I'm working on a project using vertical and battered micropiles to support a bridge pier. The lateral load of the pier is designed to be taken by the batter of the piles. In the most recent design runs the worst case ratio is roughly 15 K load vs 70 K resistance factored using the horizontal component per battered micropile. The design program was set use 0% of vertical piles for lateral resistance. My question is: Will there be a bending moment on the battered piles? Do I need to check the bending stress capacity of the micropile itself? The max. axial load is around 115 K. The micropiles are 9 5/8" casing with a #20 bar (2.5" OD)
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