Assembled Anchor Cable Dynamometer and Its Application Method

Abstract

The invention relates to an assembly type anchor cable dynamometer and a use method. Three sets of measuring systems are distributed along the radial direction in an elastic body at a 120 degree angle. Each set of measuring system comprises two steel strings, an induction solenoid, an excitation solenoid and an electromagnetic converter apparatus. The assembly type anchor cable dynamometer is characterized in that the steel string is fixed in an arc-shaped elastic body, the steel strings, the induction solenoids and the electromagnetic converters in the elastic body are connected with an electronic display screen to form an enclosed circuit, induced-current in the induction solenoid enhances the magnetic field intensity of the excitation coil to maintain continuous vibration of the steel string, the electromagnetic converter apparatus converts mechanical frequency of the steel strings into electric signal frequency, detection data is displayed on the display screen, and a protective end cap is in threaded connection with the elastic body to prevent water and moisture. The assembly type anchor cable dynamometer is easy to install and dismount, the measuring structure is high in precision, and data can be acquired at any time. The assembly type anchor cable dynamometer is convenient for application of anchoring and monitoring engineering in the field of bridge, slope and water conservancy.

Description

technical field [0001] The invention relates to an assembled anchor cable dynamometer and a using method. It mainly involves the monitoring of anchor cable force in the fields of bridges, slopes and water conservancy. Background technique [0002] In the application of anchor cable force measurement in the fields of bridges, slopes and water conservancy, especially in bridge projects such as cable-stayed bridges, suspension bridges, and hanger arch bridges, the tension of the hanger is determined by the hydraulic pressure of the jack only by the oil pressure gauge. The measurement is not perfect, because the precision of the oil pressure gauge is not high enough, and it is prone to failure. In addition, the internal frictional resistance of the jack varies with the degree of wear and the magnitude of the tension, so the measurement results are inaccurate. Therefore, once something happens to the oil pressure gauge or the jack, the accuracy of the monitoring results of the ...

AI Technical Summary

Problems solved by technology

However, in the specific construction and post-monitoring process, there are many inconveniences in the application of the steel string ring anchor cable dynamometer: when testing the cable force of the suspension structure, it is difficult to quickly, accurately and conveniently install the anchor between the jack and the support plate Cable dynamometer; the display method using cables and electronic measuring instruments has strict requirements on the monitoring position and construction environment; when the measurement accuracy of the anchor cable dynamometer decreases or is damaged, it is inconvenient to replace and the cost is high

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