Intelligent vibrating device and method for concrete precast component

Abstract

The invention relates to an intelligent vibrating device and method for a concrete precast component. The method comprises the following steps that vibrators are arranged on the outer surface of a formwork of the precast component at intervals; the vibrators are started, and initial excitation signals are obtained; initial response signals of the inner surface of the formwork of the precast component are collected; a transfer function is established; and in the vibrating process, real-time response signals of the concrete surface are collected, excitation parameters at the next moment are calculated through the real-time response signals and the transfer function so as to control operation of the vibrators, the transfer function is updated through the real-time response signals and current excitation signals, and the step is repeated until vibration is accomplished. According to the intelligent vibrating device and method, the excitation parameters of the vibrators are continuously adjusted according to the vibration response signal feedback of the concrete in the vibrating process, the excitation frequencies provided by the vibrators can be close to the inherent frequency of the aggregate of the concrete, the vibration attenuation is reduced at the moment, the amplitude is increased, and the vibration effect is improved.

Description

technical field [0001] The invention relates to the technical field of production of concrete prefabricated components, in particular to an intelligent vibrating device and method for concrete prefabricated components. Background technique [0002] Vibration method is a key link in the quality control of concrete pouring, and a standardized construction process for concrete vibration should be established. However, traditional concrete vibration quality control mainly relies on construction experience, and it is impossible to finely control vibration according to different mix ratios and aggregate gradations, and local vibration leakage, under vibration or over vibration may occur due to irregular construction techniques and other phenomena, thereby affecting the quality of concrete. [0003] At present, the concrete vibration parameters of prefabricated box girders and T-beams in highway engineering are usually determined by experience or a few simple tests. Due to the lac...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, provide an intelligent vibrating device and method for concrete prefabricated components, and solve the problems of vibrating efficiency and vibrating efficiency due to the lack of intuitive quantitative standards in the existing vibrating parameters determined by experience or simple tests. Problems with situations where performance is not as expected

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