Column vs shear wall

[drasticxxxx]

Hi Guys

We choose between columns and shear walls based on the design of resisting lateral load system,but is there any dimension that distinguish between the two of them)according to aci318),
I heard from my friend in work that when the length over width is more than 4 (then you can take it as shear wall),but to me I don't buy this, I believe i can take column as shear wall although W=L if i decide it should resit shear wall(part of shear wall resisting system for earthquake)?

So what is Right??

 

[PicoStruc]

Does a column have concetrated and distributed reinforcement ?

Not sure I follow what is the problem here ?

 

[PSEPK]

According to ACI 318-14 Section 2.3, a shear wall is a vertical element with a 'horizontal length-to-thickness ratio greater than 3.

A good structural engineer is often a blessing for others.

 

[drasticxxxx]

Thanks