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CSA Codes - Definition of fc´and dv

CSA Codes - Definition of fc´and dv

CSA Codes - Definition of fc´and dv

Hey guys,
I´m currently working on my Master Thesis about shear design with the canadian standard (CSA S6:19 or A23.3:19). I have already read a lot of literature and other background reports on the Canadian standard, but unfourtunatly I have some problems where I cant find any solution. Therefore i would like to try it this way and already say thank you in advance!

1. Question:
I´m trying to figure out what the definiton of the concrete strength in Canada is? (according CSA A23.2)

I have already researched the following informations (according CSA S6:19):
- fcm = fc´+ 8Mpa (with fcm.. avarrage concrete compressive strength)
- fc´... specified strength of concrete --> 28-day compressive strength

So my final question is: What is the exact strength definiton of fc´?
Is it an cylinder strength? And what are the dimensions of the cylinder or cube?

In Germany we use the 5%-quantile value for the specified strength and a cylinder with dimenisons of height= 300mm and diameter= 150mm

2. Question:
Is there any equation for the calculation of the effective shear depth dv or effective depth d under consideration of a tendon and reinforcing bars?
is that equation correct: d= (ds*As*Es+dp*Ap*Ep)/(As*Es+Ap*Ep)
with ds...effective depth for reinfrocing bars
dp...effective depth for tendon

Thanks a lot!
Best regards from Germany

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