32X50 on slab with hip roof. Exterior walls are leaning out on all corners, Steel beam spans open center with vertical support to each end of ridge 2' oc no sag with rafters or ridge. Slab appears flat and straight. Doors and walls lean out on both ends (50') but not width (32') no cracks that I can see in beams. Well over code, 12X26 w 6 5/8 rebar. The load bearing I beam is heavy. Any ideas?.