Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Textbook Question
Chapter 2, Problem 2.9P
Redo Problem 2.7 according to the AASHTO system (Table 2.3).
2.7 The particle characteristics of a soil are given below. Draw the particle-size distribution curve and find the percentages of gravel, sand, silt, and clay according to the MIT system (Table 2.3).
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Five wood boards are bolted together to
form the built-up beam shown in the
figure. The beam is subjected to a
shear force of V = 14 kips. Each bolt
has a shear strength of V bolt = 6 kips.
[h₁ = 4 in., t₁ = 0.75 in., h₂ = 6.5 in., t₂ =
1.25 in.]
h/2
+
hi/2
h:/2
h: 2
hi
+
hiz
Determine the moment of inertia of the
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Calculate the shear force in each bolt.
Calculate the shear stress in the bolts.
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and the lumber flanges at a spacing of s
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Chapter 2 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
Ch. 2 - Prob. 2.1PCh. 2 - Following are the results of a sieve analysis: a....Ch. 2 - For a soil, given: D10 = 0.08 mm D30 = 0.22 mm D60...Ch. 2 - For a soil, given: D10 = 0.08 mm D30 = 0.22 mm D60...Ch. 2 - Repeat Problem 2.2 with the following results of a...Ch. 2 - Repeat Problem 2.2 with the following results of a...Ch. 2 - The particle characteristics of a soil are given...Ch. 2 - Redo Problem 2.7 according to the USDA system...Ch. 2 - Redo Problem 2.7 according to the AASHTO system...Ch. 2 - In a hydrometer test, the results are as follows:...
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- A cantilever flexural member is fabricated by bolting two identical C- section steel shapes back to back as shown in the figure. The beam has a span of L = 1300 mm and supports a concentrated load of P = 800 N. The cross-sectional dimensions of the built- up shape are shown in the figure. Assume the section has a constant thickness of t = 2.5 mm. Bolts of 3.5 mm diameter are installed at intervals of s = 65 mm.[b = 100 mm, a = 25 mm] b T Determine the shear flow in the sections connected by the fasteners. Calculate the shear force in each bolt. Calculate the shear stress in the bolts.arrow_forwardFive wood boards are bolted together to form the built-up beam shown in the figure. The beam is subjected to a shear force of V = 14 kips. Each bolt has a shear strength of V bolt = 6 kips. [h₁4 in., t₁ = 0.75 in., h₂ = 6.5 in., t₂ = 1.25 in.] hi/2 h/2 h2 h:/2 hi/2 + h2 Determine the moment of inertia of the section. Determine the shear flow in the section connected by fasteners. Determine the maximum allowable spacing of the bolts.arrow_forwardTwo built-up beams shown in the figure below have the same dimensions and are connected by the same types of nails with the same spacing. Which beam could carry more shear force if the controlling factor is the shear flow in the fasteners? Nails Beam (1) Z Beam (2) Beam (2) Beam (1) Both are the same Cannot answer without knowing the shear diagram Cannot answer without knowing the modulus of rigidity Nailsarrow_forward
- Two built-up beams shown in the figure below have the same dimensions and are connected by the same types of nails with the same spacing. Which beam could carry more shear force if the controlling factor is the shear flow in the fasteners? Nails Beam (1) Beam (2) Cannot answer without knowing the shear diagram Beam (1) Cannot answer without knowing the modulus of Nailsarrow_forward8-51. Determine the horizontal displacement at C. Take E = 29(10³) ksi, I = 150 in for each member. Use the method of virtual work. 8ft 10 ft Barrow_forward5. Problem 8-46 on Page 374. 8-46. The L-shaped frame is made from two fixed-connected segments. Determine the vertical displacement of the end C. Use the method of virtual work. El is constant. -9 ft- 2 k/ft 12 ftarrow_forward
- HOMEWORK (1) For the plan and section of the wall shown below, calculate the following: - 1. the length of footing excavation 2, the length of bricks work under D.P.C for each step by using: a) Centre line method b) Long wall-short wall method عرف الحق Im D.P.C 1.00 m Section 0.24 m 0.36 m 0.48 m 15 m r N 8 m 5 m Plan Farrow_forwardfollowing: 1. the length of footing excavation 2. the length of bricks work under D.P.C for each step by using: a) Centre line method b) Long wall-short wall method D.P.C 1.00 m 0.24 m 0.36 m y0.48 m 15 m Section. N A k W 8 m 5 m زف الحو 不 Z Plan ate the Larrow_forwardPage 3 3.5) Using the Method of Components, determine the magnitude, the direction, and the sense of the resultant for the coplanar concurrent force system shown below. Y 76 lbs 10 kips 4 3 0 Y 12 kips 5 12 > x 60 lbsarrow_forward
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