Equilibrium The FBD in Fig. (b) was drawn by isolating the portion of the post above section a-a, where Peo is the force in concrete and Pst denotes the total force carried by the steel rods. For equilibrium, we must have
Equilibrium The FBD in Fig. (b) was drawn by isolating the portion of the post above section a-a, where Peo is the force in concrete and Pst denotes the total force carried by the steel rods. For equilibrium, we must have