Intelligent positioning and line drawing device for vehicle loading wheel position in bridge static load test

Abstract

The invention discloses an intelligent positioning and line drawing device for a vehicle loading wheel position in a bridge static load test. A positioning system comprises a mainboard, a central processing unit is fixed on the mainboard, the input terminal of the central processing unit is connected with a signal transceiver and a CCD camera, the input terminal of the signal transceiver is in signal connection with a remote control hand book, the output terminal of the central processing unit is connected with the input terminal of a stepping motor, and the output terminal of the stepping motor is connected with an infrared distance meter and an electronic goniometer. A line drawing system comprises a pigment storage tank connected with a pigment spraying device, and a cross with a spraying guide groove is fixed to the bottom of the pigment spraying device. When the device is used for positioning and line drawing of the vehicle loading wheel sites in the bridge static load test, the preparation work of the test can be simplified, manpower and material resources are saved, the loading wheel sites are accurately located, the drawn lines are uniform in thickness, standard and tidy, and loading wheel site data can be conveniently stored and repeatedly consulted.

Description

Technical field [0001] The invention belongs to the technical field of bridge detection, and particularly relates to an intelligent positioning and line drawing device for vehicle loading wheel positions in a bridge static load test. Background technique [0002] When the new bridge is completed or the bearing capacity of the old bridge is evaluated, the static load test of the bridge needs to be carried out; according to the static load test procedure, it can be known that the specific loading position of each loaded vehicle needs to be calculated theoretically, that is, the wheel position layout diagram of the loaded vehicle. Then determine the wheel position of the actual loaded vehicle on the bridge, and finally place the weighed loaded vehicle at the corresponding wheel position to detect the deformation of the bridge; usually the bridge static load test generally uses the rear eight wheels (that is, three axles). Medium-sized trucks) are loaded. Although the vehicle brands ...

AI Technical Summary

Problems solved by technology

[0003] Usually, before the formal loading of the bridge static load test, the wheel position of the loaded vehicle is drawn on the bridge surface by using the traditional drawing ruler. Generally, three people are required to operate at the same time to complete this work, that is, two people draw the ruler and the other On-site reading, and draw the wheel position of the loaded vehicle; when this method of drawing lines is used to determine the loading wheel position, it is often because the on-site inspectors have not straightened the tape or steel ruler, and human factors such as reading errors make the actual drawing There is a certain deviation between the wheel position and the wheel position obtained by theoretical calculation, and this deviation is difficult to find and correct in time on the spot; at the same time, the on-site personnel spray paint on the spot to determine the loading vehicle according to the readings of the tape or steel ruler. The position of the wheel position, the value of the drawn position cannot be traced to the source of the value; this traditional method, in addition to the way of drawing the ruler and reading errors and other human factors are difficult to eliminate and trace the source of the value, the amount of paint spraying is also difficult to control, too much paint Not only a waste but also a great impact on the environment

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