A test method for wind pressure resistance performance of film-coated glass

Abstract

A test method for wind pressure resistance performance of filmed glass, the steps are as follows: Step 1, confirm that the curtain wall test piece meets the design requirements; Hit the central part of the glass, semi-tempered or ordinary glass should be scratched with a glass knife in the middle of the glass, the crack length should not be less than 200mm; step 3, repeated pressure testing, the test pressure difference is averaged at 0.4 times the design wind load standard value Value, with 1 / 4 of the average value as the amplitude, carry out positive and negative pressure fluctuation detection, the fluctuation pressure cycle is 5s ~ 7s, and the number of fluctuations is not less than 10 times. This method is a test method for evaluating the wind pressure resistance performance of filmed glass after it is broken. It clearly puts forward the concept and test method of the residual wind pressure resistance strength of filmed glass after it is broken, which is beneficial to the safety performance of filmed glass after it is broken. Quantitative evaluation.

Description

technical field [0001] The invention relates to a test method for evaluating the safety performance of a film-attached glass after being broken, in particular to a test method for testing the wind pressure resistance of the film-attached glass within a short time after being broken. Background technique [0002] At present, the on-site film technology for architectural glass has been developed to a certain extent. The architectural glass film products have been relatively perfect, and a series of product standards have been formulated, but there are still many problems. The most important thing is the safety of the film project. It has not been fully studied. For example, the main purpose of the film is to prevent the "unscheduled" shedding of the tempered glass after it is broken. However, how much wind pressure can the film tempered glass withstand after it is broken, and how does the edge structure affect the safety of the film glass? and other issues are lack of in-depth...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a test method for the wind pressure resistance performance of the filmed glass, to solve the technical problem that the existing evaluation of the wind pressure resistance performance of the filmed glass in a complete state cannot reflect the safety performance of the filmed glass after it is broken