Prestress bridge tension force precision and linearity automatic checking system and checking method thereof

Abstract

The invention relates to a prestressed bridge tensioning force precision and linearity automatic checking system and a checking method thereof. According to the structure of a reaction frame, a guidestand column is arranged between two supporting plates arranged in parallel; a support frame and a jack placing area are arranged in the box body of the reaction frame; a standard sensor is fixedly connected in the support frame; the standard sensor is connected with a digital instrument through a line; the digital instrument is connected with a control conversion system through a circuit; a forcemeasuring sensor is arranged above a jack; the force measuring sensor is connected with automatic tensioning equipment through a circuit; and the jack is connected with a hydraulic station through ahydraulic pipeline. According to the construction system for automatically checking and verifying the tensioning force precision of automatic tensioning equipment for the prestressed tendons of a concrete bridge, a whole inspection process can be quickly and accurately completed in the precision inspection process of the automatic tensioning equipment, and the automatic self-checking of the tensioning force of the tensioning equipment and the linear automatic correction of the sensor are realized, so that the purposes of improving the tensioning precision and the inspection efficiency withoutmanual operation are achieved.

Description

technical field [0001] The invention relates to a checking system, in particular to an automatic checking system and checking method for tension precision and linearity of a prestressed bridge, belonging to the field of bridge construction. Background technique [0002] At present, in the transportation construction of our country, the bridge has occupied an absolute proportion in the length of the line because of its own many advantages. With the application of prestressing technology in modern bridge construction, the quality and performance of the bridge have been greatly improved. Improvement has played an immeasurable role in promoting the development of bridge construction in our country. In the process of prestressing construction, careful design is required to fully utilize prestressing technology in bridge construction and improve its quality and performance. Therefore, bridge prestressing The key process to ensure the safety and durability of bridge structures duri...

AI Technical Summary

Problems solved by technology

The accuracy of the tensioning force during the tensioning process directly affects the construction quality of the bridge. How to ensure the accuracy of the tensioning force value is particularly important. Improving the overall equipment quality stability and sensor accuracy of automatic tensioning equipment is the goal pursued by various manufacturers. The hardware accuracy has also been broken again and again, but a key factor is ignored, which is the detection and inspection link of the automatic tensioning equipment

[0004] The current operation method of the tension confinement test is that when the corresponding data appears at each level, at least two or more people look at the displayed value and record it manually, and then relevant professional and technical personnel are required to perform calculations, and modify the tension display value to the standard as much as possible. For the force value, errors in reading values ​​and recording errors of two people appeared after the period, repeated accuracy calibration and linear correction in the morning, and the calibration rate is low, consuming a lot of time, manpower and material resources

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