Building curtain wall safety state remote detection method based on laser vibration measurement technology

Abstract

The invention provides a building curtain wall safety state remote detection method based on a laser vibration measurement technology, and belongs to the technical field of building curtain wall safety detection. The method comprises the following steps: firstly, setting a laser vibration measurement signal acquisition system; then selecting curtain wall panels with the same specification and goodquality condition for testing, performing fast Fourier transform (FFT) on vibration time domain signals to obtain a vibration spectrogram of the tested components, and taking the obtained data as reference data; carrying out testing and FFT conversion on other curtain wall panels to be tested, comparing obtained results with the reference data, and comprehensively evaluating the safety states ofthe curtain wall panels according to comparison results; and finally, carrying out multi-point test on the tested panels, and preliminarily judging damaged (loosened or degummed) parts according to the spectrum curve peaks at different test points. According to the method, remote and rapid detection can be realized, and the detection cost and the operation risk can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of safety detection of building curtain walls, in particular to a method for remote detection of the safety status of building curtain walls based on laser vibration measurement technology. Background technique [0002] At present, there are many methods for detecting the safety status of building curtain walls at home and abroad, but there is no report on the remote detection method of building curtain wall safety status based on laser vibration measurement technology. [0003] The building curtain wall is composed of a supporting structure system and panels, which can have a certain displacement capacity relative to the main structure, and is a building peripheral structure or decorative structure that does not share the effects of the main structure. According to different panel materials, architectural curtain walls can be divided into glass curtain walls, stone curtain walls and alloy curtain walls. Du...

AI Technical Summary

Problems solved by technology

The current methods for detecting the safety status of curtain walls mainly include: visual inspection, manual testing, and vibration sensor methods. Visual inspection and manual testing require operators to approach the detection object by climbing and other means, and the detection results are subject to the personal experience of the testing personnel. Greater impact

The vibration sensor method has little practical application value due to the difficulty of installing the sensor, the need for additional excitation, and the additional mass also has a great impact on the detection results.

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