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Structural Concrete - Hassoun

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1018 Appendix C <strong>Structural</strong> Aids<br />

Table C.1<br />

(Continued)<br />

13. Three concentrated loads at one-fourth points:<br />

R A = R B = V A = V B = 3P 2<br />

M C = M E = 3PL<br />

8<br />

M D = PL<br />

2<br />

Δ max = 19PL3<br />

384EI<br />

(at midspan)<br />

14. Three concentrated loads as shown:<br />

R A = R B = V A = V B = 3P 2<br />

M C = M E = PL<br />

4<br />

M D = 5PL<br />

12<br />

Δ max = 53PL3<br />

1296EI<br />

(at midspan)<br />

15. Uniformly distributed load and variable end moments:<br />

W = total load = wL<br />

R A = V A = W 2 + M 1 − M 2<br />

L<br />

R B = V B = W 2 − M 1 − M 2<br />

L<br />

M 3 = WL<br />

8 − M 1 + M 2<br />

+ (M 1 − M 2 )2<br />

2 2WL<br />

at x = L 2 + M 1 − M 2<br />

W<br />

Δ x =<br />

Wx<br />

[ (<br />

x 3 − 2L + 4M 1<br />

24EIL<br />

W − 4M 2<br />

W<br />

)<br />

x 2 + 12M 1 L<br />

W<br />

x + L3 − 8M 1 L2<br />

W<br />

− 4M ]<br />

2 L2<br />

W<br />

(continued)

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