1. A rigid beam AD shown below is supported by three steel bars (E = 30× 10°ksi, and a = 7.2 x 10-6/°F) and a pin at D. The three cross-sectional areas of the bars are: A1 1.2 in?, A2 = 1.5 in², and A3 %3D 1.8 in?. The length of the bars are L1 = 40 in, L2 = 50 in, and L3 = 30 in. The dimensions a and b are: a = 30 in and b = 60 in. The beam AD was horizontal before a load P = 100 kip was applied downward at point A and the temperature of the three bars was decreased by 50°F. Determine the rotation angle 0 and stress in all three bars. L2 |(2) (1) "Rigid" O A B. a L3 |(3)

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
1. A rigid beam AD shown below is supported by three steel bars (E = 30× 10°ksi, and a =
7.2 x 10-6/°F) and a pin at D. The three cross-sectional areas of the bars are: A1 =
1.2 in?, A2
1.5 in?, and A3
1.8 in?. The length of the bars are L1
40 in,
%3D
L2 = 50 in, and L3 = 30 in. The dimensions a and b are: a = 30 in and b = 60 in. The
beam AD was horizontal before a load P = 100 kip was applied downward at point A
and the temperature of the three bars was decreased by 50°F. Determine the rotation
angle 0 and stress in all three bars.
L2
|(2)
|(1)
-"Rigid"
В
L3
E a -
(3)
Transcribed Image Text:1. A rigid beam AD shown below is supported by three steel bars (E = 30× 10°ksi, and a = 7.2 x 10-6/°F) and a pin at D. The three cross-sectional areas of the bars are: A1 = 1.2 in?, A2 1.5 in?, and A3 1.8 in?. The length of the bars are L1 40 in, %3D L2 = 50 in, and L3 = 30 in. The dimensions a and b are: a = 30 in and b = 60 in. The beam AD was horizontal before a load P = 100 kip was applied downward at point A and the temperature of the three bars was decreased by 50°F. Determine the rotation angle 0 and stress in all three bars. L2 |(2) |(1) -"Rigid" В L3 E a - (3)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Trusses
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.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Structural Analysis
Structural Analysis
Civil Engineering
ISBN:
9781337630931
Author:
KASSIMALI, Aslam.
Publisher:
Cengage,
Structural Analysis (10th Edition)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Sustainable Energy
Sustainable Energy
Civil Engineering
ISBN:
9781337551663
Author:
DUNLAP, Richard A.
Publisher:
Cengage,
Traffic and Highway Engineering
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning