Test & Certificate

Certified by – Prof. Dr. P.K.ARAVINDAN,
(Former Prof. in Struct. Engg. IIT Madras),
Principal Consultant, SREE CONSULTANTS, Chennai – 600 042)

Design wind pressure = 1.654 kN/m2
From IS:875 Part(3), Cpe-Cpi=1.1
Design Pressure = 1.82 kN/m2

Section properties are checked and the results are:

  • Bending Stress in Mullion = δ =m = 33.95 ∠ 86 N/mm2 = Result – Safe

  • Check for axial load = 2.14 N/mm2∠85 N/mm2 = Result – Safe.

  • Checking for combined axial load and bending = 0.56∠1 = Result – Safe.

  • Check for deflection = Permissible deflection=7.20mm – Safe.

End Mullion

The proposed vertical mullion is 36 x 50mm having flange thickness of 2.0mm and web thickness of 2.0mm. The mullion is assumed to be hinged at both ends.

Section properties are checked and the results are:

  • Bending Stress in Mullion = δ =m = 45.93∠86 N/mm2 = Result – Safe. z

  • Check for axial load = 1.29 N/mm2∠85 N/mm2 = Result – Safe.

  • Checking for combined axial load and bending = 0.41∠1 = Result – Safe.

  • Check for deflection = Permissible deflection=7.20mm – Safe.

Design for Horizontal Mullion

Mullion of size 70x50mm having flange thickness of 2.0mm and web thickness of 2.0mm.

Section properties are checked and the results are:

  • Bending Stress in Mullion = δ =m = 23.97∠86 N/mm2 = Result – Safe. z

  • Check for axial load = 6.78 N/mm2∠86 N/mm2 = Result – Safe.

  • Checking for combined axial load and bending = 0.36∠1 = Result – Safe.

  • Check for deflection = Permissible deflection=4.8mm – Safe.
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