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  • BSI
    BS 476-21:1987 Fire tests on building materials and structures - Methods for determination of the fire resistance of loadbearing elements of construction
    Edition: 2014
    $316.70
    / user per year

Description of BS 476-21:1987 2014

This Part of BS 476 describes procedures for determining the fire resistance of loadbearing elements of building construction when subjected to the heating and pressure conditions specified in BS 476‑20. This Part provides requirements for specimen selection and/or its design and construction, loading and restraint conditions, equipment, procedures and criteria as they apply to loadbearing specimens. The methods are applicable to beams, columns, floors, flat roofs and walls.

The methods described are not applicable to suspended ceilings protecting steel beams which are described in BS 476‑23 (see A.1). Owing to limitations imposed by both the furnaces and their method of control, structures employing water cooling techniques are not capable of being evaluated realistically by these procedures.

The methods described are not applicable to assemblies of elements, e.g. wall/floor combinations, although some guidance is provided in Appendix A for tests of this type (see A.1).

NOTE The titles of the publications referred to in this standard are listed on the inside back cover.



Detailed test requirements for beams, columns, floors and flat roofs, and walls.

Standard NumberBS 476-21:1987
TitleFire tests on building materials and structures - Methods for determination of the fire resistance of loadbearing elements of construction
StatusConfirmed
Publication Date2014-04-30
ReplacesBS 476-8:1972
CorrectsBS 476-21:1987
DescriptorsFlat roofs, Columns, Floors, Dimensions, Fire resistance, Construction systems parts, Fire tests, Structural members, Test specimens, Walls, Roofs, Loadbearing walls, Testing conditions, Beams, Heating tests
ICS13.220.50 Fire-resistance of building materials and elements
CommitteeFSH/22
ISBN978 0 580 85688 4
PublisherBSI
Pages22

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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