3. A beam simply supported on a 12-m span carries a uniformly distributed load of 30 kN/m over the middle 6 m. Using an allowable stress of 130 MPa, determine the lightest suitable beam. What is the actual maximum stress in the selected beam? (Shear and moment diagram are optional) 30 kN/m -3m- -3m- Ḥ 6 m
3. A beam simply supported on a 12-m span carries a uniformly distributed load of 30 kN/m over the middle 6 m. Using an allowable stress of 130 MPa, determine the lightest suitable beam. What is the actual maximum stress in the selected beam? (Shear and moment diagram are optional) 30 kN/m -3m- -3m- Ḥ 6 m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
![3. A beam simply supported on a 12-m span carries a
uniformly distributed load of 30 kN/m over the middle
6 m. Using an allowable stress of 130 MPa, determine
the lightest suitable beam. What is the actual
maximum stress in the selected beam? (Shear and
moment diagram are optional)
30 kN/m
3 m.
6 m
3 m-
Section
Modulus
(x 103 mm³)
3220
3140
3630
3080
Shapes
W610 x 125
W530 138
W610 x 140
W460 x 144
Weight
(kg/m)
125.1
138.3
140.1
144.6](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F94f70326-ae58-4dab-ade4-db657a599cbb%2F691aa156-ceb2-4593-9ea7-f2a41cebe90d%2Fflte1w_processed.png&w=3840&q=75)
Transcribed Image Text:3. A beam simply supported on a 12-m span carries a
uniformly distributed load of 30 kN/m over the middle
6 m. Using an allowable stress of 130 MPa, determine
the lightest suitable beam. What is the actual
maximum stress in the selected beam? (Shear and
moment diagram are optional)
30 kN/m
3 m.
6 m
3 m-
Section
Modulus
(x 103 mm³)
3220
3140
3630
3080
Shapes
W610 x 125
W530 138
W610 x 140
W460 x 144
Weight
(kg/m)
125.1
138.3
140.1
144.6
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
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 2 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
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](https://compass-isbn-assets.s3.amazonaws.com/isbn_cover_images/9781337630931/9781337630931_smallCoverImage.jpg)
![Structural Analysis (10th Edition)](https://www.bartleby.com/isbn_cover_images/9780134610672/9780134610672_smallCoverImage.gif)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
![Principles of Foundation Engineering (MindTap Cou…](https://www.bartleby.com/isbn_cover_images/9781337705028/9781337705028_smallCoverImage.gif)
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
![Structural Analysis](https://compass-isbn-assets.s3.amazonaws.com/isbn_cover_images/9781337630931/9781337630931_smallCoverImage.jpg)
![Structural Analysis (10th Edition)](https://www.bartleby.com/isbn_cover_images/9780134610672/9780134610672_smallCoverImage.gif)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
![Principles of Foundation Engineering (MindTap Cou…](https://www.bartleby.com/isbn_cover_images/9781337705028/9781337705028_smallCoverImage.gif)
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
![Fundamentals of Structural Analysis](https://www.bartleby.com/isbn_cover_images/9780073398006/9780073398006_smallCoverImage.gif)
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
![Sustainable Energy](https://www.bartleby.com/isbn_cover_images/9781337551663/9781337551663_smallCoverImage.gif)
![Traffic and Highway Engineering](https://www.bartleby.com/isbn_cover_images/9781305156241/9781305156241_smallCoverImage.jpg)
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning