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本文(ASTM E580 E580M-2008a 402 Standard Practice for Installation of Ceiling Suspension Systems for Acoustical Tile and Lay-in Panels in Areas Subject to Earthquake Ground Motions.pdf)为本站会员(sofeeling205)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

ASTM E580 E580M-2008a 402 Standard Practice for Installation of Ceiling Suspension Systems for Acoustical Tile and Lay-in Panels in Areas Subject to Earthquake Ground Motions.pdf

1、Designation: E 580/E 580M 08aStandard 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

2、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 of the D

3、epartment 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 ne

5、eds. 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 no

6、t 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 requ

7、irements 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 thelateral force bracing requirements of 5.2.8.1.7 Free floating ceilings (those not attached directly to

8、 anystructural 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 sh

9、all be considered 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 s

10、ystem are not exactequivalents; 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 theresp

11、onsibility of the 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 System

12、s for Acoustical 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 Ceil

13、ings, Seismic Zones 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

14、in part on testing 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 pe

15、rformance of ceilingsystems 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

16、 at wall closures which preventpanel dropout if the perimeter suspension terminal end slips offof the closure support ledge.X1.3 These observations have lead to the requirement forsafety wires on light fixtures and minimum connectionstrengths in Practice E 580/E 580M. This also led to therequirement

17、 for 2-in. 50 mm perimeter support ledger and theE 580/E 580M 08a9requirement for independent support of terminal ends ofsuspension members.X1.4 Advent of International Building Code has raised theawareness of seismic installation requirements in areas withinthe United States where these requirement

18、s 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 requirements. There has beenalso a general concern

19、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 systems. The result isthis current rewrite of

20、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 patent rights, and the riskof infringement of su

21、ch 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 of this standard or for addi

22、tional 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 hearing you shouldmake your views known to th

23、e 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 08a10

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