3 – A railroad is traversing parallel to a 20 ft high retaining wall as shown in the figure below. This railroad load can be considered a strip load and you are tasked to find the lateral pressure on the 20ft high wall due to this surcharge and the location (z) of that force. a) Calculate the total horizontal force per unit length (P)

A 5 m long cantilever concrete beam is supporting a uniformly distributed load of w= 4 kN/m and a 4 kNm counter-clockwise moment at point B as shown Figure 4. Assuming that E = 200 GPa and I= 50x10°mm": M kNm w kN/m B L/2 m - L/2 m Figure 4 a) Determine the slopes at points C O C= rad Please insert - sign if the slop indicates the counterclockwise. Submit part Unanswered b) Determine the maximum deflection at C yc = mm Please insert - sign if the deflection indicates the downward.

SITUATION. The cable of a suspension bridge shown in the figure below runs over a frictionless pulley on the top of each of the towers at A and B and is fixed to anchor blocks at D and E. The cable carries a uniform horizontally distributed load of w = 160 kN/m. The permissible working stress of the gross area of the cable, including voids, is 800 MPa. Unit weight of concrete is 23.4 kN/m³. For this problem, L= 400m, S = 40m, H = 60m, a = 45°. L H W(kN/m) F Anchor Zoom image Determine the required volume of the concrete anchor blocks in m³. 2600 2800 3000 2500 Anchor

The backfill behind the concrete retaining wall weighs 110 pcf and the angle of internal friction is 30 degrees. The live load surcharge on the surface of horizontal backfill is 200 psf. a. Determine the total active force acting on the wall per unit width.  b. Find the factor of safety against overturning.