BS 5268-7.7:1990 - Structural use of timber. Recommendations for the calculation basis for span tables. Purlins supporting sheeting or decking – BSI British Standards

BS 5268-7.7:1990

Structural use of timber. Recommendations for the calculation basis for span tables. Purlins supporting sheeting or decking

Status : Superseded, Withdrawn   Published : July 1990 Replaced By : BS EN 1995-1-1:2004+A2:2014

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BS 5268-7.7:1990 recommends a calculation basis for the permissible clear span of purlins supporting sheeting or decking in pitched roof construction. The recommendations apply to purlins formed from solid timber and supported by external or internal walls. The major axis of the purlin is perpendicular to the roof slope; other orientations of the purlin are not covered by this standard. The uniform and concentrated loads of BS 6399-1 are considered. Provision is made for a uniformly distributed snow load derived from BS 6399-3.

BS 5268-7.7:1990 is applicable to the species, stress grades or strength classes of timber given in BS 5268-2.




Standard NumberBS 5268-7.7:1990
TitleStructural use of timber. Recommendations for the calculation basis for span tables. Purlins supporting sheeting or decking
StatusSuperseded, Withdrawn
Publication Date31 July 1990
Confirm Date01 November 2007
Withdrawn Date24 November 2009
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)BS 648, BS 4471, BS 4978, BS 5268:Part 2, BS 5268:Part 3, BS 6100:Section 2.1, BS 6100:Section 4.1, BS 6100:Section 4.2, BS 6100:Section 4.3, BS 6100:Section 4.4, BS 6399:Part 1, BS 6399:Part 3, ISO 3898, CIB-W18-1
Replaced ByBS EN 1995-1-1:2004+A2:2014
Draft Superseded By88/13315 DC
DescriptorsStructural timber, Wood, Purlins, Roofs, Pitched roofs, Roof decking, Spaced, Length, Design, Design calculations, Structural design, Loading, Dead loading, Formulae (mathematics), Deformation, Tables (data), Stress analysis
ICS91.060.30
91.080.20
Title in FrenchUtilisation du bois en construction. Recommandations relatives aux bases de calcul des portées. Pannes de support des revêtements des combles en pente
Title in GermanVerwendung von Holz im Bauwesen. Empfehlungen zur Berechnung von Spannweitentabellen. Pfetten zur Auflagerung der Dachhaut bzw. -schalung bei geneigten Daechern
CommitteeB/525/5
ISBN0 580 18047 6
PublisherBSI
FormatA4
DeliveryNo
Pages22
File Size478.5 KB
Price£129.00


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