Toisí, meáchan teoiriciúil, agus paraiméadair fhisiceacha na bpíopaí cruach cearnach

Tábla A, Meáchan teoiriciúil agus paraiméadair fhisiceacha toisí le haghaidh píopaí cruach cearnacha

基本尺寸 Toisí bunúsacha 截面面积 Limistéar trasghearrtha 理论重量 Meáchan teoiriciúil 惯性矩 Nóiméad táimhe Modal rannóige 截面模数
A S F G Jx-Jy Wx-Wy
MM c㎡ kg/m cm⁴ cm3
12 0.8 0. 347 0. 273 0. 072 0. 119
1 0. 423 0. 332 0. 084 0. 140
14 1 0. 503 0. 395 0. 139 0. 199
1.5 0. 711 0. 558 0. 181 0. 259
16 1 0. 583 0. 458 0. 216 0. 270
1.5 0. 831 0. 653 0. 286 0. 357
18 1 0. 663 0. 520 0. 315 0. 351
1.5 0. 951 0. 747 0. 424 0. 471
2 1. 211 0. 951 0. 505 0. 561
20 1 0. 743 0. 583 0. 442 0. 442
1.5 1. 071 0. 841 0. 601 0. 601
2 1. 371 1. 076 0. 725 0. 725
2.5 1. 643 1. 290 0. 817 0. 817
22 1 0. 823 0. 646 0. 599 0. 544
1.5 1. 191 0. 935 0. 822 0. 748
2 1. 531 1. 202 1. 001 0. 910
2.5 1. 843 1. 447 1. 140 1. 036
25 1.5 1. 371 1. 077 1. 246 0. 997
2 1. 771 1. 390 1. 535 1. 228
2.5 2. 143 1. 682 1. 770 1. 416
3 2. 485 1. 951 1. 955 1. 564
30 2 2. 171 1. 704 2. 797 1. 865
3 3. 085 2. 422 3. 670 2. 447
3.5 3. 500 2. 747 3. 996 2. 664
4 3. 885 3. 050 4. 256 2. 837
32 2 2. 331 1. 830 3. 450 2. 157
3 3. 325 2. 611 4. 569 2. 856
3.5 3. 780 2. 967 4. 999 3. 124
4 4. 205 3. 301 5. 351 3. 344
35 2 2. 571 2. 018 4. 610 2. 634
3 3. 685 2. 893 6. 176 3. 529
3.5 4. 200 3. 297 6.799 3. 885
4 4.685 3. 678 7. 324 4. 185
36 2 2. 651 2. 081 5. 048 2. 804
3 3. 805 2. 987 6.785 3. 769
4 4. 845 3. 804 8. 076 4. 487
5 5.771 4. 530 8. 975 4. 986
40 2 2. 971 2. 332 7. 075 3. 537
3 4. 285 3. 364 9.622 4. 811
4 5. 485 4. 306 11.60 5. 799
5 6. 571 5. 158 13.06 6.532
42 2 3. 131 2. 458 8.265 3. 936
3 4. 525 3. 553 11.30 5. 380
4 5. 805 4. 557 13.69 6. 519
5 6. 971 5. 472 15.51 7. 385
45 2 3. 371 2. 646 10.29 4. 574
3 4.885 3. 835 14.16 6.293
4 6.285 4. 936 17.28 7.679
5 7. 571 5. 943 19.72 8.763
50 2 3. 771 2. 960 14.36 5. 743
3 5. 485 4. 306 19.94 7. 975
4 7. 085 5. 562 24.56 9.826
5 8.571 6.728 28.32 11.33
55 2 4. 171 3. 274 19.38 7. 046
3 6. 085 4.777 27.11 9.857
4 7. 885 6. 190 33.66 12.24
5 9.571 7. 513 39.11 14.22
60 3 6.685 5. 248 35.82 11.94
4 8.685 6. 818 44.75 14.92
5 10.57 8.298 52.35 17.45
6 12.34 9.688 58.72 19.57
65 3 7. 285 5. 719 46.22 14.22
4 9.485 7. 446 58.05 17.86
5 11.57 9. 083 68.29 21.01
6 13.54 10.63 77.03 23.70
70 3 7. 885 6. 190 58.46 16.70
4 10.29 8.074 73.76 21.08
