Footing Design for base (ground) mounted sign
Footing Design for base (ground) mounted sign
(OP)
My local church is installing a 5'x8' internally illuminated sign to be mounted on the ground in a masonry casing with a poured concrete footer. My question is... for windload considerations, what are the calculations needed to determine correct footing size? I have searched the treads and researched many projects about POLE mounted signs and understand the application of them, but I cannot find anything on base mounted signage. Can someone point me in the right direction?





RE: Footing Design for base (ground) mounted sign
But you will still need soil parameters in order to design the foundation...
Please see FAQ731-376 for great suggestions on how to make the best use of Eng-Tips Fora.
RE: Footing Design for base (ground) mounted sign
Focht3 is correct the loads are the same as for a sign with a pole, it is just the way those loads get to the ground that is different. It may help to think of the sign as a retaining wall, with the load source being wind instead of soil.
All of the stability checks that would generally be done for a retaining wall should be checked for the sign, however, since the horizontal dead load is zero, the factors of safety for those conditions could be lower than that required by a retaining wall.
RE: Footing Design for base (ground) mounted sign
http://www.iccsafe.org/e/prodlist.html?stateInfo=adPBzj...