Q = 200 . 21-2*0.75=19,5 .
(. 15) =5600 , =4400 .
Gn=60 , F,=155 , Fn,min=64 .
γf = 1.1
F max = F,*γf*γn = 155*1,1*0,95 = 161,98
F min = F,min*γf*γn = 64*1,1*0,95 = 66,88
:
Hmax = * 0,5* γf*γn = * 0,5*1,1*0,95 = 6,79
γi = 0,85
Dmax = F max* γi* = 161,98*0,85*(1+0,8+0,267+0,067) = 293,82
Dmin = F min* γi* = 66,88*0,85*(1+0,8+0,267+0,067) = 121,31
: = 1+0,8+0,267+0,067= 2,134 -
( . 4).
4 γi =0,7 : 2 Dmax =2* 161.98*0,7*2,134 = 483.93 :
:
Dmin = 66,88*0,7*2,134 = 99,91
2- :
H = Hmax * γi * = 6,79*0,85*2,134 = 12,32
11,25 . -11,25=13,95-11,25=2,70
- β1= 2,70/13,95 = 0,1935
- β2= 2,70/13,95 = 0,1935