The square steel tube having the cross section shown is used as a column of 20-ft effective length to carry a centric load of 69 kips. Knowing that the tubes available for use are made with wall thicknesses ranging from in. to in. In increments of In., use allowable stress design to determine the lightest tube that can be used. Use oy-36 ksl and E-29 × 106 psl. (Input the final answer as a fraction.) X
The square steel tube having the cross section shown is used as a column of 20-ft effective length to carry a centric load of 69 kips. Knowing that the tubes available for use are made with wall thicknesses ranging from in. to in. In increments of In., use allowable stress design to determine the lightest tube that can be used. Use oy-36 ksl and E-29 × 106 psl. (Input the final answer as a fraction.) X
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
The square steel tube having the cross section shown is used as a column of 20-ft effective length to carry a centric load of 69 kips. Knowing that the tubes available for use are made with wall thicknesses ranging from 14 in. to 34 in. in increments of 116 in., use allowable stress design to determine the lightest tube that can be used. Use σY = 36 ksi and E = 29 × 106 psi. (Input the final answer as a fraction.)
Transcribed Image Text:The square steel tube having the cross section shown is used as a column of 20-ft effective length to carry a centric load of 69
kips. Knowing that the tubes available for use are made with wall thicknesses ranging from in. to In. In Increments of In..
use allowable stress design to determine the lightest tube that can be used. Use oy= 36 ksl and E= 29 x 106 psl. (Input the final
answer as a fraction.)
6 in.
6 in.
The lightest tube that can be used has a thickness of
In.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 3 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning