bs.na.en.1999.1.1.2009

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BS NA EN 1999-1-1 (2009) (English): UK National

Annex to Eurocode 9. Design of aluminium

structures. General structural rules

8/14/2019 bs.na.en.1999.1.1.2009


8/14/2019 bs.na.en.1999.1.1.2009


N t BS EN 1999-1-1:2007 A1:2009Incorporating National Amendment No

and Corrigendum No

UK National Annex to

Eurocode 9: Design ofaluminium structures -Part 1 1 : General structural rules

NOCOPYING WITHOUT S RMISSION EXCEPT S PERMITIED Y COPYRIGHT L W

r ising st nd rds worldwide™

_

8/14/2019 bs.na.en.1999.1.1.2009


NA to S EN 1999-1-1 :2007 A 1 2009 NATIONAL ANNEX

I jFS100

From well managed f o r ~ t ~

Cert no. SW COC 00421S

www.fsc.org© 1996 Forest Stewardship Council

Publishing and copyright information

The 851 copyright notice displayed in this document indicates when the

document was last issued.

© 8512010

158N 978 58 7154 2

IC5 77.150.10,91.010.30,91.080.10

The following 851 references relate to the work on this standard:

Com m ttee reference 8 525 9

Draft for comment 08 30129901 DC

Publication history

First published November 2008

Amendments issued since publication

Amd. No.

A1

C1

Date

February 2010

May 2010

Text affected

See Introduction

Correction to date of

amendment in identifier

8/14/2019 bs.na.en.1999.1.1.2009


NATIONAL ANNEX

ontents

Introduction 1

NA.1 Scope 1

NA to BS EN 1999-1-1 :2007 A1 2009

NA.2 Nationally Determined Parameters

NA.3 Decisions on the status of informative annexes 7

NA.4 References to non-contradictory complementary information 7

Bibliography 8

list o tables

Table NA.1 - UK values for Nationally Determined Parameters

described in BS EN 1999-1-1:2007 A1 2

Table NA.2 - UK decisions on the status of informative annexes in

BS EI\l1999-1-1:2007 A1 7

Summary of pages

This document comprises a front cover, an inside front cover,

pages i to ii, pages 1 to 8 an inside back cover and a back cover.

© 8512 1 •

8/14/2019 bs.na.en.1999.1.1.2009


N t S EN 1999-1-1:2007 A1:2009 NATIONAL ANNEX

his p ge deliber tely l ft bl nk

8/14/2019 bs.na.en.1999.1.1.2009


NATIONAL ANNEX NA to BS EN 1999-1-1:2007+A1:2009

National Annex informative) toBS EN 1999-1-1:2007+A1:2009, Eurocode :

Design o aluminium structures - Part 1-1:

General structural rules

IntroductionThis National Annex has been prepared by BSI Subcommittee, B/525/9

Structural us o aluminium. In the UK it is to be used in conjunction

with BS EN 1999-1-1, General structura l rules.

NA to BS EN 1999-1-1:2007+A1:2009 incorporating National

Amendment No.1 supersedes NA to BS EN 1999-1-1:2007, which is

withdrawn.

The start and finish of text introduced or altered by National

Amendment No.1 is indicated in the text by tags @). Minoreditorial changes are not tagged.

National Amendment No.1 has been made to reflect Amendment No.1

to BS EN 1999-1-1:2007.

NA.1 ScopeThis National annex gives:

a the UK decisions for the Nationally Determined Parameters

described in the following subclauses of BS EN 1999-1-1-2007+A1:

1.1.2 1)

- 2.1.2 3)

- 2.3.1 1)

- 3.2.1 1)

- 3.2.2 1)

- 3.2.2 2)

- 3.2.3.1 1)

- 3.3.2.1 3)

3.3.2.2 1)

5.2.1 3)

5.3.2 3)

- 5.3.4 3)

- 6.1.3 1)

- 6.2.1 5)

-7.1 4)

-7.2.1 1)

-7.2.2 1)

-7.2.3 1)

8.1.1 2)

- 8.9 3)

~ A . 2 g- ,3.4.1 2)

- ,3.4.1 3)

- ,3.4.1 4)

- K.1 1)

- K.3 1)

b the UK decisions on the status of BS EN 1999-1-1 :2007+A 1

informative annexes; and

c references to non-contradictory complementary information.

