1.1
, . 1.2, 1.3.
, . . 1.1, 1.2.
1. .
2. ( γb2 . 1 . 2 (. 1).
3. . 1.2, 1.3, , .
4. . 1.1, (ΣMs = 0; ΣX = 0) X ξ αm.
1.1 -
5. ΣX = 0 ξ.
6. , ξR αm. . 4 (. 1).
7. . ΣM = 0
8. , .
1.2 -
1.1 -
h, | b, | l, | - | |||
0.45 | 0.15 | 9.0 | 25 | A-III | 2Ø10 | |
0.45 | 0.18 | 6.0 | 25 | A-III | 2Ø10 | |
0.45 | 0.20 | 6.0 | 25 | A-II | 4Ø12 | |
0.45 | 0.22 | 3.0 | 25 | A-I | 2Ø14 | |
0.5 | 0.18 | 3.0 | 15 | A-III | 2Ø16 | |
0.5 | 0.20 | 3.0 | 20 | A-II | 2Ø18 | |
0.5 | 0.22 | 3.0 | 30 | A-I | 4Ø10 | |
0.5 | 0.25 | 9.0 | 20 | A-I | 2Ø12 | |
0.6 | 0.20 | 9.0 | 30 | A-I | 4Ø12 | |
0.6 | 0.22 | 9.0 | 20 | A-III | 2Ø12 | |
0.6 | 0.25 | 9.0 | 20 | A-III | 2Ø10 | |
0.6 | 0.30 | 3.0 | 20 | A-I | 4Ø10 | |
0.7 | 0.20 | 6.0 | 20 | A-I | 2Ø18 | |
0.7 | 0.22 | 12.0 | 30 | A-III | 4Ø10 | |
0.7 | 0.25 | 3.0 | 15 | A-I | 4Ø12 | |
0.7 | 0.35 | 12.0 | 25 | A-II | 3Ø16 | |
0.8 | 0.25 | 6.0 | 20 | A-III | 4Ø12 |
1.1
h, | b, | l, | - | |||
0.8 | 0.30 | 6.0 | 25 | A-II | 2Ø20 | |
0.8 | 0.35 | 9.0 | 30 | A-III | 3Ø10 | |
0.8 | 0.40 | 9.0 | 25 | A-I | 3Ø18 | |
0.9 | 0.30 | 12.0 | 20 | A-II | 2Ø20 | |
0.9 | 0.35 | 3.0 | 25 | A-I | 3Ø14 | |
0.9 | 0.40 | 3.0 | 15 | A-II | 3Ø10 | |
0.9 | 0.45 | 12.0 | 15 | A-III | 3Ø12 | |
1.0 | 0.45 | 6.0 | 25 | A-II | 3Ø12 |
. 1.3 -
1.2 -
|
|
h, | b, | l, | - | |||
0.45 | 0.15 | 3.0 | 25 | A-I | 2Ø14 | |
0.45 | 0.18 | 6.0 | 25 | A-II | 2Ø10 | |
0.45 | 0.20 | 3.0 | 15 | A-II | 4 Ø10 | |
0.45 | 0.22 | 3.0 | 20 | A-II | 2Ø10 | |
0.5 | 0.18 | 9.0 | 15 | A-I | 2Ø12 | |
0.5 | 0.20 | 6.0 | 30 | A-II | 2Ø10 | |
0.5 | 0.22 | 3.0 | 25 | A-III | 4Ø12 | |
0.5 | 0.25 | 6.0 | 30 | A-III | 2Ø18 | |
0.6 | 0.20 | 9.0 | 15 | A-III | 4Ø10 | |
0.6 | 0.22 | 3.0 | 25 | A-II | 2Ø10 | |
0.6 | 0.25 | 9.0 | 30 | A-II | 2Ø20 | |
0.6 | 0.30 | 6.0 | 15 | A-I | 4Ø12 | |
0.7 | 0.20 | 6.0 | 15 | A-III | 2Ø14 |
. 1.2
h, | b, | l, | - | |||
0.7 | 0.22 | 9.0 | 30 | A-III | 4Ø12 | |
0.7 | 0.25 | 3.0 | 20 | A-I | 4Ø10 | |
0.7 | 0.35 | 3.0 | 30 | A-III | 3Ø16 | |
0.8 | 0.25 | 6.0 | 20 | A-II | 4Ø12 | |
0.8 | 0.30 | 9.0 | 30 | A-II | 2Ø18 | |
0.8 | 0.35 | 3.0 | 20 | A-I | 3Ø10 | |
0.8 | 0.40 | 9.0 | 15 | A-III | 3Ø10 | |
0.9 | 0.30 | 3.0 | 15 | A-III | 2Ø12 | |
0.9 | 0.35 | 9.0 | 30 | A-I | 3Ø18 | |
0.9 | 0.40 | 3.0 | 25 | A-III | 3Ø18 | |
0.9 | 0.45 | 6.0 | 25 | A-II | 3Ø16 | |
1.0 | 0.45 | 9.0 | 30 | A-I | 3Ø14 |
1.2
, . 1.5, 1.6. . . 1.3 1.4.
