3rd: A simply supported 12-m span beam, 300-mm wide by 550-mm deep, is pre- stressed by straight tendons with Aps = 774 mm² located 70 mm from the bottom at an initial prestress of 1.10 GPa. What maximum service uniform live load can the beam support in addition to its own weight if allowable tensile stress in concrete 0.5 x

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
3rd: A simply supported 12-m span beam,
300-mm wide by 550-mm deep, is pre-
stressed by straight tendons with Aps = 774
mm² located 70 mm from the bottom at an
initial prestress of 1.10 GPa. What maximum
service uniform live load can the beam
support in addition to its own weight if
allowable tensile stress in concrete 0.5 x
square root of f'c is permitted. after 17% loss
Write your answer in 2 decimal places only.
Use fc = 30 MPa unit weight of concrete 24
kN/cu.m. Sign convention is (+) tension, (-)
compression. Indicate the sign in your final
answer.
Transcribed Image Text:3rd: A simply supported 12-m span beam, 300-mm wide by 550-mm deep, is pre- stressed by straight tendons with Aps = 774 mm² located 70 mm from the bottom at an initial prestress of 1.10 GPa. What maximum service uniform live load can the beam support in addition to its own weight if allowable tensile stress in concrete 0.5 x square root of f'c is permitted. after 17% loss Write your answer in 2 decimal places only. Use fc = 30 MPa unit weight of concrete 24 kN/cu.m. Sign convention is (+) tension, (-) compression. Indicate the sign in your final answer.
Expert Solution
steps

Step by step

Solved in 4 steps with 4 images

Blurred answer
Knowledge Booster
Methods to Determine Vertical Stress
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