Transcript
NATIONAL ANNEX
I S B ) c ( , y p o C d e l l o r t n o c n U , 6 0 0 2 T M G 3 0 : 8 5 : 0 1 0 2 b e F n o M , C S I J m a h g n i m r i B f o y t i s r e v i n U , a n a n : y p o C d e s n e c i L
UK National Annex to Eurocode 2: Design of concrete structures — Part 1-1: General rules and rules for buildings
ICS 91.010.30; 91.080.40
12&23<,1*:,7+287%6,3(50,66,21(;&(37$63(50,77('%<&23<5,*+7/$:
NA to BS EN 1992-1-1:2004
NA to BS EN 1992-1-1:2004
Committees responsible for this National Annex I S B ) c ( , y p o C d e l l o r t n o c n U , 6 0 0 2 T M G 3 0 : 8 5 : 0 1 0 2 b e F n o M , C S I J m a h g n i m r i B f o This National Annex was y t i published under the authority s r of the Standards Policy and e Strategy Committee v on 8 December 2005 i n U , © BSI 8 December 2005 a n a First edition December 2005 n : y p o C d e s n The following BSI references e relate to the work on this c i L National Annex:
Committee reference B/525/2 Draft for comment 05/30134002
ISBN 0 580 47244 2
The preparation of this National Annex was entrusted by Committee B/525, Building and civil engineering structures, to B/525/2, Structural use of concrete, upon which the following bodies were represented: Association of Consulting Engineers British Cement Association British Precast Concrete Federation Ltd. Building Research Establishment Concrete Society Department of Transport (Highways Agency) Institution of Civil Engineers Institution of Structural Engineers Office of the Deputy Prime Minister Scottish Building Standards Agency UK Steel Co-opted members
Summary of pages This document comprises a front cover, an inside front cover, page i, a blank page, pages 1 to 20, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.
Amendments issued since publication Amd. No.
Date
Comments
NA to BS EN 1992-1-1:2004
Contents Page Committees responsible
I S B ) c ( , y p o C d e l l o r t n o c n U , 6 0 0 2 T M G 3 0 : 8 5 : 0 1 0 2 b e F n o M , C S I J m a h g n i m r i B f o y t i s r e v i n U , a n a n : y p o C d e s n e c i L
Inside front cover
Introduction
1
NA.1 Scope NA.2 Nationally Determined Parameters
1 1
NA.3 Decisions on the status of informative annexes
19
NA.4 References to non-contradictory complementary information
19
Bibliography
20
Table NA.1 — UK decisions for Nationally Determined Parameters described in BS EN 1992-1-1:2004 2 Table NA.2 — Recommendations for normal-weight concrete quality for exposure classes XC, XD and XS and cover to reinforcement for a 50 year intended working life and 20 mm maximum aggregate size 15 Table NA.3 — Recommendations for normal-weight concrete quality for exposure class XC and cover to reinforcement for a 100 year intended working life and 20 mm maximum aggregate size 17 Table NA.4 — Recommended values of wmax
18
Table NA.5 — Basic ratios of span/effective depth for reinforced concrete members without axial compression
18
Table NA.6a) — Minimum mandrel diameter to avoid damage to reinforcement for bars and wire 19 Table NA.6b) — Minimum mandrel diameter to avoid damage to reinforcement for welded reinforcement and fabrics bent after welding 19
© BSI 8 December 2005
i
I S B ) c ( , y p o C d e l l o r t n o c n U , 6 0 0 2 T M G 3 0 : 8 5 : 0 1 0 2 b e F n o M , C S I J m a h g n i m r i B f o y t i s r e v i n U , a n a n : y p o C d e s n e c i L
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NA to BS EN 1992-1-1:2004
I S B ) c ( , y p o C d e l l o r t n o c n U , 6 0 0 2 T M G 3 0 : 8 5 : 0 1 0 2 b e F n o M , C S I J m a h g n i m r i B f o y t i s r e v i n U , a n a n : y p o C d e s n e c i L
National Annex (informative) to BS EN 1992-1-1:2004, Eurocode 2: Design of concrete structures — Part 1-1: General rules and rules for buildings Introduction This National Annex has been prepared by BSI Subcommittee B/525/2, Structural use of concrete. In the UK it is to be used in conjunction with BS EN 1992-1-1:2004. NA.1 Scope NA.1.1 This National Annex gives: a) the UK decisions for the Nationally Determined Parameters described in the following subclauses of BS EN 19921-1-1:2004: — 2.3.3 (3)
— 4.4.1.3 (4)
— 6.4.3 (6)
— 9.2.1.3 (1)
— 11.3.5 (1)P
— 2.4.2.1 (1)
— 5.1.3 (1)P
— 6.4.4 (1)
— 9.2.1.4 (1)
— 11.3.5 (2)P
— 2.4.2.2 (1)
— 5.2 (5)
— 6.4.5 (3)
— 9.2.2 (4)
— 11.3.7 (1)
— 2.4.2.2 (2)
— 5.5 (4)
— 6.4.5 (4)
— 9.2.2 (5)
— 11.6.1 (1)
— 2.4.2.2 (3)
— 5.6.3 (4)
— 6.5.2 (2)
— 9.2.2 (2)
