:
- I I ;
- V V ;
- . IV IV, .. 3.
:
,
V , 3/;
W , /.
:
,
GH Z , /;
18 ;
t , ;
, ;
k 100 . :
10572,13
k - , /100 ;
G - , /. G = 507463 / (. . 6.4).
:
W = 0,85 × 10-4 × × ,
, . :
= ×1 2×(l - 35),
, . = 1,15;
1 , .
600 .
2 - , 4 ;
l - , . :
,
n - ;
Wc , 3.
:
Wc = ,
g , /;
- , /3. :
= - × (t - 20).
, /3. :
.
:
d = = ,
:
Dh - , . 50 .
l - ( ), .
:
l = (0,75-0,8) × d.
d - , .
I - I
GI-I = 17,4 + 69,0 = 86,4.
Z = 1,652.
g I-I = 69,0.
= 56,72 3/.
= - ×(157 20) = 0,755 0,000831×(157 20)=0,64 /3 =640 /3.
= 4,56 /3.
Wc = = = 1139,8 3.
(n = 6).
=
= = 27,8.
=1,15 × 750 4 × (27,8 35) = 891,3.
W = 0,85 × 10-4× 891,3 × = 0,894 /.
d = = = 8,99, d = 9,1 .
|
|
:
W =
S , 2.
S = 2.
W = /.
W ≤ W, .
= = 0,027 = 27 .
IV - IV.
GIV-IV = 96,8.
Z = 0,888.
g IV-IV = 59,5 .
N , , .
V = 38,19 ∙ = 45,963/.
= 0,843 - 0,000712× (295 - 20) = 0,65 /3 = 650 /3.
= 6,24 /3.
Wc = = = 967,8 3.
n=2
=
= = 72,9
= 1,15 × 750 - 4 × (72,9 - 35) = 710,9
W = 0,85 × 10-4× 710,9 × = 0,614 /
d = = 9,76 , d = 9,8.
S = 2.
W = /.
W < W,
= = 0,047 = 47 .
V - V.
GV-V = 80,8.
Z = 0,888.
g V-V = 69,6.
N , , .
V = 51,21 ∙ = 42,023/.
= 0,898 - 0,000647× (345 - 20) = 0,69 /3 = 690 /3.
= 5,71 /3.
Wc = = = 1066,4 3.
n 4
=
= = 43,6
= 1,15 × 750 - 4 × (43,6 - 35) = 828,1
W = 0,85 × 10-4× 828,1 × = 0,771 /
d = =8,33, d = 8,4.
S = 2.
W = /.
W < W,
= = 0,035 = 35 .
, 180-230 ( 33) 9,6; 180-230 , ( 6) 10,0; 9,0.
.
, . (
H1 = 0,5×d1,
d1 - .
"" . "" (Dh=0,6 ):
H2 = (N5 + N4 + N3 + N2 - 1)×Dh
H3 = (2-3)×Dh
H4 = (N1 1)×Dh
H5 = 1,5-2 .
H9 ; 10 .
V = ;
V = ;
H9 = + h';
h' = ;
:
H = SHi
1 = 0,5 × 9,1 = 4,55;
H2 = (n1 - 1)×Dh1,
H2 - 180-240 32 44 . n1 =13 .
Dh1 .
6 0,45-0,6 6 - 0,60-0,90 .:
Dh1= 0,6
2 = (13 - 1) × 0,6 = 7,2;
H3 - 5 32 , ;
n2 = 28 , Dh2= 0,7 .
3 = (28 - 1) × 0,7 = 18,9;
|
|
H4 = (2-3)×Dh2,
H4 - , .
4 = 3×0,7 = 2,1;
H5 = (n3 - 1)×Dh;
H5 - , ;
n3 = 4
5 = (4 - 1) × 0,6 = 1,8;
H6 = 1,5-2 .
H6 = 1,5.
H7 =
H7 ; 10 .
d2 = 8,4
,
V= ,
ρ , /³.
r = 0,898 0,000647(330 20) = 0,6974/3
V = = = 112,183.
V = = =155 3.
, , .
,
H7 = =4,2
8 - (), .
8 =4 .
:
H = SHi;
=4,55+7,2+18,9+2,1+1,8+1,5+4,2 + 4 = 43,25 .
-2 |
. 6.14. |