1. .
2. ( γb2 . 1, . 1).
3. . 1.5 1.6 , , .
4. . 1.4 (ΣM = 0; ΣX = 0) X ξ αm.
.
. 1.4 -
5. (ΣX = 0) h0, αm ξ = 0,2 0,4 ( ).
6. ( 5 h < 60 10 h > 60).
7. .
8. ΣM = 0 αm. .
9. , ξR αR. . 4 (. 1).
10. (ΣX = 0) As As,min, [1, . 38] .
11. (.1, . 3), , 10 - 32 . .
|
|
.1.5 -
1.3 -
b, | a, | l0, | q, / | |||
0.15 | 0.04 | 9.9 | 0.003 | 15 | A-I | |
0.18 | 0.05 | 3.9 | 0.024 | 20 | A-III | |
0.18 | 0.04 | 12.3 | 0.003 | 20 | A-I | |
0.18 | 0.04 | 6.3 | 0.013 | 15 | A-II | |
0.18 | 0.04 | 3.0 | 0.099 | 20 | A-III | |
0.20 | 0.05 | 9.6 | 0.006 | 20 | A-I | |
0.20 | 0.05 | 3.0 | 0.083 | 20 | A-I | |
0.20 | 0.04 | 3.6 | 0.113 | 30 | A-II | |
0.20 | 0.04 | 9.0 | 0.015 | 20 | A-III | |
0.22 | 0.05 | 12.9 | 0.003 | 15 | A-III | |
0.22 | 0.05 | 6.0 | 0.042 | 30 | A-I | |
0.22 | 0.04 | 9.3 | 0.015 | 20 | A-II | |
0.22 | 0.05 | 3.0 | 0.256 | 30 | A-II | |
0.25 | 0.04 | 9.9 | 0.012 | 20 | A-III | |
0.25 | 0.05 | 6.0 | 0.030 | 15 | A-II | |
0.25 | 0.05 | 6.0 | 0.062 | 25 | A-III | |
0.25 | 0.04 | 9.6 | 0.034 | 25 | A-I | |
0.30 | 0.04 | 6.9 | 0.058 | 25 | A-I | |
0.30 | 0.04 | 9.0 | 0.055 | 30 | A-I | |
0.30 | 0.04 | 6.0 | 0.142 | 25 | A-II | |
0.30 | 0.04 | 12.6 | 0.048 | 30 | A-III | |
0.35 | 0.05 | 3.6 | 0.845 | 30 | A-III | |
0.35 | 0.04 | 6.6 | 0.137 | 25 | A-II | |
0.35 | 0.04 | 6.6 | 0.060 | 15 | A-III | |
0.35 | 0.04 | 6.9 | 0.099 | 20 | A-III |
.1.6 -
1.4 -
b, | a, | l0, | F, | |||
0.15 | 0.04 | 12.3 | 0.003 | 15 | A-I | |
0.18 | 0.05 | 3.0 | 0.016 | 20 | A-II | |
0.18 | 0.04 | 6.3 | 0.010 | 20 | A-III | |
0.18 | 0.04 | 12.0 | 0.010 | 30 | A-I | |
0.18 | 0.04 | 9.9 | 0.013 | 25 | A-III | |
0.20 | 0.05 | 12.0 | 0.008 | 30 | A-I | |
0.20 | 0.05 | 6.0 | 0.016 | 20 | A-II | |
0.20 | 0.04 | 3.0 | 0.038 | 25 | A-III | |
0.20 | 0.04 | 9.6 | 0.020 | 25 | A-II | |
0.22 | 0.05 | 3.6 | 0.022 | 15 | A-III | |
