Retrofit of 50ft Tall Sign
Retrofit of 50ft Tall Sign
(OP)
We have a client who is changing an existing sign. Problem is with the new wind loads the cantilevered (single pole) 24" pipe no longer works. Is there a way to strengthen it? Thinking about looking into solid grouting the core, just dont know if thats standard practice, do's vs don'ts.. Thanks






RE: Retrofit of 50ft Tall Sign
No longer works how? Is the pole too weak? Is it buried too shallow? Is it encased? Can it be replaced? Can you reduce the sign area? Can you weld stiffeners to the pole ? Can you provide sketch with dimensions, materials, and design wind speeds ? Can you add to the number if poles?
RE: Retrofit of 50ft Tall Sign
RE: Retrofit of 50ft Tall Sign
RE: Retrofit of 50ft Tall Sign
Mike McCann
MMC Engineering
RE: Retrofit of 50ft Tall Sign
back to the basics. when something doesn't work, review the load, review the material strength, review the support conditions.
RE: Retrofit of 50ft Tall Sign
Discuss problem with the Owner. The expense of strengthening the sign might convince him to reduce the size of the sign to bring it into compliance.
RE: Retrofit of 50ft Tall Sign
I already got all the info, the actual thickness of the pipe, etc...
RE: Retrofit of 50ft Tall Sign
How about longitudinally splitting a new HSS round section and installing it around the original column with groove welded seams. A plate at top and bottom can be used to connect the new sign at top as well as anchor into top of concrete footing at bottom. Might need gussets at base.
RE: Retrofit of 50ft Tall Sign
Connection is the hard bit.
RE: Retrofit of 50ft Tall Sign
Neilly Davies Consulting Engineers http://www.neillydavies.com.au