NA.2 Nationally Determined ParametersUK decisions for the Nationally Determined Parameters described in

BS EN 1999-1-1 :2007+A 1 are given in Table NA.1.

© BSI 2010 • 1

8/14/2019 bs.na.en.1999.1.1.2009


I\J

Table NA.1•@

Subclause0::1

: :1.1.2 1)V

a

a

2.1.2 3)

2.3.1 1)

UK values for Nationally Determined Parameters described in BS EN 1999-1-1:2007+A1

Nationally Determined Parameter

Minimum material thicknesses

Options relating to execution allowed by

prEN 1090 to suit required reliability level

Actions for particular regional or climatic

or accidental situations

Eurocode recommendation

a) Components with material thickness

not less than 0 6 mm;

b) Welded components with material

thickness not less than 1 5 mm;

c Connections with:

[None]

steel bolts and pins not less than

5mm;

aluminium bolts and pins not less

than 8 mm;

rivets and thread forming screws

with diameter not less than

4,2 mm

General actions to be taken from

15 BS EN 1990:2002+A 1 Annex A,

and BS EN 1991

UK dec

Use the

BS EN

clauses

and op

design

Follow

Nation

Nation

8/14/2019 bs.na.en.1999.1.1.2009


OJ

N

o

•w

Table NA.1

Subclause

3.2.1(1)

3.2.2{1 )

3.2.2(2)

3.2.3.1{1 )

3.3.2.1 (3)

UK values for Nationally Determined Parameters described in BS EN 1999-1-1:2007+A1 continued)


Use of aluminium alloys and tempers not

listed in 3.2.1, Table 3.1 a and Table 3.1 b

Rules for application of electrically welded

tubes produced to BS EN 1592-1 to

BS EN 1592-4

Rules for the reduction of characteristic

strength values at service temperatures

between 80°C and 100°C

Rules for the quality requirements for

castings

Provisions for the use of aluminium bolts

and solid rivets


[None]

Buckling class B

(Product properties are not listed)

Characteristic resistance values may be

reduced using formula 3.1

Rules given in C.3.4 for gravity castings)

Provisions given in Annex C for bolts

listed in 3.4)

UK decis

To enabl

stock wh

adoption

it is permlisted in

in PD 67

to appro

use of th

and min

PD 6702-

than the

Table 3.2

calculati

relevant

The tube

as having

the MIG

and with

BS EN 19

and 6.3.1

Use the

to confir

for use a

NOTE C

to stress

temperat

NAW 5

Use the

Annex C

Use the

Annex C

8/14/2019 bs.na.en.1999.1.1.2009


J:::i. Table NA.1

•@ SubclauseOJ

3.3.2.2 1)r-.J

0-0

5.2.1 3)

5.3.2 3)

5.3.4 3)

6.1.3 1)

6.2.1 5)

7.1 4)



Rules for preloaded bolts other than

classes 8.8 and 10.9

Global mode elastic instability criterion

a cr for neglecting the influence of second

order effects

Design values of initial bow imperfections

for flexural buckling

Initial imperfection factor k to be used for

second order analysis taking account oflateral torsional buckling

Ultimate limit state (ULS) partial safety

factors

Critical point yield criterion C for the

resistance of cross-sections

Further guidance on plastic redistribution

of moments and force at serviceability

l imit state


[None]

acr=F ~ 1Ed

Values given in Table 5.1

k==O 5

YMl == 1,10

YM2 = 1,25

c= 1,2

[None]

UK dec

To ena

stock w

adopti

it is pe

British

This prthe de

values

standa

BS EN

Use the

Use the

Use the

Use the

Use the

Certain

perma

loading

utilizat

recomm

are che

membe

bendin

in PD 6

8/14/2019 bs.na.en.1999.1.1.2009


@

OJ

No

o

•V1

Table NA.1

Subclause

7.2.1(1 )

7.2.2(1)

7.2.3(1)

8.1.1(2)

8.9(3)

~ A 2

C.3.4.1(2)



Building vertical deflection limits

Building horizontal deflection limits

Building dynamic effects limits for the

vibration of floors

Partial safety factors YM for joints

Provisions for joining methods other than

those specified in Cia use 8

Rules for the application of consequence

classes and reliability classes and for

the connection between them and

requirements for design supervision

Partial safety factors YM for castings


[None]

(None]

(None]

Values given in Table 8.1

(None]

Recommendations given in

BS EN 1990:2002+A1 Annex B

1 1 and YMu,c 2,0 for buildings

UK decis

Certain v

and the

PD 6702-

Certain vand the

PD 6702-

Certain v

and the

The Nat

gives val

further g

Use YMw =the reco

Refer to

other prowelding.