0.22 | 0.05 | 12.3 | 0.008 | 15 | A-III | |
0.22 | 0.04 | 12.9 | 0.009 | 15 | A-III | |
0.22 | 0.05 | 12.6 | 0.020 | 25 | A-I | |
0.25 | 0.04 | 9.0 | 0.016 | 20 | A-II | |
0.25 | 0.05 | 6.9 | 0.039 | 30 | A-II | |
0.25 | 0.05 | 12.3 | 0.023 | 25 | A-III | |
0.25 | 0.04 | 12.0 | 0.039 | 30 | A-II | |
0.30 | 0.04 | 9.6 | 0.034 | 25 | A-II | |
0.30 | 0.04 | 6.6 | 0.085 | 30 | A-III | |
0.30 | 0.04 | 9.9 | 0.064 | 25 | A-III | |
0.30 | 0.04 | 6.6 | 0.072 | 15 | A-III | |
0.35 | 0.05 | 3.0 | 0.182 | 25 | A-III | |
0.35 | 0.04 | 6.3 | 0.120 | 20 | A-II | |
0.35 | 0.04 | 12.0 | 0.046 | 15 | A-I | |
0.35 | 0.04 | 12.0 | 0.054 | 15 | A-II |
1.3
, ( ):
) ;
) ;
) ;
) , , ?
. 1.5, 1.6, 1.7 1.8.
1. .
2. . 1 2. (. 1).
3. .
4. ξ (ΣX = 0)
5. .
6. M 1 M 2 , , .
1.5 -
h, | b, | - | ||||
0.3 | 0.10 | 30 | A-II | 1Ø22 | 25 | |
0.3 | 0.15 | 25 | A-III | 1Ø25 | 30 | |
0.4 | 0.12 | 30 | A-III | 1Ø25 | 15 | |
0.4 | 0.15 | 25 | A-III | 1Ø22 | 20 | |
0.4 | 0.18 | 30 | A-I | 2Ø20 | 25 | |
0.4 | 0.20 | 25 | A-III | 2Ø18 | 30 | |
0.5 | 0.18 | 20 | A-II | 2Ø22 | 30 | |
0.5 | 0.20 | 25 | A-I | 2Ø16 | 15 | |
0.5 | 0.22 | 25 | A-II | 2Ø14 | 30 | |
0.5 | 0.25 | 30 | A-III | 2Ø18 | 25 | |
0.6 | 0.20 | 30 | A-II | 2Ø16 | 25 | |
0.6 | 0.22 | 15 | A-I | 2Ø10 | 20 | |
0.6 | 0.15 | 25 | A-III | 2Ø12 | 15 | |
0.6 | 0.30 | 30 | A-II | 2Ø20 | 25 | |
0.7 | 0.22 | 20 | A-III | 2Ø14 | 20 | |
0.7 | 0.25 | 25 | A-III | 2Ø12 | 20 | |
0.7 | 0.30 | 30 | A-II | 2Ø14 | 15 | |
0.7 | 0.35 | 25 | A-I | 3Ø10 | 20 | |
0.8 | 0.22 | 15 | A-II | 2Ø16 | 30 | |
0.8 | 0.25 | 30 | A-I | 3Ø 8 | 15 | |
0.8 | 0.30 | 25 | A-II | 2Ø12 | 30 | |
0.8 | 0.35 | 30 | A-III | 6Ø10 | 25 | |
0.9 | 0.30 | 30 | A-II | 2Ø14 | 20 | |
0.9 | 0.35 | 20 | A-I | 3Ø20 | 25 | |
0.9 | 0.40 | 30 | A-III | 4Ø10 | 15 |
|
|
1.6 -
h, | b, | - | ||||
0.3 | 0.10 | 30 | A-II | 1Ø16 | A-I | |
