old metal floor deck tables

[jloo73]

Doing some structural review of an existing steel building with castellated steel beam and concrete on metal deck.

I found that the steel beams are adequate for the new loading condition, however I am unable to find any information on the metal deck and suspect that it will not work for the new loading.

The deck is designated as NKX 16-16 alternated with SEC 21-16. This is all the information I have. Building was designed in 1964

I did find some info on corrugated deck with a flat steel pan that went by the designation 20-20. Does anyone know which number goes with which part of the deck and what company may have used this designation.

Thanks

 

[mrengineer]

NKX and SEC 21 are Robertson deck designations.

 

[jloo73]

Thanks mrengineer!

Robertson's website had old deck tables available. The manf. tip was very useful.

Thanks again.