Displacements of cracked members - Concrete Structures: Stresses and Deformations - page 286

Figure 8.8 Curvature in a reinforced concrete beam (Example 8.4): (a) span, load and
cross-section dimensions; (b) curvature at time t 0 ; (c) curvature at time t .

The interpolation coe cient for instantaneous curvature (Equation

(8.41) ) is

58.3
136

2

ζ = 1 − 1.0 × 1.0' = 0.82.

The interpolation coe cient for long-term curvature (Equation (8.41) ) is