Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pre-biasing system and pre-biasing method for suspension bridge steel main tower
The invention belongs to the technical field of suspension bridge upper structure construction, and particularly relates to a suspension bridge steel main tower pre-deflection system and method. A suspension bridge steel main tower pre-deflection system comprises a tower top mark point, a tower top anchoring end, a pre-deflection inhaul cable, an anchorage anchoring end, a pushing device and a measuring device, the tower top mark point is located on the tower top of a steel main tower, the tower top anchoring end comprises an anchoring base and a tower end distribution beam, and the anchorage anchoring end comprises an adjusting cross beam, an adjusting screw rod and an anchorage embedded part. One end of the pre-bias inhaul cable is fixedly connected with the middle of the tower end distribution beam, the other end of the pre-bias inhaul cable is fixedly connected with the middle of the adjusting cross beam, the pushing device is located on the adjusting screw and comprises a center hole jack and an external controller, the telescopic end of the center hole jack makes contact with the adjusting cross beam, and the measuring device comprises an industrial camera and a non-contact microwave radar cable force meter. The tower top deviation and the cable force change of the pre-deviation inhaul cable are automatically monitored in real time through the measuring device, the external controller controls the pushing device to continuously stretch the pre-deviation inhaul cable, and deviation control over the tower top of the steel main tower is achieved.
本发明属于悬索桥上部结构施工技术领域，特别涉及一种悬索桥钢主塔预偏系统及预偏方法。一种悬索桥钢主塔预偏系统，包括塔顶标记点，塔顶锚固端、预偏拉索、锚碇锚固端、顶推装置和测量装置，塔顶标记点位于钢主塔的塔顶，塔顶锚固端包括锚固座和塔端分配梁，锚碇锚固端包括调节横梁、调节螺杆和锚碇预埋件，预偏拉索一端与塔端分配梁中部固定连接，另一端与调节横梁中部固定连接，顶推装置位于调节螺杆上，包括穿心千斤顶和外置控制器，穿心千斤顶的伸缩端与调节横梁相接触，测量装置包括工业相机和非接触式微波雷达索力计。本发明通过测量装置实时自动监测塔顶偏位与预偏拉索索力变化，外置控制器控制顶推装置持续张拉预偏拉索，实现钢主塔塔顶的偏位控制。
Pre-biasing system and pre-biasing method for suspension bridge steel main tower
The invention belongs to the technical field of suspension bridge upper structure construction, and particularly relates to a suspension bridge steel main tower pre-deflection system and method. A suspension bridge steel main tower pre-deflection system comprises a tower top mark point, a tower top anchoring end, a pre-deflection inhaul cable, an anchorage anchoring end, a pushing device and a measuring device, the tower top mark point is located on the tower top of a steel main tower, the tower top anchoring end comprises an anchoring base and a tower end distribution beam, and the anchorage anchoring end comprises an adjusting cross beam, an adjusting screw rod and an anchorage embedded part. One end of the pre-bias inhaul cable is fixedly connected with the middle of the tower end distribution beam, the other end of the pre-bias inhaul cable is fixedly connected with the middle of the adjusting cross beam, the pushing device is located on the adjusting screw and comprises a center hole jack and an external controller, the telescopic end of the center hole jack makes contact with the adjusting cross beam, and the measuring device comprises an industrial camera and a non-contact microwave radar cable force meter. The tower top deviation and the cable force change of the pre-deviation inhaul cable are automatically monitored in real time through the measuring device, the external controller controls the pushing device to continuously stretch the pre-deviation inhaul cable, and deviation control over the tower top of the steel main tower is achieved.
本发明属于悬索桥上部结构施工技术领域，特别涉及一种悬索桥钢主塔预偏系统及预偏方法。一种悬索桥钢主塔预偏系统，包括塔顶标记点，塔顶锚固端、预偏拉索、锚碇锚固端、顶推装置和测量装置，塔顶标记点位于钢主塔的塔顶，塔顶锚固端包括锚固座和塔端分配梁，锚碇锚固端包括调节横梁、调节螺杆和锚碇预埋件，预偏拉索一端与塔端分配梁中部固定连接，另一端与调节横梁中部固定连接，顶推装置位于调节螺杆上，包括穿心千斤顶和外置控制器，穿心千斤顶的伸缩端与调节横梁相接触，测量装置包括工业相机和非接触式微波雷达索力计。本发明通过测量装置实时自动监测塔顶偏位与预偏拉索索力变化，外置控制器控制顶推装置持续张拉预偏拉索，实现钢主塔塔顶的偏位控制。
Pre-biasing system and pre-biasing method for suspension bridge steel main tower
一种悬索桥钢主塔预偏系统及预偏方法
MA JIANYONG (Autor:in) / LI SIRUN (Autor:in) / SU YANG (Autor:in) / YUAN HAOYUN (Autor:in) / ZHAO XIAOYU (Autor:in)
06.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken