角焊缝喉深面积的计算公式

焊缝设计	角焊缝的喉深面积 A [mm ², in ²]
焊缝设计	适用于全部焊缝长度	适用于承受（有效）载荷的焊缝长度
	A = a L	A = a (L - 2 a)
	A = a (H + B)	A = a (H + B - 2 a)
	A = a 2 H	A = a 2 (H - 2 a)
	A = a 2 B	A = a 2 (B - 2 a)
	A = a (H + 2 B)	A = a (H + 2 B - 2 a)
	A = a (2 H + B)	A = a (2 H + B - 2 a)
	A = a 2 (H + B)	-
	A = 2 π a (r + a / 2)	-
	A = a 2 L	A= a 2 (L - 2 a)
	A = a (2 H + B)，A = a (2 H + B - 2 t)	A = a (2 H + B - 6 a)，A = a (2 H + B - 2 t - 6 a)
	A = a 2 (H + B)	-
	A = a 2 (H + B)，A = a 2 (H + B - 2 t)	A = a 2 (H + B - 4 a)，A = a 2 (H + B - 2 t - 4 a)
	A = a 2 (H + 2 B)，A = a 2 (H +2 B - s)	-
	A = a 2 (H + B)，A = a 2 (H + B - 2 t)	A = a 2 (H + B - 4 a)，A = a 2 (H + B - 2 t - 4 a)
	A = a 2 (2 H + B)，A = a 2 (2 H + B - s)	-

所用变量的含义：

a	角焊缝高度 [mm, in]
B	焊缝组宽度 [mm, in]
H	焊缝组高度 [mm, in]
L	焊缝长度 [mm, in]
r	焊缝半径 [mm, in]
s	腹板厚度 [mm, in]
t	凸缘厚度 [mm, in]