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GATE 2019 CE (CE1) – Question 18

Steel Structures · Design of beams, beam-columns and column bases · 1 mark · Multiple choice

Assuming no possibility of web shear buckling, what maximum reduction in the low-shear design bending strength of a semi-compact steel section due to high shear is permitted by IS 800:2007?

  1. zero
  2. 25%
  3. 50%
  4. governed by flange area

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Show answer and explanation

Correct answer: (A) zero

Explanation

The semi-compact section’s bending resistance is based on the elastic section modulus. In the stipulated design provision,the high-shear plastic interaction reduction applies to plastic/compact cases rather than reducing this semi-compact elastic resistance. Hence the specified reduction is **zero,A**.