. 3.93 3.94.
loc2 . 63, .
. 64, c1 = 200 < b = 800 ; a1 = 200 × 2+300 = 700 ; b1 = 200 × 2+200 = 600 ; loc2 = a1 b1 = 700 × 600 = 420000 2.
loc1 = 300 × 200 = 60000 2. 25, a = 1,0.
jb :
(195), rb gb9 = 0,9 (. . 9) : rb = 6,7 × 0,9 = 6,03 :
Rb, loc = ajb Rb = 1 × 9 × 6,03 = 11,5
( ajb = 1 × 1,9 = 1,9 > 1,0).
(194), y = 1,0 ,
= 1 × 11,5 × 60000 = 690000 H = 690 < N = 1000 ,
. . , . -1, 3 , 100´100 s = 100 (Rs,xy = 375 ).
. 3.95. jb = 1,9 < 3,5, jb = 1,9.
mx (99).
. 64 : x = 5; lx = 300 ; y = 4; ly = 400; sx = sy = 7,1 2 (Æ3); ef = lx l = 300 × 400 = 120000 2 > Aloc1 = 60 000 2,
(101) (100) y j:
js :
js = 4,5 ‑ 3,5 Aloc1 / Aef = 4,5 ‑ 3,5 × 60000/120000 = 2,75.
R*b,loc (197):
R*b,loc = Rb jb + jmxy Rs,xy js =
= 6,7 × 1,9+ 3,69 × 0,00183 × 375 × 2,75 = 19,7 .
(196):
R*b,loc Aloc1 = 19,7 × 60000 = 1182 × 103 H > N = 1000 ,
. . .
(198), jd = 0,5:
. . .
3.96(3.42). ( ) , ,
F £ aRbt um ho, (200)
F ¾ ;
a , :
........................ 1,00
.......... 0,85
.......................... 0,80
um ¾ , .
um F , , , 45 .65, ).
F , , , ( ) .
|
|
, 45 [, (. 65, )], (200) ho / ( ). , = 0,4 h.