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Structural Concrete - Hassoun

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15.3 Torsional Stresses 527<br />

Table 15.1<br />

Torsion Diagrams<br />

At support M t = T<br />

For a circular<br />

section J = πR4<br />

2<br />

At support M t = m t L<br />

m t = uniform torque<br />

M t1 = M t2 = T 2<br />

M t1 = Tb<br />

L<br />

M t2 = Ta L<br />

M t1 = T 1 (b−c)+T 2 c<br />

L<br />

M t2 = T 2 c−T 2 a<br />

L<br />

M t3 = T 1 a−T 2 (a+b)<br />

L<br />

Note: When a = b = c =<br />

L∕β and T 1 = T2 = M t1 =<br />

M t3 = T ⋅ M t2 = 0<br />

(continued)

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