2
, , .
()
, hB- 1,5();
Ki- .
, ( ℓ = 360 , ).
250 - 300, . :
()
, ℓ- ();
α- ().
, .
()
, q- (/);
(/)
, - 1 (/).
( /)
( /)
1.3
F /2, 3, [6]:
3
a = = 9019/3,74=2411,5 | f = 1802/2*2411,5= = 32400/4823= = 6,7 | x = 180*(1 6,7/ /3*2411,5) = 180 *(1 - 6,7/7234,5) = 180 * *(1 0,0001) = 180* *0,99907 = 179,83 | AB= 2 * 179,83= = 359,6 |
a 1 = 50020 / 2 * *3,74 = 50020 / /7,48 = 6687,16 | f1 = 1802/ /2*6687,16= = 32400/13374,3= = 2,4 | x1 = 180*(1- 2,4/3* *6687,16) = 180*(1- -2,4/20061,48) = =180*(1-0,0001196)= =180*0,9998 = 180 | AB= 2*180 =360 |
l 1 ().
.
Δb=''=2x12x
, Δb- .
Δb=360 359,6 = 0,4
F 0,5.
, Δy- ;
d- ;
ε- .
.
Δ=Δb+Δy
Δ= 0,4+1,05 = 1,45
Δ ≥ h .
Δ ≤ h Δ.
, Δ Δ ≤ h
|
|
: F = 88,45
ℓ = 360
V = 4,2 /
Δ. Δy = 1,2 :
; ; ;
. 4.
a = = 6852/3,74=1832,1 | f = 1802/2*1832,1= = 32400/3664,2= = 8,8 | x = 180*(1 8,8/ /3*1832,1) = 180 *(1 - 8,8/5496,3) = 180 * *(1 0,001) = 180* *0,9984 = 179,7 | AB= 2 * 179,7= = 359,4 |
a 1 = 50020 / 2 * *3,74 = 50020 / /7,48 = 6687,16 | f1 = 1802/ /2*6687,16= = 32400/13374,3= = 2,4 | x1 = 180*(1- 2,4/3* *6687,16) = 180*(1- -2,4/20061,48) = =180*(1-0,0001196)= =180*0,9998 = 180 | AB= 2*180 =360 |
l 1 ().
.
Δb=''=2x12x
, Δb- .
Δb=360 359,4 = 0,6
Δ= 0,6+1,2= 1,8 ()
, Δ Δ ≥ h
: 1,5 3,7 /., F =67,2 . ℓ = 360
( < ; 405,5 < 490,5 ), 6 30 (0+15+15)+7.. 3083-80, ( Nc)
:
1370(140)
= 405,5
d = 34,5
m = 3,56
.
()
()
(/)
(/)
F .
( /)
( )
,
. 5
a = = 8270/3,1 =2667,7 | f = 1802/2*2667,7 = = 32400/5335,4 = 6,1 | x = 180*(1 6,1/ /3*2667,7) = 180 *(1 6,1/8003,1) = 180 * (1 0,00076) = 180* *0,99923 = 179,8 | AB = 2 * 179,8 = = 359,6 | |
a 1 = 41350/ /2*3,1= =41350/6,2 = =6669,4 | f1 = 1802/ /2*6669,4= = 32400/13338,8= = 2,43 | x1 = 180*(1- 2,43/ /3*6669,4) = 180*(1-2,43/ /20008,2) = =180*(1-0,00012)= =180*0,99987 = =180 | AB= 2*180 =360 | |
Δb=360-359,6=0,4
Δ=0,4+1=1,4
, Δ Δ ≤ h
: F = 81,1
ℓ = 360
V = 4 /
Δ. Δy = 1,2 :
|
|
; ; ;
,
. 6
a = = 5705/3,1 =1840,3 | f = 1802/2*1840,3 = = 32400/3680,6 = 8,8 | x = 180*(1 8,8/ /3*1840,3) = 180 *(1 8,8/5520,9) = 180 * (1 0,00159) = 180* *0,998406 = 179,7 | AB = 2 * 179,7 = = 359,4 | |
a 1 = 41350/ /2*3,1= =41350/6,2 = =6669,4 | f1 = 1802/ /2*6669,4= = 32400/13338,8= = 2,43 | x1 = 180*(1- 2,43/ /3*6669,4) = 180*(1-2,43/ /20008,2) = =180*(1-0,00012)= =180*0,99987 = =180 | AB= 2*180 =360 | |
l 1 ().
.
Δb=''=2x12x
, Δb- .
Δb=360 359,4 = 0,6
Δ= 0,6+1,2= 1,8 ()
, Δ Δ ≥ h
: 1,5 3,3 /., F =55,9 . ℓ = 360
1.4
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ED D - , .. .
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DE
.
3
DM DM DE:
:
:
= F = .
DE < 0, , ( 4). , DE - .
4
.
7.
1- ; 2- ; 3- ;
4- ; 5-
8.
1- ; 2- ; 3- ; 4-;
5-; 6-
9.
1- ; 2- ; 3- ; 4- ;
5-; 6- ();
7-