Time-dependent internal forces in uncracked structures: analysis by the force method - Concrete Structures: Stresses and Deformations - page 114

Figure 4.4 Bending moment developed by creep in precast simple beams made
continuous by casting joints (Example 4.3): (a) three simple beams made
continuous at age t 0 by a cast in situ joint; (b) typical prestress tendon
profile for all beams; (c) loads and diagram of the bending moments
introduced at age t 0 ; (d) statically determinate released structure and
coordinate system; (e) forces and bending moment due to prestress loss
in one span of released structure; (f) statically indeterminate bending
moments; (g) bending moment diagram at time t .