would anyone mind helping me understand what is meant in the code in 506.3 when it says there is a 200% (Is = 2) increase “for buildings with MORE THAN ONE STORY ABOVE GRADE PLANE” and 300% increase for “buildings WITH NO MORE THAN ONE STORY ABOVE GRADE PLANE”?
i have the 2015 commentary but it is too hard to try to use this since it has changed so much from 2012.
the language is a little convoluted by also i worked overseas and this definition of “story” trips me up since they handle this differently (not even going to try to explain since am so confused at the moment). i do understand i use the value (2 or 3) to plug into equation 5-2 - - i am just not sure which value i use on what sized/“story” buildings.
ALSO, i think someone was kind enough to allude to this on another thread i have here somewhere. BUT - once you run your Tabular Floor Area Increases using Equation 5-1 (with Is and If) you now have a NEW Tabular Floor Area Value which is larger but you have the (assume for a moment) SAME number of stories. so, if this was Type IIIA, 5 stories and 37,500 sf per story - maybe the floor area increase gets you to 50,000 sf per story.
at this point was the total allowable square footage (not a number with a variable or even apparently treated in chapter 5 2012?) - is it still the 5 stories x 37,500 sf per story? or does it increase to 5 stories x 50,000 sf per story i guess?
and then when you factor in 504.2 which gives you an additional story (you get this in ALL cases i guess irrespective of original number of stories) - you are increasing the number of allowable stories but you are restricted to the original allowable area PER floor (as a max per floor?) and you are restricted to the original TOTAL “allowable area” (in this case 50,000 sf x 5 stories).
do those make sense and if so would anyone mind stitching them up for me?
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