Truss / Joist Hanger Lateral Loads
Truss / Joist Hanger Lateral Loads
(OP)
I am currently researching ESR reports for potential lateral load capabilities in truss / joist hangers.
I have a common situation where the common trusses are bearing into the side of a truss girder. This truss girder, while it interrupts my shear wall, "could" serve as a shear strut between two full height wall sections / segments.
I need to transfer lateral loads. Although the Simpson load tables do not offer lateral load values for truss and joist hangers (i.e. LUS28) i cannot believe that trusses aren't capable of providing "some" lateral design value.
I've contacted Simpson twice, unable to speak directly with engineering thus far. The last contact directed me to applicable ESR reports that i am currently researching.
Any thoughts?
Thank you!
I have a common situation where the common trusses are bearing into the side of a truss girder. This truss girder, while it interrupts my shear wall, "could" serve as a shear strut between two full height wall sections / segments.
I need to transfer lateral loads. Although the Simpson load tables do not offer lateral load values for truss and joist hangers (i.e. LUS28) i cannot believe that trusses aren't capable of providing "some" lateral design value.
I've contacted Simpson twice, unable to speak directly with engineering thus far. The last contact directed me to applicable ESR reports that i am currently researching.
Any thoughts?
Thank you!






RE: Truss / Joist Hanger Lateral Loads
Does the diaphragm shear being transferred not reside in the roof sheathing, making transfer to the girder relatively simple via nailing etc? Perhaps I'm misunderstanding the situation.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Truss / Joist Hanger Lateral Loads
Mike McCann, PE, SE (WA)
RE: Truss / Joist Hanger Lateral Loads
Koot... are you suggesting using nailing in addition to the hangers - perhaps, since the hangers may not have been designed to interactively support gravity and lateral loads? I've done similar things before. I'll consider it. Or please explain if i am misunderstanding...
msquared... the Girder Truss is a common triangle that will bear on top of the continuous top plates.
msquared... there is nothing between the trusses and the bearing surface. The trusses bear on top of the bearing surface which is the continuous wood top plates. Our typical practice is to have the Simpson H1 hurricane ties serve as the collector to transfer the diaphragm shear to the shear wall.
msquared... thank you for the suggestion, but, blocking is not an option since we've always been able to find an alternate safe route of transfer.
My initial inquiry... has anyone had any experience, success, other... in applying a lateral load through Simpson hangers?
Thank you both for your suggestions.
Any others?
Thank you!
RE: Truss / Joist Hanger Lateral Loads
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.