JTG D62-2004(JTG D62

JTG D625.2.7T 1-1 kN1-2

kN 1-3kN 1-4 ,

TImmmm

, p>2.5p=2.5150mmMpa MPa

mm2

mmmm2

JTG D625.2.71 1-2

? .1-1 1-5

(1-6) 0.75 mm2 MPa

JTG D627.1.57.1.6

1 0.5fck2 0.65 fpk 0.8fpk3

, ,

JTJ023-85JTJ023-85

JTJ023-85JTJ02312%10.7%

JTG D62()JTJ023-85I()JTG D62)

()c()()cJTG D60-2004 () (2-1)

Sk SGik i SQ1k () SQjk ( )j

c ( ) ( )( )c=0.8( ) c=0.70 c=0.60 c=0.50

c=0.8 c=0.7 c=0.6

c1.0()()

MudMcr JTG D629.1.12 9.1.12

9.1.129.1.12 6.5.26BA9.1.12

1 JTG D629.1.12

GB50010-20029.5.3 JTG D629.1.12A

2 JTG D629.1.12,6.5.2-6 6.5.2-6 6.5.2-7

6.5.2-6 20~30%9.1.12 9.1.1.2

3

4

JTG D62 =1110%10%

B JTG D627.1.4B * 4-1

--- JTG D626.1.5- 2;JTG D62 6.1.5-5 --- Npo, ,JTG D627.1.4- 3--7.1.4-5

,conMG1k ( )Mk(4-1)

BMG1kB

4-2

MG1k Jn

4-2