Structural Steel Design (6th Edition)
6th Edition
ISBN: 9780134589657
Author: Jack C. McCormac, Stephen F. Csernak
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 1.1PFS
When did an economical production method of steel become available?
Expert Solution & Answer
To determine
The invention of economical production method of the steel.
Explanation of Solution
Steel has been the most used material in the structures for a few centuries. The production of steel was quite expensive compared to other materials. In earlier days of the nineteenth century, the American inventors started processes which can produce the steel economically. The process was named as Bessemer process. By this process, the steel production cost reduced to 82% to the previous cost. So, this is the first economical production method invention in steel according to the production cost.
Therefore, we can say that economic production of steel started in the early 19th century.
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Given cross-classification data for the Jeffersonville Transportation Study Area in this table, develop the family of cross-classification curves. (Use high = $55,000; medium
low = $15,000. Submit a file with a maximum size of 1 MB.)
Choose File No file chosen
This answer has not been graded yet.
Determine the number of trips produced (by purpose) for a traffic zone containing 400 houses with an average household income of $35,000.
1700
HBW
HBO
NHB
×
Your response differs from the correct answer by more than 10%. Double check your calculations. trips
1839
x
Your response differs from the correct answer by more than 10%. Double check your calculations. trips
1716
x
Your response differs from the correct answer by more than 10%. Double check your calculations. trips
=
$25,000;
You are given the socioeconomic data for the Jeffersonville Transportation Study Area, as follows.
Population = 72,173
Area = 70 sq mi
Registered vehicles = 26,685
Single-family housing units = 15,675
Apartment units = 7,567
Retail employment = 5,502
Nonretail employment = 27,324
Student attendance = 28,551
Average household income = $17,500
Transportation analysis zones = 129
The results of the cross-classification analysis are as follows.
Total trips produced for study area = 322,150 per day
Home-to-work trips:
Home-to-nonwork trips:
Nonhome-based trips:
13% (41,880)
62% (199,733)
25% (80,537)
The attraction rates for the area have been developed using the following assumptions.
100 percent of home-to-work trips go to employment locations.
Home-to-nonwork trips are divided into the following types.
Visit friends:
Shopping:
School:
Nonretail employment:
10%
60%
10%
20%
Nonhome-based trips are divided into the following types.
Other employment area (nonretail):
Shopping:
60%
40%…
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Chapter 1 Solutions
Structural Steel Design (6th Edition)
Ch. 1 - When did an economical production method of steel...Ch. 1 - Prob. 1.2PFSCh. 1 - What production method for steel shapes is...Ch. 1 - Prob. 1.4PFSCh. 1 - List the preferred steel type (ASTM specification)...Ch. 1 - What is the range of carbon content in the...Ch. 1 - List the functions for furnishing of structural...Ch. 1 - List four advantages of steel as a structural...Ch. 1 - List four disadvantages of steel as a structural...Ch. 1 - What is the minimum yield stress of the...
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