Question

Which one of the following is not a factor considered for calculating the net effective area of a tension member?

1. Ductility factor
2. Geometry factor
3. Shear lag factor
4. Buckling factor

Answer 1

Correct Answer - Option 4 : Buckling factor

Explanation

A connection almost always weakens the member affecting its efficiency. The net area determined for plates and flats and the other sections is, therefore, modified to account for factors such as ductility of the material, method of fabrication, the geometry factor, and the shear lag effect that influence the effectiveness of the member.

All these factors reduce the effectiveness of the member, but the shear lag is the most important. The modified net area is called effective net area and may be defined by the following equation.

A_net = k₁ k₂ k₃ k₄ A_n

Where

k₁ is the ductility factor,

k₂ is the hole forming factor,

k₃ is the geometry factor,

k₄ is the shear lag factor and A_n is the net area of the section.

So buckling factor is not a factor considered for calculating the net effective area of a tension member.