Active earth pressure per meter length on the retaining wall with a smooth vertical back as shown in the figure will be SAND Y = 2t/m3 O = 30° H= 9 m a) 81t C) 2t (b) 27t (d) 1t
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- arjumo Но |ha PA r Figure 1 calculaisb ... oil d water A vertical rectangular plate is submerged half in oil (SG = 0.83) and half in water as shown. Determine the ratio of force exerted by water to that of oil. A 3.25 B) 3.21 C) No answer among the choices D) 3.29 E) 3.16For the R. Wall shown below, Draw the pressure diagram on the wall in an active pressure condition, and find the resultant Force on the wall and its location. The surcharge q = 2400 lb/ft? q = 2500 Ib/ft? w.t. c = 0 Y - 115 pef 10 H = 20° þ = 30° Y = 125 pef 10 o = 40o
- Investigate the resistance of the wall, whose dimensions and floor properties are given in the figure, against overturning and sliding, based on the 1.5 safety factor. Note1: Evaluate as Pp-0. Note2: Take the kive k coefficients as 2/3. |g=150 kN/m² c=0, 0-30° Vosted 24 kN/m³ X=18 kN/m³ 6 1m 1m 0.5m 3mSITUATION 11 The system below is consisting of two solid circular cross-section bars AB and BC, joined as shown, and attached to a rigid vertical wall at the left. The system is subject to a concentric axial tensile force of 250 kN at C, together with an axisymmetric ring-type load applied at B having a horizontal resultant of 900 kN. For AB, E=110 GPa, and for BC, E-200 GPa. 500 1200 900 250 1. Determine the maximum stress on member AB. 2. Determine the deformation of member AB. 3. Determine the overall deformation of the system.A 40m steel tape is suspended in the air between a theodolite and vertical rod, which is placed exactly at the 40m mark, under a pull of 12.5kg. The slope of the measured line is 2-degree 40minutes. The tape weighs 1kg, standard pull of 8.5kg, cross-sectional area of 0.039cm^2 and E= 2x106 kg/cm^2. Determine the correction for sag of the tape in meter. Determine the horizontal distance between the theodolite and rod in meters. (Apply 5-decimal places - for letter B only) What additional pull must be applied to eliminate the effect of sag?
- -2 ft 10 kip 4 in. B B 1.5 ft-- 4 in. 6 in. ● 4 kip 0.5 ft 2 ft- - Change the magnitude of 10 kip to 7.9 kip - Change the outer width of the cross section from 6 in to 8 in - Keep the wall thickness 1 in (example, instead of 4 inches, the inner width of the cross section is equal to the outer width minus 2 inches). - Determine the maximum in-plane shear stress in the box beam at point A. Show the results on an element located at this point - Determine the principal stresses in the box beam at point B. Show the results on an element located at this pointAsapConsider the retaming wall shown m the ligure below Calculate the Rankine passive force per unit length of the wall and the location of the line of action of that resultant at which it acts on the retaming wall. 15.72KN/m3 1=30 C1=0 WT sat%3D15.72KN/m3 112=26 C1=10KN/m2
- Determine the stability of the wall in different conditions mentioned down in table and provide a spreadsheet utility program to obtain factor of safety against bearing capacity failure. Но a (°) B (C) ра (kN/m?) Ø (^) 8 (°) (m) 5.0 20 100 1600 36 24 5.5 6.0 6.5 20 100 1600 36 26 1650 1650 20 100 38 28 20 100 38 30 Ho Dry Sand Pa ha PA Gravity wallPROBLEM 2:A triangular gate having dimensions shown is hinged at its top at A. The gate rests on a frictionless surface at B. 4m seawater (SG=1.031) 60° 2m BA a. Determine the hydrostatic force acting on the gate. * Your answer b. At what distance from the centroid of the panel is the hydrostatic force acting? * Your answer IMI 21Consider the retaming wall shown in the Figure below Calculate the Rankine passive force per unit length of the wall and the location of the line of action of that resultant at which it acts on the retaming wall. 15.72KN/m3 1-30 C1=0 WT "sat= 15.72KN/m3 42-26 C1-10KN/m2 E 1. 2 m