hinge loading

[ammar2000]

i am trying to solve design problem but not able to solve it hope someone can do

I have a circular platform that is supported above ground by hinges at four locations the distance from hinge to hinge is 2m. please see attached drawing which is top view of platform

platform weight= 1000 kg
platform diameter= 10 m

I need to find the loading exerted on the hinge to calculate the safe dimension of the pin.

appreciate all inputs