I've got an existing building, roof slope 9.5/12 in which the existing rafters are toe nailed into the attic floor decking, and possibly the joist below (I haven't been in the space to verify, though I will ASAP). Due to loading changes I'm planning to sister the joists, and I wonder, anyone have a recommendation for a better connection to resist the outward thrust? There is no ridge beam or ridge board, the rafters simple meet directly at each other and I can't see any connection other than bearing. Any suggestions on how to connect these as well? I'm thinking some kind of light gauge clips/straps in both cases, I don't see anything specific in Simpson that will work. Since the slop is fairly steep, the kickout thrust shouldn't be too high.
Thanks for any assistance,
M.S. Structural Engineering
Licensed Structural Engineer and Licensed Professional Engineer (Illinois)
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
Additive manufacturing, also known as 3D printing, is quickly becoming an industry standard for product manufacturing in a variety of applications, including medical devices, aviation and aeronautics parts, and transportation components. Download Now
The growing complexity of automotive systems is putting a large amount of pressure on their designers. Industry constantly pushes to add new features for comfort, entertainment, and safety, requiring a single vehicle to use an increasing number of communicating electronic devices. Download Now
Fly by wire, remotely distributed control, remote and automated piloting, and augmented reality are a few evolutionary achievements in flight control and guidance that further remove the potential of human error in flight control systems. Download Now