What Hanger to Use?

[XR250]

2.5k ASD demand., 10 deg. skew. I thought the beams stacked on top of each other but apparently not. Any way to justify a standard hanger (HU414) ? Can make get a red-iron one made if needed. Don't want to go the custom Simpson route.

 

[KootK]

Maybe a 614 accepting that you'll be nominally outside of Simpson's intended use case

If you have uplift, that complicates matters.

Could also put a thin, steel load distribution plate in a 614. But, then, you are back to something that the contractor doesn't have immediately at hand.

 

[XR250]

Well, HU414 ain't that far off. Maybe shave the side of the beam and add a bearing plate in the seat or don't even bother with the bearing seat? I can notch the bottom of the beam for the bearing plate if needed.

 

[KootK]

I'm sure that's fine too. Unlikely to cause a shear or bearing problem for the supported beam I'm sure Better than mine on uplift.

 

[XR250]

Ha, yea. They actually want to go with a fabbed hanger as they don't want to have to shave the LVL to fit. Whatever...
Thanks for your help.

 

[GaStruct]

You could notch the LVL, bevel cut it, and screw a ledger into the supporting beam. LVL will work in shear. It will be difficult getting 2.5K to work for the ledger connection.


I'll leave this here just in case ---> https://app.strongtie.com/hs

 

[XR250]

You could notch the LVL, bevel cut it, and screw a ledger into the supporting beam. LVL will work in shear. It will be difficult getting 2.5K to work for the ledger connection.


I'll leave this here just in case ---> https://app.strongtie.com/hs

There is the whole "hanging a load below the neutral axis" thing. I just emailed the Simpson Rep. on the timeframe for a custom skewed HU hanger. I'll try to convince the contractor to go that route as I do not feel like designing a hanger right now.

 

[GaStruct]

There is the whole "hanging a load below the neutral axis" thing.

I'm not convinced this really matters. Simpson hangers are often not the full beam depth.

Even so, you could notch a good chunk out of a (2) 14 LVL and still get it to work in shear for 2.5K. Potentially pushing the load application above the NA (or at least close).

I run into these skews every now and again and it would be nice not to special order hangers or design custom steel.

 

[jerseyshore]

There is the whole "hanging a load below the neutral axis" thing. I just emailed the Simpson Rep. on the timeframe for a custom skewed HU hanger. I'll try to convince the contractor to go that route as I do not feel like designing a hanger right now.

I've spec'd some skewed and some sloped (and sometimes both) Simpson hangers and heard no complaints. I have noticed more people just getting their favorite steel guy to fabricate custom connectors to match Simpson ones these days just because Simpson has been so slow. We spec a ton of CCQM around here and they are like gold if you can get them. Lot of guys just get them custom in a couple of days.

 

[ANE91]

I'm not convinced this really matters.

I’ve seen cross-grain bending failures irl. I’ll dig up pics today. It definitely matters; it’s just that the NA thing is only a rule of thumb. It can definitely still happen thereover.

 

[GaStruct]

Weyerhaeuser has a nice tech article affirming that you should not load below NA. Link

Something to consider going forward.

Given that most Simpson hangers are not full depth and have a lot of the fasters low on the hanger I have never given this much thought. The IRC also still allows ledger strips on girders.

 

[ANE91]

Behold. Unique set of circumstances, so don't take away from this that the hangers were the cause. They weren't. Can't go into more detail than that.

 

[XR250]

Looks like someone notched the crap out of the beam

 

[Greenalleycat]

That is a fun picture, thanks for sharing