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75(=18/3). 25. = 3,6. 5. . - 510. , 20. d = 120. 12 qnep= 13,05/2. 12 q. = 10,754 /2. b0K x h0K= 1,5x1,55. = 2,14., L = 5.5 .
. (,1).
1 12 . | ||||
/2 | . - γ f | /2 | ||
1. | g: | |||
- -20, | ||||
=700/3. | 0,02x7=0,14 | 1,1 | 0,154 | |
./. -20, | ||||
=1800/3. | 0,02 18 = 0,36 | 1,3 | 0,468 | |
. -40 | ||||
ρ=16/3. | 0,04 16 = 0,64 | 1,3 | 0,832 | |
./. -220 | ||||
ρ=16/3, d =0,12 | 0,12*16=1,92 | 1,1 | 2,112 | |
: | 3,06 | 3,566 | ||
2. | v: | 8,23 | 1,2 | 9,874 |
.: vSh | 5,85 | 1,2 | 7,024 | |
VL | 2,38 | 1,2 | 2,85 | |
q: | 11,3 | - | 13,05 |
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1) ∑N.
) ( 2 ).
NCo6,ec= (. δ. h. b n) x p x yf = (14,9x0,55x2,14 - l,5x0,55xl,55x4)x p x yf = 245,96K;
ρ = 18/3, yf= 1,1
) .
Nlnep= 13,05 x B x L/2 = 13.05 x 2,14 x 2,75 = 76,82.
) .
N2nep= 76,82 x 2 = 153,64.
) .
N= 10,754 x B x L/2 = 10,754 2,14 x 2,75 = 63,29.
) 230.
G = 0,23x0,55x2,14 x 18 x 1,1 = 14,74.
) ∑N = Nco6.ec+ N2ep+ Nn+ G n= 245,96 + 153,64 + 63,29 +
+ 14,74x 4 = 477,63
2) , I-I.
= N x x(l- h/) = 76,820,215(1- 0,23/3,6) = 15,46;
=h/2 - d/3 = 51/2 - 12/3 = 21,5.
3)
0 = Mx/∑N = 15,46/477,63 = 0,0324 = 3,25.
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[, N Q], , - .
:
∑N ≤ mg x φ1 x R x A x ώ x γ x (l- 2eo/h); 0 = Mx/∑N.,
: Rk - , (. 2-9 );
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- . = b x h ( );
mg - , ;
mg= l η x Ng /N (1 + 1,2 eog /h);
η - , . 20 λh = H/h;
eog - , ; eog = Mg/Nh;
φ l - (. 18);
ώ - , 19;
γ - , ;
γ= 1; γ = 0,7;
R = 1,1 ; = 0,64 x 0,51 = 0,326c2;
λh lo /hmin= 360/51 = 7,15; φ = 0,95;
.1.
1
ώ = 1+e o /h= 1+3,25/51 = l,064<l,45; mg= 1 ( >30 .); jK= 1; ∑N=477,63>1 0,95 1,1 0,326 [1-(2 0,0325/0,51)]x 1,064 1=316;
, . .
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