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BEAM FORMULAS 43
W = (n + 1)P
nP P
yL
W = P –
xL
– – n
X = 0 x = y
1 + n
G 2 = 0 2 n 2
S 3 = 0 G = (1 + n) 2 y
3
S = n(n – 1) 3 y 3
(1 + n)
Case 1 Case 2
W = wyL
yL wyL –
–
xL W = 2 xL
w w
yL
– 1
x = y
2 – x = 1 y
2
G = 1 y 2 3 1
2
12 G = y 2
3
S = 0 18 1 3
3
S = – y
135
Case 3 Case 4
FIGURE 2.8 Characteristics of loadings.
