ISO 834-9-2003 Fire-resistance tests - Elements of building construction - Part 9 Specific requirements for non-loadbearing ceiling elements《耐火试验 建筑构件 第9部分 非承重顶.pdf

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1、INTERNATIONAL STANDARD ISO 834-9 First edition 2003-02-01 Reference number ISO 834-9:2003(E) ISO 2003 Fire-resistance tests Elements of building construction Part 9: Specific requirements for non-loadbearing ceiling elements Essais de rsistance au feu lments de construction Partie 9: Exigences spcif

2、iques relatives aux lments non porteurs de plafondISO 834-9:2003(E) ii ISO 2003 All rights reserved PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embed

3、ded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated.

4、Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a probl

5、em relating to it is found, please inform the Central Secretariat at the address given below. ISO 2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfil

6、m, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Printed in SwitzerlandISO 834-9:2003(

7、E) ISO 2003 All rights reserved iii Contents Page 1 Scope . 1 2 Normative references . 1 3 Terms and definitions 1 4 Test equipment . 2 5 Test conditions 2 6 Test specimen preparation . 3 7 Application of instrumentation 6 8 Test procedure 7 9 Performance criteria . 7 10 Validity of test . 7 11 Expr

8、ession of results 7 12 Test report 7 Annex A Direct application of results. 8 Bibliography. 10ISO 834-9:2003(E) iv ISO 2003 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of pr

9、eparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, i

10、n liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft Intern

11、ational Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 8

12、34 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 834-9 was prepared by Technical Committee ISO/TC 92, Fire safety, Subcommittee SC 2, Fire containment. ISO 834 consists of the following parts, under th

13、e general title Fire-resistance tests Elements of building construction: Part 1: General requirements Part 3: Commentary on test method and test data application Part 4: Specific requirements for loadbearing vertical separating elements Part 5: Specific requirements for loadbearing horizontal separa

14、ting elements Part 6: Specific requirements for beams Part 7: Specific requirements for columns Part 8: Specific requirements for non-loadbearing vertical separating elements Part 9: Specific requirements for non-loadbearing ceiling elements Annex A of this part of ISO 834 is for information only.IS

15、O 834-9:2003(E) ISO 2003 All rights reserved v Introduction This part of ISO 834 contains specific requirements for fire resistance testing which are unique to the elements of building construction described as non-loadbearing elements. The requirements for these non-loadbearing elements are intende

16、d to be applied in appropriate conjunction with the detailed and general requirements contained in ISO 834-1.INTERNATIONAL STANDARD ISO 834-9:2003(E) ISO 2003 All rights reserved 1 Fire-resistance tests Elements of building construction Part 9: Specific requirements for non-loadbearing ceiling eleme

17、nts CAUTION The attention of all persons concerned with managing and carrying out this fire resistance test is drawn to the fact that fire testing may be hazardous and that there is a possibility that toxic and/or harmful smoke and gases may be evolved during the test. Mechanical and operational haz

18、ards may also arise during the construction of the test elements or structures, their testing and disposal of test residues. An assessment of all potential hazards and risks to health shall be made and safety precautions shall be identified and provided. Written safety instructions shall be issued.

19、Appropriate training shall be given to relevant personnel. Laboratory personnel shall ensure that they follow written safety instructions at all times. 1 Scope This part of ISO 834 specifies test procedures for determining the fire resistance of non-loadbearing ceiling elements which possess fire re

20、sistance independent of any building element above them, when exposed to heating from below the ceiling. It is applicable to self-supporting ceilings and to ceilings suspended from, or fixed directly to, a supporting construction. The application of this test to other untested forms of construction

21、is acceptable when the construction complies with the direct field of application as given in this part of ISO 834 or when subjected to an extended application analysis in accordance with ISO/TR12470 1 . Since ISO/TR12470 gives only general guidelines, specific extended application analyses are to b

22、e performed only by persons expert in fire-resistant constructions. This part of ISO 834 is not applicable to ceilings used as a horizontal fire barrier for the protection of a loadbearing element above, in which case performance is assessed as an integral part of the complete assembly using ISO 834

23、-5. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 834. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreement

24、s based on this part of ISO 834 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of curren

25、tly valid International Standards. ISO 834-1, Fire-resistance tests Elements of building construction Part 1: General requirements ISO 13943, Fire safety Vocabulary 3 Terms and definitions For the purposes of this part of ISO 834, the terms, definitions, symbols and abbreviations given in ISO 834-1,

26、 the terms and definitions given in ISO 13943 and the following apply.ISO 834-9:2003(E) 2 ISO 2003 All rights reserved 3.1 ceiling non-loadbearing element of building construction designed to provide horizontal fire separation 3.2 ceiling grid substructure or suspension system that supports the ceil

27、ing membrane 3.3 expansion device typically, device built into the ceiling grid that allows for expansion of the grid without causing significant deformation of the ceiling 3.4 plenum concealed space between ceiling and floor or roof, often, but not necessarily, designed to accommodate air movement

28、3.5 self-supporting ceiling ceiling with span from wall to wall, without additional suspension support 3.6 services devices penetrating the ceiling (e.g. lighting and ventilation systems) not otherwise covered by a specific fire test 3.7 span distance between centres of support 3.8 suspended ceiling

