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We were approached by a piling contractor who had a pile load test of 60'000 kN. An initial design of six ground anchors and an assembly of built-up steel beams was studied for this purpose. The steel beams were placed in two tiers: one beam directly above the jack on top of the pile and two beams above in the perpendicular direction. The beams were connected at each end to the ground anchors.
Our structural value engineering shows that the beam sections weren't efficiently utilized. We rearranged the assembly to have all beams in the same level, thus achieving bracing to the compression flange of the beam over the jack and then we tapered the beams away from the center. This resulted in saving more than half the tonnage.
