PSA 7.6 — Spring Arrangements: Hung, Seated, From Below, Trapeze — the Unit Is Not the Support
Same 12″ hot-oil line as Lesson 7.1. The selection is finished and it is correct:
W_h = 12.0 kN δ = 40 mm UP k = 70 N/mm W_c = 12.0 + 0.070 × 40 = 14.8 kN V = 70 × 40 / 12 000 = 0.2333 = 23.3 % ≤ 25 % ACCEPT The datasheet goes out as a suspended variable hanger . Two weeks later the construction query comes back: there is no steel above this line. It is on the top tier of the rack. The nearest member above is a walkway handrail post, which is…
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