UDC

CECS 102:2002 Technical specification for steed structure of light-eight Buildings ith gabled frames 2003 1

Technical specification for steed structure of light-eight Buildings ith gabled frames CECS102:2002 2003 3 1 2003 2

2001 45 2001 CECS 102:98 1998 1 2 3 4 5 6 7 8 9 10 11 12 13 14 T 15 16 17 [1986]1649 2002 CECS102 2002 CECS102:98 3.1.3 3.2.1 3. 2.2 3.2.3 3.2.4 3.3.2 7.2.9 7 2.19 8.1.4 8.2.5 19 100044 3

2002 11 20 4

1... 7 2... 8 2.1... 8 2.2... 8 3... 12 3.1... 12 3.2... 13 3.3... 14 3.4... 17 3.5... 18 4... 19 4.1... 19 4.2... 20 4.3... 21 4.4... 21 4.5... 22 5... 23 5.1... 23 5.2... 23 6... 27 6.1... 27 6.2... 37 6.3... 37 6.4... 39 6.5... 40 6.6... 41 7... 42 5

7.1... 42 7.2... 44 8... 50 8.1... 50 8.2... 50 9... 56 9.1... 56 9.2... 56 A... 58 B Z... 64 C... 68 D... 71 E... 77 F... 82... 83 6

1 1.0.1 1.0.2 20t A1 A5 3t 4.4.3 1.0.3 GB 50068 GB T50083 GB 50009 GB 50011 GB 50017 GB 50018 GB 50205 1.0.4 7

2.1.1 opening 2 2.1 2.1.2 opening building 80 2.1.3 pariial1y enc1osed bulldinr 5 20 2.1.4 enclosed building 2.1.5 edge strip A A.0.2-2 A.0.2-3 2.1.6 end Zone A A.0.2-1 2.1.7 effective ind 1oad area 2.2 2.2.1 8

F H M M M l f M M y0 N N E N 0 P P1 P f q y R u V Vd τ cr 2.2.2 f f y fv f V 2.2.3 A 9

a B bs d 0 d 1 e W e t H h h W h C he he1 h e2 I b I C I e I l I r L l fz S t W W We W el Wen Z 2.2.4 K 10

K r Kσ β mx γ R λ P λ W µ γ ξ t ϕ b ϕ b γ 11

3 3.1 3.1.1 3.1.2 3.1.3 GB 50009 γ 0 γ 0 S R (3.1.3) 50 1.0 25 0.95 S R 3.1.4 GB 50011 S E R/ γ 3.1.4 RE S E γ RE 3.1.5 γ RE γ RE 0.75 0.75 0.80 0.85 0.85 0.90 12

3.1.5 3.1.5 3.1.6 0.05 3.1.7 GB 50009 3.4 3.1.8 3.2 3.2.1 GB 50009 3.2.2 ( ) 0.5KN/m 2 60m2 0.3KN m 2 3.2.3 A 3.2.4 GB 50011 3.2.5 1 2 3 4 GB 50009 5 13

3.3 3.3.1 1 GB T 700 Q235 GB T 1591 Q345 2 Q235B Q345A Q235A 3 B C 3.3.2 1 3.3.2-1 2 3.3.2-2 3.3.2-2 N/mm 2 f t mm f C f V f Q235 E43 16 215 215 185 125 16 40 205 205 175 120 Q345 E50 16 310 310 265 180 16 35 295 295 250 170 1 GB T 5293 GB/T 12470 2 GB 50205 200 f 14

8mm f C 3 4 3 3.3.2-3 f t 3.3.2-3 n/mm 2 C A B b f t f b V f b C f b t 4.6 170 140 4.8 5.6 210 190 f 8.8 400 320 Q235 Q345 b V 140 180 8.8 400 250 10.9 500 310 Q235 Q345 305 405 470 385 510 590 1 A d 24mm l 10d l 50mm B d 24mm l>10d l 150mm d l 2 A B C GB 50205 f b C f a t f b t f b V f b C 15

