1、 NFPA 221 Standard for High Challenge Fire Walls, Fire Walls, and Fire Barrier Walls 2018IMPORTANT NOTICES AND DISCLAIMERS CONCERNING NFPA STANDARDS NOTICE AND DISCLAIMER OF LIABILITY CONCERNING THE USE OF NFPA STANDARDS NFPA codes, standards, recommended practices, and guides (“NFPA Standards”), of
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31、wed at no cost at www.nfpa.org/docinfo.221-1 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 221 Standard for High Challen
32、ge Fire Walls, Fire Walls, and Fire Barrier Walls 2018 Edition This edition of NFPA 221, Standard for High Challenge Fire Walls, Fire Walls, and Fire Barrier Walls, was prepared by the Technical Committee on Building Construction. It was issued by the Standards Council on August 1, 2017, with an eff
33、ective date of August 21, 2017, and supersedes all previous editions. This edition of NFPA 221 was approved as an American National Standard on August 21, 2017. Origin and Development of NFPA 221 The Technical Committee on Building Construction undertook a project to develop a new document to govern
34、 re walls in 1991. At the time, no standard existed to assist code authorities, architects, or engineers on the criteria that were necessary to properly design and construct a re wall. The rst edition of NFPA 221 was issued in 1994. It contained information on various types of re walls, including ba
35、sic design criteria, proper protection of penetrations, and special design practices for exterior protection features. The 1997 edition of NFPA 221 contained several changes, including the addition of specic criteria for treatment of seismic separation assemblies, additional criteria for proper prot
36、ection of raceway penetrations, and the addition of several suggested protection schemes for properly protecting an egress door located in a re wall. The 2000 edition addressed specic testing criteria for performance of rated assemblies that included expansion, seismic, and control joints in re wall
37、 and re barrier wall assemblies. In addition, a second test protocol was recognized for tests of through penetrations. The 2006 edition introduced two distinct types of re walls. Presented in Chapter 5, the “high challenge re wall” requirements were an evolution of the re wall requirements found in
38、the 2000 edition of NFPA 221, while the “re wall” requirements presented in Chapter 6 were based upon the requirements found in the 2003 edition of NFPA 5000 , Building Construction and Safety Code . Chapter 4 of this document contains extracts from NFPA 5000, Chapter 8, on such topics as analytical
39、 methods, duct and air-transfer openings, joints, opening protectives, and penetrations. Please note these extracts were stylistically adjusted to reect this documents exclusive focus on walls by eliminating references to oors, oor-ceiling assemblies, smoke dampers, and partitions. The 2009 edition
40、was updated to reect changes to Chapter 8 of NFPA 5000. Other changes included recognition of the new criteria used to determine building height and grade geometries, further clarications as to where a provision applies to a particular type of wall, and the addition of a new requirement concerning h
41、orizontal exits served by bridges between buildings. The 2012 edition was a reafrmation of the previous edition, with updated references to reect changes in UL and ASTM documents. For the 2015 edition, extracts from NFPA 5000 were removed. NFPA 5000 now extracts material from NFPA 221. Denitions and
42、 referenced documents also were updated. The 2018 edition claries design load requirements. A new section has been added to allow the performance-based design of walls method from ASCE 7 to be used. Annex material has been added to provide testing options in areas where there is potential for hydroc
43、arbon fuel res. Other changes include reference document updates. ASCE denitions are reprinted with permission from ASCE.HIGH CHALLENGE FIRE WALLS, FIRE WALLS, AND FIRE BARRIER WALLS 221-2 2018 Edition Technical Committee on Building Construction Renato R. Molina, Chair JENSEN HUGHES, MD SE Nasser A
44、hmed Al Zeyara, Qatar Civil Defense, Qatar E Farid Alfawakhiri, 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 Fi
45、re Marshals Ofce, MI E Alan J. Dopart, Willis of New Jersey, 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
46、 Wood Council, PA M James W. Gaut, Marriott Vacations Worldwide, FL U Kurtis Grant, U.S. Department of Health and Human Services, GA E William J. Hall, Portland Cement Association, VA M Robert E. Hanson, Savannah River Nuclear Solutions, GA U Khaled Heiza, Monoa University, Egypt SE Joseph T. Hollan
47、d, Hoover Treated Wood Products, FL M Jeffrey M. Hugo, National Fire Sprinkler Association, Inc., MI M Aaron Johnson, Rural/Metro Corporation, FL E Dale Litton, Texas Instruments, Inc., TX U Rep. Semiconductor Industry Association Vickie J. Lovell, InterCode Incorporated, FL M Rep. Fire Safe North A
48、merica Joe McElvaney, City of Phoenix Fire Department, AZ E Thomas W. McKeon, Everest National Insurance, NJ I Brad Schiffer, Brad Schiffer/Taxis, Inc., FL SE Michael Schmeida, Gypsum Association, OH M Joseph H. Versteeg, Versteeg Associates, CT E Rep. International Fire Marshals Association Peter J
49、. Willse, XL Global Asset Protection Services, CT I Luke C. Woods, UL LLC, MA RT Alternates David G. Bueche, Hoover Treated Wood Products, CO M (Alt. to Joseph T. Holland) Paul D. Coats, American Wood Council, SC M (Alt. to Sam W. Francis) James M. Dalton, Chicago Fire Department, IL L (Alt. to Paul Ferro) Jonathan Humble, American Iron and Steel Institute, CT M (Alt. to Farid Alfawakhiri) William E. Koffel, Koffel Associates, Inc., MD U (Alt. to Dale Litton) Edw
