ASTM E580 E580M-2009 923 Standard Practice for Installation of Ceiling Suspension Systems for Acoustical Tile and Lay-in Panels in Areas Subject to Earthquake Ground Motions.pdf

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1、Designation: E 580/E 580M 09Standard 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 E 580/E 580M; the number immediately following the designation indicates t

2、he 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 of the De

3、partment of Defense.1. Scope1.1 This practice covers installation of suspended ceilingsystems and their additional requirements for two groups ofbuildings that are constructed to resist the effects of earthquakemotions as defined by ASCE 7 and the International BuildingCode. These groupings are for

4、Seismic Design Category C andSeismic Design Categories D, E and F.1.2 The authority having jurisdiction shall determine theapplicability of this practice.1.3 Specification C 635 and Practice C 636 cover suspen-sion systems and their installation without special regard toseismic lateral restraint nee

5、ds. They remain applicable andshall be followed when this practice is specified.1.4 This practice is not intended to stifle research anddevelopment of new products or methods. This practice is notintended to prevent the installation of any material or prohibitany design or method of construction not

6、 prescribed in thispractice, provided that any such alternative has been substan-tiated by verifiable engineering data or full-scale dynamictesting that is acceptable to the authority having jurisdiction.1.5 Ceiling areas of 1000 ft292.9 m2 or less shall beexempt from the lateral force bracing requi

7、rements of 5.2.8.1.6 Ceilings constructed of gypsum board which is screw ornail attached to suspended members that support a ceiling onone level extending from wall to wall shall be exempt from therequirements of this practice.1.7 Free floating ceilings (those not attached directly to anystructural

8、walls) supported by chains or cables from thestructure are not required to satisfy the seismic force require-ments provided they meet the following requirements:1.7.1 The design load for such items shall equal 1.4 timesthe vertical operating weight.1.7.2 Seismic interaction effects shall be consider

9、ed inaccordance with 5.7.1.7.3 The connection to the structure shall allow a 360range of motion in the horizontal plane.1.8 The values stated in either inch-pound or SI units are tobe regarded as standard. Within the text, the SI units are shownin brackets. The values stated in each system are not e

10、xactequivalents; therefore, each system shall be used independentlyof the other. Combining values from the two systems result innonconformance with the specification.1.9 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of t

11、he user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 635 Specification for the Manufacture, Performance, andTesting of Metal Suspension Systems for Acoustica

12、l Tileand Lay-in Panel CeilingsC 636 Practice for Installation of Metal Ceiling SuspensionSystems for Acoustical Tile and Lay-In Panels2.2 Other Standards:ASCE 7 Minimum Design Loads for Buildings and OtherStructures3CISCA Recommendations for Direct-hung Acoustical Tileand Lay-in Ceilings, Seismic Z

13、ones 0-24CISCA Guidelines for Seismic Restraint for Direct HungSuspended Ceiling Assemblies, Seismic Zones3 earthquake; seismic; seismic re-straint; suspended ceilingAPPENDIX(Nonmandatory Information)X1. COMMENTARYX1.1 Recommendations in previous versions of this prac-tice were based in part on test

14、ing done in the 1980s. This,coupled with general observations from the earthquake proneareas in California have lead to the original practice.X1.2 Actual earthquake experience (most notablyNorthridge and Loma Prieta earthquakes) has shown that threemain things are critical for good performance of ce

15、ilingsystems during earthquakes which are:X1.2.1 Independent safety wires on light fixtures to preventdropout,X1.2.2 Minimum strength requirements for splices andcross/runner/main runner intersections, andX1.2.3 Spreader bars and independent support of suspen-sion member terminal ends at wall closur

16、es which preventpanel dropout if the perimeter suspension terminal end slips offof the closure support ledge.FIG. 5 Supplemental Hanger Wires at Light Fixtures (continued)E 580/E 580M 099X1.3 These observations have lead to the requirement forsafety wires on light fixtures and minimum connectionstre

17、ngths in Practice E 580/E 580M. This also led to therequirement for 2-in. 50 mm perimeter support ledger and therequirement for independent support of terminal ends ofsuspension members.X1.4 Advent of International Building Code has raised theawareness of seismic installation requirements in areas w

18、ithinthe United States where these requirements traditionally werenot a concern.X1.5 The introduction of non-traditional ceiling made ofwood and metal, as well as ceilings that do not use traditionaltee bar suspension systems, has lead to a need for an expansionof the prescriptive installation requi

19、rements. There has beenalso a general concern over the interaction of the ceiling systemwith HVAC components, lights and sprinklers. This coupledwith the coming of next generation of performance basedseismic codes has lead to new interest in clear and conciserequirements for installation of ceiling

20、systems. The result isthis current rewrite of this practice.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 pa

21、tent rights, and 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 ei

22、ther for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair

23、 hearing you shouldmake 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 obtained 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).E 580/E 580M 0910

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