0.3 | 0.15 | 25 | A-III | 1Ø12 | A-II | |
0.4 | 0.12 | 30 | A-I | 1Ø10 | A-II | |
0.4 | 0.15 | 25 | A-III | 1Ø25 | A-II | |
0.4 | 0.18 | 30 | A-I | 2Ø12 | A-II | |
0.4 | 0.20 | 25 | A-I | 1Ø12 | A-II | |
0.5 | 0.18 | 20 | A-I | 2Ø14 | A-III | |
0.5 | 0.20 | 25 | A-II | 4Ø12 | A-I | |
0.5 | 0.22 | 25 | A-III | 2Ø14 | A-I | |
0.5 | 0.25 | 30 | A-II | 2Ø20 | A-III | |
0.6 | 0.20 | 30 | A-I | 2Ø12 | A-III | |
0.6 | 0.22 | 15 | A-II | 2Ø16 | A-I | |
0.6 | 0.15 | 25 | A-I | 2Ø14 | A-II | |
0.6 | 0.30 | 30 | A-II | 2Ø14 | A-I | |
0.7 | 0.22 | 20 | A-III | 2Ø18 | A-I | |
0.7 | 0.25 | 25 | A-II | 4Ø12 | A-I | |
0.7 | 0.30 | 30 | A-II | 2Ø14 | A-III | |
0.7 | 0.35 | 25 | A-II | 2Ø20 | A-I | |
0.8 | 0.22 | 15 | A-II | 2Ø12 | A-I | |
0.8 | 0.25 | 30 | A-I | 4Ø12 | A-III | |
0.8 | 0.30 | 25 | A-III | 4Ø14 | A-I | |
0.8 | 0.35 | 30 | A-I | 2Ø20 | A-II | |
0.9 | 0.30 | 30 | A-II | 4Ø20 | A-I | |
0.9 | 0.35 | 20 | A-I | 3Ø12 | A-II | |
0.9 | 0.40 | 30 | A-III | 6Ø20 | A-II |
1.7 -
h, | b, | - | . h, | |||
0.3 | 0.10 | 1Ø22 | A-I | 30 | 0.5 | |
0.3 | 0.15 | 1Ø22 | A-III | 25 | 0.5 | |
0.4 | 0.12 | 1Ø14 | A-II | 25 | 0.5 | |
0.4 | 0.15 | 1Ø10 | A-I | 15 | 0.5 | |
0.4 | 0.18 | 2Ø20 | A-II | 30 | 0.5 | |
0.4 | 0.20 | 2Ø22 | A-I | 25 | 0.6 | |
0.5 | 0.18 | 2Ø18 | A-II | 30 | 0.6 | |
0.5 | 0.20 | 2Ø14 | A-I | 25 | 0.7 | |
0.5 | 0.22 | 2Ø14 | A-I | 15 | 0.6 | |
0.5 | 0.25 | 2Ø22 | A-II | 25 | 0.4 | |
0.6 | 0.20 | 2Ø10 | A-II | 15 | 0.8 | |
0.6 | 0.22 | 4Ø14 | A-III | 30 | 0.8 | |
0.6 | 0.15 | 2Ø14 | A-III | 25 | 0.6 | |
0.6 | 0.30 | 2Ø12 | A-II | 30 | 0.8 | |
0.7 | 0.22 | 2Ø14 | A-II | 15 | 0.7 | |
0.7 | 0.25 | 2Ø12 | A-II | 30 | 0.8 | |
0.7 | 0.30 | 2Ø10 | A-III | 30 | 0.7 | |
0.7 | 0.35 | 3Ø14 | A-I | 30 | 0.8 | |
0.8 | 0.22 | 2Ø18 | A-II | 30 | 0.5 | |
0.8 | 0.25 | 2Ø16 | A-I | 25 | 0.6 | |
0.8 | 0.30 | 2Ø20 | A-I | 20 | 0.8 | |
