Strut-and-tie modeling - Computational Analysis and Design of Bridge Structures - page 415

(a)

#6 stirrup spacing

6′′ 1′ 8′′ 4 @ 1′ 2′′ 1′ 4′′ 4 @ 1′ 2′′ 1′ 4′′ 4 @ 1′ 2′′ 1′ 4′′ 4 @ 1′ 2′′ 1′ 4′′ 4 @ 1′ 2′′ 1′ 8′′ 6′′

(b) Abutment-reinforcing detail

Truss member stress limits and effective widths

Stress ratios

(c)
Figure 13.11 (a) Abutment under construction. (b) Abutment reinforcing detail. (c) Case
study 1—Truss model and results using CAST program.

those parts of a structure within a distance equal to the beam depth of the
member from the concentrated force (load or reaction).

13.3.1 General properties
D-region thickness = 914.4 mm (36″).
Concrete cylinder strength = 4000 psi (27.58 MPa)
Nonprestressed reinforcement yield strength = 60,000 psi (413.69 MPa)