Time-dependent internal forces in uncracked structures: analysis by the force method - Concrete Structures: Stresses and Deformations - page 133

Table 4.2 Changes in axial strain and in curvature of the released structure during the period t 0 to t in Example 4.6

Calculation of restraining forces

Total Changes in axial strain

Section number Creep Shrinkage Relaxation restraining forces and in curvature

(see Fig. 4.10(b)) (Equation (2.42)) (Equation (2.43)) (Equation (2.44)) (Equation (2.41)) (Equation (2.40))

N M N M N M N M O

1 2.304 − 0.1541 1.702 0 − 0.219 0.0148 3.787 − 0.1393 − 455 74.6

2 2.304 − 0.1999 1.702 0 − 0.219 − 0.1607 3.787 − 0.3606 − 467 283.4

3 2.304 − 0.0718 1.702 0 − 0.219 0.0148 3.787 − 0.0570 − 455 25.3

4 2.304 − 0.1590 1.702 0 − 0.219 − 0.1607 3.787 − 0.3197 − 466 261.3

Multipliers 10 6 N10 6 N-m 10 6 N10 6 N-m 10 6 N10 6 N-m 10 6 N10 6 N-m 10 − 6 10 − 6 m − 1