Top Chord Size - Long Span Joist

[cgstrucg]

Hello All,

Does anyone have any information/chard related to chord dimensions for long-span joists? We have a bunch of joists in a structure in New York and the joist we have in 3-D model shows top chord widths as 5" max. Our joists are over 40' in length and I think top chord angles size bumps us to min. 3" in that case and hence the total width of top chord increases. I was not able to find this information easily online and hence any help would be really appreciated.

Thanks

 

[BAretired]

Could be a GWS (Great West Steel Industries) joist (no longer in business).
See their chord sizes below. There were other fabricators who used a "hat" section similar to the one used by GWS.



BA

 

[cgstrucg]

Thank You, BA for that table but we have double angles as chords and it looks that a hat has a lower width compared to them.