0.8 | 0.35 | 3Ø16 | A-II | 25 | 0.5 | |
0.9 | 0.30 | 2Ø18 | A-III | 30 | 0.7 | |
0.9 | 0.35 | 3Ø22 | A-III | 25 | 0.6 | |
0.9 | 0.40 | 6Ø14 | A-I | 30 | 0.7 |
|
|
1.8 -
μ1, % | μ2, % | μ1, % | ||||
1.0 | 1.25 | 15 | A-I | 1.0 | ||
1.0 | 1.25 | 15 | A-II | 1.0 | ||
1.0 | 1.25 | 15 | A-III | 1.0 | ||
1.0 | 1.55 | 15 | A-I | 1.0 | ||
1.0 | 1.75 | 15 | A-II | 1.0 | ||
1.25 | 2.5 | 20 | A-I | 1.25 | ||
1.25 | 2.5 | 20 | A-II | 1.25 | ||
1.25 | 1.75 | 20 | A-III | 1.25 | ||
1.25 | 2.75 | 20 | A-I | 1.25 | ||
1.25 | 1.5 | 20 | A-II | 1.25 | ||
1.5 | 1.75 | 25 | A-I | 1.5 | ||
1.5 | 1.75 | 25 | A-II | 1.5 | ||
1.5 | 1.75 | 25 | A-III | 1.5 | ||
1.5 | 2.0 | 25 | A-I | 1.5 | ||
1.5 | 1.75 | 30 | A-II | 1.5 | ||
2.0 | 2.75 | 30 | A-I | 2.0 | ||
2.0 | 2.75 | 30 | A-II | 2.0 | ||
1.0 | 2.0 | 30 | A-III | 1.0 | ||
2.0 | 2.75 | 25 | A-I | 2.0 | ||
2.0 | 2.75 | 25 | A-II | 2.0 | ||
2.5 | 3.0 | 20 | A-I | 2.5 | ||
1.25 | 2.0 | 20 | A-II | 1.25 | ||
0.75 | 1.75 | 20 | A-III | 0.75 | ||
2.5 | 3.0 | 25 | A-I | 2.5 | ||
2.5 | 3.0 | 25 | A-II | 2.5 |
1.4
, . 1.8 1.9.
, . . 1.9 1.10.
1. .
2. ( γb2 . 1 2, . 1).
3. . 1.8 1.9 , .
4. . 1.7, (ΣM = 0; ΣX = 0), X ξ αm.
5. (ΣX = 0) X ξ.
. 1.7 -
6. : ξ ≥ 2 a / h0.
7. (ΣM = 0)
8. Fu,
.1.8 -
1.9 -
h, | b, | - | ||||
s | /s | |||||
0.4 | 0.1 | 15 | A-I | 2Ø28 | 1Ø22 | |
0.4 | 0.12 | 30 | A-III | 2Ø28 | 1Ø14 | |
0.4 | 0.15 | 25 | A-III | 2Ø32 | 1Ø25 | |
0.4 | 0.2 | 15 | A-III | 4Ø20 | 2Ø12 | |
0.45 | 0.12 | 25 | A-III | 2Ø32 | 1Ø28 | |
0.45 | 0.15 | 15 | A-III | 2Ø36 | 1Ø40 | |
0.45 | 0.2 | 15 | A-III | 4Ø22 | 2Ø16 | |
0.45 | 0.22 | 30 | A-II | 4Ø32 | 2Ø10 | |
0.5 | 0.15 | 15 | A-III | 2Ø28 | 1Ø18 | |
0.5 | 0.2 | 25 | A-III | 4Ø32 | 2Ø28 | |
0.5 | 0.22 | 15 | A-III | 4Ø22 | 2Ø9 | |
0.5 | 0.25 | 15 | A-I | 4Ø36 | 2Ø32 | |
0.55 | 0.15 | 15 | A-III | 2Ø36 | 1Ø36 | |
