Sign & Digital Graphics

March '18

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72 • March 2018 • S I G N & D I G I T A L G R A P H I C S ARCHITECTURAL AND ENVIRONMENTAL • The 24' Option With this design, the same footing, pipe and construction is created and the support pipe is left at its full length of 24' above grade. (Image C) • The Expanding Option In this option, the sign is designed and engineered with the same pipe and foundation as the 24' tall option, except that the pipe is cut short for now, and added-to later when the EMC is installed. A Common Dilemma To Avoid You recall the many times you have been given a design request for extend- ing the height of an old existing pylon or monument sign. Of course, you know this is a big no-no as there is no documenta- tion on what is below the surface. How deep does the pipe and caisson go? How big is the caisson? How much wind load will it sustain? None of this information is available, and consequently, the exist- ing structure cannot be used. You realize that this could pose a similar problem if certain steps are not taken in advance, to let everybody know what steps have been taken for this future expansion. Image C: This image shows what the sign might look like without the large EMC base allowance. However, it can easily be raised and the base added when the EMC is ready to be purchased. What To Document and How What about the internal framework would need to be documented and with whom? Let's face it, it could be years before the church decides to add in its EMC. Things change, and options that were once mandatory can become noth- ing more than an idea that may no longer be necessary or desired. So, what exactly do you plan for? In this case, I would first design the sign with the EMC in place, as if it was the "phase two" part of the sign's expansion. You will use this full- size design to create the engineering files for this "phase one" sign. So, even though the sign may only be 12' tall, the founda- tion caissons, the pipe and the construc- tion of the internal structure of the sign will all be designed, engineered and built as if it were the 24' finished sign. Document The Foundation For Future Verification Remember one thing, you may not be with the company 10 years from now. The sales person, the fabricator and the installers may not be there either. There may be nobody left at the company who remembers that this sign has a "special" foundation and internal structure. Or, the files might all be accidentally lost due Image D: Here is just an example of what the sign might look like for attachment to the pipe inside of the cabinet. More information is good information. Give a lot of details so that it's clear what is below the ground. A quick illustra- tion is always worth a thousand words.

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