, . : . 2hw = 2 1,464 = 2,928 () . 2 .
bh , bh = 90 .
: tS , tS = 8 .
.7.10 [1]. , .. ( (sloc ) ).
.7.6 [1] , . - -:
,
, - ;
Q ;
a = 1,05 12;
scr tcr ;
= h0 / 2 = 1482 / 2 = 741() = 74,1(); h0=1500-18=1482 ().
.
.
è ;
è .
I :
Q = RA = 1041,78 ;
M = RA*x; (0)=0; 1(0,536)=558,39 ; 2(1,268)=1320,98 .
II :
Q = RA 522,5 = 519,28 ();
= RA(1,268 + x) 522,5* = 0; (0)=1320,98 ; 3(0,732)=1701,09 ;(1,51)=2105,09 .
III :
Q = RA 522,5*2 = -3,22 ();
= RA(2,778 + ) 522,5(1,51 + ) 522,5* = 0; (0)=2105,09 ; (5,25)=2088,16 .
IV :
Q = -R = -525,72 ;
,
, .
- . " ";
- .24, [1];
; ;
, 2 = 51,66 (.25, [1]);
,
, 1 = 30,374 (.23, [1]), ;
;
, m - ;
; RS = 0,58*23 = 13,34 (/2) .
,
d = 146,4 (hef );
.
.
.
Q.
è ;
è .
I :
Q = RA = 716,52 ;
M = RA*x; (0)=0;(3,758)=2692,68 .
II :
Q = RA 522,5 = 194,02 ();
= RA(3,758 + x) 522,5* = 0; (0)=2692,68 ; (1,51)=2985,65 .
III :
Q = RA 522,5*2 = -328,48 ();
= RA(5,268 + ) 522,5(1,51 + ) 522,5* = 0; (0)=2985,65 ; (5,25)=1261,13 .
IV :
Q = -R = -850,98 ;
Q = 194,02 ; = ;
, .
; ;
, ; .
.
Q = 328,48 ; = ;
, .
; ;
, ; .
.
.
. , . , -0,8.
( ):
Rwf = 18 (/2) (.56,[1]).
Rwz = 0,45Run = 0,45*36=16,2 (/2) , .
|
|
kfmin = 7 () (.38, [1]).
bf = 1,1, bz = 1,15 (.34,[1]).
bf*gwf*Rwf = 1,1*1*18=19,8 (/2).
bz*gwz*Rwz = 1,15*1*16,2=18,63 (/2) min
gwf, gwz = 1 .
QX = 1163,4 Qmax.
- ;
IX = 1105987,0254 ;
lef = 35,52 ;
F = 522,5 ;
n = 2 ;
,
kf , kf , kf = 7 .
:
, F = 0, :
.
: kf , kf , è kf = 7 .
.
. .
:
;
RP = Run/gm = Ru = 35 (/2) (.1, [1]).
,
Ah = bh*th = 22*1,6 =35,2 (2) > = 33,24 2.
(..7.24, .30, [1]):
, blh = ;
.
:
= h + tw*S = 35,2+1,2*23,34 = 63,21 (2),
- ;
( ):
,
- .
:
j = 0,930 (.72, [1]).
.