4 GB 50017 5 GB 50018 6 4mm 1 2 5 GB 50018 C 7 3.3.2-1 3.3.2-2 3.3.2-3 1) 0.85 0.6 0.0015. 1.0 0.5 0.0025. 1.0 0.70 <20 =20 2 0.85 3 0.90 4 0.90 5) 0.85 8 GB 500l7 16

3.4 3.4.1 3.4.2 3.4.2-1 3.4.2-2 1/3 3.4.2-1 h h/60 h/100 h/400 h/180 3.4.2-2 L/180 L/240 L/400 L/150 L/240 L/150 L/100 L/100 L/180 mm 1 L 2 2 17

3.5 3.5.1 1 1.5mm 4mm 3mm 2 GB 50018 6.1.1 1 3.5.2 1 3.5.2-1 3.5.2-1 180 220 2 3.5.22 3.5.2-2 350 250 300 400 1 2 3 250 18

4 4.1 4.1.1 4.1.2 4.1.2a 4.1.2b 4.1.2c 4.1.2d 4.1.2e 4.1.2f 4.1.2 4.1.3 H 4.1.4 5t 19

4.1.5 1/8 1/20 4.1.6 4.1.7 4.1.8 4.2 4.2.1 1 2 3 4 4.2.2 9 36m 4.5 9.0mm 12m 6 9m 0.5 1.2m 20

4.3 4.3.1 300m 150m 4.3.2 4.3.3 4.3.4 4.4 4.4.1 4.4.2 4.4.3 6 7 8 9 21

4.5 4.5.1 1 2 4.5.2 1 2 30 45m 60m 3 60m 4 5 6 7 15t 4.5.3 H 4.5.4 30 O 60 O 45 O 4.5.5 5t 4.5.6 22

5 5.1 5.1.1 GB 50017 5.1.2 5.1.3 5.2 5.2.1 1 5 3 Hh µ = (2 + ξ t ) 5.2.1-1 12EI c µ t Hh 12EI c 3 + 2ξ 3 t = 5.2.1-2 ξ = I L / hi c 6 + 2ξ b t 5.2.1-3 h L 1:10 L I c 2s 5.2.1 I 5.2.2 b H 5.2.3 23

ξ t 5.2.2 b0 5.2.1 I = ( I + I / 2 5.2.21 I c0 I c 1 I c b ) c0 c1 = [ I b0 + βi b1 + (1 β ) I b2 ] / 2 5.2.2-2 I I I 5.2.1 b1 b2 5.2. 1 5.2.3 5.2.31 H H=0.67W H=0.45W 5.2.3-1 5.2.3-2 W = ω + )h 5.2.3-3 ( 1 ω 4 5.2.3-2 H H=1.15η P 5.2.3-4 c H= η Pc 5.2.3-5 W 24

ω kn m 1 ω 2 A 5.2.3-2 P e 5.2.3-1 5.2.3-2 5.2.4 5.2.1-1 5.2.1-2 5.2.1-3 L 2s 5 5.2.4 5.2.4 5.2.5 I/2 H µ = 5.2.5-1 K i K i 12EI ei = (5.2.5-2) 3 h (2 + ξ ) i ti 25

I l ei i ξ ti = (5.2.5-3) hi I bi I ei = I l + I 4 r + I l I l I r + I r 5.2.5-4 i K i h li I ei I 5.2.5 l I r I bi ξ ti 5.2.5 26

6 6.1 6.1.1 1 b t 15 235 / f y h t 250 235 / f f y y 2 h = ρh 6.1.1-1a e h c e h = ρh 6.1.1-1b c 3 3 λ p 0.8 =1 6.1.1-2a 0.8 λ 1.2 =1-0.9( λ -0.8) 6.1.1-2b p p λ 1.2 =0.64-0.24( λ -1.2) 6.1.1-2c p p λ p 4 4 λ p = 28.1 h K σ / t 235 / f y 6.1.1-3 16 K σ = (6.1.4-4) 2 2 (1 + β ) + 0.112(1 β ) + (1 + β ) 27

