Balancing device and method for asymmetric stress cantilever beam: Fid-Bau Portal

Balancing device and method for asymmetric stress cantilever beam

XUE WUQIANG / SUN JIUCHUN / WANG HAITAO

The invention belongs to the technical field of bridge construction, and discloses a balancing device and method for an asymmetrically stressed cantilever beam, the balancing device comprises a pressure detection device, a tensioning device and a control device, the pressure detection device is arranged between a supporting leg of hoisting equipment and the cantilever beam, and the control device can receive a transmission signal of the pressure detection device; the tensioning device comprises a tensile bundle, a tensioning mechanism and a cable force dynamic tester, the tensioning mechanism comprises a support, a jack, a nut assembly and a tightening assembly, the jack, the nut assembly and the tightening assembly are connected with the support, and tension can be applied to the tensile bundle so as to be transmitted to the cantilever beam for balancing. According to the balancing method of the asymmetrically stressed cantilever beam, the jack, the nut assembly and the tightening assembly are matched, a pulling beam can be tensioned for multiple times, the situation that an axial force servo system which is very difficult to control is used for assisting in balancing the cantilever beam is avoided, the construction cost is reduced, the control difficulty of engineering operation is lowered, and the construction safety is guaranteed; and the construction efficiency is greatly improved.

本发明属于桥梁建造技术领域，公开了一种非对称受力悬臂梁的平衡装置及方法，包括压力检测装置、张拉装置和控制装置，压力检测装置设置在吊装设备的支腿与悬臂梁之间，控制装置能够接收压力检测装置的传输信号，张拉装置包括抗拉束、张拉机构和索力动测仪，张拉机构包括支座以及与支座连接的千斤顶、螺母组件和拧紧组件，能够对抗拉束施加拉力以传递至悬臂梁进行平衡。非对称受力悬臂梁的平衡方法，通过千斤顶、螺母组件和拧紧组件配合，可以对抗拉束进行多次张拉，避免了使用控制十分困难的轴力伺服系统辅助进行对悬臂梁的平衡，减少了施工成本，降低了工程作业的控制难度，保证了施工安全，大大提高了施工效率。

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