(.4.1) , .
, , .
:
d, D, , ,
206 30 62 16 19,5
d, D, , ,
207 35 72 17 25,5
:
1. XYZ ( 120).
2. ( ) , , .
3. .
4. .
5. .
6. .
. 4.2
, : 
, 
. 
, . .
. (38)
(39)
, :
, (40)
, -; 
, 
.
:
, (41)
, (42)
, (43)
, ; 
, ; 
, .
, :
; (44)
.
:
1.
∑M= R×2-Fr× =0
∑M=Fr×- R×2=0
R= Fr/=560,66/2=280,33
R= Fr/ 560,66/2=280,33
1 : =-R×Z
Z1=0; M=0;
Z1=; =-R×=-280,33×0,029=-8,13 -
2 : =- R×Z2
Z2=0; M=0;
Z2=; =-R×=-280,33×0,029=-8,13 -
2.
∑M=F1×(2+)-2a× R - Ft×2a=0
∑M=F1×+a×Ft-R×2a=0
R= (F×+a×Ft)/2a=(1001,87×0,050+0,029×1540,41)/(2×0,029)= 1633,89
R = (F1(2+)-a×Ft)/2=(1001,87(0,058+0,050)-1540,41×0,029)/0,058=1095,35
|
|
|
: - F1+ R + Ft- R=0; -1001,87+1095,35+1540,41-1633,89=0
1 : M=- F1×Z1
Z1=0; M=0;
Z1=; M=- F1×=1001,87×0,050=-50,09-.
2 : M=- F1×Z2+ R(Z2- )
Z2=; M=- F1× =-1001,87×0,050=-50,09 -;
Z2= +a;M=- F1×(+a)+R×=-1001,870,079+1095,350,029=-47,38 -
3 : =- R×Z 
Z =0; M=0;
Z =; =-R×=-1633,89×0,029=-47,38 -
3.
R= 
= 1130,65 =Fr
R= 
= 1657,76 =FrB
4.
= 
=50,09 -
= 
=81,46 -
5.
, .
1.
∑M=Fr×a-R×=0
∑M=-Fr2×a+R×2=0
R= Fr/ =560,66/2=280,33
R= Fr/ =560,66/2=280,33
1 : M=R×Z1
Z1=0; M=0;
Z1=; M=R×=280,33×0,029=8,13 -
2 : M=R×Z2
Z2=0; M=0;
Z2=1; M=R×=280,33×0,029=8,13 -
2
∑M=F2×f- R×2 + Ft×a=0
∑ M=-Ft×-R×2+ F2×(2+f)=0
R= (F2(f+2a)- Ft×a)/2=(1422,04(0,067+0,058)/0,058=2294,54
R= (Ft×a+ F2×f)/2=(1540,4×0,029+1422,04×0,067)/0,058=2412,9
: -1422,04+2412,9+1540,4-2294,54=0
1 : M=R×Z1
Z1=0; M=0;
Z1=; M=R×=2412,9×0,029=69,97 -
2 : M= R×Z2- Ft(Z2-)
Z2=; M= R×=2412,9×0,029=69,97 -;
Z2=2; M=R×2- Ft× =2412,9×0,058-1540,41×0,029=95,28 -
3 : M= F2×Z
Z3=; M= F2×f=1422,04×0,067=95,28 -;
Z3=0; M=0
3.
R= 
=2429,13 =Fr
R= 
=2311,6 =Fr
4.
= 
=95,28 -
= 
=160,71 -
5.
, .
. 4.3.
