. , .
.
, .. - . . , .
, , 0,25l. , 5.
( ) .
, n ln ln+1, (.35):
.15
.
QA1 = Q1A =
Q12 =
Q21 =
Q2C = QC2 =
QC3 = Q3C =
Q34 = Q43 =
Q4D = QD4 =
Q2B = QB2 = Q3C = QC3 = 0.
.17.
Q , :
X0 = Q12 /q = 58,21/20 = 2,91,
max = Q12×X0 /2 - M12 = 58,21×2,91/2 - 19,28 = 65,41 .
.
1 (.16) x y,
Sx = 4,82 + N12 = 0; N12 = - 4,82;
Sy = - (58,21 + N1A) = 0; N1A = - 58,21;
. 16
2 (.16).
Sx = N23- N21 = 0; N23 = N21 = -4,82;
Sy = - (61,79 + 10 + N2B) = 0; N2B = -61,79-10 = -71,79;
3 (.16 ).
Sx = N34 - N32 = 0; N34 = N32 = -4,82;
Sy = 10 + 8,22 - N3C = 0; N3C = 10 + 8,22 = 18,22;
4 (.16).
Sy = - 8,22 - N4D = 0; N4D = -8,22.
.17.
Q N (.18).
, :
Sx = 4,82 - 4,82 = 0;
Sy = 58,21 + 71,79 - 18,22 + 8,22 - 20×6 = 0.
12. (.34).
.34
1. ?
2. ?
|
|
3. ?
.33
.17
.18
1. ? ?
2. ?
3. ?
4. ?