Building Design Dead Loads
If i need to design a foundation for pedestrian overhead bridge, how to find structural loadg on foundation?
1 end of bridge is connected to an existing building, the other to the stairs. do i use live load + dead load multiply by area of bridge only? do i need to divide it by 2 so as to find the loading on the 4 piles?
im only considering the design of the pile foundation for the side not connected to existing building. im confused, pls help! thanks!
Ok the place to start for your loading criteria is BS5400, as each bridge use/type carries varying gamma,f safety value for all the differing load types.
Assuming the span is simply supported at both ends and the load is equally distributed;
Dead load = weight of stairs + 1/2 weight of bridge deck
Live Loading is applied over the plan area of the deck and stairs.
Remember that foundations are not assessed as ultimate limit state.
Hope thats helps I am unsure what you mean by ‘divide by 2 to find loading on 4 piles’?
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