Sloped light gauge rafters

[masterthenight]

I have a project with a tower that has a small, monoslope roof. The tower walls are CMU.

The project is mostly light gauge framing (read: no wood framing) so I am considering using light gauge rafters for the tower roof framing. The challenge I am looking at is the end bearing condition. I am not finding any resources on this type of connection. I was hoping Simpson made a light gauge variable pitch connector, similar to their wood offering, but I couldn't find one.

Any other ideas for this detail?

All input is greatly appreciated!

 

[BadgerPE]

Just use any Simpson clip that is needed to control uplift. However, depending on your loads, a stiffener may be needed at the end bearing to prevent web crippling. Also, blocking or heel strapping may be needed to transfer diaphragm forces into walls.

 

[Michel60]

How about a bent metal clip or angle with an upstanding leg?

regards,
Michel

 

[msquared48]

A lot of metal stud suppliers for residential applications have a lot of standard details in their cataloges. Should have one for your application.

Mike McCann
MMC Engineering

http://mmcengineering.tripod.com

 

[woodman88]

The CFSEI (Cold-Formed Steel Engineers Institute) has some basic details on framing you can look it.

Garth Dreger PE - AZ Phoenix area
As EOR's we should take the responsibility to design our structures to support the components we allow in our design per that industry standards.

 

[masterthenight]

Thanks guys, I will look into all your recommendations. Really appreciate it!