— 11.6.1 (2)
— 2.4.2.3 (1)
— 5.8.3.1 (1)
— 6.5.4 (4)
— 9.2.2 (7)
— 11.6.2 (1)
— 2.4.2.4 (1)
— 5.8.3.3 (1)
— 6.5.4 (6)
— 9.2.2 (8)
— 11.6.4.1 (1)
— 2.4.2.4 (2)
— 5.8.3.3 (2)
— 6.8.4 (1)
— 9.3.1.1 (3)
— 12.3.1 (1)
— 2.4.2.5 (2)
— 5.8.5 (1)
— 6.8.4 (5)
— 9.5.2 (21)
— 12.6.3 (2)
— 3.1.2 (2)P
— 5.8.6 (3)
— 6.8.6 (1)
— 9.5.2 (2)
— A.2.1 (1)
— 3.1.2 (4)
— 5.10.1 (6)
— 6.8.6 (3)
— 9.5.2 (3)
— A.2.1 (2)
— 3.1.6 (1)P
— 5.10.2.1 (1)P
— 6.8.7 (1)
— 9.5.3 (3)
— A.2.2 (1)
— 3.1.6 (2)P
— 5.10.2.1 (2)
— 7.2 (2)
— 9.6.2 (1)
— A.2.2 (2)
— 3.2.2 (3)P
— 5.10.2.2 (4)
— 7.2 (3)
— 9.6.3 (1)
— A.2.3 (1)
— 3.2.7 (2)
— 5.10.2.2 (5)
— 7.2 (5)
— 9.7 (1)
— C.1 (1)
— 3.3.4 (5)
— 5.10.3 (2)
— 7.3.1 (5)
— 9.8.1 (3)
— C.1 (3)
— 3.3.6 (7)
— 5.10.8 (2)
— 7.3.2 (4)
— 9.8.2.1 (1)
— E.1 (2)
— 4.4.1.2 (3)
— 5.10.8 (3)
— 7.3.4 (3)
— 9.8.3 (1)
— J.1 (3)
— 4.4.1.2 (5)
— 5.10.9 (1)P
— 7.4.2 (2)
— 9.8.3 (2)
— J.2.2 (2)
— 4.4.1.2 (6)
— 6.2.2 (1)
— 8.2 (2)
— 9.8.4 (1)
— J.3 (2)
— 4.4.1.2 (7)
— 6.2.2 (6)
— 8.3 (2)
— 9.8.5 (3)
— J.3 (3)
— 4.4.1.2 (8)
— 6.2.3 (2)
— 8.6 (2)
— 9.10.2.2 (2)
— 4.4.1.2 (13)
— 6.2.3 (3)
— 8.8 (1)
— 9.10.2.3 (3)
— 4.4.1.3 (1)P
— 6.2.4 (4)
— 9.2.1.1 (1)
— 9.10.2.3 (4)
— 4.4.1.3 (3)
— 6.2.4 (6)
— 9.2.1.1 (3)
— 9.10.2.4 (2)
b) the UK decisions on the status of BS EN 1992–1–2:2004 informative annexes; and c) references to non-contradictory complementary information. NA.2 Nationally Determined Parameters UK decisions for the Nationally Determined Parameters described in BS EN 1992-1-1:2004 are given in Table NA.1.
© BSI 8 December 2005
1
NA to BS EN 1992-1-1:2004
I S h 0 B , t n ) g 1 a c n d , ( e y h n t r , l x t a i e r y s v e g n p e f m r i e n k b o r t h o a i g a i e d e l a d a C l u n h h t a r s u c o d e s e . c t l b o n e h e e e i l l t l . s h l 4 d 0 s i r a y a t 0 A s n i o a 0 , 6 a v . 0 r 2 x a e / r l p t e d : 6 c a e / s e e 0 m m n 1 v 5 c s - n i d h h c o e 0 o 1 t 5 e t u g C n n µ c - i o w e f f a , h C r s o n 2 i n o s o e e r e 9 n h e t e p H r e U 9 c r t s a t c a t l e e e . h a v u , 1 d e e e e e l e e e e g e a e n e s h x u l u u l u l u l u u u t s u l u l u l u 6 t s l l l e l a e w K l r l r r 0 N e m g t o a a a a a a a a a a a o f l a e o U t 0 E v v v v v v v h n r g e v v f v v v r H n 2 S d o a i c u d d d d d d d d d d d g . 5 d e e e e e e e e e i e e e e f , f a 8 r t n T B , d h t s o n o d d d d d d d d i d d d e n o 0 c m i e n n n n n n n n n n s p e f n M i s s e n e e e e e e n e s e e e e i e e p t s l o m s G d a m m m m s t y e e m m m m m m m m s t o r n l y a a b 3 e t b m m m m m m m m m m l p e h p e y m b e m 0 g o o o o o o o c o o o o o h y : i y h c c c c c c c c c c c v m d c t n i e r a e e e e e e e p e e e e 8 r o e e e t t o c r r r r r r r r r r r g c r m r e i n 5 r t a t : s n r c e e e e e e e r e e e e e e v i s e c m 0 d o h a d r 0 r h h h h h h h f f 6 t h t t h t t h t h t t h t t t t e t n r 1 s l u a / o o s e e e e i e e e e e e e e 0 0 5 c t e t n c 0 s r r 1 8 s e s 9 s s s s s s s s s s 5 e , , , , f a h o o n e 2 t U U 0 1 U U U U U U o d s i s C 1 0 f c U U U U b e e F m a n r a o P n M d i o , e t a C i n d S I m n e J r m e m m t o a e c h D e r g y e l d n i l o a c m o r i n N o r u i 1 B t E a . 5 f a P 2 0 o N 1 e M k u / l ¼ m 5 y 0 b r 0 t 0 3 2 0 1 8 0 1 i o a 0 0 0 , , , , , , , 9 , 0 , , 0 9 , , f s 3 1 1 1 1 1 T 1 1 C 0 1 1 6 0 1 r s e n r r S r s e v o t o ¾ o i d f f e C a n i d s l s ¾ e s m d o l s s s n g l U i u a a a s s s s a a i i ¼ r e e e , c e e r r e k a r r r r t f C e u t a d P e ¾ t t o o n t a s i t t g f i s s s n t a a r d e e e s s c t s e K e r r r e a e m h a u t m n t l n s p p p f f i n U i f o r a r a k r r r r e r y i : o t o i m t v m f o o o o o f f s l y — r : f f f a f l p t f e t f s t p 1 x t i s r r r r r c o r r y m . n n a e t i o t o t o t o l o t o o t o m t o i c t e u o t c t i D j f m t c l i s c c c c c C A c c i l r d µ µ k C k k H s N y f f a S f a f a f a o f a f m a m a e f a b f f e i f f f l d e l f a l c ¾ t o l l l v l v l l a l e S o o o o o r n r f o e l a a n i a i a f a f a i a i a i a i a i c ¾ e e o e i e e e e s b n g e o f v t o t n t n t a t i m t u t u l u u l u u p i u a t v n a i i l l l s l n t l r r r r r r r f u u f d , a , a , a , a t a r i p e e T a a a t a a a a a a a P l c P P F n c N V P a P ¾ P ¾ P ¾ P ¾ P u P e s a V V V V V U D e r V i L e ) s u ) 1 ( a l 3 c ( 1 . b 3 2 u . . S 3 . 4 .
