Prestress tensioning control system

Abstract

The invention discloses a prestress tensioning control system, and belongs to the technical field of tensioning. The system comprises a master tensioning machine and a slave tensioning machine, wherein each of the master tensioning machine and the slave tensioning machine comprises a control unit, a feedback unit, a mechanical unit, a power unit, an execution unit and a wireless communication module; each power unit comprises a motor, a pump head and a valve bank, wherein each pump head is soaked in an oil tank of the corresponding mechanical unit and driven by the corresponding motor, each motor controls the rotating speed through a frequency converter, and each pump head is provided with an oil outlet and connected with the corresponding valve bank through the corresponding mechanical unit; each execution unit comprises a jack and a digital displacement pressure sensor; and each digital displacement pressure sensor, each frequency converter and each wireless communication module areall connected with the corresponding control unit.

Description

technical field [0001] The invention relates to the technical field of tensioning, in particular to a prestressed tensioning control system. Background technique [0002] The tension control system used in traditional tension construction only includes start-up circuit, pump station, and pressure display equipment. During the construction process, it is necessary to rely on the operator to manually open the pump station, and then judge whether the tension is completed by observing the pressure display device. This construction method has problems such as low tension control precision, poor stability, and large elongation measurement error. In addition, during the stretching process of the bridge, both ends need to be stretched simultaneously. In traditional stretching construction, operators at both ends generally coordinate through radio intercom, and it is difficult to achieve simultaneous stretching at both ends. Contents of the invention [0003] Aiming at the proble...

AI Technical Summary

Problems solved by technology

This construction method has problems such as low tension control accuracy, poor stability, and large elongation measurement error.

In addition, during the tensioning process of the bridge, both ends need to be stretched simultaneously, while in traditional tensioning construction, operators at both ends generally coordinate through radio intercom, and it is difficult to achieve simultaneous tensioning at both ends

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