What is the allowable design stresses for sheet piling?
Accepted engineering practice is to design to 0.65 Fy in longitudinal bending. This would apply to “Z-profiles” and “U-profiles”. Based on research in recent years it is becoming more apparent that in addition to longitudinal stresses, transverse stresses should also be considered. When designing cellular structures, accepted engineering practice is to limit the interlock load on the “flat sheet piling” sections to one-half the minimum ultimate interlock strength.
