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Significance and Use
4.1 Load Carrying Capacity:
4.1.1 Most architectural specifications contain a uniform load requirement based on Specification . 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 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 as mean ultimate test load in tension and in compression.
1.1 These test methods cover metal ceiling suspension systems used primarily to support acoustical tile, acoustical lay-in panels, or suspended T-bar type ceiling systems.
1.2 These test methods cover the determination of strength properties of suspended ceiling grid system components as follows:
Load Carrying Capacity
Connection Strength in Tension
Connection Strength in Compression
Wire Pullout Resistance
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.4 The following safety hazards caveat pertains only to the test methods described in this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C634 Terminology Relating to Building and Environmental Acoustics
C635 Specification for Manufacture, Performance, and Testing of Metal Suspension Systems for Acoustical Tile and Lay-in Panel Ceilings
E580 Practice for Installation of Ceiling Suspension Systems for Acoustical Tile and Lay-in Panels in Areas Subject to Earthquake Ground Motions
E631 Terminology of Building Constructions
ICS Number Code 91.120.20 (Acoustics in building. Sound insulation)
UNSPSC Code 30161604(Suspended ceiling systems)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM E3090 / E3090M-19, Standard Test Methods for Strength Properties of Metal Ceiling Suspension Systems, ASTM International, West Conshohocken, PA, 2019, www.astm.orgBack to Top