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

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

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

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