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© BSI 8 December 2005
NA to BS EN 1992-1-1:2004
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. y a e e c r r e n y t , t u u h i i n t t f 2 l e t t a a 1 e o . a r r u s u m e e e A q e u b t t s i , e c a 1 i l l u 1 t r o c t 1 e 0 e t f . e s s 0 b i r i h n 5 l A c i l t d a , a n i e 8 i 0 n r e c o s c o S 1 e r e e . c u B p e p e n A r c s v s o , f o b i n o o 7 c o a t d t . s s n d l e A n e e n o c i n a i . c , i o v u i ] t a n 6 g 1 n s . a s y g e i e a s [ r c s r A d s ’ s n t e e e e m y e e n f o a s f d u t n i l e e e e u u 3 t e e c l m . a l r i l K l b e A a a y c m r U a y v v a m r N m v b o e b c r u S T d d r o d e f , o c s e e e d e f o d o l . e e 2 e t d d d i b i n r p e f 0 x a i m n f n n n i r 0 r e e e i t t c i e T e r e o 2 s o s f : r n f m m m r d m u u 1 o l j j a t n a - 4 m m l m e c C s 1 a s 0 . u o o e s a o s s t 0 c c c e e c 2 p e A e h s l . h e e e 5 i l t r r r 8 d r A t m n t s n e e o e u s s a N t S n e u c n h h h a p e e e t m a l t t B 3 a l n m h i r e e e e b s c e o a m m s s s 1 s . r a o T r U U U A f p m U 0 u s t s 0 n r r r o e t e i e t e t t r e e f a a a c o n e m m i i s e r s a i a f i n e g e s h s i s o t d d u u i n n s l e t l f o o a × × h a a a o d t d 5 5 l d v v c r n n f , , n e l r l e e e . e t 1 2 t a t a a t r : , o r f m a e s e h d t d r e u r t N m u e r e n o c c 5 d r o i g o d e c c . m w u d : n n e n a n n . t r 4 s o o t o i r a b c i e i e s d d t e e s b r r n a i : d r u d d n o s d l o e e d o a p 9 e t w f c m e , n r n c r o : . n 0 m i o a i o u o o d N N r f e 3 4 l d n u i n 2 = i . s d i t o s d w u s . 4 i E r 0 n n k r n , p e g r o o 0 n s 4 n r e l a e a e e s e t f t u k n l e d - n - u t r d l l l n u k = / a e , m m m k t t t n ¼ t t a 1 n b b c s , s c e s i a a i d 0 m 9 m m m r o o r o i , u p m f P e 0 n ¼ r m s d P i c P f o f o T T c 0 0 0 r f e t o e d e u s e n d n m u a o a l r i r a t e i n a r v o v d o : P f i t o c n d s s a o e n n c c n o o i m i f l d i u i d a t m d s t t r p n s a ¾ m s e , , , i e n r r r b t a , t m u u u n e l n e u g i d d d i c c c c D s n m l m m i % % % c n s y a l o r f f f f l a s s r r o o f o o u o a n e i t s r n g t u v d e e e e c e o i , n u u u u i u u n l l l l t s s e i r l d a e e a a a a t r a u m o c N D p ¼ V S v t V V V e s u ) a 7 l c ( b 6 u . S 3 .
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© BSI 8 December 2005
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© BSI 8 December 2005
NA to BS EN 1992-1-1:2004
I S B ) c ( , y p o C d e l l o r t n o c n U , 6 0 0 2 T M G 3 0 : 8 5 : 0 1 0 2 b e F n o M , C S I J m a h g n i m r i B f o y t i s r e v i n U , a n a n : y p o C d e s n e c i L
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o f n t a o h t d e n s o i e e n t u e l b u a i v y b r e a t s v i m i t d c a e i r P r t e s M h e t r 0 0 n e n 5 r o o i o e s i k c m c a , k n s e P y e e e e a a f d u l u l u l u P h d 2 l i K M u a a a a t u c M U 0 i v v v v g ¼ 0 / 0 w 5 4 r 0 s e d e d e d e d e 5 l h 1 d d d d k e t > . 0 e k r t s n k t 0 y e n e n e n e , y u f s f f n m m m m 0 r h e s h t + o t m m m e m m i i f o o o o v 4 6 o w , , c c c i c w n e e e e g 0 0 e s s m r r r r l v . 7 g = = 7 8 l i e e e e e e d 8 e 3 4 , , t e g e 6 i n h h h h t t t t t s s k k 0 0 s e 6 d e e e e = = = = s r o u o 1 2 5 6 r o h e D n e s s s s F k k k k F t b P b U U U U
