Standard Test Methods for Strength Properties of Metal Ceiling Suspension Systems

Importancia y uso:

4.1 Load Carrying Capacity: 

4.1.1 Most architectural specifications contain a uniform load requirement based on Specification C635. Additionally, it is useful to know the uniform loads of cross runners to evaluate their suitability for various ceiling loads.

4.1.2 The procedure detailed in this standard is intended to be used for the simple 4 ft span specified in Specification C635 but it can be used for simple spans other than 4 ft.

4.1.3 Various concentrated load combinations can be similarly tested or they can be calculated from the uniform load results by engineering analysis.

4.2 Connection Strength in Tension and Compression: 

4.2.1 Structural failure of grid systems under axial loading is controlled by the failure of connections between the grid members. Specification of the allowable axial loads is useful for designers and specifiers for determining which grid systems will be appropriate for specific job conditions.

4.2.2 Connection strength is particularly important where the grid installation is expected to experience lateral loads due to earthquake or wind.

4.2.3 Connection strength in both compression and in tension are specified in Practice E580 as mean ultimate test load in tension and in compression.

Subcomité:

E33.04

Referida por:

E3118_E3118M-22, C0635_C0635M-22, C1858_C1858M-24, C0634-22, E0580_E0580M-24

Volúmen:

04.06

Número ICS:

91.120.20 (Acoustics in building. Sound insulation)

Palabras clave:

ceiling suspension mechanical properties; connection strength in compression; connection strength in tension; load carrying capacity;