29、 non-loadbearing horizontal protective membrane suspended from a loadbearing horizontal separating element and its supporting framework, including hangers, services, insulating materials, and access and inspection panels 3.9 test specimen full ceiling specimen submitted for test, including hangers,

30、fittings, insulating materials and features such as lighting, ventilation and access and inspection panels 4 Test equipment The test equipment employed in the conduct of this test shall consist of a furnace, restraint and support frames and instrumentation in accordance with ISO 834-1. 5 Test condit

31、ions The heating and pressure conditions, furnace atmosphere and the restraint and boundary conditions shall be in accordance with ISO 834-1, in addition to the requirements of this part of ISO 834.ISO 834-9:2003(E) ISO 2003 All rights reserved 3 6 Test specimen preparation 6.1 Specimen design 6.1.1

32、 Details of construction The test specimen shall be designed to characterize the details of the construction for which the desired rating is sought, such as longitudinal and transverse jointing systems. Differently constituted forms of the same detail shall be avoided. 6.1.2 Alignment When the longi

33、tudinal and transverse directions of the ceiling are constructed differently, and the performance of the test specimen varies depending upon the direction aligned with the longitudinal axis, the ceiling shall be designed to represent the more onerous orientation by arrangement of the more critical c

34、omponents parallel to the longitudinal axis. When the more onerous condition cannot be identified, two separate tests shall be performed, with the components arranged both parallel and perpendicular to the longitudinal axis. 6.1.3 Services When ceilings incorporate services such as lighting or air h

35、andling systems, which are an integral part of the design of the ceiling, these shall be included in the test specimen or in an additional specimen and distributed as in practice. 6.2 Specimen size The exposed dimensions of the test specimen shall be at least , unless the construction it represents

36、is designed to have exposed dimensions of less than , in which case the actual exposed dimensions shall be tested. The span of the ceiling shall be in the direction of the larger dimension. 6.3 Number of test specimens The number of test specimens shall be in accordance with this part of ISO 834 and

37、 ISO 834-1. 6.4 Specimen conditioning At the time of the test the strength and moisture content of the test specimens shall approximate the conditions expected in normal service. This shall include any infills and jointing materials. All components and materials of the test specimen shall be conditi

38、oned in accordance with ISO 834-1. After equilibrium has been achieved the moisture content or state of cure shall be determined and recorded. Any supporting construction, including the lining to the test frame, is exempt from this requirement. 6.5 Specimen installation and restraint 6.5.1 General 6

39、.5.1.1 Installation and fittings The ceiling shall be installed in a manner representative of its use in practice. It shall be installed using the method and procedures recommended by the sponsor. It shall model the edges between the ceiling and walls, the joints and jointing materials to be used in

40、 practice. The test specimen shall include any appropriate fittings that are an essential part of the specimen and may influence its behaviour in test. 4m3m 4m3mISO 834-9:2003(E) 4 ISO 2003 All rights reserved Where fixtures and fittings do not form an integral part of the ceiling but can be fitted

41、subsequently in a manner that could affect the fire resistance of the ceiling, these shall be the subject of a separate full-size test. When the ceiling design includes both longitudinal and transverse joints, the test specimen shall include both. 6.5.1.2 Profiles IMPORTANT Where the supporting grid

42、 of the ceiling contains a built-in expansion device, the ends of the grid supported on the perimeter angle/section shall be tightly abutted to it. This is to ensure that the expansion device in the grid is adequately tested. Profiles bearing the various components or panels of the ceiling shall be

43、installed without gaps, unless a gap or gaps are required for design purposes, in which case such gaps shall be representative of practice. In situations where the effect of large gaps between the grid and the supports at the perimeter angle/support needs to be shown, this shall be investigated in a

44、 separate, additional test. 6.5.1.3 Gaps Small gaps between the ceiling and laboratory test frame shall be sealed by a suitable resilient material that will prevent the passage of hot gases but not impose restraint at the boundaries of the ceiling. 6.5.1.4 Suspended ceilings Suspended ceiling test s

45、pecimens shall be supported across the furnace from steel beams of type IPN 140 or equivalent and a span of , and shall be open to the laboratory on its upper face as shown in Figure 1. 6.5.2 Restraint The test specimen shall be mounted in a test frame or furnace to prohibit thermal elongation. Ther

46、e shall be no allowance made for longitudinal movement of the edges or thermal expansion in either direction, other than that provided for in the ceiling design specification. Grid members shall be tightly fitted to a test frame or furnace walls in order that the thermal expansion behaviour of grid

47、members and expansion devices can be correctly evaluated (see 6.5.1.2). All connections with the test specimen shall reproduce normal levels of restraint. The stiffness of the supporting construction shall also reproduce normal levels of restraint. 6.5.3 Fixing 6.5.3.1 General When the ceiling being

48、 tested is not smaller in any direction than in practice, it shall be tested fixed as in practice. 6.5.3.2 Size When the proposed specimen is smaller than the test frame or furnace opening, a supporting construction shall be used to reduce the opening to the required dimension. (This construction is

49、 not subject to the specimen conditioning requirements when there is no contribution from it to the performance of the test specimen.) When another supporting structure is used, the design of the connection between the specimen and the supporting construction, including any fixings and materials used to make the junction, shall be as used in practice and shall be regarded as part of the test specimen. The supporting construction is to be considered part of the test frame. 4 200 mm 200 mmISO 834-9:2003(