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WB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1
UK National Annex to
Eurocode 9: Design of
aluminium structures –
Part 1-4: Cold-formed structural sheeting
NA to BS EN 1999-1-4:2007
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NA to BS EN 1999-1-4:2007
NAtioNAl ANNEx
Publishing and copyright information
the BSi copyright notice displayed in this document indicates when the
document was last issued.
© BSi 2009
iSBN 978 0 580 57350 7
iCS 91.010.30; 91.080.10
the following BSi references relate to the work on this national annex:
Committee reference B/525/9
Draft for comment 08/30153335 DC
Publication history
First published January 2009
Amendments issued since publication
Date
Text affected
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NAtioNAl ANNEx
© BSI 2009 •
1
NA to BS EN 1999-1-4:2007
National Annex (informative) to
BS EN 1999-1-4:2007, Eurocode 9: Design
of aluminium structures – Part 1-4:
Cold-formed structural sheeting
Introduction
this National Annex has been prepared by BSi Subcommittee, B/525/9,
Structural use of aluminium. in the UK it is to be used in conjunction
with BS EN 1999-1-4:2007, Cold-formed structural sheeting.
NA.1 Scope
this National Annex gives:
the UK decisions for the Nationally Determined Parameters
a)
described in the following subclauses of BS EN 1999-1-4-2007:
2
—
(3)
2
—
(4)
2
—
(5)
3.1
—
(3)
7.3
—
(3)
A.1
—
(1)
A.3.4
—
(3)
the UK decisions on the status of BS EN 1999-1-4:2007 informative
b)
annexes; and
references to non-contradictory complementary information.
c)
NA.2 Nationally Determined Parameters
UK decisions for the Nationally Determined Parameters described in
BS EN 1999-1-4:2007 are given in table NA.1.
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NA to BS EN 1999-1-4:2007
2
• © BSI 2009
NAtioNAl ANNEx
table
NA.1
UK
values
for
Nationally
Determined
Parameters
described
in
BS
EN
1999-1-4:2007
Subclause
Nationally
Determined
Parameter
Eur
ocode
recommendation
UK
decision
2(3)
Numerical
values
for
c
Mi
For
buildings:
c
M1
=
1,10
c
M2
=
1,25
c
M3
=
1,25
Use
the
recommended
values.
2(4)
Numerical
value
for
c
M,Ser
For
buildings:
c
M,Ser
=
1,00
Use
the
recommended
value.
2(5)
R
u
le
s
fo
r
th
e
u
se
o
f
St
ru
ct
u
ra
l C
la
ss
es
a
n
d
connection
to
Consequence
Classes
in
EN
1990
[None]
No
data
are
currently
available.
3.1
(3)
Use
of
other
aluminium
materials
and
products
[None]
No
data
are
currently
available.
7.3
(3)
limits
on
deflections
[None]
No
data
are
currently
available.
A.1
(1)
Conversion
factors
for
test
results
[None]
No
data
are
currently
available.
A.3.4
(3)
Numerical
values
for
c
M
and
c
sys
c
M
m
ay
b
e
ca
lc
u
la
te
d
u
si
n
g
s
ta
ti
st
ic
al
m
et
h
o
d
s
as
given
in
EN
1990,
or
design
values
from
Section
2;
c
sys
=
1,00
in
the
case
of
sheeting
Use
the
recommended
values.
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NAtioNAl ANNEx
© BSI 2009 •
3
NA to BS EN 1999-1-4:2007
NA.3 Decisions on the status of informative
annexes
UK decisions on the status of informative annexes in BS EN 1999-1-4:2007
are given in table NA.2.
table NA.2 UK decisions on the status of informative annexes in
BS EN 1999-1-4:2007
Annex
Description
UK decision
Annex B
Durability of fasteners
May be used
NA.4 References to non-contradictory
complementary information
BS EN 1999-1-1:2007 is referenced in BS EN 1999-1-4:2007. the
following references contain non-contradictory complementary
information for use with BS EN 1999-1-1:2007.
PD 6702-1, Recommendations for the design of aluminium
structures to BS EN 1999
PD 6705-3, Recommendations for the execution of aluminium
structures to BS EN 1090-3
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NA to BS EN 1999-1-4:2007
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• © BSI 2009
NAtioNAl ANNEx
Bibliography
For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including
any amendments) applies.
Standards publications
BS EN 1990:2002, Eurocode – Basis of structural design
BS EN 1999-1-1:2007, Eurocode 9: Design of aluminium structures –
Part 1-1: General structural rules
PD 6702-1, Recommendations for the design of aluminium
structures to BS EN 1999
1)
PD 6705-3, Recommendations for the execution of aluminium
structures to BS EN 1090-3
1)
1)
in preparation.
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