Structure analysts for bending moment
Structure analysts for bending moment
(OP)
Recently I want to calculate the base moment of one barrier. But I have some doubt find out the bending moment at the fix end for 1kN/m2 infill load. The object is standing 10 meter high with the length of 8 meter. Kindly assist for this simple structure analysts. Attached the sketch.
Many thanks.
Many thanks.






RE: Structure analysts for bending moment
Back to basics. Turn the area load into a point load at the midpoint of the load. Solve for the moment.
When I am working on a problem, I never think about beauty but when I have finished, if the solution is not beautiful, I know it is wrong.
-R. Buckminster Fuller
RE: Structure analysts for bending moment
Mike McCann, PE, SE (WA)
RE: Structure analysts for bending moment
RE: Structure analysts for bending moment
BA
RE: Structure analysts for bending moment
RE: Structure analysts for bending moment
Mike McCann, PE, SE (WA)
RE: Structure analysts for bending moment
RE: Structure analysts for bending moment
You can design the wall for the full 8 metres width using A, or a 1 metre wide strip using B, and get almost exactly the same answer.
When the footing is included using the metre width (with the moment adjusted for the increased lever arm) would be slightly conservative, because it doesn't take account of the additional distribution width.
Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/
RE: Structure analysts for bending moment
However, if I'm understanding the description correctly, this is basically a retaining wall, yes? If so, you wouldn't have a constant 1kN/m2 load over the whole face, you'd have a linearly varying pressure from 0kN/m2 at the top to X at the bottom, where X = (material density in kN/m3) * 10m. This will also change your moment calculation. But if X happens to be 1kN/m2, then your approach is conservative.
RE: Structure analysts for bending moment
BA