand of three-tower self-anchored suspension bridge
The invention relates to a construction method for erecting a spatial main cable strand of a three-tower self-anchored suspension bridge. The method comprises the following steps: 1, arranging a traction circulating system on a bridge surface of a beam section; 2, hanging the main cable on a passive cable releasing mechanism, connecting a main cable strand with a pulling device, enabling the main cable to advance in the catwalk direction by a traction circulating system, and completing cable strand traction; 3, lifting and transverly moving the cable strand, and shaping the cable strand and then putting into a saddle; 4, after the cable strands are shaped and put into the saddle, pulling anchor heads on the two sides in the anchorage and anchor cable pipe directions through a winch and a pulley block, making the anchor heads penetrate through the corresponding anchor cable pipes, nuts are used for temporary anchoring on the rear anchor faces, and putting the anchor heads into the anchor; 5, adjusting the sag of the reference cable strand and the sag of the cable strand; and 6, tightening the cable strands. The three-tower self-anchored suspension bridge space main cable can be controlled, the erecting efficiency and accuracy of the main cable are improved, and erecting of the two main cable strands can be completed through the traction circulating system.
本发明涉及一种三塔自锚式悬索桥空间主缆索股架设施工工法。包括如下步骤：步骤一、在梁段桥面上布置牵引循环系统；步骤二、主缆吊放于被动放索机构上，将主缆索股与拽拉器连接，牵引循环系统使得主缆沿着猫道方向前进，完成索股牵引；步骤三、对索股进行提升、横移，并对索股进行整形后入鞍；步骤四、完成索股整形入鞍后，利用卷扬机和滑车组分别将两侧锚头向锚碇、锚索管方向牵引，锚头穿过相应的锚索管，并在后锚面上用螺母临时锚固，使得锚头入锚；步骤五、调整基准索股、索股的垂度；步骤六、对索股进行紧缆。本申请能够控制三塔自锚式悬索桥空间主缆，提高了主缆架设效率和精准性，且两幅主缆索股架设通过牵引循环系统即能完成。
Construction method for erecting spatial main cable strand of three-tower self-anchored suspension bridge
一种三塔自锚式悬索桥空间主缆索股架设施工工法
ZHAO JUN (author) / YAO YONGFENG (author) / ZHOU JUE (author) / JIN PING (author) / JIANG HUA (author) / YIN LONGDONG (author) / CHEN DANDAN (author) / ZHOU QIANGSHENG (author) / ZHANG YINGJUAN (author)
2021-11-26
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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