0.55 | 0.2 | 20 | A-III | 2Ø40 | 1Ø28 | |
0.55 | 0.22 | 30 | A-III | 4Ø36 | 2Ø32 | |
0.55 | 0.25 | 30 | A-III | 4Ø36 | 2Ø25 | |
0.6 | 0.2 | 25 | A-III | 4Ø36 | 2Ø36 | |
0.6 | 0.22 | 15 | A-III | 4Ø25 | 2Ø12 | |
0.6 | 0.25 | 20 | A-III | 4Ø32 | 2Ø20 | |
0.6 | 0.3 | 15 | A-III | 6Ø28 | 3Ø25 | |
0.7 | 0.22 | 15 | A-I | 4Ø36 | 2Ø18 | |
0.7 | 0.25 | 25 | A-III | 4Ø36 | 2Ø16 | |
0.7 | 0.3 | 25 | A-III | 6Ø32 | 3Ø14 | |
0.7 | 0.35 | 15 | A-III | 6Ø36 | 3Ø36 | |
0.8 | 0.4 | 15 | A-II | 6Ø36 | 3Ø9 |
|
|
.1.9 -
1.10 -
h, | b, | - | ||||
s | /s | |||||
0.4 | 0.1 | 25 | A-I | 2Ø36 | 1Ø28 | |
0.4 | 0.12 | 25 | A-III | 2Ø25 | 1Ø8 | |
0.4 | 0.15 | 15 | A-I | 2Ø32 | 1Ø18 | |
0.4 | 0.2 | 25 | A-III | 4Ø36 | 2Ø40 | |
0.45 | 0.12 | 15 | A-II | 2Ø36 | 1Ø36 | |
0.45 | 0.15 | 15 | A-III | 2Ø36 | 1Ø40 | |
0.45 | 0.2 | 15 | A-III | 4Ø22 | 2Ø16 | |
0.45 | 0.22 | 20 | A-III | 4Ø36 | 2Ø40 | |
0.5 | 0.15 | 15 | A-III | 2Ø25 | 1Ø7 | |
0.5 | 0.2 | A-III | 4Ø28 | 2Ø10 | ||
0.5 | 0.22 | 15 | A-II | 4Ø32 | 2Ø32 | |
0.5 | 0.25 | 15 | A-I | 4Ø32 | 2Ø16 | |
0.55 | 0.15 | 15 | A-III | 2Ø36 | 1Ø28 | |
0.55 | 0.2 | 15 | A-III | 4Ø32 | 2Ø36 | |
0.55 | 0.22 | 20 | A-III | 4Ø28 | 2Ø18 | |
0.55 | 0.25 | 15 | A-I | 4Ø32 | 2Ø6 | |
0.6 | 0.2 | 15 | A-I | 4Ø32 | 2Ø18 | |
0.6 | 0.22 | 15 | A-III | 4Ø25 | 2Ø14 | |
0.6 | 0.25 | 15 | A-III | 4Ø32 | 2Ø32 | |
0.6 | 0.3 | 20 | A-III | 6Ø36 | 3Ø36 | |
0.7 | 0.22 | 15 | A-III | 4Ø40 | 2Ø16 | |
0.7 | 0.25 | 15 | A-III | 4Ø40 | 2Ø9 | |
0.7 | 0.3 | 15 | A-II | 6Ø32 | 3Ø20 | |
0.7 | 0.35 | 15 | A-II | 6Ø32 | 3Ø14 | |
0.8 | 0.4 | 15 | A-III | 6Ø36 | 3Ø32 |
1.5
, . 1.11 1.12. As A/s
. . 1.11 1.12.
1. .
2. ( γb2 . 1 2, . 1).
3. . 1.11 1.12, , , .
4. . 1.10, (ΣM = 0; ΣX = 0) X ξ αm.
5.. (ΣM = 0) αm. .
6. αm. αR, .1, . 1, . αm.> αR, , .
. 1.10.
7. ΣM = 0 A/s αm = αR.
8. ΣX = 0 A/s As, min [1, . 38], .
9. .1 (. 1).
10. .
