3 . 
. , :
(3.12)
8, 1,25 7,2 .
 |
 |
.6
(3.13)
f , f=0,15;
(3.14)
k = 1,25 -
=1,04
(3.15)
1,3 ,
z - ;
3 
= 4050
= 4050
.
.
D=160,
(3.16)
m ;
z= 10-30- ;
(3.17)
q- ;
-
;
- ;
F- , , : 
. (1) .
(3.18)
45 = 400 / 
=12.
m 6563-60 m=14.
(3.19)
D=160 .
=2 14= 28 .
h= 0,75 m =0,75 14=10 .
=3.14 160/11= 45,6 .
= m = 14 .
b1= b+2 = 28 + 2 = 30 .
.7
 |
(4.1)
/
(4.2)
/.
(4.3)
(4.4)
- .
, 0,91 , ..:
. MTF 012-6 c 
, 
/, 
, 
, 
,
|
|
|
, (): 
.
(4.5)
(4.6)
4.1.8
(4.7)