6.1.1 1-1 Kσ σ l f λ p γ Rσ l 6.1.1-3 f y γ Q235 Q345 =1.1 γ 5 6.1.1 h e 0 h h e1 e2 R 2 h /(5- ) 6.1.1-6a e - 6.1.1-6b he h e 1 0 h h e1 e2 =0.4 h 6.1.1-7a e =0.6 h 6.1.1-7b e 6 60mm m V = h t f 6.1.1-8 d v λ 0.8 f = f 6.1.1-9a V V 0.8 λ 1.4 f =[1-0.64 λ -0.8 ] f (6.1.1-9b) V λ 1.4 f =(1-0.275 λ ) f (6.1.1-9c) V f V V h λ 7 f V a h 2 h 7 V R 28

= λ 37 K h τ / t 235 / f y 6.1.1-10 a h l K =4+5.34(a/ h ) a h K =5.34+4(a/ h ) τ τ 2 2 (6.1.1-11a) (6.1.1-11a) K K =5.34 τ a 6.1.1 6.1.2 1 V M V 0.5V d M M 0.5V V V d d e τ 6.1.2-1a V 2 M M f + ( M e M f )[1 ( 1) ] 6.1.2-1b 0.5V M f M d M e = A ( h + t f 6.1.2-2 f f ) M W f e W e 29 e

A f Vd 6.1.1-8 2 V M N V 0.5V d N e 0.5V V V d N M M e (6.1.2-3a) M = M NW / A d e e e (6.1.2-3b) N N N V 2 M M f + ( M e M f )[1 ( 1) ] (6.1.2-3c) 0.5V A e M N f N 3 d N S = V 0.9h t τ cr 6.1.2-5 0.8 λ 1.25 τ = [ 1 0.8( λ 0.8)] f (6.1.2-6a) cr 2 λ 1.25 τ cr = fv / λ 6.1.2-6b N S τ cr λ V 6.1.1 7 15 235 / f y hw 6.1.3 1 30

N β M + f (6.1.3-1) ϕ ] W O mx 1 xy Ae0 [1 ( N O / N Exo) ϕ xy el 2 N = π EA Exo eo 2 / 1.1λ (6.1.3-2) N O M l e0 A Wel ϕ β xy mx N Exo 2 GB 50017 3 2 M W l el 2 h = µ h h µ µ γ γ 6.1.3 µ γ I C 0 I c1 K2/K1 0.1 0.2 0.3 0.5 0.75 1.0 2.0 10.0 0.01 0.428 0.368 0.349 0.331 0.320 0.318 0.315 0.310 0.02 0.600 0.502 0.470 0.440 0.428 0.420 0.411 0.404 0.03 0.729 0.599 0.558 0.520 0.501 0.492 0.483 0.473 0.05 0.931 0.756 0.694 0.644 0.618 0.606 0.589 0.580 0.07 1.075 0.873 0.801 0.742 0.711 0.697 0.672 0.650 0.10 1.252 1.027 0.935 0.857 0.817 0.801 0.790 0.739 0.15 1.518 1.235 1.109 1.021 0.965 0.938 0.895 0.872 0.20 1.745 1.395 1.254 1.140 1.080 1.045 1.000 0.969 0 γ 31

1 l 6.1.3 µ γ K 1 K 2 I c0 K 1 = I cl / h 6.1.3-3 K 2 = I b 0 /(2Ψs) 6.1.3-4 I cl I b0 S D.0.2 a e =1 2 6.1.3-1 h =ηµ h 6.1.3-5 o γ ( Pli / hli ) η = 1 + (6.1.3-6) ( P / h ) li li 6.1.3 6.1.3-4 J µ γ 6.1.3-1 P li Pfi hli h fi µ γ 1.0 1:5 µ γ 32