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e e s t i s d n e g b t y i e d a s b i g e n t a n h r t , a s i r t a d t e m o e 2 d u e k e o e h ) r f l e P v r b 1 a d m n c i c w t i u e o i t d É t r e M r s s o d h u i e e , c o t ( F e s b s n t h c e f k r 0 e s e n . h r e 0 y o s i o e t o u p t e h g i o f e 0 t 6 f c p i r e d m t n h s d b t 2 o e f d l n s t e r n s c o i p d i t o U c t o s r i n e c p , h r s n b e e f o a e h n s l k s a p s Ö T r e r t a c e e w d e c e d r n h u b o Ú f f e . u c l n r s v t r r c t s o t e d s e r o t e e a u o n l o r e o c i l d a o e c u r a t f a o f e d r o i s r f s h e l e a e t t c u d f h h o v o h g n e P 5 t r l d s f s i o s t n o m g t , d e y n m a 5 , h c r p i o r n s a , l e y M 0 e e e i e y f v 0 c s a h r p e l e s r n g c u i h e n 0 w s s e a , h n e h n 0 > o t i c g d t c e x a e h m t i c e t s r o ) 1 a µ x f e r i , t o r s s 6 µ e d r a h e t i t a e o c a o i T e s t h r r f c r < n f c t r s i d i n t s s s . m r a n k s r e e e s , h s e u d e 5 p t o g , u n e e o c d s s c t t e t i d k s e r c s l k n q a R e c 5 v s c 2 c f e , f d b h s c v Ö e p p b e o 5 e o i r e s K 1 a , e o 0 u , n V m s h l e r t a l i e t o s r r < É f o d t 0 d e U 0 m s r s i t b o – t a f e h w d e t . d f r e w k o e s e g c c o f b t r d o t n 1 a c n h r h f r k ) 1 d p n a n t t I e n s e d f h i c g c n r o p t i 5 . i u p µ ( o a = a , u f e g Ö e c s h f t e l n o i t d a s h s d w ) s s o s g 0 m Ö e h 0 s d n i l u a a e a r e m o t i t r d c P < o r ) c 0 : s d t v h l r d o c e r c e a u e < µ 2 d a d o f a o l t 5 s 0 2 r r e n f e r . , / e o t ( 0 a e v u . . e t s h d n h o a t e o e a k r a c f b m c i c ) h s f e d v e t c w f a f 2 v . a o d r o t % : 0 ) 6 f e . i t r e o 5 n g f u e n 1 / c e e y h – l 5 f h r f f t a o , . 0 t / p t e o h ) , i i 0 s – l 2 o i o b p n o s e h o p m 1 , d f b i a e f d 0 5 t , s s s t ( c c 8 p m y t 4 s s o 0 r i s e 3 f r e c d t t e u a r s e a > s s t a n 4 8 Ö s / s i o n e w n c d e e e e e w s C r h , a o p e n a s h e 5 n s c o – : , 0 t n v e > t . o n l r m e n e f k c r t f o b e r o e l e e i o p t s r Ö 1 r i É e l a 0 ( i v i s h i u u h a s e p p c / e h s r y w t e s a o ( e p e t t = = w f c t t s = w r c t p o + 5 g t b c l c c m e t a t m o 2 5 o h a c c u u n Ö o r x e o n e l e 1 1 , , c a f 1 b e h o 1 s i b É É µ 1 ( 1 2 w Ö t o a c o N t s p d I ( c p e m b c i S c É H s d e n u l a a ) v n N e ) o i b N . h t n t a a 1 i . d 1 s . n n e 0 1 6 e e . k ( v a 6 , m t ( i g ) m y r s N o b o n s c e a . o d e ) u 1 r e i l s N 1 b a . e 3 d i . s e 6 ) v ( o r r 6 c c s ( p N e s h o e x n r d n b . t o E 0 o u s i i s E e s ) n 1 . k a s s i s N c 6 . a e É e ( t r n r 1 e d w p 1 = p v n c x . 1 x i É E g a µ E 6 ( r e t e m a r a P d w e c n µ i m r d e n t e a 1 D É y f l l o a s n e o u i t l a a N V e s u ) a 3 l c ( b 3 u . S 2 .
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n m u n n l o c m m l u u a l l o c o c n r / r e 2 1 t e e k g c n n f i d d r c 2 / e f o c n 3 o c É n a ¾ k 5 c k k a a r / , 5 o f f r Ú 3 0 o 8 Ú r r 1 u t f , t 0 o f o , = f E o 5 0 0 1 c s o c , 5 5 4 1 a = = 0 x e , , , , g k 1 1 1 c , n m 1 k , d i = d n 0 = , a 0 , 4 , = = = R m 1 R k 1 l f 1 0 ¶ ¶ ¶ C v k V r e r t t o r e f r n a e e 1 m t e c a k u a h r f j o s e d a d Ú n P t m e g h a a u h n t d o e t i e c n i c m h f n f i n x o c m i m o o x a a v n f r m a t d r , m r s , k u t t c e s , a e d u i m p t l d e s R e f n o f e u R h e e c o r V n o U D a C s ¶ v r k f e g n a r y f f g l e m e e f u o o t l o t t n n l c m o s s e r e a i i s i a e u n o m e e e h l v h d m o g f o u l u u c i e i l l e c n i t n n n c r i a a a a a u h u o h r e e N R V V V p T p t T p e r p e s u ) a 4 l c ( b 4 u . S 2 .
