determination of static structural capacity 9load rating0

huangyhg

determination of static structural capacity (load rating)
forum,
i have a mechanical engineering background but in my current position i have to wear many hats.  today's topper is structural engineer.  i have been asked to design an overhead structure  to suppor palletes of materials in one of our warehouse buildings.  it will consiste primarily of h-beams, c-channel, square tubing, handrails, grating, and toe-boards.  moreover, i will have to install a stairwell in order for an individual to access this area from ground level.  i have never done this type of calculation before (just graduated from school 05/01) and was wondering if there was any suggestion from the structural community.  
p.s. the concepts of column loading, buckling, and bending etc. are already understood but i am looking for a general or standardized quick method for making this determination.
my suggestion would be to hire a licensed structural engineer as a consultant and allow somebody with the proper experience to design it.  practicing outside of your area of expertise is a reckless practice that does not serve our profession.
sory ngner2b but  do you think you can do this?
here to take this license you need to spent 5 years in uni and then another3 at practise.
be careful..
here where i am from one mechanical eng. killed 4 men just 4 mounths ago........
in exactly the same situation. mean exactly.
sorry but frogit22 is right.
it is too dangerous.
i dont know what to think about your bosses!!!
of course they are allways right but...  
zmei