6.1.3-1 3 4.1.2e 6.1.3 6.1.3-6 µ γ P P l f 2 K H u 1 6.1.3-2a 3 µ = 4.14 EI c0 /( Kh ) 6.1.3-7a γ 3 µ = 5.85 EI c0 /( Kh ) 6.1.3-7b h γ 6.1.3-7a 6.1.3-7b 6.1.3-1 1 5 µ γ η = 1 + 1.2 ( Pli / hli ) µ γ =1.0 ( P / h ) fi fi 2 6.1.3-2b 1.2 P E0i Pi µ γ = 0.85 6.1.3-8a K P h i i 1.2 P E0i Pi µ γ = 1.20 6.1.3-8b K P h e0i 2 0i 2 hi i i π EI P = (6.1.3-9) hi Pi i Pe 0 i 6.1.3-8a 6.1.3-8b 33

6.1.3-2 3 P-u µ γ 2 µ γ = 1 0.375γ + 0.08γ (1 0.0775γ ) γ = ( d1 / d 0 ) 1 0.268h 6.0 0 d o 6.1.3-10 6.1.3-11 d 6.1.3-3 d 1 6.1.3-3 3 1.0 β mx 6.1.4 1 N y o ϕ A eo β M t l + f 6.1.4-1 ϕ W bγ el β = t N 2 1 / N Ex0 + 0.75( N / N Ex0 ) 6.1.4-2 34

β =1.0 6.1.4-3 t ϕ y ϕ b γ GB 50017 2 N o M l β t N Exo 6.1.4-l 2 4320 Ao h0 µ λ 4 yot S o 235 ϕ ( ) ( ) 2 b γ = + ( 6.1.4-4 2 λ W µ 4.4h f ) yo yo x0 λ = µ l / i S S W yo o o f y ϕ bγ 6.1.4-5 µ = 1 + 0.023γ lh / A 6.1.4-6 µ = 1 + 0.00385γ l / 6.1.4-7 W i yo A h W t o o xo A f o i yo 1/3 y 35

l 6.1.4-4 GB 50017 B-1 η 6.1.4-4 ϕ 0.6 GB 50017 b ϕ br 6.1.5 6.1.6 1 2 3 4 N Af f y N = 6.1.6-1 60 cosθ 235 A f f y 6.1.6-1 5 GB 50017 t 2 f 235 F 15 α mt f 6.1.6-2 t f W y b 36

α m = 1.5 M /( We f ) 6.1.6-3 F t f t W 16 α m α m 1.0 M W e 6 235 / f y 6.2 6.2.1 6.1 6.2.2 GB 50017 6.3 6.3.1 9m 6.3.2 Z 6.3.3 6.3.4 6.3.5 4m 6m 6.3. 5 6.3.6 10mm 37

6.3.5 1 3 6.3.7 1 M x M x y + f 16.3.7-1 W enx M W eny M y y W W J y enx eny 6.3.7 GB 50018 5.6 2 M x + ϕ W bx ey M W y ey f 6.3.7-2 W W X y ex ey ϕ bx GB 50018 GB 50017 3 E 38

6.3.7 4 5 E GB 50018 5.5.5-1 -2 GB 50017 6.4 6.4.1 6.4.2 6.4.3 4 6m 6m 6.4.4 1 M X y + f 6.4.4-1 W enx M W eny 39

3V y max 2h t o f V 6.4.4-2 3V X max f V 4b t o 6.4.4-3 M M X Y x y Vx V y W W y enx eny b h 0 0 t 2 E 3 6.1.6-1 6.5 6.5.1 6.5.2 6.5.3 40

