A rectangular reinforced concrete beam has b=300mm and d=480mm, concrete strength f'c=34 mpa and steel yield strength fy=415 MPa. Compression reinforcement, if necessary, will be placed 70 mm from the extreme concrete in compression. For this problem, the dead load moment is 140 kn-m and the live load moment is 180 kn-m.   a.) what is the value of the required moment in kn-m? b.) what is the value of the maximum steel ratio when the beam is singly reinforced? c.) what is the required tension steel area in mm^2?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
icon
Related questions
icon
Concept explainers
Question

A rectangular reinforced concrete beam has b=300mm and d=480mm, concrete strength f'c=34 mpa and steel yield strength fy=415 MPa. Compression reinforcement, if necessary, will be placed 70 mm from the extreme concrete in compression. For this problem, the dead load moment is 140 kn-m and the live load moment is 180 kn-m.

 

a.) what is the value of the required moment in kn-m?

b.) what is the value of the maximum steel ratio when the beam is singly reinforced?

c.) what is the required tension steel area in mm^2?

 

if M(subscript)d= 250 kn-m and M(subscript)L= 240 kn-m

d.) determine the required tension steel area in mm^2

e.) determine the required compression steel area in mm^2

Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Design criteria for structural loading
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