Test & Certificates
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.
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.
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.
