Prestress single-lug pull rope and tension method for same

Abstract

The invention provides a prestress single-lug pull rope which comprises a rope body, a steel wire rope core, a lining pipe layer, air drying equipment, a steel wire casing layer, anchor tools, multiple humidity sensors and a controller, wherein the lining pipe layer is disposed on the outer layer of the steel wire rope core; the air drying equipment is connected to an air inlet; the anchor tools are disposed on two ends of the rope body; the humidity sensors are disposed on the inner wall of the lining pipe layer at intervals; and the controller is connected to the air drying equipment and the humidity sensors. The tension method of the prestress single-lug pull rope comprises the steps that (1) one end of the steel wire rope core is fixed, the other end is clamped on a movable end, and a displacement sensor is disposed near the steel wire rope; and (2) the steel wire rope core is tensioned till the length of the tensioned steel wire rope core sensed by the displacement sensor is equal to a preset value. According to the invention, materials are saved as a whole; cost is reduced; rope body weight is reduced; rope body wind resistance is reduced; overall safety is enhanced; and the pull rope is protected from wind and rain induced vibration.

Description

technical field [0001] The invention belongs to the technical field of prestressing, in particular to a prestressing single ear cable and a stretching method thereof. Background technique [0002] With the advancement of science and technology, prestressing technology is also developing and maturing, and its application fields are becoming more and more extensive. The prestressing technology in the existing technology has gradually exposed many defects, such as bulky construction, inconvenient installation, poor anti-corrosion performance, difficult detection, etc. These unfavorable factors hinder the further promotion of prestressing technology, which directly affects the application field construction quality and service life. [0003] The traditional anti-corrosion of steel strands is realized by oiling itself and wrapping the PE layer or galvanizing the steel strands. The former has to wrap PE layers on the outside of each steel strand, resulting in the cross-section of...

AI Technical Summary

Problems solved by technology

The prestressing technology in the existing technology has gradually exposed many defects, such as bulky construction, inconvenient installation, poor anti-corrosion performance, difficult detection, etc. These unfavorable factors hinder the further promotion of prestressing technology, which directly affects the application field construction quality and service life

[0003] The traditional anti-corrosion of steel strands is realized by oiling itself and wrapping the PE layer or galvanizing the steel strands. The former has to wrap PE layers on the outside of each steel strand, resulting in the cross-section of the entire cable body As the area becomes larger, the resistance and vibration will also increase, which will have a great impact on the results of the bridge. It will also easily cause accidents while reducing the life of the bridge. The latter is coated with a zinc layer outside the steel strands, which undoubtedly increases the cost. After a long time, affected by the environment, the zinc layer will also rust after corrosion, and the problem of anticorrosion has not been solved in essence.

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