. 1.11 -
1.11 -
h, | b, | l, | a = a/, | , | ||
0.4 | 0.10 | 3.0 | 0.04 | 0.0203 | 15 | |
0.4 | 0.12 | 3.3 | 0.04 | 0.0327 | 30 | |
0.4 | 0.15 | 3.6 | 0.05 | 0.0286 | 20 | |
0.4 | 0.20 | 3.9 | 0.05 | 0.0461 | 30 | |
0.45 | 0.12 | 6.0 | 0.04 | 0.0255 | 30 | |
0.45 | 0.15 | 3.0 | 0.05 | 0.0643 | 30 | |
0.45 | 0.20 | 3.3 | 0.05 | 0.0624 | 30 | |
0.45 | 0.22 | 3.6 | 0.04 | 0.0733 | 25 | |
0.5 | 0.15 | 3.9 | 0.04 | 0.0369 | 30 | |
0.5 | 0.20 | 6.0 | 0.05 | 0.0366 | 15 | |
0.5 | 0.22 | 6.3 | 0.04 | 0.0495 | 15 | |
0.5 | 0.25 | 6.6 | 0.04 | 0.0354 | 20 | |
0.55 | 0.15 | 9.0 | 0.05 | 0.0292 | 15 | |
0.55 | 0.20 | 6.0 | 0.04 | 0.0585 | 30 | |
0.55 | 0.22 | 6.3 | 0.05 | 0.0684 | 25 | |
0.55 | 0.25 | 6.6 | 0.05 | 0.0692 | 30 | |
0.6 | 0.20 | 6.9 | 0.04 | 0.0585 | 30 | |
0.6 | 0.22 | 9.0 | 0.05 | 0.0483 | 25 | |
0.6 | 0.25 | 9.3 | 0.04 | 0.0650 | 25 | |
0.6 | 0.30 | 6.9 | 0.05 | 0.0539 | 30 | |
0.7 | 0.22 | 9.9 | 0.04 | 0.0655 | 20 | |
0.7 | 0.25 | 12.0 | 0.05 | 0.0037 | 15 | |
0.7 | 0.30 | 9.0 | 0.04 | 0.1124 | 25 | |
0.7 | 0.35 | 9.3 | 0.05 | 0.0918 | 25 | |
0.8 | 0.40 | 12.0 | 0.04 | 0.0900 | 20 |
.1.12 -
1.12 -
h, | b, | l, | a = a/, | , | ||
0.4 | 0.10 | 3.0 | 0.04 | 0.114 | 25 | |
0.4 | 0.12 | 3.3 | 0.04 | 0.107 | 30 | |
0.4 | 0.15 | 3.6 | 0.05 | 0.148 | 25 | |
0.4 | 0.20 | 3.9 | 0.05 | 0.102 | 15 | |
0.45 | 0.12 | 6.0 | 0.04 | 0.056 | 15 | |
0.45 | 0.15 | 3.0 | 0.05 | 0.177 | 20 | |
0.45 | 0.20 | 3.3 | 0.05 | 0.230 | 25 | |
0.45 | 0.22 | 3.6 | 0.04 | 0.170 | 15 | |
0.5 | 0.15 | 3.9 | 0.04 | 0.243 | 30 | |
0.5 | 0.20 | 6.0 | 0.05 | 0.212 | 30 | |
0.5 | 0.22 | 6.3 | 0.04 | 0.204 | 25 | |
0.5 | 0.25 | 6.6 | 0.04 | 0.227 | 30 | |
0.55 | 0.15 | 9.0 | 0.05 | 0.098 | 25 | |
0.55 | 0.20 | 6.0 | 0.04 | 0.234 | 25 | |
0.55 | 0.22 | 6.3 | 0.05 | 0.185 | 15 | |
0.55 | 0.25 | 6.6 | 0.05 | 0.227 | 25 | |
0.6 | 0.20 | 6.9 | 0.04 | 0.256 | 30 | |
0.6 | 0.22 | 9.0 | 0.05 | 0.193 | 25 | |
0.6 | 0.25 | 9.3 | 0.04 | 0.200 | 25 | |
0.6 | 0.30 | 6.9 | 0.05 | 0.297 | 30 | |
0.7 | 0.22 | 9.9 | 0.04 | 0.247 | 25 | |
0.7 | 0.25 | 12.0 | 0.05 | 0.246 | 30 | |
0.7 | 0.30 | 9.0 | 0.04 | 0.274 | 15 | |
0.7 | 0.35 | 9.3 | 0.05 | 0.427 | 30 | |
0.8 | 0.40 | 12.0 | 0.04 | 0.300 | 15 |
1.6
, . 1.13 1.14.
b × h, B, A. A/s. As A/s. A/s. ( φb2 [1, .15]).
? . 1.13 1.14.
1. .
2. .1 2 (. 1).
3. .
4. 1.1.
5. 1.4.
6. 1 2, Fu, 1 Fu, 2. , .
.1.13.
