| σ, /2 () | , / | ||
| 2 | . 2 5 | . 5 | |
| 200 200 250 250 | ---220 ---460 ---680 | ---100 ---220 ---460 | ---68 ---100 ---220 |
: 1. : hm = (0,10,5)da1, ; 2m ≤ hm ≤ 0,25d2, .
2. : - ; - ; - ; - ; - ; - , , ; - .
57
| 400, 2/ () | 29 35 | 41 51 | 61 75 | 90 100 | 135 165 | 198 242 | 414 506 | 612 700 |
: 1. , , .
2. (V< 3 /) : , 202, -24, -1 .
3. ( ) ( 16×1,5; 20×1,5).
58.1
d -
| d d, | |||||
| 0,88 | 0,85 | 0,81 | 0,76 | 0,71 | |
| 0,77 | 0,73 | 0,7 | 0,67 | 0,62 | |
58.2
F -
| Ra, | F σ, /2 | |||
| 0,40,1 3,20,8 2,56,3 | 1,05 1,2 | 1,10 1.25 | 1,15 1,35 | 1,25 1,50 |
58.3
υ-
| σ, /2 | υ | |||
| σ ≤1,5 | σ =1,82,0 | |||
| 600800 8001000 | 1,51,7 1,31,5 | 1,61,7 - | 2,42,8 - | |
| 6001500 | 1,11,25 | 1,51,6 | 1,72,1 | |
| - | 1,11,3 | 1,31,5 | 1,62,0 | |
| 700800 | 1,41,5 | - | - |
58.4
σ, τ -
( )
| σ, /2 | σ | τ | |
| 1,65 1,9 2,15 2,5 | 1,4 1,55 1,7 1,9 | 1,4 1,7 2,05 2,4 |
|
|
|
59
δ
D ()
| D | 52 | .52 80 | .80 120 | .120 170 |
| δ | 45 | 67 | 7,59 | 1012,5 |
60
d z
| D, | 4062 | 6395 | 100145 | 150220 |
| d, | ||||
δ1 = δ; δ2 = 1,2δ. - 15.
61
δ , d z D
| D, | 5062 | 6395 | 100145 | 150200 |
| δ, | ||||
| d, | ||||
| z |
( ) = D + (4,04,4)d.
δ1 ≈ 1,2δ.
() ≈ d.
62
( 24795-81),
| d = D | ||||||
| d1 = D1 | d2 = D2 | d1 = D1 | d2 = D2 | |||
| 4,918 | 5,350 | 0,75 | 5,188 | 5,513 | ||
| 2,25 | 6,647 | 7,188 | 6,918 | 7,350 | ||
| 1,5 | 8,376 | 9,026 | 1,25 | 8,647 | 9,188 | |
| 1,75 | 10,106 | 10,863 | 1,25 | 10,647 | 11,188 | |
| (14) | 11,835 | 12,701 | 1,5 | 12,376 | 13,026 | |
| 13,835 | 14,701 | 1,5 | 14,376 | 15,026 | ||
| (18) | 2,5 | 15,294 | 16,376 | 1,5 | 16,376 | 17,026 |
| 2,5 | 17,294 | 18,376 | 1,5 | 18,376 | 19,026 | |
| (22) | 2,5 | 19,294 | 20,376 | 1,5 | 20,376 | 21,026 |
| 20,752 | 22,051 | 21,835 | 22,701 | |||
| 3,5 | 26,211 | 27,727 | 27,835 | 28,701 | ||
| 31,670 | 33,402 | 32,752 | 34,051 | |||
| 4,5 | 37,129 | 39,077 | 38,752 | 40,051 | ||
| 42,527 | 44,752 | 44,752 | 46,051 | |||
| 5,5 | 50,046 | 52,428 | 52,752 | 51,051 | ||
| 57,505 | 60,103 | 59,670 | 61,402 |
