- :
- :
- :
- :
- :
;
- :
- , :
:
| . . | ||
| 0,08 /2 | |
| 0,9 /2 | 0,6 /2 |
| 0,85 /2 | |
| 0,65 /2 | 0,3 /2 |
. :
:
:
. :
:
:
=1,5 .
. :
Pn=1,0, gf=1,2, 
.
:
b=100 :
:
. :
.
III.
.
, , , . .
.
:
:
:
P1=6= 
= 
=32,72
2=5= 
+ 
)=14,54 
+ 
)=68,34
3=4= 
+ 
)=14,54 
+ 
)=72,7
-
:
P1= 
= 5.65*2.8*2=31.64
2=5.65*5.85*0.81*2=53.55
3=5.65*6.35*.4*2=28.7
4=5.65*6.35*0.22*2=15.8
5=5.85*5.65*0.4*2=26.4
6=2.8*5.65*0.5*2=15.68
:
|
|
|
=q+s=5.318+5.65= 10.968
:
1) :
Ra=Rb= 
= 
=84.75
2) :
Ra= 
=(53.55*5.6+28.7*11.7+15.8*18.3+26.4*24.4+15.68*30)/30=68
Rb= 
=(31.64*30+53.55*24.4+28.7*18.3+15.8*11.7+26.4*5.6)/30=103.8
2.
.2
| - | |||||
| 1 | 2 | ||||
| 1- | |||||
| 2- | |||||
| 4- | |||||
| 6- | |||||
| 7- | |||||
| 1- | |||||
| 3- | |||||
| 5- | |||||
| 7- | |||||
| 1-2 | |||||
| 2-3 | |||||
| 3-4 | |||||
| 4-5 | |||||
| 5-6 | |||||
| 6-7 |
3.2
:
=-n,
= 
q=-q2 =10.968-0,149 
n=N 
f0
1-c:
= 
=42.41
n=N f0=-303,9 0,1809=-54.98
=42.41-(-54.98)=97.39
2-d:
= 
=50.32
n=N f0=-276.1 0,1809=-49.95
=50.32-(-49.95)=100.27
4-:
= 
=58,91
n=N f0=-273,2 0,1809=-49,42
=58.91-(-49.42)=108.33
=108.33
.
, . .
:
l =610
:
l =628
[λ]=150
[λ]=120
.
ry= 
= 
=4,07
ry=0,289 b , b = 
= 
=14,07
150 , 140 .
.
h= 
W= 
= 
=12036,67 3
h= 
=71,82
t=3,3 . 22 .
h=22*3,3=72,6 .
:
W= 
= 
=122984 3
F=b*h=14*72,6=1016,4 2
=5,18
.
N ;
- .
;
;
( 
)
.
.
:
- .
|
|
|
- .
LP=1.4 .
- ;
- , ( ) .
2
2 └63636: 2F = 2∙7,28=14,56c2
q
/
;
.
:
. . , .
2-3 ( , )
N=19,1
l =6,1
, .
15, 146 . bn = 14.0
. .
,
.
