At Slabs - Pinwheel Joints verses Diamond.

[theoryshaw]

Hi @andyeck1,

I'm assuming it's okay, but wanted to verify with you nonetheless.

@smilliecraig would like to use a pinwheel approach for the slab's construction joints around the columns verses the diamond pattern that was specified.

ping @kraut34

[andyeck1]

Please clarify how the pinwheel joints would look like. The control joints are usually orthogonal with the column lines. How would the pinwheel joints come off the column?

[theoryshaw]

Yes, something similar to this: http://www.lmcc.com/concrete_news/0810/Pinwheel-joint-techniques.asp

[andyeck1]

The pinwheel joints are structurally acceptable.

[theoryshaw]

Thanks Andy