Intelligent pre-stress inhaul cable nut and pre-stress monitoring method

Abstract

The invention discloses an intelligent pre-stress inhaul cable nut and a pre-stress monitoring method. The intelligent pre-stress inhaul cable nut comprises an inhaul cable nut, wherein a plurality ofstrain sensors are arranged on the inhaul cable nut; and each strain sensor comprises a measuring section which generates consistent deformation with the inhaul cable nut, and a sensitive element which is arranged on the measuring section. According to the intelligent pre-stress inhaul cable nut disclosed by the invention, the strain sensors are arranged on the inhaul cable nut, and each strain sensor comprises the measuring section which generates consistent deformation with the inhaul cable nut, and the sensitive element which is arranged on the measuring section; after a cable body is anchored, all stress of a steel strand is transmitted to the pre-stress inhaul cable nut; the sensors and the inhaul cable nut are integrally designed, so that a cable body stress condition is obtained bymonitoring the inhaul cable nut; compared with an existing steel strand sampling measurement way, the stress condition of the whole cable body can be reflected more really; and moreover, the intelligent pre-stress inhaul cable is convenient to use and mount, and can greatly save measuring and mounting time.

Description

technical field [0001] The invention relates to the field of prestressed anchors, in particular to an intelligent prestressed cable nut and a prestressed monitoring method. Background technique [0002] Prestressed anchor cables include steel wire ropes, steel rods, steel strands and other structures. They often use the cable nuts of prestressed anchors to transmit force. They are widely used in concrete prestressed tendons, bridge cables or slings, rock and soil Anchor cables and other construction engineering structures. Cable body tension anchoring requires cable nuts for force transmission, and cable force monitoring is often required during the tensioning process. In addition, because the cable body is easily affected by the surrounding environment, corrosion and rust occur, and prestress loss occurs, which in turn affects its working performance and negatively affects the normal use and safe operation of the building. Therefore, long-term real-time monitoring of the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an intelligent cable monitoring method for monitoring the stress on the cable body. The current method of sampling and measuring steel strands cannot truly reflect the stress on the entire cable body, and the cumbersome and time-consuming process of measuring and installing. The prestressed cable nut, through the integrated design of the sensor and the cable nut, can monitor the cable nut to obtain the force status of the cable body. Compared with the existing sampling measurement method, it can more truly reflect The force situation of the whole cable body, and easy to use and install, can greatly save the measurement and installation time

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