1、Designation: E580/E580M 14E580/E580M 16Standard Practice forInstallation of Ceiling Suspension Systems for AcousticalTile and Lay-in Panels in Areas Subject to EarthquakeGround Motions1This standard is issued under the fixed designation E580/E580M; the number immediately following the designation in
2、dicates the yearof original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies
3、of the U.S. Department of Defense.1. Scope*1.1 This practice covers the installation of suspended systems for acoustical tile and lay-in panels and their additionalrequirements for two groups of buildings that are constructed to resist the effects of earthquake motions as defined byASCE 7 andthe Int
4、ernational Building Code. These groupings are for Seismic Design Category C and Seismic Design Categories D, E and F.1.2 The authority having jurisdiction shall determine the applicability of this practice.1.3 Specification C635 and Practice C636 cover suspension systems and their installation witho
5、ut special regard to seismiclateral restraint needs. They remain applicable and shall be followed when this practice is specified.1.4 Ceilings less than or equal to 144 square feet and surrounded by walls connected to the structure above are exempt fromthe requirements of this practice.1.5 This prac
6、tice is not intended to stifle research and development of new products or methods. This practice is not intendedto prevent the installation of any material or prohibit any design or method of construction not prescribed in this practice, providedthat any such alternative has been substantiated by v
7、erifiable engineering data or full-scale dynamic testing that is acceptable tothe authority having jurisdiction.1.6 Ceiling areas of 1000 ft2 92.9 m2 or less shall be exempt from the lateral force bracing requirements of 5.2.8.1.7 Ceilings constructed of gypsum board which is screw or nail attached
8、to suspended members that support a ceiling on onelevel extending from wall to wall shall be exempt from the requirements of this practice.1.8 Free floating ceilings (those not attached directly to any structural walls) supported by chains or cables from the structureare not required to satisfy the
9、seismic force requirements provided they meet the following requirements:1.8.1 The design load for such items shall equal 1.4 times the vertical operating weight.1.8.2 Seismic interaction effects shall be considered in accordance with 5.7.1.8.3 The connection to the structure shall allow a 360 range
10、 of motion in the horizontal plane.1.9 The values stated in either inch-pound or SI units are to be regarded as standard. Within the text, the SI units are shownin brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of theother. Co
11、mbining values from the two systems result in nonconformance with the specification.1.10 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices an
12、d determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:21 This practice is under the jurisdiction of ASTM Committee E33 on Building and Environmental Acoustics and is the direct responsibility of Subcommittee E33.04 onApplication of Acoustical M
13、aterials and Systems.Current edition approved Jan. 15, 2014Oct. 1, 2016. Published March 2014November 2016. Originally approved in 1976. Last previous edition approved in 20112014as E580 11b.E580/E580M 14. DOI: 10.1520/E0580_E0580M-14.10.1520/E0580_E0580M-16.2 For referencedASTM standards, visit the
14、ASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an
15、indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to
16、be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1C635 Specification for the Manufacture, Performance, and Testing of Metal Suspension
17、Systems for Acoustical Tile and Lay-inPanel CeilingsC636 Practice for Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels2.2 Other Standards:ASCE 7 Minimum Design Loads for Buildings and Other Structures3CISCA Recommendations for Direct-hung Acoustical Tile and Lay
18、in Ceilings, Seismic Zones 0-24CISCA Guidelines for Seismic Restraint for Direct Hung Suspended Ceiling Assemblies, Seismic Zones 3 earthquake; seismic; seismic restraint; suspended ceilingAPPENDIX(Nonmandatory Information)X1. COMMENTARYX1.1 Recommendations in previous versions of this practice wer
19、e based in part on testing done in the 1980s. This, coupled withgeneral observations from the earthquake prone areas in California have lead to the original practice.X1.2 Actual earthquake experience (most notably Northridge and Loma Prieta earthquakes) has shown that three main things arecritical f
20、or good performance of ceiling systems during earthquakes which are:X1.2.1 Independent safety wires on light fixtures to prevent dropout,X1.2.2 Minimum strength requirements for splices and cross/runner/main runner intersections, andX1.2.3 Spreader bars and independent support of suspension member t
21、erminal ends at wall closures which prevent panel dropoutif the perimeter suspension terminal end slips off of the closure support ledge.E580/E580M 1610X1.3 These observations have lead to the requirement for safety wires on light fixtures and minimum connection strengths inPractice E580/E580M. This
22、 also led to the requirement for 2-in. 50 mm perimeter support ledger and the requirement forindependent support of terminal ends of suspension members.X1.4 Advent of International Building Code has raised the awareness of seismic installation requirements in areas within theUnited States where thes
23、e requirements traditionally were not a concern.X1.5 The introduction of non-traditional ceiling made of wood and metal, as well as ceilings that do not use traditional tee barsuspension systems, has lead to a need for an expansion of the prescriptive installation requirements. There has been also a
24、 generalconcern over the interaction of the ceiling system with HVAC components, lights and sprinklers. This coupled with the comingof next generation of performance based seismic codes has lead to new interest in clear and concise requirements for installationof ceiling systems. The result is this
25、current rewrite of this practice.SUMMARY OF CHANGESCommittee E33 has identified the location of selected changes to this standard since the last issue(E580/E580ME580/E580M 1411b) that may impact the use of this standard. (Approved Oct. 1, 2016January15, 2014).)(1) Fig. 4Revised 4.1.1was revised. .(2
26、) New Fig. 5, Fig. 6, and Fig. 7 were added.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and
27、 the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments are invited either for revision
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29、ldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtai
30、ned by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 1611
