Question 4 Develop a scriptcode to determine the Stress Dist

Question 4 Develop a script/code to determine the Stress Distribution against a vertical surface/retaining wall as shown in the following figure. Ho = 6.0 m, B-2.0 m, qs = 100 kN/m2 force/area) Ho 29 vs z, for the loaded area at Using a vertical interval dz = 0.2 m, plot the distribution of 1, 2 and 3 m from the face of the wall. (i) (ii Using a finite difference method determine the location of the maximum stress. i Using the trapezoidal rule, determine the magnitude of the total force on the wall. v) Determine the point of action of this force

Solution

I. Given dz=0.2m and sigma x=(2qs/3.14)(beta-sin beta cos 2 alpha).

So the distribution will be (2qs/0.628)(beta-sin beta cos 2 alpha.

Ii. Maximum stress will be in the midway of the wall that is at point 2.

Iii. Force=ma. Hence total force will be B(sin(alpha-beta)).

Iv. Point of the force will be at point 2.