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o d n e s d e i a o b e t l n t l h e d e h u t o f o m e f h e c o s c r t e o f f c n a a e e n f i h e t e m r h e t c h m c r o o i r f m h o n f i w r e d t f r 5 , a d e 1 e e 3 r e n h u l u t d t n l a a a e h e a v v t s m a d i d s c 3 r e d e , e s s e d 0 i p l h e n d s t n e n e i e h n o m t d I z m m e s . r e o m s i n h o e c c l u t e m q n e u n r e u r l i . e r e o n h h 5 c d , r / t t e e m 1 g a c u e e e l a l s s = n o r k l a p o c U U
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d e c t a % i o c + t 0 o s 5 r s e a v d v o n e c d a d c e % d m t n e + m r 5 a c 4 n n S i ) o X e l e c e z d d i t e v e n s s t c d a a e g n % n g t i D + s i a s 0 X g s e e , e r d 4 C r t s t e X g r n e v g e s a p l d a c e g v s % n i s m i u d q + a u l u e 5 c i m l c d 3 n n e x r a i ( a v t e e u t s m n d e e c o r % c p m m n + x m e c e r o c 0 o d 3 r 0 f n e o 2 i f n v d e g e r i y n d t o s a i e c t l e c d % a f ) v d + u i e e 5 q l d d 2 c n g e n % e t i + m v e k e r r i m d c o n o c m c n c e % o w ( r + c d r e t e v 0 2 h d o c g n l i v e t e a e n d i w c n % l i m a r o + N 5 m a 1 r e
o y n 0 n r 5 / i o t o a t f r n a b s s o e i n e p n f m b y e t o t m i C t n o c a e d m n e e c m r o f m n o i c e a s e r n o R i t i — d n o 2 . c A e N r u s e o l p b x a E T
. s n o i t i , / , / , d / 5 n o 5 4 8 0 5 0 c 5 3 , 2 5 2 , , d \ \ \ \ \ \ \ C 0 C 0 C 0 n u o r 0 0 0 , 8 , 6 , 6 g e 0 3 0 3 5 3 i v 5 4 3 , / , / , s / 0 0 4 2 5 8 5 s e 4 , 3 4 , 2 4 , r g \ \ \ \ \ \ \ C 0 C 0 C 0 g a n i e 0 0 0 0 0 0 t , , , , , , e 5 2 0 2 5 2 5 8 5 8 0 8 3 3 3 3 3 3 c 3 , / 3 , / 2 , / 5 , / 4 , / 4 , r / 5 0 5 5 5 5 0 2 0 n 8 5 5 o c 2 5 , 2 5 , 2 5 , 4 3 , 3 4 , 3 4 , d \ \ \ \ C 0 C 0 C 0 C 0 C 0 C 0 n a s n 0 0 0 0 o , 0 , , , , i 0 0 4 5 4 0 4 0 t 0 6 5 i 2 3 3 3 3 3 3 3 d , , 4 , 3 , / 5 / 0 / , 3 / 0 / 0 n 5 6 C 8 6 2 0 8 5 o R c 2 , r 2 , 3 5 , 2 5 , 2 5 , \ \ C 0 o C 0 C 0 C 0 C 0 — — — w a h t / e z , 0 5 , 0 , 0 , 0 , 0 2 0 8 5 8 0 8 e 5 8 0 2 3 4 3 5 3 4 3 4 3 e 3 r , C / , / , / , / , / 0 f 5 0 0 0 8 6 R 2 5 0 4 5 4 2 4 o t 2 , r 3 , 4 , 3 , 3 , d C 0 o C 0 C 0 C 0 C 0 — — — \ \ e t c r e j o 0 b 0 0 , , u 0 , s 0 3 0 0 6 3 0 6 4 2 e 4 5 , , 3 t / / 0 , C / 5 3 2 5 e 5 5 6 3 5 R 0 r c 4 4 2 , C , r , n C 0 R C 0 o \ C 0 — — — — — — o c f o 0 0 y t i , 4 l 5 3 0 C a 5 , u / 5 q R 0 4 e 4 , r h — C 0 o — — — — — — — \ t g , n 7 . i , s t 0 e i c e , l p l 5 r 5 e p s 2 o 2 / a r 0 0 C o t f f 2 4 e C 2 R — — — — — — — — — l A e x h e t n B o , , n V t S S A I l l , A A t I I e 2 B B B B p c I I I I 0 I I e I I V V e 0 c , C , I , C , I 2 h : x t , , V V A A 1 e I I P P B B n l l l l I R B I I R B I i 0 l l l l , S I I , S I I 0 n A A A A I I I I I I e 5 v 8 i d d g S n n y e B l a a t y y t o l l t e t t n e e r e e e e y y e e t t c r t t d i w a i r w n n a a a a r o r r r d d r a c c c m o m e i l i e i , i , l t t d d e t c c y y m e o m h r r y r u y y r r o u e y r e e e y t b D p w W d M h C d M h W d C d t d a l u h o t h s s 3 1 2 3 4 1 2 e t e C C C C D D D c a c n X X X X X X X i d e r e n n f i o e i t n g \ R r s e d n a d o n e e o i d t d 1 2 n i i i e d i s a o e r c s c E E r o o u b o u r l o m w u r T T l r d c l o a d r a n r O O h x e o o h r n N N C i c C i c e c f s
© BSI 8 December 2005
, 0 , 0 , 0 4 4 0 5 6 5 4 3 3 3 3 3
n o i t a n i b m o c r o t n e m e c m u . m C i n R i m n o , i t o i t a n a g r i c s / e w d e m h u t y m b i x e a l m b a , t s s s i a h l c t n h t i g d n e e r t a t c s i d f o i n s d m n r e a t 2 n 0 i 0 e 2 : l b 1 a t 0 0 s i 5 h t 8 n S B i d e m o b r i f r c n s e e d k a d t s n i a e . 2 t . 0 e 1 ) r e ( 3 0 c l : n b d 2 a n 1 - o c T a 0 , ) 0 d e 2 1 5 t 0 ( 8 a 0 3 S n 2 . B i : 1 g . 2 . s 0 0 4 e . m 0 0 4 d o 0 5 , f r d 2 : 8 3 n e 1 - S 0 e d n 6 B 0 0 n 2 : k a e t 2 i 1 - s m 1 N d - i m e o E e 2 t n 9 e c e S i f r 9 e 1 r B d c t n n o t e e o r N c l E a d a m v r S i o s e B e u f n p e i g q n y e o c t e s s e e h , d s n o v n T i e d . o t d i e 3 a c d t i i n m d b % n e / f n g o o k m c m s o n c e m e i r / u o t l t c u n a e n s e o e v r t p m r e n x e o h o E C F T c a b c d
15
NA to BS EN 1992-1-1:2004
I S t v B n e ) e d d e c ( m t a % , e i + y c c 0 o s 5 p r s o o f a n d v C i n e d e d a d r e e % l l o m t t m e o r + r r c 5 t n i n 4 n e ) l o o v e c c o d v c t e ) e e d n s t d d a U n e g % n n , a u i g + s i n 6 S i s 0 0 t s e e 4 r 0 X n d t o t 2 d c s n v ( e r l T n e a e p e a d z g i M D v i n u % G X s i + d , t e u q e 5 3 C l 0 c d 3 : X a n n g 8 s e i ( a v 5 e r t e e : n t d 0 s s g e e g 1 l a a m r c % n + 0 c e c o m r 2 e o c 0 3 u r d b u f e n m i n e s i g v F o x e r i e s d p a o n x t e % c o e m ) d + d v r M m e e 5 o d d , f 2 c C y m % n e t 0 S m v 2 + I i e n m d J l i a d m o n ( c e % m u q r + a e a r e e 0 h t f v 2 g e i l o r c n i c g l v e n i n a m n d r o i i k c % B t r m o + f h o N 5 o g w 1 i y e d t i w e s - d n r l o / e a n t i t b e v n t e a s i m n e n m i n r i p b o y U n r e t m C , a o a r c o e n f y a s 0 5 n n o a : i y t r p a o o d f a s n C n e i o d m t i e s m d n o n o c e c e e c i r R u L s c
