Construction Materials, Methods and Techniques (MindTap Course List)
4th Edition
ISBN: 9781305086272
Author: William P. Spence, Eva Kultermann
Publisher: Cengage Learning
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Textbook Question
Chapter 15, Problem 6RQ
What are the main properties of white cast iron?
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Directions: Show your solutions explicitly, i.e., do not just write the final
answer.
1. A wall footing is to be constructed on a clay soil 1.4 below the ground. The footing is to support a wall that
imposes a load of 130 kN per meter of wall length. Considering general shear failure, determine the following:
130 kN/mm
1.4 m
a. Footing width if the factor of safety is 3.
b. Ultimate bearing capacity if B = 0.95 m.
C.
New factor of safety.
y = 17.92 kN/m²
c = 14.5 kPa
$ = 30°
1.5 m and has its hottom 2 m below the ground surface.
2. A square footing shown has a dimension of 1.5 m x 1.5 m and has its bottom 2 m below the ground surface.
The groundwater table is located at a depth of 3 m below the ground surface. Assume a general shear failure.
Determine the following:
2 m
y = 16 kN/m³
c = 14.5 kPa
→ = 28°
3 m
1,5 m
ysat
18.5 kN/m³
a. Ultimate bearing capacity of the soil beneath the footing (in kPa).
b. Allowable bearing capacity if it has a factor of safety of 3 (in kPa).
C.
Allowable load that the footing could carry (in kN).
d.
Allowable net bearing capacity if factor of safety is 3.
Allowable net load if factor of safety is 3.
Problem (11): A pipe discharges an unknown fluid into the
atmosphere from a tank of depth (h) through a pipe of length
(L), and diameter (d).
Given the values of L [m], d [cm], and (h) [cm], calculate the
discharge rate (Q) [lit/s] that would maintain Laminar flow in
the pipe with a Reynolds number of Re-1500. Ignore minor
losses.
Givens:
L =
139.364 m
d = 12.614 cm
h = 76.609 cm
Answers:
( 1 ) 6.911 lit/s
(2) 8.179 lit/s
( 3 ) 4.244 lit/s
(4) 4.987 lit/s
h
d
Chapter 15 Solutions
Construction Materials, Methods and Techniques (MindTap Course List)
Ch. 15 - What is the key element that influences the...Ch. 15 - Prob. 2RQCh. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - What are the commonly produced cast irons?Ch. 15 - What are the main properties of white cast iron?Ch. 15 - Why is malleable cast iron less brittle than white...Ch. 15 - How does the alloying element nickel affect the...Ch. 15 - If steel has a carbon content less than 0.90...Ch. 15 - Prob. 14RQ
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- B2. For the truss below, determine all member forces. Hint: see the provided slide with the problem set. P₁ = 12 kip and P2 = 6 kip (20 pts). P₁ A 16 ft D 8 ft 8 ft 8 ft B J K E 8 ft 8 ft I H G 8 ft 8 ft 8 ft B₁₂ F ΠΟΙΟΣarrow_forwardDirections: Show your solutions explicitly, I.e., do not just write the final answer. Always simplify and box your final answer. 1. A wall footing is to be constructed on a clay soll 1.4 below the ground. The footing is to support a wall that imposes a load of 130 kN per meter of wall length. Considering general shear failure, determine the following: 130 kN/m 4m a. Footing width if the factor of safety is 3. b. Ultimate bearing capacity if B = 0.95 m. c. New factor of safety. Y = 17.92 kN/m² c = 14.5 kPa $ -30° 2. A square footing shown has a dimension of 1.5 mx 1.5 m and has its bottom 2 m below the ground surface. The groundwater table is located at a depth of 3 m below the ground surface. Assume a general shear failure. Determine the following: L 2 m y = 16 kN/m³ c = 14.5 kPa = 28° 3 m 1.5 m Ysa1 = 18.5 kN/m³ a. Ultimate bearing capacity of the soll beneath the footing (in kPa). b. Allowable bearing capacity if it has a factor of safety of 3 (in kPa). C. Allowable load that the…arrow_forwardB2. For the truss below, determine all member forces. Hint: see the provided slide with the problem set. P₁ = 12 kip and P₂ = 6 kip (20 pts). P₁ 16 ft D 8 ft 8 ft 8 ft B K E 8 ft 8 ft 8 ft H 8 ft В G 1000 8 ftarrow_forward
- 14.1 A beam of rectangular cross section is 125 mm wide and 200 mm deep. If the maximum bending moment is 28.5 kN⚫m, determine (a) the maximum tensile and compressive bending stress, and (b) the bending stress 25 mm from the top of the section. 14.2 A rectangular beam 50 mm wide and 100 mm deep is subjected to bending. What bending moment will cause a maximum bending stress of 137.9 MN/m² (MPa)? 14.3 Determine the bending moment in a rectangular beam 3 in. wide and 6 in. deep if the maximum bend- ing stress is 15,000 psi.arrow_forwardB3. For the Howe truss below, assume all members are pin connected and take P₁ = 5 kN and P₂ = 10 kN: a. Determine all member forces (16 pts). b. Use a section cut to verify your answers for members GF, GD, and CD (4 Pts) P₁ A H 500 8 0000 B 0000] 2 m m 2 m 3 m B E D marrow_forwardI need detailed help solving this exercise from homework of Engineering Mathematics II.I do not really understand how to do, please do it step by step, not that long but clear. Thank you!P.S.: Please do not use AI, thanks!arrow_forward
- I need detailed help solving this exercise from homework of Engineering Mathematics II.I do not really understand how to do, please do it step by step, not that long but clear. Thank you!P.S.: Please do not use AI, thanks!arrow_forwardI need detailed help solving this exercise from homework of Engineering Mathematics II.I do not really understand how to do, please do it step by step, not that long but clear. Thank you!P.S.: Please do not use AI, thanks!arrow_forwardI need detailed help solving this exercise from homework of Engineering Mathematics II.I do not really understand how to do, please do it step by step, not that long but clear. Thank you!P.S.: Please do not use AI, thanks!arrow_forward
- I need detailed help solving this exercise from homework of Engineering Mathematics II.I do not really understand how to do, please do it step by step, not that long but clear. Thank you!P.S.: Please do not use AI, thanks!arrow_forwardI need detailed help solving this exercise from homework of Engineering Mathematics II.I do not really understand how to do, please do it step by step, not that long but clear. Thank you!P.S.: Please do not use AI, thanks!arrow_forwardI need detailed help solving this exercise from homework of Engineering Mathematics II.I do not really understand how to do, please do it step by step, not that long but clear. Thank you!P.S.: Please do not use AI, thanks!arrow_forward
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How Cast Iron Pans Are Made — How to Make It; Author: Eater;https://www.youtube.com/watch?v=aIBt0uFwjY8;License: Standard Youtube License