Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781337516877
Author: Das
Publisher: Cengage
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Chapter 3, Problem 3.21P
(a)
To determine
Calculate the specific gravity of soil solids.
(b)
To determine
Calculate the void ratio of the soil.
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Students have asked these similar questions
A 15 in. x 26 in. rectangular RC beam (shown in figure below) supports a service uniform dead
load of 1.3 kip/ft and a service uniform live load of 1.6 kip/ft. The dead load includes the beam’s
self-weight. Design the reinforcement required for maximum moments and show the design in
sketches. Use f c ’ = 4,000 psi and f y = 60,000 psi. The beam is used in an open parking garage and
is exposed to weather.
a. Find factored maximum bending moments.
b. Design for max. negative moment.
c. Design for max. positive moment.
Hint: Assume an initial beam shape (b, d), then solve for the needed reinforcements at the maximum
negative and positive factored bending moments. This is like the class example.
A simply supported rectangular RC beam is to carry a uniform factored dead load of 1.2 kip/ftand a concentrated factored live load of 16 kip at mid-span. The beam self-weight is not includedin these loads. The concrete weighs 135 pcf. The span length is 25 ft. Please find the smallestsection allowed by ACI and design accordingly. Use f c’ = 5,000 psi, f y = 75,000 psi. Theexposure is interior with no weather exposure.a. Assume an arbitrary self-weight/ft of the beam.b. Find the maximum factored bending moment in the beam.c. Set up the moment equation and solve for the beam section.d. Revise the assumption if needed
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a
5
I
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d
25
5'
S'
E=29000ksi
I = 400 in 4
Ex = ?
Q = ?
Chapter 3 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
Ch. 3 - Prob. 3.1PCh. 3 - Prob. 3.2PCh. 3 - Prob. 3.3PCh. 3 - Prob. 3.4PCh. 3 - Prob. 3.5PCh. 3 - Prob. 3.6PCh. 3 - Prob. 3.7PCh. 3 - Prob. 3.8PCh. 3 - Prob. 3.9PCh. 3 - Prob. 3.10P
Ch. 3 - Prob. 3.11PCh. 3 - Prob. 3.12PCh. 3 - Prob. 3.13PCh. 3 - Prob. 3.14PCh. 3 - Prob. 3.15PCh. 3 - Prob. 3.16PCh. 3 - Prob. 3.17PCh. 3 - Prob. 3.18PCh. 3 - Prob. 3.19PCh. 3 - Prob. 3.20PCh. 3 - Prob. 3.21PCh. 3 - Prob. 3.22PCh. 3 - Prob. 3.23PCh. 3 - Prob. 3.24PCh. 3 - For a given sandy soil, emax = 0.75 and emin =...Ch. 3 - For a given sandy soil, the maximum and minimum...Ch. 3 - Prob. 3.27PCh. 3 - Prob. 3.28PCh. 3 - Prob. 3.29PCh. 3 - Prob. 3.1CTPCh. 3 - Prob. 3.2CTPCh. 3 - Prob. 3.3CTP
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- H.W: Evaluate the integral 1. 1 1 }} 0 y x²exy dxdy 2. 1 ܐy 2 dxdyarrow_forwardGiven the following end areas for cut & fill, complete the eart calculation using a shrinkage of 10%. Then draw the M.H.D. and the longitudinal pro of the earthworks & find the following: a) Limit of Economic Haul (L.E.H.). b) Freehaul volume (F.H.V.). c) Overhaul volume (O.H.V.). d) Waste volume. e) Borrow volume. f) Total cost of the earthworks. Given that: -Cost of overhaul = 30 ID/m².station. -Cost of borrow-120 ID/m³. - Cost of freehaul - 70 ID/m². -Freehaul Distance (F.H.D.)- 200m-2 stations. Areas (m²) Station Volumes (m) Cut Fill Cut+ Fill- 0 10 Corrected Fill- 1100 1 12 1300 2 14 1500 3 146 1500 14 350 550 250 275 10 5 16 96 1300 1430 6 1500 1650 14 7 1300 1430 12 S . 1000 1100 8 9 300 200 220 12 10 1400 16 11arrow_forwardCalculate the clean bed head loss for a filter consisting of uniformly graded sphere silica beads (shape factor p = 1), all having a diameter of 1 mm, packed into a 5 m x 5 m filter bed with depth D = 8 m, with a bed porosity of ε = 0.4, treating a flow rate of 0.025 m³/s. Assume a viscosity of 1.25x10-6 m2/s. Report your answer with the units of meters and round to the nearest 0.1.arrow_forward
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