Method for detecting automatic detonation hidden danger of glass curtain wall

Abstract

The invention provides a method used for detecting the self-explosion hidden trouble of a glass curtain wall and a device thereof, and relates to a method used for detecting the internal stress of the glass curtain wall and a testing system thereof which are used for predicting the self-explosion hidden trouble of the glass curtain wall. In the method, the stress fringe images of the glass curtain wall are acquired by a refraction photoelastic principle, subsequently image processing and quantitative analysis are carried out on the stress fringe, and the size and the distribution of the stress are obtained, thus correctly estimating the installation stress, internal stress and stress concentration. Therefore, the risk of the self-explosion of the glass curtain wall can be evaluated according to the stress level. The testing system comprises a refraction photoelastic instrument, a movement driving and controlling device, an image recording and transmission device and a computer where the stress analysis and evaluation software is installed. The invention solves the difficult problem of internal stress detection and evaluation of self-explosion hidden trouble of an in-service glass curtain wall, has significance for ensuring the safety of the in-service glass curtain wall, and has wide application prospect.

Description

technical field [0001] The invention relates to the field of material detection, in particular to a method and device for detecting hidden dangers of self-explosion of glass curtain walls in service. Specifically, the stress stripes of the glass curtain wall are obtained by using the principle of refraction photoelasticity, and the internal stress distribution of the glass curtain wall is obtained through the analysis of the stress stripes, so as to judge the self-explosion risk of the glass curtain wall according to the classification standard. Background technique [0002] my country has built a large number of glass curtain wall buildings, most of which are installed with tempered glass as curtain wall glass. In addition, glass bathrooms, glass doors, glass stoves, etc. are all made of tempered glass. The so-called tempered glass is a glass that is heated to a certain temperature and then cooled rapidly, or is specially treated by a chemical method. It is characterized ...

AI Technical Summary

Problems solved by technology

Existing instruments and equipment at home and abroad are mainly used to detect internal impurities of glass or tempered glass that have not left the factory, and some also perform stress analysis, but there is no detection equipment and method for glass curtain walls on high-rise buildings.

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