Moment Envelope for LH Joists
Moment Envelope for LH Joists
(OP)
I have an old LH Joist from the 1960s that I need to try and see if it matches some new loading conditions. I would like to check the moment envelope, but the 75 year joist manual doesn't seem to have any moment information for this kind of joist.
Does anyone have any suggestions, or know if I'm just missing something in the 75 year old joist manual?
Thanks
Does anyone have any suggestions, or know if I'm just missing something in the 75 year old joist manual?
Thanks






RE: Moment Envelope for LH Joists
If data is not avaliable in the 75 year SJI book, it may be one of those that was not fabricated to SJI standards such as was fabricated by Macomber.
You may also try to contact SJI and give them all the data and they might be able to guide you.
RE: Moment Envelope for LH Joists
Unfortunately, there is not enough budget in the job to go out and field measure and model the joist to get that kind of information.
Thank you for the response!
RE: Moment Envelope for LH Joists
Another option to reinforcing the existing joist would be to add a new joist alongside. I would often use a joist field spliced at the mid-span to make it easy to erect in an existing building.
Good Luck!