The use

Refer to

recomm

and relia

Use the

of buildi

vibration

other cas

if proven

by rigoroBS EN

8/14/2019 bs.na.en.1999.1.1.2009


en Table NA.1

•@ Subclausero

C.3.4.1 3)N0

0

C.3.4.1 4)

K.1(1}

K.3(1)



Partial safety factors YM for bearing

resistance in castings with bolts and rivets

Partial safety factors YM for bearing

resistance in castings with pin connections

Rules where shear lag in flanges may be

neglected at ULS

Method for determining shear lag effects

at ULS


YM2,cu = =2,0 and

= YMO,c = 1 1 for buildings

= YMu,c =2,0 and

YMP,CO = = 1,25 for buildings

o< e 15 for support regions, cantilevers

and regions with concentrated load, and

o< e 115 for sagging bending regions.Elastic method for calculation of shear lag

effects

UK dec

Use the

of build

vibratio

other c

if prov

by rigo

15) BS E

Use the

of build

vibratio

other c

if prov

by rigo

15) BS E

Use the

Use the

8/14/2019 bs.na.en.1999.1.1.2009


NATIONAL ANNEX NA t BS EN 1999-1-1 :2007 A1 2009

NA.3 Decisions on the status o informativeannexesUK decisions on the status of informative annexes in

BS EN 1999-1-1 :2007 A1 are given in Table NA.2.

Table I\JA.2 UK decisions on the status of informative annexes in BS EN 1999-1-1 :2007 A1

Annex

15 Annex A

Annex C

Annex D

Annex EAnnex F

Annex G

Annex H

Annex I

Annex J

Annex K

Annex L

Annex M

Description

Reliability differentiation

Materials selection

Corrosion and surface protection

Analytical models for stress strain relationship

Behaviour of cross-sections beyond the elastic limit

Rotation capacity

Plastic hinge method for continuous beams

Lateral torsional buckling of beams and torsional or

torsional-flexural buckling of compressed members

Properties of cross sections

Shear lag effects in member design

Classification of joints

Adhesive bonded connections

UK decision

Not recommended -

PD 6702-1 provides

guidance that is

acceptable for use in

the UK ®l

May be used

May be used

May be usedMay be used

May be used

May be used

May be used

May be used

May be used

May be used

May be used

NA.4 References to non contradictory

complementary informationBS EN 1999-1-3 is referenced in BS EN 1999-1-1:2007 A1. The

following references contain non-contradictory complementary

information for use with BS EN 1999-1-3.

PD 6702-1, 15 tructural use of aluminium - Part : Recommendations

for the design of aluminium structures to s N 999 ®l

PD 6705-3, 15 tructural use of steel and aluminium - Part 3:

Recommendations for the execution of aluminium structures to

s N 1090 3 ®l

© BSI 2010 • 7

8/14/2019 bs.na.en.1999.1.1.2009


NA to BS EN 1999-1-1:2007+A1:2009 NATIONAL ANNEX

8 • © 8512010

ibliography

Standards publications

For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document including

any amendments) applies.

BS EN 1090-2, Execution of steel structures nd luminium structures-

Part : Technical requirements for steel structures

BS EN 1090-3:2008, Execution of steel structures nd luminium

structures - Part : Technical requirements for luminium structures

5> BS EN 1990:2002+A 1 2005, Eurocode 0 asis of structur l

design :iI

BS EN 1991 all parts), Eurocode : Actions on structures

15 PD 6702-1, Structural use of luminium - Part : Recommendations

for the design of luminium structures to S EN 1999 :iI

15 PD 6705-3, Structural use of steel nd luminium Part 3:

Recommendations for the execution of luminium structures to

S EN 1090 3 ®J

8/14/2019 bs.na.en.1999.1.1.2009


8/14/2019 bs.na.en.1999.1.1.2009


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