Plot the vertical effective stress, the active Rankine lateral effective stress, the water pressure, and total pressuresacting on the wall in the figure below. Also calculate the equivalent soil pressure, equivalent water pressure, and totalequivalent pressure on the back of the wall and the location at which they act.Soil 1Wall1.5 my=19 kN/m³ = 30°Soil 23 my-20 kN/m³-35°Soil 34 m2.5 my=21 kN/m³= 38°

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Answered: Plot the vertical effective stress, the…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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3- Due to application of line loads q1 and q2, the vertical stress increase at point A is 42 lb/ft?. Determine the magnitude of q2 q.=292 Ib/ft 92 45° 4.5 ft 3 ft 3 ft A
You are working for a consulting firm that has been asked to evaluate the factor of safety of the wall shown in the figure supported by a well-degraded sand. The resultant load behind the concrete wall acts at the one third point. Dw 1m 1.5 m 24 kN/m³ y = 20 kN/m³ 26.5 kN/m 24° = 34° n = 0.4 3 m (a) Determine the factor of safety if Dw − D > 1.5B. Ignore the lateral passive resistance due to the soil in front of the wall. (b) Determine the factor of safety if the ground water table rises to 0.5 m below the base of the wall. Discuss the significance of your observations.
Q.2 The thin-walled section is shown in figure has uniform wall thickness of 0.5 in. Assume a = 1 in, b = 3 in, h = 8 in. if it is subjected to vertical downward shear force, V = 1200 lb. a) Draw the shear flow diagram for the cross section. b) Compute the distance e from the center line of the wall to the shear center S.
Determine the average stress increase below the center of the loaded area, between z = 3 m and z = 5 m. 5 m 3 m q=100 kN/m² L 1.5 m 1.5 m A J SECTION 3 m B L A 3 m PLAN VIEW
A tank of total height 5 m is filled with sand of thickness 3.5 m having void ratio and specific gravity of 0.65 and 2.78, respectively. Remaining portion of tank is filled with water. The pressure head at the bottom of tank is 7.2 m. Assume unit weight of water is 10 kN/m³. The effective stress at a point 3 m below the top of the tank is kPa. (Round off to two decimal places).
Q: Find total stress (o), pore-water pressure (u) and effective stress (o') at B for the following cases: (a) Total heads at A and B are 15 cm and 15 cm respectively. (b) Total heads at A and B are 15 cm and 18 cm respectively. (c) Total heads at A and B are 15 cm and 10 cm respectively. (Assume Ysat = 18 kN/m³, and yw = 10 kN/m³) Hi 5m 3 Valve (closed) Inflow 5m (b) Valve (open) Inflow Outflow 5m (c) Valve (open)
The center of a rectangular area at the ground surface has Cartesian coordinates (0, 0), and one corner has coordinates (7, 18). All dimensions are in meters. The area carries a uniform pressure of 135 kPa. Estimate the stresses at a depth of 15 meters below the ground surface at each of the following locations: (0, 0), (0, 18), (7, 0), (7, 18), and (12, 28).a. Obtain the values by the Boussinesq methodb. Compare the results with those of the 2:1 methodc. Comment on the resultsHint: In the Boussinesq method, the equations attached can be used.
QUESTION 3) For the cross-section having uniform wall thickness given in the figure; a) Find the location of shear center (e). b) Obtain the shear stress diagram that will occur if a shear force of Ty = 40 kN is applied to the shear center. (t=10mm, as 100mm) 2a 슈
1. The bar has a cross-sectional area of 400*106 m². If it is subjected to a uniform axial distributed loading along its length and to two concentrated loads, determine the average normal stress in the bar as a function of x, for 0.5 m < x≤ 1.25 m. -X 0.5 m w = 8 kN/m -6 kN 0.75 m 3 kN
The following figure shows a section of an anchored retaining wall embedded into a saturated stiff clay layer. The sand has a unit weight of = 18 kN/m³, c' = 0 kPa and o' = 34º. The clay has a unit weight of = 20 kN/m³, c₁ = 80 kPa and = 0°. A uniform pressure of 40 kPa is applied on the soil surface. The short term stability of the wall is considered in an undrained analysis. Use the Rankin's theory of lateral earth pressure to determine the active and passive horizontal stresses. You should apply the requirements of AS 4678 and the partial factors of safety method in estimation of soil pressures. Assume the soil is in-situ and use a structural classification factor of ₁ = 1. 3m 1m Water table 1.5m 40 kPa Not to Scale Sand Clay Ta
Prob. 3 The plan of a flexible rectangular loaded area is shown in Figure below. The uniformly distributed load on the flexible area, q, is 100 kN/m². Determine the increase in the vertical stress, Aoz, at a depth of z = 2 m below a. Point A b. Point B c. Point C 4 m 1.6 m 2 m 0.8 m q = 100 kN/m² A 1.2 m-

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