6.5.4 GB 50017 GB 50018 6.6 6.6.1 GRC 6.6.2 0.4mm GB 50018 6.6.3 300mm 300mm 6.6.4 41

7 7.1 7.1.1 1 4mm GB 50017 4mm 1.0 2 T 8mm F 3 GB 50205 7.1.2 1 7.1.2-1 7.1.2-2 hf 2 4mm 1 7.1.2-1a β f N τ = 0.8 f 7.1.2-1 tl N t l 2 f 2 7.1.2-6b 42

N τ = 0.7 f (7.1.2-2) tl 3 J 4mm 1) N τ = h 0.75 f f 7.1.2-3 f l 2 N τ = h 0.7 f f 7.1.2-4 7.1.2-1 7.1.2-2 h f f f f l 7.1.3 8t 40mm 15t 30t t 43

7.2 7.2.1 7.2.1a 7.2.1b 7.2.1c 7.2.1d 7.2.1 7.2.2 7.2.1 7.2.3 0.3 M16 M24 M12 7.2.4 7.2.1d 44

( 7.2.1a c) 7.2.5 35mm 2 7.2.6 7.2. 6 75mm 3 7.2.7 7.2.6 400mm 7.2.8 1 2 3 t 7.2.9 t 6ei N bf 3e N t (0.5a + e t ) f (7.2.9-1) (7.2.9-2) t [ e 6e e b + 2e ( e f i f N t + e )] f (7.2.9-3a) 45

t [ e 12e e b + 4e ( e i f f N t + e )] f (7.2.9-3b) 4 t [ e 6e f e N ( b + 2b ) + 4e s t 2 f ] f (7.2.9-4) N t e e f b b s a f 7.2.10 f V M = d d t b c c 7.2.1O-1 7.2.10-2 d d c t d b M f V 7.2.1O-1 7.2.6 7.2.11 GB/T985 46

N t 2 0.4P 0.4P e t f 7.2.11-1 N t 2 0.4P N t 2 f 7.2.11-2 e t N t 2 P e t f 7.2.11-1 7.2.11-2 7.2.12 7.2.12 7.2.14 Z 7.2.12 7.2.13 2a 7.2.13 7.2.13 7.2.14 47

7.2.14 7.2.13 7.2.14 3.3.2 7 45 o 7.2.15 7.2.15 7.2.15 25mm 5mm 7.2.15a 7.2.15b 7.2.16 GB/T 15856.1 4 GB/T3098.11 7.2.17 7.2.17a b 7.2.17c d 200mm 7.2.18 Q235 Q345 GB 50007 48

7.2.17 24mm 7.2.19 ( 1.0 7.2.20 0.4 49

8 8.1 8.1.1 JG 144-2002 8.1.2 8.1.3 8.1.4 8.2 8.2.1 8.2.2 8.2.3 8.2.4 1 2 8.2.5 50

1 2 3 4 5 6 7 8 9 10 8.2.5 50mm 100mm 8.2.5 51

8.2.6 1 2 3 150 250mm 60 100mm 4 300mm 5 6 7 8.2.7 8.2.7 l 8.2.8 8.2.8 52

53

8.2.9 8.2.9 8.2.10 8.2.10 54

GB50205 8.2.11 8.2.11 55

9 9.1 9.1.1 9.1.2 9.1.3 1 2 3 9.1.4 1 2 3 9.2 9.2.1 9.2.2 1 2 6h 9.2.3 56

9.2.4 1 5 38 2 85 3 4h 9.2.5 9.2.6 57

A A.0.1 ω = µ 2 kn m ω k ω o Z k S µ Z ω o A.0.1 GB 50009 1.05 µ GB 50009 10m 10m µ S A.0.2 A.0.2 10 o 18m 1 1 A.0.2-1 A.0.2-1a A.0.2-1b 2 A. 0.2-2 A.0.2-2 3 A.0.2-3 A.0.2-2 4 A.0.2-4 A.0.2-2 5 A.0.2-5 A.0.2-3 GB 50009 58

