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The design compressive stress of compression member in IS 800 is given by

(a) Rankine Formula

(b) Euler Formula

(c) Perry-Robertson formula

(d) Secant-Rankine formula

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Right answer is (c) Perry-Robertson formula

Explanation: The design compressive stress of axially loaded compression member in IS 800 is given by Perry-Robertson formula. IS 800:2007 proposes multiple columns curves in nin-dimensional form based on Perry-Robertson approach.

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