Principles of Foundation Engineering (MindTap Course List)
9th Edition
ISBN: 9781337705028
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 6, Problem 6.19P
A square foundation is shown in Figure P6.19. Use FS = 6, and determine the size of the foundation. Use Prakash and Saran’s method [Eq. (6.59)].
Figure P6.19
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A square foundation is shown in Figure P4.12. Use FS = 6, and determine the size of the foundation. Use Prakash and Saran theory [Eq. (4.55)].
7. Under the one-way eccentric load, if the base reaction force is trapezoidal, the
relationship between the eccentric distance e and the length of the rectangular
foundation is ().
A e 1/6 B. e < 1/6
C. e = 1/6 D. e
1/6
Prob. 3): A square shallow foundation is shown below. If the load eccentricity is 0.3 m,
determine the maximúm allowable load that the foundation can carry. Use Mayerhof's
method, and FS as 4.
(Eccentricity
in one direction
only) e = 0.3 m
Qal
Y = 16.3 kN/m3
c' = 20 kN/m?
p'=28°
1.0 m
1.5 m X 1.5 m
Centerline
Chapter 6 Solutions
Principles of Foundation Engineering (MindTap Course List)
Ch. 6 - For the following cases, determine the allowable...Ch. 6 - A 5.0 ft wide square footing is placed at 3.0 ft...Ch. 6 - Prob. 6.3PCh. 6 - Redo Problem 6.2 using the general bearing...Ch. 6 - The applied load on a shallow square foundation...Ch. 6 - A 2.0 m wide continuous foundation carries a wall...Ch. 6 - Determine the maximum column load that can be...Ch. 6 - A 2.0 m wide strip foundation is placed in sand at...Ch. 6 - A column foundation (Figure P6.9) is 3 m × 2 m in...Ch. 6 - For the design of a shallow foundation, given the...
Ch. 6 - An eccentrically loaded foundation is shown in...Ch. 6 - Prob. 6.12PCh. 6 - For an eccentrically loaded continuous foundation...Ch. 6 - A 2 m 3 m spread footing placed at a depth of 2 m...Ch. 6 - Prob. 6.15PCh. 6 - A tall cylindrical silo carrying flour is to be...Ch. 6 - A 2.0 m 2.0 m square pad footing will be placed...Ch. 6 - An eccentrically loaded continuous foundation is...Ch. 6 - A square foundation is shown in Figure P6.19. Use...Ch. 6 - The shallow foundation shown in Figure 6.25...Ch. 6 - Consider a continuous foundation of width B = 1.4...
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- " (a) Qu 1 Qu 3 B (b) M M → X M Qu M (c) Figure 4.24 Analysis of foundation with two-way eccentricity 7 = 17kN/m³ friction angle = : 35⁰° , and cohesion c = 0 Qu (d) The shallow foundation is shown in Figure 4.24 measures 1.5 m X 2.25 m and is subjected to a centric load and a moment. If ев = = 0.12m e₁ eL = 0.36m and the depth of the foundation is 0.8 m, determine the allowable load the foundation can carry. Use a factor of safety of 4. For the soil, we are told that unit weightarrow_forwardThe dimensions of the foundation of a column are 2 * 3 meters. According to the given information, it is desirable to determine the net allowable tolerable load by the foundation. Use the general formula. D = 1.5 m, d' = 25°, c' 70 kN/m². and FS = 3arrow_forwardAn eccentrically loaded continuous foundation is shown in Figure P6.18. Determine the ultimate load Qu per unit length that the foundation can carry. Use the reduction factor method [Eq. (6.67)]. 4 ft 2 ft Figure P6.18 Qu 2 ft → -5 ft Y = 105 lb/ft³ Groundwater table Ysat 118 lb/ft³ c' = 0 $' = 35° =arrow_forward
- Using W24X62 as the section for the beam, determine the value (kN) of the nominal collapse load Pn. Fy = 345 MPa. Assume full lateral support. Note: Neglect the self-weight of the beam. P₁ 6.096 m + 3.6576 marrow_forwardA short rectangular post supports a compressive load of P = 210 kN as shown. A top view of the post showing the location where load P is applied to the top of the post is also shown. Determine the vertical normal stress at corner d of the post. -9.14 MPa -15.12 MPa -11.20 MPa -12.06 MPa -14.02 MPaarrow_forwardA net load Q was applied on a rectangular flexible foundation. A point P is located inside the foundation soil with a vertical distance Z from the foundation bottom at center. The stress increase Δ? at Z caused by Q is always larger than zero. A. True B. Falsearrow_forward
- Refer to Figure P6.4. A strip load of q = 900 lb/ft2 is applied over a width B = 36 ft. Determine the increase in vertical stress at point A located z = 15 ft below the surface. Given: x = 27 ft. Figure P6.4arrow_forward• A two-span continuous one-way slab with span length of 4.3 meters is integral with its beam supports which are 300 mm wide with spacing 2m on center. The slab carries a factored load of 27000 Pa. f'c = 21Mpa and fy = 275 Mpa. a. Determine the minimum depth of slab (mm). b. Compute the positive and negative factored bending moments (KN-m). c. Calculate the spacing of 10mm main bars (mm). d. Find the spacing of 10mm temperature bars (mm).arrow_forwardTake P=10 KN .Determine maximum shear stresssarrow_forward
- 5.8 An eccentrically loaded foundation is shown in Figure P5.8. Use FS of 4 and determine the maximum allowable load that the foundation can carry. Use Meyerhof's effective area method. 1.0 m (Eccentricity in one direction only) e = 0.15 m Call 1.5 m X 1.5 m Centerline Figure P 5.8 y = 17 kN/m³ c' = 0 o'= 36°arrow_forwardDetermine the allowable shear stress if W= 33,813lb.arrow_forward3. A square foundation is constructed in a soil deposit as shown in the figure below. Assume that the groundwater table is 6 meters below the foundation. The applied load on the shallow allowable load. (Use general bearing capacity equation.) square foundation makes an angle of 10° with the vertical. Use FS 3 and determine the 2 m 6 m 4 m y = 17.5 kN/m³ 4' = 33° c' = 20 kN/m² Ysat = 20k N/m³ Groundwater tablearrow_forward
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