TG20:13
TG20:13 updateSeptember 2014IntroductionThe NASC is continuing
to improve TG20:13, the comprehensive guide to good practice for
tube and fitting scaffoldingThe first update to TG20, TG20:13
Supplement 1, launched in September 2014It is accompanied by an
update to the TG20:13 eGuide, version 1.1, now available for
download from the NASC website
Whats new?A specification for TG20:13 compliant cold-formed high
tensile steel tubes in TG20:13 Supplement 1TG20 compliance sheets
for cold-formed high tensile steel tubes in the new TG20 eGuideTG20
compliance sheets for sheeted scaffolds with transom unitsSeveral
minor enhancements to TG20 compliance sheets
High tensile tubesTG20:13 provides a definition for TG20
compliant 3.2mm wall thickness high-tensile steel tubes to BS EN
10210-1These tubes are manufactured by a hot-rolling process and
offer performance comparable to type 4 steel tubesHowever, many
3.2mm high-tensile tubes used in the UK scaffolding industry are
manufactured with a cold-formed processAlthough these tubes have a
higher bending capacity than type 4 steel tubes, they did not
comply with TG20:13 because they have a lower axial load capacity
due to their reduced thickness
High tensile tubesTG20:13 has now been extended to support these
tubesThe required tube specification is defined in TG20:13
Supplement 1New TG20 compliance sheets are available for tubes of
this specification from the new TG20 eGuide
High tensile tubesTG20 compliance sheets for cold-formed
high-tensile steel tubes are printed from the new version of the
TG20:13 eGuide with this new option:
Transom unitsTG20 compliance sheets are now available for
sheeted scaffolds constructed with TG20 compliant prefabricated
structural transom unitsCompliance sheets are available for tied
independent scaffolds and tied towersPrinted from the new TG20
eGuideGuidance is provided in TG20:13 Supplement 1
Compliance sheet enhancementsSome minor enhancements have been
made to the TG20 compliance sheets from the new eGuide based on
feedbackA new note that illustrations are indicative the compliance
sheet illustrations are not dimensioned design drawingsSpecific
compliance sheets for scaffolds which are 2.0m, 3.0m or 4.0m
tallMinor clarifications to the wording for scaffolds tied to the
inner face only
CompatibilityThe NASC recommends that the latest TG20 compliance
sheets from the new eGuide are always usedHowever, this update to
TG20 has been designed such that compliance sheets from the
original eGuide (and from the TG20:13 Operational Guide) are still
validThere is no need to differentiate between new and original
compliance sheets on site
Software downloadVersion 1.1 of the TG20:13 eGuide is available
as a free software updateAvailable for Windows, Mac and Android
devicesDownload from the NASC websiteTG20:13 Supplement 1 is
available for download as a PDF
http://www.nasc.org.uk/tg20_13/tg20_13_supplement_1_and_eguide_update
Thank youQuestions?
