| ¤è(¶ê¨¤)Square
(with R) |
F = a2 - 0.85864r2 |
a - Ãä¼e¡Fr - ¶ê¨¤¥b®| |
| ±a§÷¡BªO§÷Strip/Sheet |
F = a¡Ñ£_ |
a - Ãä¼e¡F£_ - «p«× |
| «óFlat Bar |
F = a£_- 0.8584r2 |
a - Ãä¼e¡F£_ - «p«×¡Fr - ¶ê¨¤¥b®| |
| ¶êRound Bar/Wire |
F = 7854d2 |
d - ¥~®| |
| ¤»¨¤Hexagon |
F = 0.866a2 = 2.598s2 |
a - ¹ïÃä¶ZÂ÷¡Fs - Ãä¼e |
| ¤K¨¤Octagon
|
F = 0.8284a2 = 4.284s2 |
| ºÞPipe |
F = 2.1416£_(D - £_) |
D - ¥~®|¡F£_ - ¾À«p |
| µ¥Ã䨤§÷Angle
Bar (equal sides) |
F = d(2b - d)
+ 0.2146(r2 - 2 ) |
b - Ãä¼e¡F d - Ãä«p¡Fr - ¤º±¶ê¨¤¥b®|¡Fr1
- ºÝÃä¶ê¨¤¥b®| |
| ¤£µ¥Ã䨤§÷Angle
Bar |
F = d (B + b - d)
+ 0.2146(r2 - 2 ) |
B - ªøÃä¼e¡Fb - µuÃä¼e¡F d - Ãä«p¡Fr - ¤º±¶ê¨¤¥b®|¡Fr1
- ºÝÃä¶ê¨¤¥b®| |
| ¤u¦rH-shaped
Bar |
F = hd + 2t(b - d)
+ 0.8584(r2 - ) |
b - »L¼e¡Fd - ¸y«p¡F h - °ª«×¡F
r - ¤º±¶ê¨¤¥b®|¡F
r1 - ºÝÃä¶ê¨¤¥b®|¡F
t - ¥§¡»L«p |
| ¼ÑShaped Pipe |
F = hd + t(b - d)
+ 0.4929(r2 - ) |