old bar joists

[duggerdoo]

I have to evaluate the floor capacity of an old building. they want to convert it into a dry storage facility. so knowing the floor capacity is necessary. the building floors are supported on bar joists that have round bar top and bottom chords...also the web member.

Im having a heck of a time finding capacity charts for these. ideas are welcome.
Doug

 

[sbisteel]

SJI tries to be helpful with situations like this, always worth reaching out to them:

https://steeljoist.org/find-existing-joists/