1 2 1 5 1.3 4 6-1.3 3 4 A.0.2-1b 59

A.0.2-1 B H Z 10% 0.4H 4% 1m A.0.2-2, A.0.2-3 Z( ) 2Z 60

1 A A.0.3 2 3 A.0.2-2 A.0.2-3 m2 A1 1-1.3-1.7 A1 1-1.7-2.1 A1 1-2.9-3.3 A1 1 A1 1-1.2 +1.2-1.4 +1.2 A1-1.6 +1.3-1.8 +1.3 A.0.2-4 m2 A 10-1.2-1.6 A 10-1.3-1.7 A 10-1.3-1.7 A 20 A 20-1.0 +1.0-1.1 +1.0-1.4 +1.1-1.5 +1.1 61

62

A.0.2-5 m2 A1 1-1.9 A1 1-1.9 A1 1-2.7 A 1 1 A 10 10 A 50 A 50 A 1 1 A 10 A 10-1.9 +0.1logA-1.9 +0.858logA-2.658-1.2-2.7 +1.8logA-2.658 A.0.3-0.9 1 A A=lc l (A.0.3) c a+b /2 l/3 a b 2 c=l/3 3 A 1 63

B Z 64

65

66

67

C 68

69

70

D D.0.1 5.2.1 L b 2 s s D 0.1-2 1 2 d 1 = d 2 = 1 0 0-1 D.0.1-1 d 2-1 D.0.1-2 d d 1 d 2 d 0 D.0.1-1 71

72

73

74

75

76

E E.0.1 1 M M x N y ( + ) + χ W A W ex e M = η q = y M y0 x kq y R = Kl 4 l /π 4 EI fly fly f E.0.1-2 E.0.1-2 E.0.1-3 E.0.1-4 M x 6.3.7 M ex 5.6 N A e M y M χ fly M y 1/6 y E.0.2 M y0 E.0.1-2 E.0.1-2 qx q y R 77

E.0.1-1 K IXl E.0.1-2 M M 2 - q xl y / 8 2 q xl y / 24 y0 y0 1+ 0.0314R 1+ 0.396R 1 0.0125R 1+ 0.198R l y K E.0.1-1 I fly 1 6 y 78

K E.0.3 E.0.2 X 2 λ n 2 χ = 1/[ φ + φ ] 1.0 χ (E.0.2-1) 2 φ = 0.5[1 + α( λ n 0.2) + λ n ] λ λ n = fly λ fly fly / λ 1 = l / i fly (E.0.2-2) E.0.2-3 E.0.2-4 1.6 0.125 l fly = 0.7l0 (1 + 13.1R0 ) 0 R 0 200 E.0.2-5 4 Kl0 = (E.0.2-6) π EI R0 4 fly fly fly i = I / A (E.0.2-7) y fl λ = E / f (E.0.2-8) 1 π 0.21 l 0 λ n λ fly A fl l fly i fly y-y 1 6 y E.0.3 K 1 K = 2 4(1 ν ) h ( h Et 3 d + e) h + C 2 t E.0.3-1 e 6 79

f( E.0.1 h h = h d t 0.3 C E.0.4 t E.0.4 Ct C t = C t = C 1 1 C + 1 t1 C t 2 2 1 100 (b /100) h d E.0.4-1 (E.0.4-2) C =130n (E.0.4-3) t1 C = kei l / s t 2 (E.0.4-4) C t1 Nm m rad C Nm m rad t 2 b mm C 100 b 100mm 2600 1700 n 1 k 2 4 I 1 S m E.0.4-3 1 120mm 2 0.66mm 3 a b-a 25mm( E.0.4) 80

81

F F.0.1 F.0.1 1 2 3 F.0.1 4 5 t W F.0.1 mm k H 1.2 2.0 J 3 3 2.1 1.0 4 4 2.8 1.2 5 5 3.5 1.4 6 5.5 3.9 1.6 7 6 4.2 1.8 8 6.5 4.6 2.0 82

1 2 3 83