CECS 40:2002 Specification for structura design of buried prestressed concrete pipeine of water suppy and sewerage engineering 2003
Specification for structura design of buried prestressed concrete pipeine of water suppy and sewerage engineering CECS 40:2002 2 0 0 3 3 2003 2
GBJ 6984 94 GB 50068 GBJ 53 GBJ 69 84 [986]649 CECS 402002 3..3..33.2.3.3.5.2.25.2.45.2.55.3.7..7..3 CECS/TC7 00045 2002 2 25 3
...3... 6 2... 7 3... 9 3.... 9 3.2... 9 3.3... 9 3.4... 0 4... 4.... 4.2... 4.3... 4 5... 5 5.... 5 5.2... 6 5.3... 7 6... 8 6.... 8 6.2... 20 7... 24 7.... 24 7.2... 24 7.3... 24 7.4... 25 A... 26 B... 27 4
C... 28 D... 30 E... 3... 32 5
.0..0.2.0.3 GB 50332.0.4 6
2 2.0. ep, fw, p sv, w wd, M max N Q v q m q v pe 2.0.2 f mc, f mt, E m E c ε mt 2.0.3 A c0 7
A sc A cm A n A p a b D H s 2.0.4 C c C d C j α ct r µ d ω 8
3 3. 3.. C40 3..2 GB 5000 GB 5696 25 3..3 CECS 53 3..4 GB 509 3.2 3.2. 4mm GB/T5223 200mm 0.5 2.0 4mm5mm 8 6mm7mm 6 2 200mm 3 5 3.2.2 GB 5000 3.3 3.3..5mm GB/T92 3.3.2 GB 9
5007 3.4 3.4. f mt, 0.58 f mc, 3.4. MPa f mt, f mc, MPa 3.4.2 E m MPa E = ( ) 0. 3 m 8247 f mc, 3.4.2 3.4.3 ε mt ε mt = f mt, E m 3.4.3 0
4 4. 4.. 2 4..2 4..3 4..4 4.2 4.2. 4.2. 4.2. N/m 3 25 22 78.5 78.5 0 4.2.2 A 4.2.3 B sv, ep, p
4.2.4 75 pe 4.2.5 4.2.5 con 4.2.5 s s2 s3 s λ = s E s 4.2.5- λ mm.omm mm Es N/mm 2.80 5 N/mm 2 2 s2 s 2 = s2, i 4.2.5-2 0. 08 s2, i = con φ φ t ni 4.2.5-3 i N/mm 2 s 2,i con 2
φ t.0.2 φ ni i.0.0 0.7ρ.0.0.0.0ρ.0. ρ ρ 2 2 φap + φ2 Ap2 φ n φn = A p A p 2 A + A mm 2 /m 3 4.2.5-3 s3 p 4.2.5-3 N/mm 2 p2 p f cu 0. 0.2 0.3 0.4 0.5 0.6 20 30 40 50 60 90 28 38 48 58 68 05 p f cu p + p = p p2 c p p2 = = A A p A 0.75 f 4.2.5-4 ( ) A p2 cy cy con + na s2. p ( ) + n con ( A + A ) p s2.2 p2 4.2.5-5 4.2.5-6 N/mm 2 p p N/mm 2 3
p2 N/mm 2 s2. s2. 2 N/mm 2 A mm 2 p A p2 A cy A cy mm 2 mm 2 f c N/mm 2 4.2.6 GB 50007 4.3 4.3. C 0.5 4.3.2 0N/m 2 0.5 m 4.3.3 q v wd, wd, =. 4 w 4.3.3 w MPa 0.7 4.3.4 2.0 4
5 5. 5.. 5..2 2 5..3 5..3 5..3 G 2 3 4 5 2 3 sv G w ep p pe wd q, q v m q gw G sv, q gw, G Gw sv, ep, wd, p.2g.27g.27 w sv,.0 ep,.4 wd,.4q v.4q m. 5
2..2 5..4 5..5 5.2 5.2. 5.2.2 γ S 0 R 5.2.2 γ 0..0 S R GB 5000 5.2.3 S = γ m n GCGG + γ GiCGiGi + ψ c γ Qj i= 2 j= C Qj Q j 5.2.3..2.0 γ G γ Gi γ Qj C C C G Gi Qj i.27.0 j. 40 i j G G i 6
Q j j ψ c 0.9 5.2.4. 5.2.5.5 5.3 5.3. 5.3.2 5.3.3 K f S d = C m GG + CGiGi + ψ c i= 2 n j= C Qj Q j 5.3.3 S d 5.3.4 S d = C m n GG + CGiGi + CQjψ qj i= 2 j= Q j 5.3.4 ψ qj j 4.3 7
6 6. 6.. G + fw, sv, K f 6.. N/m sv, fw, N/m K f 5.2.4 6..2 p ep, + wp, f K s 6..2- p f a 6..2-2 p min 0 6..2-3 pmax.2 f 6..2-4 a N B p ep, N B f N wp, N K s 5.2.5 p N pmin N p max N 8
