Analysis and Design of Steel Plate Diaphragm

Stiffeners have to be designed in accordance with AASHTO, as columns.

I've never come across anything for end diaphragms (unless you're assuming it's a primary member as in a curved structure). I just place one or two wheel loads (depending on the stringer spacing), apply 30% impact, and design it as a simple span beam

Hi steveyeung,

If you are in an earthquake zone you will have to design these diaphragms and connections for the loading.

I have also used these end diphragms for future bearing replacement and thus design them for jacking loads.

Regards

VOD