“RAUDBETOONKONSTRUKTSIOONID. PROJEKT”
A = = = 74074mm2
( fcd + fyd ) 0.9 ( 0.85 13.3 + 0.02 340 )
b= A = 74074 = 272mm
Valin posti mõõduks b = 300mm
NSd - fcd A
A s,tot = =
fyd
1207 10 3 - 0.9 0.85 13.3 300 2
= = 952mm2
0.9 340
0.15 NSd 0.15 1207 10 3
A s,min = = = 533mm2
fyd 340
0.003 A = 0.003 300 2 = 270mm2
A s = 952mm2
Valin 4 18 A S = 1018mm2
- Kandevõime
lo 1800
= =6
b 300
NSd1
=1
NSd
Siis c = 0.92 ja sc = 0.92
fyd A s 340 1018
s = = = 0.34
fcd A 0.85 13.3 300 2
= c + 2 ( sc - c ) s = 0.92 + 2 ( 0.92 - 0.92) 0.34 = 0.92
NRd = ( fcd A + fyd A s ) =
( )
= 0
annaabi.ee 
