F. K. Kong MA, MSc, PhD, CEng, FICE, FIStructE, R. H. Evans CBE, DSc, D ès Sc, DTech, PhD, CEng, FICE, FIMechE, FIStructE (auth.)-Reinforced and Prestressed Concrete-Springer US (1987)

300 Reinforced concrete slabs and yield-line analysis
Fig. 8.3-7(b)
Fig. 8.3-7(c)
(from Fig. 8.3-8(c) and eqn 8.3-7)
= m1 sin 2 {J + m2 cos 2 ({J - a)
(mu)rj = m 1 cos 2 (~ - y) + m2 cos 2 (y + a)
(from Fig. 8.3-8(d) and eqn 8.3-7)
= m 1 sin 2 y + m2 cos 2 (y + a)
This worked example demonstrates the usefulness of the concept of
moment axes.
·~·
m2
m,
I
te
m2
Y+a
(a) (b) (c) (d)
Fig. 8.3-8 Angles between yield line and moment axes
j