f a N GB 50007 2 GB 50007 6..3 N A p Q λ y f py wd, N 0 M + d max 0 ( ψ q ) = ψ γ γ 0.5 + D c [ ( γ + ψ γ q D ) + γ D + γ G γ G ] = γ + Mmax 0 vm G3 sv, c Q2 v hm G4 ep, wm G2 w gm G A p sv, c v 6..3-6..3-2 6..3-3 mm 2 /m N N/m M max Nmm/m d 0 mm f py N/mm 2 GB 5000 λ y γ 0 0.80.9 mm vm hm wm gm E 20º gm D mm γ Gi γ i j Qj qv N/m 2 m, m, 9
sv, ep, G w N/m G N/m wd, N/m N/m N/m 2 6..4 λ y Ap N f pv M max + A f sc d 0 6..4 mm 2 /m A sc f N/mm 2 GB 5007 6..5 20 pc A p A co pc pe pe = con s 6..5-6..5-2 mm 2 /m A p pe pc N/mm 2 N/mm 2 s N/mm 2 A co mm 2 6.2 6.2. 20
A p Acm ( α cp ss ft 6.2.- pe N ps M ss = + A γw cm pms cm 6.2.-2 pms N = ψ ps c wd, γ 0 0[ vm sv, + cqv D + hmep, D + wmgw gmg M = ψ + 6.2.-3 γ 6.2.-4 z() ] mm 2 /m A cm M pms Nmm 2 /m N ps N/m W mm 3 /m cm f t α cp γ.25.75 pe ss N/mm 2 N/mm 2 6.2.2 An A p ( ss λc f t ) 6.2.2- n p pe N ps M pms ss = + 6.2.2-2 A γωw mm 2 /m A n λ c.5 W p mm 3 /m 2
ω D 6.2.3 A p Acm ( ss α mε mt Ec 6.2.3- pe N ps ss N = A cm M + γw wd, r0. 5 max cm ( ψ q ) = ψ 0 + D c sv, [ ( + q D ) + D + G G ] Mpms = r0 vm sv, ψc v hm ep, wm w + gm c v 6.2.3-2 6.2.3-3 6.2.3-4 N/mm 2 ss N N/m M max Nmm/m E c N/mm 2 ε mt 3.4.3 α m.5 2 An A p ( ss α mε mt Ec ) 6.2.3-5 ss N = A n pe M + γωw max p 6.2.3-6 6.2.4 Acm A p ( s ε mt Ec ) 6.2.4- pe N s = + Acm M γw max cm 6.2.4-2 22
N wd, r0. 5 ( q ) = ψ 0 +ψ D qw sv, qv v 6.2.4-3 ψ qw max ( + q D ) + D + G G ] M = r ψ + 6.2.4-4 s 0[ vm sv, qv v hm ep, wm w gm N/mm 2 N p N/m M pm N mm/m ψ qv 2 An Ap ( s ε mt Ec ) 6.2.4-5 pe N s = + An M γωw max p 6.2.4-6 23
7 7. 7.. 4mm 2 2.75 38mm 6mm 25mm 7..2 4050cm 4mm 200 7..3 20 mm 7..4 7.2 7.2. 2a 2a 90º 20º 5º 7.2.2 2a 35º 7.2.3 2a 20º 7.2.4 500mm 0.9 500mm 0.8 7.2.5 2 500mm 0.9 7.3 7.3. 24
7.3.2 7.3.3 7.3.4 7.4 7.4. 7.4.2 50mm00 mm 2.3 2 0 mm 3 4 0 mm 25 7.4.3 7.4.3 7.4.3 mm mm 500 4 600900 5 000200 7 300500 8 7.4.4 25
A A.0. = C γ H sv, d s s D A.0. sv, N/M C d.2 H s m D m γ s 8N/m 3 A.0.2 = C γ H sv, c s s D A.0.2 C c.4 26
B B.0. Z ep, = γ s 3 B.0. ep, N/m 2 Z m B.0.2 ep, = s w γ s 3 [ γ Z + ( Z Z )] w B.0.2 0N/m 3 γ s Z w m B.0.3 p = γ ztg s 2 φ (45º + 2 ) B.0.3 φ 30º 27
C C.0. C.0. q s C.0. C.0.2 q v = µ Q d ( a +.4H )( b +.4H ) s v s C.0.2 q v N/m 2 µ d C.0.3 Q v 20 60N 20 70N a m b m H s m C.0.3 8 q v = ( 2a + 2d +.4H )( 4b + d + 2d +.4H ) a 8µ Q s d v v b s C.0.3 d a.2m db.2m 28
dv.7m C.0.3 µ d H s 0.25 0.30 0.40 0.50 0.60 0.70 µ d.30.25.20.5.05.00 C.0.4 C.0.2 C.0.3 C.0.5 /3 29
D D mm ω D ω mm ω 600.002 000.00 700.0209 200.074 800.0380 400.036 900.0527 600.092 000.065 800.087 200.0844 2000.0225 2200.028 2400.028 2600.0238 2800.0226 3000.0223 3600.0206 30
E E E vm hm wm 20º 90º 20º 35º gm +0.266 +0.50-0.54-0.25-0.25 +0.25 +0.2 +0.079-0.090 +0.2 +0.079-0.090 +0.78 +0.4 +0.45-0.25-0.25 +0.25 +0.23 +0.07-0.082 +0.23 +0.07-0.082 +0.55 +0.36-0.38-0.25-0.25 +0.25 +0.00 +0.066-0.072 +0.00 +0.066-0.072 +0.065-0.052 +0.053-0.059 +0.080-0.09 2 5 2 3
2 3 32