c
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. s n o , 0 , 0 , 0 i t i 0 8 5 4 0 4 3 3 3 5 , 3 , d / 0 / , 3 / 0 n o 0 4 8 0 5 c 5 4 , 2 5 2 , , d \ \ \ \ \ \ C 0 C 0 C 0 n u o r 0 0 0 , 8 , 6 , 6 g e 5 3 0 3 5 3 i v 5 4 3 , / , / , s / 5 5 3 2 5 8 5 s e 4 , 3 4 , 2 4 , r g \ \ \ \ \ \ C 0 C 0 C 0 g a n i e 0 0 0 0 0 0 0 0 t , , , , , , , , e 5 4 0 4 0 2 5 2 0 2 5 2 5 8 0 8 3 3 3 3 3 3 3 3 c 4 , / 4 , / 3 , / 3 , / 3 , / 2 , 4 , / 4 , r / / 0 5 5 8 5 5 5 0 5 0 2 0 n 5 0 2 5 o c 3 5 3 4 , 3 5 , 2 5 , 2 5 , 2 5 , 2 5 , , 3 4 , d C 0 C 0 C 0 C 0 C 0 C 0 — C 0 C 0 n a s n 0 , 0 , 0 , 0 , 0 o , 0 , i 6 5 4 0 4 5 4 0 4 t 0 6 5 i 3 3 3 3 3 3 5 d , 4 , 4 , 3 , 3 , / 5 / , 3 / 0 / 0 / 0 / 0 n 0 4 5 5 8 2 8 5 o c 4 , 3 4 , 2 5 , 3 5 , 2 5 , 2 5 , C 0 C 0 C 0 C 0 C 0 C 0 — — — w a h t / e z , 0 , 0 , 0 , 0 , 0 , 0 8 5 8 0 8 5 8 0 8 e 0 8 5 3 5 3 4 3 5 3 4 3 4 3 e 6 r , / , / , / , / , / , / 5 f 5 0 0 0 0 0 3 5 3 5 4 0 4 5 4 2 4 o t 5 , 4 , 3 , 4 , 3 , 3 , d C 0 C 0 C 0 C 0 C 0 C 0 — — — e t c e j b u s e t e r c n — — — — — — — — — o c f o y t i l a u q e h — — — — — — — — — t g n . i s t e i c e l p l p e s a r o t f e f — — — — — — — — — l A e x h t e n o n , , , t S S S A l l , A A A I I I e 2 B B B B B B c I I I I I I 0 I I I I I I V V V e 0 , C , I , C , I , C , I 2 h : t , , , V V V A A A 1 I I I P P P B B B n I R B I I R B I I R B I i 0 , S I I , S I I , S I I 0 n I I I I I I I I I e 5 v 8 i s g S t l t h e B c s a t y o l s e a t e r l y r e e e i c a p r d t d n s r n a a r o c p o r , c m l s s o n t a , e a b t e e r t e y d d h i i r u n n n t b A b o c W d T a o z t d a l u h o t h s s 1 2 3 e t e S S S c a c n X X X i d e r e n f i e r \ R n e o t d 1 2 i a e s c E E o w u r T T a r d O O e n o N N S i c
n o i t a n i b m o c r o t n e m e c m u . m C i n R i m n o , i t o i t a n a g r i c s / e w d e m h u t y m b i x e a l m b a , t s s s i a h l c t n h t i g d n e e r t a t c s i d f o i n s d m n r e a t 2 n 0 i 0 e 2 : l b 1 a t 0 0 s i 5 h t 8 n S B i d e m o b r i f r c n s e e d k a d t s n i a e . 2 t . 0 e 1 ) r e ( 3 0 c l : n b d 2 a n 1 - o c T a 0 , ) 0 d e 2 1 5 t 0 ( 8 a 0 3 S n 2 . B i : 1 g . 2 . s 0 0 4 e . m 0 0 4 d o 0 5 , f r d 2 : 8 3 n e 1 - S 0 e d n 6 B 0 0 n 2 : k a e t 2 i 1 - s m 1 N d - i m e o E e 2 t n 9 e c e S i f r 9 e 1 r B d c t n n o t e e o r N c l E a d a m v r S i o s e B e u f n p e i g q n y e o c t e s s e e h , d s n o v n T i e d . o t d i e 3 a c d t i i n m d b % n e / f n g o o k m c m s o n c e m e i r / u o t l t c u n a e n s e o e v r t p m r e n x e o h o E C F T c a b c d
© BSI 8 December 2005
NA to BS EN 1992-1-1:2004
I S B ) c ( , y p o C d e l l o r t n o c n U , 6 0 0 2 T M G 3 0 : 8 5 : 0 1 0 2 b e F n o M , C S I J m a h g n i m r i B f o y t i s r e v i n U , a n a n : y p o C d e s n e c i L
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e d d e c r t o i a % f c + t 0 o s n s 5 e a m d v n e e a d c d c r e % m t o f m e r + n n c 5 i i n 4 e ) l o r e c e d v o t e t e d s t r g a c e i % n n g + v s i s s 0 o e 4 c e e r d t d i z s t n v n s e e e a e r p l d a c t g v C a n i % X g i u + d q s u e 5 s e l r c d 3 a g l g i n n c a ( a e v e t e t d r m n e e c r % u c s u m n + o m e c r o p i c 0 3 o d x x f a e i n e n v r m e g e r i o d f o s m t e c y d % m c t ) d + i l 0 v e e 5 a 2 d d 2 c n u d % q n + e v e a n m e t m d i e m o e f c r i c c % c l ( e r + n g r 0 o n e 2 c i v o c t k l v h r a e o g n d i w i c e % o + d m w e N 5 l d 1 a
m n e r t n o i n t i o n / t b n a r r e n s a o e m i e p f y e b t s y C m o n 0 c o 0 i t 1 a a d n e m a m s n o i o c t e i R d n o — c e 3 r . u A s N o p x e E l b a T
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r o 0 , 5 8 2 3 , 5 / 0 8 6 3 2 , C C 0 R r o , 0 0 0 3 4 , 0 / 5 2 5 4 3 , C C 0 R r o , 0 5 2 3 4 , 5 / 0 5 5 4 3 , C C 0 R r o 0 , 4 0 3 5 , 0 / 5 0 5 4 4 , C C 0 R
r o 0 , 0 6 2 3 , 0 / 5 5 6 3 2 , C C 0 R —
— , 7 , 0 , 5 r 2 / o 5 0 0 2 2 4 C C 2 R — \
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© BSI 8 December 2005
2 C X
. s e s s a l c e r u s o p x e S X d n a D X n i d n a e f i l g n i k r o w d e d n e t n i r a e y d e r d n u h e n o a h t i w e t e r . c s e n o i c l f p o p a n o t i f e t c l e e l h s t e o r t o f l l 2 e c 0 e 0 2 : h t 1 n 0 i 0 n e 5 v 8 d i n g S a t e B o t t e e r e w c d n c o a i l m c y c e e y r h b C d t t d a l u h o t h 4 s s e e C t c X a c n i d e r e n f i e \ R 1 2 E E T T O O N N
