NFPA 220-2018 Standard on Types of Building Construction (Effective Date 08 21 2017).pdf

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31、ocinfo.220-1 NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169. Copyright 2017 National Fire Protection Association . All Rights Reserved. NFPA 220 Standard on Types of Building Construction 2018 Edition T

32、his edition of NFPA 220, Standard on Types of Building Construction, was prepared by the Technical Committee on Building Construction. It was issued by the Standards Council on August 1, 2017, with an effective date of August 21, 2017, and supersedes all previous editions. This document has been ame

33、nded by one or more Tentative Interim Amendments (TIAs) and/or Errata. See “Codes & Standards” at www.nfpa.org for more information. This edition of NFPA 220 was approved as an American National Standard on August 21, 2017. Origin and Development of NFPA 220 In 1952, the Committee on Building Constr

34、uction secured tentative adoption of NFPA 220, Standard on Types of Building Construction, at the NFPA Annual Meeting. At the 1954 NFPA Annual Meeting, revisions of the 1952 tentative text were adopted by the Association, and in 1955 minor revisions also were acted on favorably. A new denition of no

35、ncombustibility and editorial changes in the description of the re resistance rating of structural members (under the denition of re-resistive construction) were adopted at the 1956 NFPA Annual Meeting on the recommendation of the Committee on Building Construction. In 1958, with the development of

36、the use of plastics in building construction, recommendations on the types of standard re tests to be used in evaluating the re safety of these materials were adopted and inserted in the appendix. In 1961, an appendix was adopted to furnish a guide to NFPA committees, regulatory ofcials, and others

37、that addressed the classication of air-supported structures. In 1975, a more fundamental denition of noncombustible was added, including the introduction of a denition of the term limited-combustible based on potential heat value limitations and more generalized denitions for types of building const

38、ruction. In 1979, the standard was extensively rewritten to introduce the nomenclature related to construction Type I through Type V, which included parenthetically placed hourly re resistance designations of the structural components. The 1985 edition included the addition of a new Chapter 4, which

39、 provided referenced publications whose use is mandated within this standard. The 1992 and 1995 editions provided changes in technical terminology as well as changes to increase the user-friendliness of the standard. The 1999 edition implemented a number of relatively minor changes, including the ad

40、dition of several new denitions, the addition of a new requirement pertaining to exterior non-load-bearing walls, and a new provision concerning the use of heavy timber exterior walls. In the 2006 edition, NFPA 220 became an extract document of NFPA 5000 , Section 7.2. At the request of the Standard

41、s Council, the new edition provided users with a stand-alone set of requirements for construction types and re resistance ratings of structural elements. The 2009 edition provided updates to the extracted text that was sourced back to NFPA 5000 and NFPA 90A. These revisions included updates to the t

42、est protocols used to establish ame spread/ smoke developed index values, modied criteria for materials used in air handling plenum spaces, and provided recognition of the new criteria used to determine building height and grade geometries.TYPES OF BUILDING CONSTRUCTION 220-2 2018 Edition The 2012 e

43、dition was updated to reect changes in NFPA 5000 and NFPA 90A. Revisions included updates to the requirements for plenums and noncombustible materials. The 2015 edition was revised to include new requirements for limited and noncombustible materials. Referenced publications were updated. The 2018 ed

44、ition includes updates to extracted material from NFPA 5000. Referenced publications have been updated.COMMITTEE PERSONNEL 220-3 2018 Edition Technical Committee on Building Construction Renato R. Molina, Chair JENSEN HUGHES, MD SE Nasser Ahmed Al Zeyara, Qatar Civil Defense, Qatar E Farid Alfawakhi

45、ri, American Iron and Steel Institute, IL M Mark Chrisman, Henderson Engineers, KS SE David S. Collins, The Preview Group, Inc., OH SE Rep. American Institute of Architects Richard J. Davis, FM Global, MA I Richard L. Day, Michigan State Fire Marshals Ofce, MI E Alan J. Dopart, Willis of New Jersey,

46、 NJ I Victor L. Dubrowski, Code Consultants, Inc., MO SE Paul Ferro, Fire Department City of New York, NY L Rep. International Association of Fire Fighters David W. Frable, U.S. General Services Administration, IL U Sam W. Francis, American Wood Council, PA M James W. Gaut, Marriott Vacations Worldw

47、ide, FL U Kurtis Grant, U.S. Department of Health whereas, for the processing of NFPA 220 and NFPA 221, this committee does not report to the NFPA 5000 Correlating Committee.TYPES OF BUILDING CONSTRUCTION 220-4 2018 Edition Contents Chapter 1 Administration 220 5 1.1 Scope. . 220 5 1.2 Purpose. . 22

48、0 5 1.3 Application. (Reserved) 220 5 1.4 Retroactivity. . 220 5 1.5 Equivalency. . 220 5 1.6 Units. 220 5 Chapter 2 Referenced Publications 220 5 2.1 General. 220 5 2.2 NFPA Publications. 220 5 2.3 Other Publications. . 220 6 2.4 References for Extracts in Mandatory Sections. 220 6 Chapter 3 Deniti

49、ons . 220 6 3.1 General. 220 6 3.2 NFPA Ofcial Denitions. 220 6 3.3 General Denitions. 220 6 Chapter 4 Types of Construction . 220 6 4.1 General. 220 6 4.2 Reserved. 220 8 4.3 Type I (442 or 332) and Type II (222, 111, or 000) Construction. 220 8 4.4 Type III (211 or 200) Construction. . 220 9 4.5 Type IV (2HH) Construction. . 220 9 4.6 Type V (111 or 000) Construction. . 220 11 Chapter 5 Fire Resistance Rating Requirements for Structural Elements 220 11 5.1 Fire Resistance Rating Requir