点击 
在螺栓表里选择螺栓名义直径 根据Type of Threads. 如果需要使用螺栓表以外的螺栓, 输入名义直径并点击 User Root Area 在 Type of Threads里。
对于 TEMA 螺栓, 有效螺栓面积是:
|
螺栓尺寸 |
螺栓根部面积 |
|
|---|---|---|
|
(in2) |
(cm2) |
|
|
0 |
0 |
0 |
|
0.500 |
0.126 |
0.8129 |
|
0.625 |
0.202 |
1.3032 |
|
0.750 |
0.302 |
1.9484 |
|
0.875 |
0.419 |
2.7032 |
|
1.000 |
0.551 |
3.5548 |
|
1.125 |
0.728 |
4.6968 |
|
1.250 |
0.929 |
5.9935 |
|
1.375 |
1.155 |
7.4516 |
|
1.500 |
1.405 |
9.0645 |
|
1.625 |
1.680 |
10.8387 |
|
1.750 |
1.980 |
12.7741 |
|
1.875 |
2.304 |
14.8645 |
|
2.000 |
2.652 |
17.1096 |
|
2.250 |
3.423 |
22.0838 |
|
2.500 |
4.292 |
27.6903 |
|
2.750 |
5.259 |
33.9290 |
|
3.000 |
6.324 |
40.7999 |
|
3.250 |
7.487 |
48.3031 |
|
3.500 |
8.749 |
56.4450 |
|
3.750 |
10.108 |
65.2130 |
|
4.000 |
11.566 |
74.6192 |
对于 UNC 螺栓, 有效的螺栓直径是:
|
螺栓尺寸 |
螺栓根部面积 |
|
|---|---|---|
|
(in2) |
(cm2) |
|
|
0 |
0 |
0 |
|
0.500 |
0.126 |
0.8129 |
|
0.625 |
0.202 |
1.3032 |
|
0.750 |
0.302 |
1.9484 |
|
0.875 |
0.419 |
2.7032 |
|
1.000 |
0.551 |
3.5548 |
|
1.125 |
0.693 |
4.4710 |
|
1.250 |
0.89 |
5.7419 |
|
1.375 |
1.054 |
6.8000 |
|
1.500 |
1.294 |
8.3484 |
|
1.625 |
1.535 |
9.9032 |
|
1.750 |
1.744 |
11.2516 |
|
1.875 |
2.041 |
13.1677 |
|
2.000 |
2.3 |
14.8387 |
|
2.250 |
3.021 |
19.4903 |
|
2.500 |
3.716 |
23.9741 |
|
2.750 |
4.619 |
29.7999 |
|
3.000 |
5.621 |
36.2644 |
|
3.250 |
6.721 |
43.3612 |
|
3.500 |
7.918 |
51.0838 |
|
3.750 |
9.214 |
59.4450 |
|
4.000 |
10.608 |
68.4386 |
该信息来自 Jawad and Farr, Structural Analysis and Design of Process Equipment, pg 425.