1方钢 F = a2
3钢板、扁钢、带钢 F = aδ
4圆角扁钢 F = aδ-0.8584r2
pet打包带生产线
6六角钢 F = 0.866a2 = 2.598s2
7八角钢 F = 0.8284a2= 4.8284s2
8钢管 F = 3.1416δ (D-δ)
9等边角钢 F = d (2b-d) + 0.2146 (r2-2q2) 10不等边角钢 F = d (B+b-d) + 0.2146 (r2-
q2)
信息发布屏
11工字钢 F = hd+2t (b-d) + 0.8584 (r2-
q2)
12槽钢 F = hd+2t (b-d) + 0.4292 (r2-
q2)
代号说明
a—边宽
a—边宽,δ—厚度
a—边宽,δ—厚度,r—圆角半径
d—外径
a—对边距离,s—边宽
a—对边距离,s—边宽
D—外径;δ—壁厚
管式反应器
d—边厚,b—边宽,r—内面圆角半径,q—端边圆角半径
d—边厚,B—长边宽,b—短边宽,r—内面圆角半径,q—端边圆角半径h—高度,b—腿宽,d—腰厚,t—平均腿厚,r—内面圆角半径,q—端边圆角半径
h—高度,b—腿宽,d—腰厚,t—平均腿厚,r—内面圆角半径,q—端边圆角半径