5 12.57 9.868 87.18 24.91
6 14.74 11.57 98.81 28.23
75 4 11.09 8. 702 92.08 24.55
5 13.57 10.65 109.3 29.14
6 15.94 12.51 124.4 33.16
8 19.79 15.54 141.4 37.72
80 4 11.89 9. 330 113.2 28.30
5 14.57 11.44 134.8 33.70
6 17.14 13.46 154.0 38.49
8 21.39 16.79 177.2 44.30
90 4 13.49 10.59 164.7 36.59
5 16.57 13.01 197.2 43.82
6 19.54 15.34 226.6 50.35
8 24.59 19.30 265.8 59.06
100 5 18.57 14.58 276.4 55.27
6 21.94 17.22 319.0 63.80
8 27.79 21.82 379.8 75.95
10 33.42 26.24 432.6 86.52
108 5 20.17 15.83 353.1 65.39
6 23.86 18.73 408.9 75.72
8 30.35 23.83 491.4 91. 00
10 36.62 28.75 564.3 104.5
120 6 26.74 20.99 573.1 95.51
8 34.19 26.84 696.8 116.1
10 41.42 32.52 807.9 134.7
12 48.13 37.78 897.0 149.5
125 6 27.94 21.93 652.7 104.4
8 35.79 28.10 797.0 127.5
10 43.42 34.09 927.2 148.3
12 50.53 39.67 1033.2 165.3
130 6 29.14 22.88 739.5 113.8
8 37.39 29.35 906.3 139.4
10 45.42 35.66 1057.6 162.7
12 52.93 41.55 1182.5 181.9
140 6 31.54 24.76 935.3 133.6
8 40.59 31.86 1153.9 164.8
10 49.42 38.80 1354.1 193.4
12 57.73 45.32 1522.8 217.5
150 8 43.79 34.38 1443. 0 192.4
10 53.42 41.94 1701.2 226.8
12 62.53 49.09 1922.6 256.3
14 71.11 55.82 2109.2 281.2
160 8 46.99 36.89 1776.7 222.1
10 57.42 45.08 2103.1 262.9
12 67.33 52.86 2386.8 298.4
14 76.71 60.22 2630.1 328.8
180 8 53.39 41.91 2590.7 287.9
10 65.42 51.36 3086.9 343.0
12 76.93 60.39 3527.6 392.0
14 87.91 69.01 3915.3 435.0
200 10 73.42 57.64 4337.6 433.8
12 86.53 67.93 4983.6 498.4
14 99.11 77.80 5562.3 556.2
16 111.2 87.27 6076.4 607.6
250 10 93.42 73.34 8841.9 707.3
12 110.5 86.77 10254.2 820.3
14 127.1 99.78 11556.2 924.5
16 143.2 112.4 12751.4 1020.1
280 10 105.4 82.76 12648.9 903.5
12 124.9 98.07 14726.8 1051.9
14 143.9 113.0 16663.5 1190.2
16 162.4 127.5 18462.8 1318.8
Nuair a S<=6 mm, R-1.5S, taispeántar an fhoirmle molta chun meáchan na teoirice bainistíochta cearnacha a ríomh sa chothromóid (A1);
Nuair a S>6mm, R=2S, taispeántar an fhoirmle a mholtar chun meáchan na teoirice bainistíochta cearnaí a ríomh sa chothromóid (A2).
G=0.015 7S (2A- 2.858 4S) (A1)
G=0.015 7S (2A- 3.287 6S) (A2)
San fhoirmle:
G - Meáchan teoiriciúil píopa cruach cearnach (le dlús 7.85 kg/dm3), i gcileagraim in aghaidh an mhéadair (kg/m);
A - Fad taobh an phíobáin chruach cearnach, i milliméadair (mm)
S - tiús balla ainmniúil de phíobán cruach cearnach, i milliméadair (mm)

 

 

 

Am postála: Jun-28-2023