Integrity Reinforcement Load Requirement 2

[Yao1989]

This may be a dumb question.

I am using canadian code CSA A23.3-14. Our formula for structural integrity reinforcement simply asks for sum of steel area = 2 x Vse / fy. However, the definition of Vse says shear that is transmitted to column or column capital due to specified load, which gives me no clue whether to use SLS load or ULS load. Has anyone else run into this before?

Thank you!

 

[Yao1989]

Bump

 

[hardbutmild]

I have not used the canadian code before.
I assume you're talking about integrity reinforcement for punching shear?
If that is the case, I'd use ULS load since integrity reinforcement is meant to avoid progressive failure.

 

[Craig_H]

SLS Loads (I think the "S" in Vse stands for serviceability)

Page 26 of A23.3-14 defines Specified load as:
a load specified by the National Building Code of Canada without load factors

 

[jayrod12]

Specified load is SLS.

 

[rscassar]

Really, the equivalent equation in Australian Code AS3600-2018 Cl 9.2.2 says As.min=2*N.ult/(phi*fsy). Where N.ult is the column reaction from the floor slab at ultimate limit state. We also have the material reduction factor in the equation.