ASCE 7-10 Third Printing- Section 2.4.3
ASCE 7-10 Third Printing- Section 2.4.3
(OP)
I am designing a platform, on top of a building, to hold equipment and a walk way for people to work on the equipment. Section 2.4.3 of ASCE 7-10 says I use load combination D+L+.7Di. Do I really need to design my platform to hold my live load of 40 psf and ice weight, at td=2.23". I just find it hard to believe that if there is that much ice on my platform, people will go up there to work on the platform. Just wanted a second opinion, on if I was reading the code right.






RE: ASCE 7-10 Third Printing- Section 2.4.3
Plus, how much different does that really make to the cost of your structure?
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/
RE: ASCE 7-10 Third Printing- Section 2.4.3
RE: ASCE 7-10 Third Printing- Section 2.4.3
I thought about classifying it as roof live load, but I cant justify it being a roof live load.
Thank you all for your responses.
RE: ASCE 7-10 Third Printing- Section 2.4.3
If it's deflection, I'd be fine with a very large deflection with both ice and live load. I can't imagine you'd have much damage caused by a platform deflecting substantially.
RE: ASCE 7-10 Third Printing- Section 2.4.3
RE: ASCE 7-10 Third Printing- Section 2.4.3
Juston Fluckey, SE, PE, AWS CWI
Engineering Consultant