GB/T 39525-2020Test method for the fastening degree of glass curtain wall panel (English PDF)

1 Scope

This standard specifies the testing principles, classification, testing equipment, testing procedures, result determination and testing methods for the testing methods of glass curtain wall panels:

Inspection report:

This standard applies to on-site testing of the firmness of frame-supported glass curtain wall panels:

2 Normative references

The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article

Pieces: For undated references, the latest version (including all amendments) applies to this document:

GB/T 34327 Terminology for building curtain walls

3 Terms and definitions

The following terms and definitions defined in GB/T 34327 apply to this document:

3:1

Fastening degree of panel

The reliability of the connection between the glass curtain wall panel and its supporting system:

3:2

Panel acceleration frequency response function frequencyresponsefunctionofpanelacceleration

The amplitude of the acceleration response of the glass curtain wall panel at different frequencies under the hammering load:

3:3

Reference acceleration frequency response function referencefrequencyresponsefunctionofpanelacceleration

Acceleration frequency response function of glass curtain wall panel under non-damage conditions:

3:4

Panel dynamic characteristics paneldynamiccharacteristics

The natural vibration period, mode shape and damping ratio inherent in the glass curtain wall panel itself:

3:5

Naturalfrequency

When the glass curtain wall panel vibrates freely, the number of vibrations per unit time:

Note: The natural frequency has nothing to do with the initial conditions, but only with the inherent characteristics of the object (such as quality, shape, material and boundary conditions, etc:):

3:6

Fundamentalfrequency

The first natural frequency of the glass curtain wall panel:

3:7

Sampling frequency

The number of data points collected per unit time: