[3] , :
, - , , ;
, , ;
, , 1/8 ; , , 100;
, , , , ;
, , ; ≥ 250 .
.2.1 ( ) .2.5 ( ). - [4].
:
- ;
- ( ), 250 ( 40 ), (. .2.5).
, q 85,0
:
2,3
0,50
1,55
, :
L 13,84
B 2,76
2,79
68,5
, :
L 3,80
H 2,34
.2.5. :
1 ;
2 ;
3 ;
4 ;
5
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N = N´N´N=16*13*13=2704
N = 0,5(L-L) / (l´K)=0,5*(13840-3800)/(300*1,01)=16
N = B / (b´K)=2760/(200*1,01)=13
N = H / h=2790/200=13
Q = N´q´10-3=2704*10,0*10-3=27
2704*10*10-3 =27
N , .;
N, N, N , , .; ;
L,, , , ;
l, b, h , , , (. . 2.1);
L , ;
, =1,01;
Q , ;
q , ,
(, ) .
N = L / (l´K)=4144/303=13
L = L 2(N´l´K)=13840-2*(16*300*1,01)=4144
N = B / (b´K)=2260/(200*1,01)=11
= 2=2760-2*250=2260
= 250
N = H / h=2340/200=11
N = N´N´N=13*11*11=1573
Q = N´q´10 -3 =1638*10,0*10 -3=16
N, N, N , , .; ;
L, , H , , ;
N, Q , .; , .
, .
1.
, Q,
Q = 2Q + Q £ =2*27+16
2*27+16=70
Q > , , DQ £ Q , , ΔN.
, .
2. , , , , ( )
³ ;
= g´q´ (H h) / h =10*85*(6-0,2)/0,2=24650
P = K´g´ (N 1)´q =2,3*10*(16-1)*85=29325
g g 10/2;
, =600;
, g;
h , .
3.
C = 0,5´ [L (2N + N) ´l´] ³ 150=0,5*[13,84-(2*16+13)*0,3*1,01]=
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