Suspension bridge main cable strand traction control system and method

Abstract

The invention relates to the technical field of suspension bridge main cable erection, in particular to a suspension bridge main cable strand traction control system and method. The suspension bridge main cable strand traction control system comprises a traction device, a torsion monitoring sensor and a torsion correction mechanism. Wherein the traction device comprises a traction rope and a pulling device, and the pulling device is arranged on the traction rope and used for pulling the main cable strand; the torsion monitoring sensor is used for being arranged on the main cable strand close to the pulling device or arranged on the pulling device so as to monitor the posture of the main cable strand; and the torsion correcting mechanism is arranged on the puller and used for applying reverse torque in the torsion direction when the main cable strand is twisted according to the posture of the main cable strand so as to keep the puller balanced. The problems that in the prior art, due to transverse external wind disturbance, a puller and a main cable strand are twisted, the bearing capacity of a main cable is reduced, and the safety of the puller is affected can be solved.

Description

technical field [0001] The invention relates to the technical field of suspension bridge main cable erection, in particular to a suspension bridge main cable strand traction control system and method. Background technique [0002] In recent years, bridge construction has gradually shifted from inland bridges to sea-crossing and mountain-crossing bridges in oceans and mountains. The suspension bridge has become one of its main forms due to its excellent spanning ability. Under complex geological conditions, the difficulty of traction and erection of the main cable strand during the construction of the suspension bridge increases sharply, and its quality will directly affect the bearing capacity of the completed bridge and the health and safety of construction and operation and maintenance. [0003] At present, the strands of the main cable mainly rely on the traction system to complete the erection. The traditional traction system is mainly adjusted manually during the const...

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Problems solved by technology

[0006] Aiming at the defects existing in the prior art, the object of the present invention is to provide a traction control system and method for the main cable strands of a suspension bridge, which can solve the problem that the puller and the main cable strands will be twisted due to lateral external wind disturbance in the prior art, resulting in Reduced bearing capacity of the main cable and issues affecting the safety of the puller

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