Bridge erecting machine beam falling deviation monitoring system and method

Abstract

The invention relates to the technical field of bridge erecting, and particularly relates to a bridge erecting machine beam falling deviation monitoring system. The bridge erecting machine beam falling deviation monitoring system comprises a first measuring mark, a second measuring mark, a third measuring mark, an industrial camera and a processor, wherein the processor is used for collecting testdata of the industrial camera, establishing a first space rectangular coordinate system through the first measuring mark and establishing a second space rectangular coordinate system through the second measuring mark according to the test data, converting initial three-dimensional coordinates of the third measuring mark in the second space rectangular coordinate system into final three-dimensional coordinates of the third measuring mark in the first space rectangular coordinate system, and comparing the final three-dimensional coordinates with a design value to obtain a deviation value. According to the bridge erecting machine beam falling deviation monitoring system, the second measuring mark is arranged and can play a transition role when the first measuring mark is shielded by a to-be-erected beam sheet, the three-dimensional coordinates of the third measuring mark in the first space rectangular coordinate system are obtained, meanwhile, the deviation rectifying effect is achieved,the measuring error caused by deviation of the industrial camera can be effectively eliminated, and therefore accurate beam falling is achieved.

Description

technical field [0001] The present disclosure relates to the technical field of bridge erecting, and in particular to a monitoring system for beam deviation of a bridge erecting machine. Background technique [0002] Most of the prestressed concrete simply supported box girders of my country's high-speed railways are prestressed concrete simply supported box girders of 24m, 32m and 40m prefabricated by beam yards, and are constructed in the form of on-site erection by bridge erecting machines. The bridge erecting machine is divided into two types according to the form of frame transport, the frame transport split machine and the frame transport integrated machine. This design is mainly for the frame transport split machine design. [0003] The current method of transporting split frame beams is divided into the following steps: (1) After erecting the last beam, the bridge erecting machine moves to the next hole and puts it in place, and the beam transporter returns to the be...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned process of beam feeding, beam falling, and precise alignment, each step requires personnel to measure the position information of the beam body with the naked eye or with a ruler, and report the relevant information to the operator of the bridge erecting machine. The beam falling process takes a long time, and the monitoring personnel and operators interact and communicate frequently, requiring a large number of coordinating personnel, and the efficiency of beam erection is not high

At the same time, the accuracy of falling beams is not high

Multiple personnel are distributed up and down the beam body, posing potential safety hazards

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