Robertson Floor Deck Load Tables

[jhersh]

Anyone have load tables for 3" QL-99-16 deck and 3" WKX-20/18 deck?

I'm working on an existing building designed in 1975 and need to evaluate the floors for new loading. I found tables for some of the other deck types on other threads, but was not able to find the above two types.

 

[TLHS]

This has the WKX-20 it looks like. It has 3" QL-99-18, but doesn't appear to have 16 at 3", just at 2".

https://files.engineering.com/downl...d5d0d78f9&file=Robertson_Deck_Information.pdf

On the bottom of the second page are a couple of ICBO reports you can probably track down that might have more detail.

 

[jhersh]

Thanks, but I already have those tables from another thread and they don't have the exact deck I'm looking for. Looking specifically for the 3" QL-99-16 deck and WKX-20/18 deck. The pdf you mentioned has WKX-18/20, but I need the WKX-20/18.

 

[jayrod12]

Is it possible that it was written incorrectly on the original drawings in regards to the WKX-20/18?

 

[jhersh]

I was thinking that might be the case, but I know Vulcraft offers both 18/20 and 20/18 configurations of the cellular composite deck, so it's definitely possible that 20/18 as listed on the drawings is correct.

Also, the section properties of the deck listed on the drawings (see attached photo) for the 20/18 deck don't match those listed on the Robertson tables for the 18/20 deck. And comparing the values to newer vulcraft cellular composite tables, the section properties listed on the building drawings are definitely closer to Vulcraft's 20/18 cellular deck.

 

[jhersh]

Here's the floor slab schedule from the building drawings. The two highlighted types are the ones I still need info on.

 

[bones206]

At least you have the properties so you can calculate the load capacity per SDI.