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Usage of STAR section

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Dear all,


Sub : Usage Of STAR Section In Steel Structures

 

This is regarding usage of STAR section in Steel Structures.

 

For forming the STAR section four equal angle / two equal angle (placed perpendicular to each other ) may be used. By using the STAR shape same moment of inertia may be achieved in both the direction across the cross section.

 

However, in my opinion, use of the same may be avoided as STAR sections ( thin wall open sections) may undergo torsion mode of buckling under the effect of pure axial compressive load.

 

Kindly, send your comments regarding usage of the STAR section.

 

 

Regards,

 

Bhavin Shah