Bridge erecting machine bearing performance rapid detection device and evaluation method

Abstract

The invention provides a bridge girder erection machine bearing performance rapid detection device and an evaluation method. The detection device comprises a double-layer frame, a standard counterweight, a distance measurement module, an operation module, a storage module and a storage battery. Wherein the distance measurement module comprises a circuit controller, a laser emission unit, a photoelectric conversion unit, a phase identification unit and a distance calculation unit; the standard counterweight is mounted on the upper layer of the frame; the distance measuring module is installed on the lower layer of the frame and used for determining the real-time distance between a crown block and a bridge floor through laser phase changes under carrying of the crown block moving at the constant speed. Carrying out bearing performance calculation on data of the distance measurement module by adopting a processor, carrying out real-time displacement and bearing performance data instant storage by adopting a cache unit, and fixing an operation module and a storage module at the top of the distance measurement module; all the devices are powered by the storage battery. According to the invention, the test module, the counterweight module, the calculation module, the power supply module and the like are integrated, the convenience of the detection process can be greatly improved, the misoperation probability of the detection process is reduced, and the reliability of the evaluation result of the bearing performance of the bridge girder erection machine is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of detection of large-scale construction machinery, and in particular relates to a rapid detection device and evaluation method for the load-carrying performance of a bridge-erecting machine, which is suitable for rapid on-site evaluation of the load-carrying performance of the bridge-erecting machine before hoisting. Background technique [0002] The bridge erecting machine is a special construction machine for hoisting prefabricated reinforced concrete beams on bridge supports. Low speed, heavy load, large span and complex structure are the salient features of the bridge erecting machine. Today, the amount of bridge construction is still increasing, once the bridge erecting machine breaks down or accidents, it will cause casualties and huge economic losses, even catastrophic consequences. Under the special construction environment and construction conditions, the stability and safety of the overall struct...

AI Technical Summary

Problems solved by technology

This test evaluation method needs to set loading conditions different from the working conditions, which is time-consuming and expensive, and it is not easy to carry out in real time on the construction site environment, and the evaluation standard of load-carrying performance is not very clear, and the test results often have differences with the construction site application. The rapid assessment of the bearing capacity of the bridge erecting machine forms a clear and systematic assessment method

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