I went through the new Civil Construction sample exam booklet and I can't figure out why problem #116 multiplies a triagular area by 2/3rds. To clarify the problem is a gravity retaining wall where you are asked to calculate the FOS against Overturning.
Can anyone tell me why they multiply the value of the traingular section by 2/3rds? By doing so they are reducing the moment arm of that force to 2/3rds of half the base.
Thanks,
Can anyone tell me why they multiply the value of the traingular section by 2/3rds? By doing so they are reducing the moment arm of that force to 2/3rds of half the base.
Thanks,