How to Repair a Notched Beam

[Sam Grill]

How would you repair a notched beam, when the notch is a third from the end of the floor joists, and the joist is 2x8, the notch is about 3 1/2" long and 2 3/4" deep.

[Gunnar Alquist]

You mention a beam, but don't mention the size, just the size of the joists above. If the beam is compromised, replace the beam with a comparable member. If replacement is not practical, a repair should be designed by a licensed structural engineer.

[Jerry Peck]

You mention a beam, but don't mention the size,

Gunnar is correct, the beam size is what needs to be known as the beam is allowed to be notched, and is allowed to be notched up to the 1/3 point, and is allowed to be notched up to 1/3 the actual depth of the beam, meaning that ... it is possible ... that the notch may be allowed (depending on the size of the beam).

[Raymond Wand]

FYI
https://engineering.purdue.edu/~jliu/courses/CE479/extras/notching_IBC.pdf

[Jerry Peck]

Gunnar is correct, the beam size is what needs to be known as the beam is allowed to be notched, and is allowed to be notched up to the 1/3 point, and is allowed to be notched up to 1/3 the actual depth of the beam, meaning that ... it is possible ... that the notch may be allowed (depending on the size of the beam).

Yep, my apologies, "and is allowed to be notched up to 1/3 the actual depth of the beam" should have been:

"and is allowed to be notched up to 1/6 the actual depth of the beam"

Got carried away typing 1/3 ... 1/3 ... 1/3 ... me bad, need to be more careful next time - thank you Raymond.

I should have said that the notch could be 1/3 the depth for the max length of the notch, but the notch is only allowed to be 1/6 of the depth of the beam.

[Raymond Wand]

You are welcome Jerry, we are all here to help one another. I am just glad you did not hit the 6 key 3 times - 666. In which case you could have said the 'devil made me do it!' ;)

[Mike Kleisch]

Around here you are not allowed to touch any beam without structural analysis.

Just to muddy the waters a bit, but...

https://engineering.purdue.edu/~jliu...tching_IBC.pdf (https://engineering.purdue.edu/~jliu/courses/CE479/extras/notching_IBC.pdf)

In just reading the one page it seems these rules apply even (using sawn lumber) if there is a point load? Or, is there another page that addresses that issue and this page applies only to uniformly loaded beams?

Seems odd that if someone spec'd a beam size (sawn lumber) to carry a load, and you meet the code requirements for notching all is well. I think the designer might have some say depending how the beam is loaded and where the notch is located.

[Mike Lamb]

How would you repair a notched beam, when the notch is a third from the end of the floor joists, and the joist is 2x8, the notch is about 3 1/2" long and 2 3/4" deep.
Got any pictures, Sam? A wide shot or two, and a close-up.

[Matt Fellman]

Got any pictures, Sam? A wide shot or two, and a close-up.

Typical HI forum - a notched beam and a hot girl are mentioned and the first question is for pictures................... of the beam :)

[Phillip Norman]

Where a beam is split or is found notched, anything that is obvious improvement should be considered, for prompt action. Here is what I have done:
Energy Conservation How To: Strong Attic Floors (http://energyconservationhowto.blogspot.com/2012/11/strong-attic-floors.html)

[Garry Sorrells]

Too bad you are not an InterNachi Inspector Jerry as you would get to see a Hot chick do a presentation on Notches and Stairs at Nachi tv.:D



Seriously doubt even with "hot chick" there would be much to learn by Jerry.
Or is "chick" the purpose of watching for you and information is irrelevant, marketing demonstration?

Found the Stair Chick...

[Steve Frederickson]

Here's an option (assuming that the notch is not within the allowed limits): Metwood Joist Reinforcers | Floor Joist Repair | Metwood Store (http://metwoodstore.com/)

[BridgeMan]

I'm very curious--Is it now common practice for home inspectors to recommend how to make structural repairs? Seems like it could make for some potential problems, if/when the buyer proceeds to do "what the inspector told me to do," and the structure suffers a significant failure. Even if the failure occurs elsewhere (and unrelated to the repaired member), we all know the lawyers will name the home inspector who proposed specific repair methods (and his/her liability carrier) as defendants in the lawsuit.

It's been a few years since I've been out of the inspection business--Have most SOPs since changed to allow inspectors to make structural repair recommendations?

[Garry Sorrells]

Bridgeman,
It boils own to the inspector being considered competent by license or experience to offer direction on how to affect a repair. If you have standing to design and perform the repair then you have a standing to offer the recommendation for the repair.

[Jerry Peck]

You would be surprised how much info she packed in that little video.

Kevin,

Not being able to watch the video ... what did she say about that handrail on the wall? Curious as to what she addressed versus what is shown.

[Garry Sorrells]

.........I can't remember exactly what she says but it is bang on for education. ............


Sorry that seems at odds with good education.... Maybe it is your phraseology......:)

[Jerry Peck]

You can get access if you want by signing up as a student.
Being as I am always learning new things ... I guess I qualify as a "student", right? :)

I tried to register as a student but it wants me to also apply for membership, guess I am out of luck on watching the video ... unless Lisa can PM me access to it ... :confused:

[Jerry Peck]

Nick will give you access I almost guarantee it.

I will be back later today and will check my email for it, or even over the weekend is fine.

[Jerry Peck]

Jerry according to Nick all you need to do is sign up it is free for students not that you are just a student.
Free student membership. - InterNACHI (http://www.nachi.org/freestudent.htm)

Kevin,

That is the same link from last night - it starts off with "I am a..." and then gives an option to select "Non-Member (applying for membership)" or "InterNACHI Member (renewing membership)".

I am neither.

That is the problem. Maybe Nick can put up a "Guest" link? I promise to be a nice and tidy guest - I'll even vacuum my room and make the bed with clean linens when I leave. :)

[Jerry Peck]

I will see if they can set up a temporary pass for Veteran HI's.
I don't think he will open that up to the everyday public.

I will provide feed-back, good or bad, so he knows how he did on it (not that Nick did it, but Nick commissioned to have it done).