Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 16, Problem 16.8P
To determine
Find the size (B) of the square foundation.
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5. What is the lightest WT shape that would be adequate for tension yielding under a
design tensile demand of 1,215 kips? Assume that geometric constraints within the
structure require you to select a WT9 section.
a. Determine the effective area for the case shown in the figure below. Suppose that l = 6 in.
For L5 × 5 × 5/8: A₁ = 5.90 in.², = 1.47 in.
L5 × 5 × 5/8
Weld
(Express your answer to three significant figures.)
A₁ =
in.²
b. Determine the effective area for the case shown in the figure below. Suppose that l = 5 in.
PL³/8 X 4
Weld
(Express your answer to three significant figures.)
Ae =
in.2
2
c. Determine the effective area for the case shown in the figure below.
-5"
PL5/8 X 5
Weld
(Express your answer to three significant figures.)
Ae
in.2
d. Determine the effective area for the case shown in the figure below.
2" 2"
PL1/2 X 512
ос
3/4-in.-diam. bolts
(Express your answer to three significant figures.)
Ae =
in.²
e. Determine the effective area for the case shown in figure below.
PL³/8 X 6
7/8-in.-diam. bolts
(Express your answer to three significant figures.)
Ae=
in.2
A single-angle tension member of A36 steel must resist a dead load of 35 kips and a live load of 84 kips. The length of the member is 18 feet, and it will be connected with a single line of 1-
inch-diameter bolts, as shown in the figure below. There will be four or more bolts in this line. For the steel Fy = 36 ksi and F₁ = 58 ksi. Try the tension members given in the table below.
Tension member
rz (in.)
A, (in.²)
L6 × 6 ×
9.75
1.17
L 5 × 3 × 1/10
4.93
0.746
L5 × 3 × 16
5
2.56
0.758
L5 × 3 × 166
3.31
0.644
Bolt line
a. Select a single-angle tension member to resist the loads. Use LRFD.
A) L 6 × 6 ×
B) L 5 × 3 ×
C) L5 × 3
X
D) L 5 × 3 × 6
-Select- V
What is the required gross area?
(Express your answer to three significant figures.)
Ag =
in.2
What is the required effective area?
(Express your answer to three significant figures.)
Ae =
in.2
What is the minimum radius of gyration?
(Express your answer to three significant figures.)
1min =
in.
b. Select a single-angle tension member to…
Chapter 16 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
Ch. 16 - Prob. 16.1PCh. 16 - A 2.0 m wide continuous foundation carries a wall...Ch. 16 - Determine the maximum column load that can be...Ch. 16 - A 2.0 m wide strip foundation is placed in sand at...Ch. 16 - A square column foundation has to carry a gross...Ch. 16 - The applied load on a shallow square foundation...Ch. 16 - A column foundation (Figure 16.23) is 3 m 2 m in...Ch. 16 - Prob. 16.8PCh. 16 - A 2 m 3 m spread foundation placed at a depth of...Ch. 16 - An eccentrically loaded foundation is shown in...
Ch. 16 - For an eccentrically loaded continuous foundation...Ch. 16 - The shallow foundation shown in Figure 16.12...Ch. 16 - A mat foundation measuring 14 m 9 m has to be...Ch. 16 - Repeat Problem 16.13 with the following: Mat...Ch. 16 - Prob. 16.15PCh. 16 - For the mat in Problem 16.15, what will be the...Ch. 16 - Prob. 16.17CTPCh. 16 - Prob. 16.18CTPCh. 16 - A 2.0 m 2.0 m square pad footing will be placed...
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Similar questions
- In the connection shown in the figure below, the bolts are 15/8-inch in diameter, and A36 steel is used for all components: Fy = 36 ksi, Fu = 58 ksi. 21/2" 11½½" 3". -3"- 料 11/2" 11/2" О О t = 3/8 31/2" О О t = 7/16 Consider both the tension member and the gusset plate and compute the following: a. the design block shear strength of the connection (Express your answer to three significant figures.) Rn = kips b. the allowable block shear strength of the connection (Express your answer to three significant figures.) Rn/= kipsarrow_forward13/2/2025 Concrete Technology Q/ 1:1.5:3/0.62 concrete mix by weight, is to be used in cold weather, cement content = 5 Sack/m³ concreting when the temperature is assumed to be (32 °F), Calculate the temperature of the heated mixing water (in ˚C) to meet specification requirements in similar conditions.arrow_forwardThe tension member shown in the figure below must resist a service dead load of 60 kips and a service live load of 45 kips. Does the member have enough strength? The steel is A588: Fy = 50 ksi, Fu = 70 ksi; and the bolts are 11/8 inches in diameter. Assume that Ae = An. О О PL 3/8 X 71/2 a. Use LRFD. Determine the design strength and the factored load. Make a conclusion about the member. (Express your answers to three significant figures.) Φι Ρη = kips kips Pu = -Select- b. Use ASD. Determine the allowable strength and required strength. Make a conclusion about the member. (Express your answers to three significant figures.) Ft Ae = Pa = -Select- kips kipsarrow_forward
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