Standing Seam Roof as Diaphragm
Standing Seam Roof as Diaphragm
(OP)
Hey all,
Came across this ICC report when looking for info about SSR being used as a diaphragm. The allowable shear values are quite low, but there is some capacity, at least for VP SS.
Came across this ICC report when looking for info about SSR being used as a diaphragm. The allowable shear values are quite low, but there is some capacity, at least for VP SS.






RE: Standing Seam Roof as Diaphragm
RE: Standing Seam Roof as Diaphragm
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: Standing Seam Roof as Diaphragm
RE: Standing Seam Roof as Diaphragm
I guess I take two positions on this......
1. Based upon my experience, I would not rely on SSR for my diaphram capacity for a new building....where I can drive the structure to be whatever I want it to be.
2. If I am analyzing an existing building, where its already there and been there for awhile, I may would try and work with the structure that is there and take advantage of every existing element that exists, rather than just automatically discounting the capacity of any existing SSR.
RE: Standing Seam Roof as Diaphragm
RE: Standing Seam Roof as Diaphragm
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: Standing Seam Roof as Diaphragm
RE: Standing Seam Roof as Diaphragm
ep588: Load tests for metal clad wood framed buildings
EP484: diaphragm design of metal clad wood framed buildings
look up postframe.org
MAP
RE: Standing Seam Roof as Diaphragm
EIT
www.HowToEngineer.com
RE: Standing Seam Roof as Diaphragm
I would not put any stock in the capacity of a fastening system where it is designed for movement between parts to be used as a diaphragm. Definitely a no-no. Compound this with the need for it to be value priced and the SS roof installed is never the one specified. Nobody will check with the engineer about this to make sure it is OK to provide an alternate.
RE: Standing Seam Roof as Diaphragm