_9_
_______________ .. ____ ___________ 2012 .
() ( )
: ..12..03.06.09
: -367
( )
: 151001.65
_______________ . . ____ ___________ 2012 .
() ( )
. 2012
| 1. | 3 . |
| 2. | 6 . |
| 3. | 9 . |
1
. 1.
:
- 5 = 5,1 ,
- n5 = 110 /,
- L = 7 .
P, :
| (1.1) |
P5 ;
h0 = - ().
 ,
| (1.2) |
h = 0,9 ,
h = 0,97 ,
h = 0,96 - ,
h = 0,97 ,
h = 0,99 .
.
411223, 1=7,5 n1=2900 /.
 .
| (1.3) |
.
:
- =2,
- =1,6477,
- =4,
- =2,
, /:
, -1
 .
| (1.4) |
,
,
, ×:
| (1.6) |
.
.
.
.
.
() :
 ,
| (1.7) |
L = 7 - , tc = 8 - , ; nc = 3 - ; = 0,85 - .
.
2
,
,
=q - , = 1 - , =1,5 - , ( ), q=1 - , , =1 - , ( ) =1,25 - , v=1 - , z1=29-2u=29-2×2=25 - .
=1×1,5×1×1,25×1 =1,875.
-38,1-12700, =38,1 . F=127000 . d1=11,1 , b3=25,4 . 1 q=5,5 .
|
|
|
z2=z1u=25×2=51 ( -). 
.
.
3030×38,1=1143 .
=30.
.
lp = 100.
==30,721×38,1=1170,5 .
=0,995=0,995×1170,5 =1164,6 .
l=lpp=100×38,1=3810 .
:
,
.
.
2.4 K = 0,575.
:
,
.
:
, ,
,
n4=220< [ n ].
[ n ] =15000/= 15000/38,1 = 393,7 /.
.
/.
.
,
.
.
, :
F0=fqga10-3=4×5,5×9,81×758×10-3=163,59 - ,
Fv=qv2=5,5×3,49252=67 .
.
,
.
3
. 5.1.
1== 7,5, n1= 2900 /, 3; , = 1,65.
, , 38-40534-75.
d1min = 90 .
d1= 100.
d2, :
,
e = 0,01 .
d2 =180 .
u:
.
D u u:
.
, :
,
h = 8 - .
l, :
.
l= 750 .
l:
:
.
v, /:
,
[ v ] = 25 / .
U, -1:
,
[ U ] = 30 -1 .
, [ P ], :
,
[ P0 ] = 2,07 , .
= 1,1 , ,
a = 0,95 ,
l, = 0,95 , ,
|
|
|
Cz= 0,95 , .
z: 
.
z=5.