1.13 -
b, | h, | a, | - s. | |||
0.10 | 0.4 | 0.04 | 20 | A-II | 1Ø28 | |
0.12 | 0.4 | 0.04 | 35 | A-II | 2Ø32 | |
0.15 | 0.4 | 0.04 | 40 | A-I | 2Ø32 | |
0.20 | 0.4 | 0.04 | 35 | A-II | 2Ø32 | |
0.12 | 0.45 | 0.04 | 30 | A-II | 2Ø32 | |
0.15 | 0.45 | 0.04 | 25 | A-I | 4Ø32 | |
0.20 | 0.45 | 0.04 | 40 | A-I | 4Ø32 | |
0.22 | 0.45 | 0.04 | 40 | A-I | 5Ø22 | |
0.15 | 0.5 | 0.04 | 30 | A-II | 4Ø32 | |
0.20 | 0.5 | 0.04 | 40 | A-II | 4Ø32 | |
0.22 | 0.5 | 0.04 | 25 | A-II | 4Ø32 | |
0.25 | 0.5 | 0.04 | 15 | A-I | 4Ø32 | |
0.15 | 0.55 | 0.04 | 25 | A-I | 2Ø32 | |
0.20 | 0.55 | 0.04 | 20 | A-I | 5Ø25 | |
0.22 | 0.55 | 0.04 | 15 | A-II | 5Ø28 | |
0.25 | 0.55 | 0.04 | 30 | A-II | 5Ø28 | |
0.20 | 0.6 | 0.04 | 25 | A-III | 5Ø25 | |
0.22 | 0.6 | 0.04 | 30 | A-III | 5Ø28 | |
0.25 | 0.6 | 0.04 | 40 | A-II | 6Ø22 | |
0.30 | 0.6 | 0.04 | 30 | A-III | 5Ø32 | |
0.22 | 0.7 | 0.04 | 15 | A-III | 5Ø22 | |
0.25 | 0.7 | 0.04 | 15 | A-II | 6Ø28 | |
0.30 | 0.7 | 0.04 | 35 | A-III | 5Ø32 | |
0.35 | 0.7 | 0.04 | 20 | A-II | 6Ø32 | |
0.40 | 0.8 | 0.04 | 20 | A-II | 5Ø32 |
.1.14 -
1.14 -
b, | h, | a, | ||||
s | /s | |||||
0.10 | 0.4 | 0.04 | 30 | A-I | 1Ø32 | |
0.12 | 0.4 | 0.04 | 35 | A-III | 2Ø28 | |
0.15 | 0.4 | 0.04 | 40 | A-II | 2Ø32 | |
0.20 | 0.4 | 0.04 | 30 | A-II | 2Ø32 | |
0.12 | 0.45 | 0.04 | 30 | A-II | 2Ø32 | |
0.15 | 0.45 | 0.04 | 15 | A-II | 4Ø32 | |
0.20 | 0.45 | 0.04 | 30 | A-II | 4Ø28 | |
0.22 | 0.45 | 0.04 | 20 | A-II | 5Ø20 | |
0.15 | 0.5 | 0.04 | 35 | A-III | 4Ø32 | |
0.20 | 0.5 | 0.04 | 30 | A-II | 5Ø22 | |
0.22 | 0.5 | 0.04 | 40 | A-II | 4Ø32 | |
0.25 | 0.5 | 0.04 | 35 | A-III | 4Ø32 | |
0.15 | 0.55 | 0.04 | 30 | A-III | 5Ø18 | |
0.20 | 0.55 | 0.04 | 35 | A-II | 4Ø28 | |
0.22 | 0.55 | 0.04 | 40 | A-II | 4Ø32 | |
0.25 | 0.55 | 0.04 | 20 | A-II | 5Ø28 | |
0.20 | 0.6 | 0.04 | 15 | A-II | 4Ø32 | |
0.22 | 0.6 | 0.04 | 20 | A-I | 6Ø22 | |
0.25 | 0.6 | 0.04 | 25 | A-II | 6Ø28 | |
0.30 | 0.6 | 0.04 | 40 | A-II | 5Ø32 | |
0.22 | 0.7 | 0.04 | 35 | A-III | 6Ø25 | |
0.25 | 0.7 | 0.04 | 35 | A-II | 5Ø32 | |
0.30 | 0.7 | 0.04 | 20 | A-II | 6Ø32 | |
0.35 | 0.7 | 0.04 | 25 | A-II | 6Ø28 | |
0.40 | 0.8 | 0.04 | 30 | A-III | 5Ø32 |