5. , . 1-, 1- , 11- 11- l = 0.4 +(6/2) = 3.4
J = 3,4*0,383/12) = 15,6*10-3 4
EJc = 2080*106*15.6*10-3 = 32.4*106 *4;
EJ + EJ =45,8*106 + 32,4*106 = 78,2*106 *4;
EJ + 0.4EJ =45,8*106 + 0,4*32,4*106 = 58,8*106 *4;
1-, 1-, 11-, 11- 6 :
J = 6*0,383/12) = 27,4*10-3 4
EJc = 2080*106*27,4*10-3 = 57,1*106 *4;
EJ + EJ =55,4*106 + 57,1*106 = 112,5*106 *4;
EJ + 0.4EJ =55,4*106 + 0,4*57,1*106 = 78,28*106 *4;
2- 10- 2- 10-:
2- 10- 2- 10-:
l=6/2+0.5=3.5
J = 3,5*0,383/12) = 16*10-3 4
EJc = 2080*106*16*10-3 = 33.3*106 *4;
E J = 2,06*1011*6,94*10-5 = 14.3*106 *4;
EJ + EJ =14,3*106 + 33,3*106 = 47,6*106 *4;
EJ + EJ =45,8*106 + 33,3*106 = 79,1*106 *4;
EJ + 0.4EJ =45,8*106 + 0,4*33,3*106 = 59,1*106 *4;
6. :
7. , . .
, : 6,78*1,8*54,8*2=1340 ¼ , : 0,25*6,78*2(6,15*54,8 3,6*5*3) = 1070 17076 , 15 733 .
8.
9.
1<β = 1,8 / i <2,5 β = 1,8 / 1,35 = 1.33 > 1,0
10. , :
) ,
S=1*2*3*Qk*A*βi*K0*Kψ ηik = 1*0.25*1*15 733*0.25*1.36*1*1= 1337.3
:
)
1 11
S=1* 1*0.25*1*27,7(1/6,15)*0.25*1.36*1*1= 0,38 /
2-10
S=0,975* 1*0.25*1*27,7(1/6,15)*0.25*1.36*1*1= 0,37 /
) ,
Qc =1* 6.78*3,4*6.15 = 141,77 ;
S=1* 1*0.25*1*(141,77/6,15)*0.25*1.36*1*1= 1,95 /
Qc =1* 6.78*6*6.15 = 250,18
|
|
S=0,975* 1*0.25*1*(250,18/6,15)*0.25*1.36*1*1= 3,37 /
11. , .
1 , 2
30, , , . dkj 0,02 , , Sik. =60, dxkj= 0.02*60 = 1.2; = 54, dk j= 0.02*54 = 1.08.
, .
φ
, - ; , - ;
( )
:
) :
1:
- ; - ; - .
=108,55 + (3,12*29,5 / 23860)*1327,53*1,2 = 114,7 ;
2
=111,15 + (3,28*24 / 23860)*1327,53*1,2 = 116,4 ;
3
=104,4 + (3,08*18 / 23860)*1327,53*1,2 = 108,1 ;
4
=104,4 + (3,08*12 / 23860)*1327,53*1,2 = 106,8 ;
5
=104,4 + (3,08*6 / 23860)*1327,53*1,2 = 105,6 ;
6
= =104,4 ;
7
=104,4 - (3,08*6 / 23860)*1327,53*1,2 = 103,2 ;
8
=104,4 - (3,08*12 / 23860)*1327,53*1,2 = 102,0 ;
9
=104,4 - (3,08*18 / 23860)*1327,53*1,2 = 100,7 ;
10
=111,15 - (3,28*24 / 23860)*1327,53*1,2 = 105,9,4 ;
11
=108,55 - (3,12*29,5 / 23860)*1327,53*1,2 = 102,4 ;
)
=288,05 + (8,15*26,8 / 23860)*1337,3*1,08 = 301,3 ;
=310,26 + (8,78*9/ 23860)*1337,3*1,08 = 315,0 ;
=310,26 - (8,78*9/ 23860)*1337,3*1,08 = 305,5 ;
=288,05 - (8,15*26,8 / 23860)*1337,3*1,08 = 274,8 ;
12. M Q .