overhead travelling crane supporting system

huangyhg

overhead travelling crane supporting system
hi all !
i am required to design a supporting system for an overhead travelling crane of safe working load of 25 tonnes, clear span of 25m and a length of 50m. does anyone know any useful information on this ..
any help will be greatly appreciated
thanks
kien luu
please see my avwin98 posting and the austim2 reply; this could help you very much i thought.
pappa foxtrot
each manufacturer will give you his loads for the crane you need.
for example: from "crane handbook" by whiting corporation for crane 25 tons with 25m (80ft) between rails:
max weel load = 240 kna (54000 lbs)
trolley weight = 50 kna (11500 lbs)
total crane weight = 320 kna (70500 lbs)
weel spacing = 3.8 m (12.5 ft)
after you get info from crane manufacturer, you may use aisc design guide series no. 7 (pub. no. d807), which has very good chapters on crane runway girder design and column with crane load design.