A rigid bar ABCD is pinned at end A and supported by two cables at points B and C (see figure). The cable at B has nominal diameter dB =12 mm and the cable at C has nominal diameter dC = 20 mm. A load P acts at end D of the bar. What is the allowable load P if the temperature rises by 60°C and each cable is required to have a factor of safety of at least 5 against its ultimate load? Note: The cables have effective modulus of elasticity E= 140 GPa and coefficient of thermal expansion = 12 x 10-6/°C. The ultimate tensile load for bars B and C are 102 kN and 231 kN, respectively. -dc dB A 2b B + 2b Figure No. 2
A rigid bar ABCD is pinned at end A and supported by two cables at points B and C (see figure). The cable at B has nominal diameter dB =12 mm and the cable at C has nominal diameter dC = 20 mm. A load P acts at end D of the bar. What is the allowable load P if the temperature rises by 60°C and each cable is required to have a factor of safety of at least 5 against its ultimate load? Note: The cables have effective modulus of elasticity E= 140 GPa and coefficient of thermal expansion = 12 x 10-6/°C. The ultimate tensile load for bars B and C are 102 kN and 231 kN, respectively. -dc dB A 2b B + 2b Figure No. 2
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
Please help and explain thanks!
Transcribed Image Text:A rigid bar ABCD is pinned at end A and supported by two cables at points B and C (see
figure). The cable at B has nominal diameter dB =12 mm and the cable at C has nominal diameter dC =
20 mm. A load P acts at end D of the bar. What is the allowable load P if the temperature rises by 60°C
and each cable is required to have a factor of safety of at least 5 against its ultimate load?
Note: The cables have effective modulus of elasticity E= 140 GPa and coefficient of thermal expansion
= 12 x 10-6/°C. The ultimate tensile load for bars B and C are 102 kN and 231 kN, respectively.
-do
dB
A
2b
B
+
2b
Figure No. 2
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 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