n o i t a n i b m o c r o t n e m e c m u . m C i n R i m n o , i t o i t a n a g r i c s / e w d e m h u t y m b i x e a l m b a , t s s s i a h l c t h n t i g d n e e r t a t c s i f d o i n s d m n r e a t 2 n 0 i 0 e 2 : l b 1 a t 0 0 s i 5 h t 8 n S B i d e m o b r i f r c n s e e d k a d t s n i a e . 2 t 1 0 e . 0 r e ) l 2 : c n b 3 ( a d 1 - o c T n 0 , a 0 d e 2 ) t 0 1 5 a 0 ( 8 n 2 : 3 S g B i . . 2 s - 1 0 0 e . m 0 0 4 d . o 0 5 4 r f d 2 : 8 , n e 1 - S 3 e d 6 B 0 k n 0 n 0 a e 2 i 2 : t m 1 s m - i N d 1 e o E e - t n 2 e c e S i f r 9 e 9 r B d c t 1 n n o t e e r N o c l a E d a m v r i o s e S e u f n p B i g q n y e o s c t e e e e s s n o , v d h n T o i t d e d i e 3 . a t c i i n % d m n d b e / f n g o o k m c m s o n c e m e i r / u o t l t c u n a e n s e o e v r t p m r e n x e o h o E C F T c a b c d
17
NA to BS EN 1992-1-1:2004
I S Table NA.4 — Recommended values of wmax B ) Exposure Reinforced members and prestressed Prestressed members with bonded tendons c ( members without bonded tendons (frequent load combination) , (quasi-permanent load combination) y mm mm p o 0,3a 0,2 C X0, XC1 d 0,3 0,2b e XC2, XC3, XC4 l l o XD1, XD2, XD3, XS1, 0,2 and decompressionc r t n XS2, XS3 o c a For X0, XC1 exposure classes, crack width has no influence on durability and this limit is set to produce acceptable appearance. n U b In the absence of specific requirements for appearance this limit may be relaxed. , For these exposure classes, in addition, decompression should be checked under the quasi-permanent combination of loads. 6 c w = 0,2 mm applies to parts of the member that do not have to be checked for decompression. max 0 0 2 In the absence of specific requirements (e.g. water-tightness), it may be assumed that limiting the T calculated crack widths to the values of w max given in Table NA.4, under the q uasi-permanent combination M of loads, will generally be satisfactory for reinforced concrete members in bu ildings with respect to G 3 appearance and durability. 0 : 8 The durability of prestressed members may be more critically affected by cracking. In the absence of more 5 : detailed requirements, it may be assumed that limiting the calculated crack widths to the values of wmax 0 given in BS EN 1992-1-1:2004, Table 7.1N, under the frequent combination of loads, will generally be 1 0 satisfactory for prestressed concrete members. The decompression limit requires that all parts of the 2 bonded tendons or duct lie at least 25 mm within concrete in compression. b e F n Table NA.5 — Basic ratios of span/effective depth for reinforced concrete members without o axial compression M , Structural system Concrete highly stressed Concrete lightly stressed K C Ô = 1,5 % Ô = 0,5 % S I J Simply supported beam, one- or two-way 1,0 14 20 m spanning simply supported slab a h End span of continuous beam or one-way 1,3 18 26 g continuous slab or two-way spanning slab n i continuous over one long side m r i 20 30 B Interior span of beam or one-way or two-way 1,5 f o spanning slab y t 1,2 17 24 i Slab supported on columns without beams s r (flat slab) (based on longer span) e v Cantilever i 0,4 6 8 n U NOTE 1 The values given have been chosen to be generally conservative and calculation may frequently show that thinner members , are possible. a NOTE 2 For two-way spanning slabs, the check should be carried out on the basis of the shorter span. For flat slabs the longer span n a should be taken. n NOTE 3 The limits given for flat slabs correspond to a less severe limitation than a mid-span deflection of span/250 relative to the : columns. Experience has shown this to be satisfactory. y NOTE 4 The values of k in the table may not be appropriate when the form-work is struck at an early age or when the construction p o loads exceed the design load. In these cases, the deflections may need to be calculated u sing advice in specialist literature, e.g. the C Concrete Society’s report on deflections in concrete slabs and beams [3] and an article for the Magazine of Concrete Research d entitled Are existing span to depth rules conservative for flat slabs? [4]. e NOTE 5 The ratio of area of reinforcement provided to that required should be limited to 1,5 when the span/depth ratio is adjusted. s n This limit also applies to any adjustments to span/depth ratio obtained fr om Expressions (7.16a) or (7.16b) from which this table has e been derived for concrete class C30/37. c i L
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© BSI 8 December 2005
NA to BS EN 1992-1-1:2004
I S B ) c ( , y p o C d e l l o r t n o c n U , 6 0 0 2 T M G 3 0 : 8 5 : 0 1 0 2 b e F n o M , C S I J m a h g n i m r i B f o y t i s r e v i n U , a n a n : y p o C d e s n e c i L
Table NA.6a) — Minimum mandrel diameter to avoid damage to reinforcement for bars and wire Bar diameter, Ì
Minimum mandrel diameter, Ìm,min for bends, hooks and loops (see BS EN 1992-1-1:2004, Figure 8.1) mm
mm k
4 Ì
>16
7 Ì
16
NOTE Scheduling, dimensioning, bending and cutting of reinforcement should generally be in accordance with BS 8666.
Table NA.6b) — Minimum mandrel diameter to avoid damage to reinforcement for welded reinforcement and fabrics bent after welding Location of transverse bar defined as a multiple of the bar diameter bar diameter, Ì mm
Minimum mandrel diameter, Ìm,min mm
Transverse bar inside or outside a bend or centre of a transverse bar k4 Ì from a bend
20 Ì
Centre of transverse bars >4 Ì from a bend
4 Ì for Ì k 16 7 Ì for Ì k 20
NOTE Scheduling, dimensioning, bending and cutting of reinforcement should generally be in accordance with BS 8666.
NA.3 Decisions on the status of informative annexes BS EN 1992-1-1:2004 informative Annexes A, B, D , F, G, H and I may be used in the UK. BS EN 1992-1-1:2004 informative Annexes E and J are not applicable in the UK. PD 6687 provides an alternative informative Annex J that is acceptable for use in the UK. NA.4 References to non-contradictory complementary information NA.4.1 General references The following is a list of references that contain non-contradictory complementary information for use with BS EN 1992-1-1. — PD 6687:2005, Background paper to the UK National Annexes to BS EN 1992-1-1 and BS EN 1992-1-2 . — Guidance on the use of stainless steel reinforcement, Technical Report 51, Concrete Society, 1998 [1]. — Post-tensioned concrete floors — Design handbook, Technical Report 43, The Concrete Society, 2005 [2]. — Deflections in concrete slabs and beams, Technical Report No. 58, Concrete Society, 2005 [3]. — VOLLUM, R.L. and T.R. HOSSAIN, Are existing span to depth rules conservative for flat slabs?, Magazine of Concrete Research, vol. 54, issue 6, 2002 [4]. — Standard method of detailing structural concrete — A manual for best practice, The Institution of Structural Engineers/Concrete Society, [5]. NA.4.2 References for conforming to UK Building Regulations 2000 The Building Regulations 2000 [6] requires that a bu ilding shall be constructed so that in the event of an accident the building will not suffer collapse to an extent disproportionate to the cause. Approved Document A to the Building Regulations 2000 [7] cites the details and design approaches in BS 8110 as being one acceptable method of meeting this requirement. BS 8110 will be superseded by BS EN 1992-1-1, however, not all the requirements of BS 8110 feature in BS EN 1992–1–1. Therefore, those requirements of BS 8110 that are not covered by BS EN 1 992-1-1 have been incorporated into PD 6687 as non-contradictory complimentary information.
© BSI 8 December 2005
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NA to BS EN 1992-1-1:2004
I S B ) c ( , y Standards publications p o BS 8110 (all parts), Structural use of concrete. C d BS 8550-1:2002, Concrete — Complementary British Standard to BS EN 206-1 — Part 1: Method of e l l specifying and guidance for the specifier. o r BS 8550-2:2002, Concrete — Complementary British Standard to BS EN 206-1 — Part 2: Specification for t n o constituent materials and concrete. c n BS 8666, Scheduling, dimensioning, bendin g and cutting of steel reinforcement for concrete. Specification. U , 6 BS EN 1990:2002, Eurocode — Basis of structural design. 0 0 BS EN 206-1:2000, Concrete — Part 1: Specification, performance, production and conformity. 2 T PD 6687:2005, Background paper to the UK National Annexes to BS EN 1992–1–1 and BS EN 1992-1-2. M G 3 Other publications 0 : 8 [1] CONCRETE SOCIETY. Guidance on the use of stainless steel reinforcement, Technical Report 51, 5 : Camberley: Concrete Society, 1998. 0 1 [2] CONCRETE SOCIETY. Post-tensioned concrete floors — Design handbook, Technical Report 43, 0 Camberley: Concrete Society, 2005. 2 b [3] CONCRETE SOCIETY. Deflections in concrete slabs and beams, Technical Report No. 58, Camberley: e F Concrete Society, 2005. n o [4] VOLLUM, R.L. and T.R. HOSSAIN. Are existing span to depth rules conservative for flat slabs?, M Magazine of Concrete Research, vol. 54, issue 6 , 2002. , C [5] INSTITUTION OF STRUCTURAL ENGINEERS/CONCRETE SOCIETY. Standard method of S I detailing structural concrete — A manual for best practice, London: The Institution of Structural J Engineers/Concrete Society, 2006. m a [6] UNITED KINGDOM. The Building Regulations 2000 . London: The Stationery Office. h g [7] UNITED KINGDOM. The Building Regulations 2000 Approved Document A: Structure. London: The n i Stationery Office, 2004. m r i B f o y t i s r e v i n U , a n a n : y p o C d e s n e c i L
Bibliography
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© BSI 8 December 2005
I S B ) c ( , y p o C d e l l o r t n o c n U , 6 0 0 2 T M G 3 0 : 8 5 : 0 1 0 2 b e F n o M , C S I J m a h g n i m r i B f o y t i s r e v i n U , a n a n : y p o C d e s n e c i L
blank
NA to BS EN 1992-1-1:2004
I S B ) c ( , y p o C d e l l o r t n o c n U , 6 0 0 2 T M G 3 0 : 8 5 : 0 1 0 2 b e F n o M , C S I J m a h g n i m r i B f o y t i s r e v i n U , a n a n : y p o C d e s n e c BSI i L 389 Chiswick High Road
London W4 4AL
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