I checked, & it looks like the calculations used the ASSHTO LRFD specifications to determine the Required Deflection Limits, which the gangway does adhere to. Unfortunately, graybeach is right, this is more of a catwalk style gangway than an actual bridge of any sort. As such the ASSHTO Specs do...
Thanks guys, all good answers!
I do feel I need to clarify, we did originally figure the deflection to be MUCH smaller, about less than 1.5", and chose a proper channel section based upon that for a 54'-0" bridge length. Turns out they gave us the wrong length! But luckily we were able to add...
Hello Everyone,
My company recently designed and built a stainless Footbridge/gangway for the NY Department of Environmental Protection. We have Signed & Stamped calculations showing that over a 65' span the max deflection is 4.25". This was originally approved by the project engineer at the...
