A prestressed hollow box cross section is shown in the figure. The area of prestressed reinforcement in the tension zone is 1148 mm2. Use grade 270 for seven wire-strand tendons. fpy = specified yield strength of tendons fpu = specified tensile strength o pre stressing tendons fse = effective prestress after losses fse = 1022 MPa Aps = 1148 mm2 fpy = 0.95fpu fc’ = 34.5 MPa fpu = 1860 MPa a. Compute the Yp factor. b. Compute the stress in prestressed reinforcement at nominal strength. c. Compute for the design moment capacity. d. Compute the effective pre stressing force after losses of stress e. Compute the depth of the compression block. f. Compute the pre stressing steel ratio.
A prestressed hollow box cross section is shown in the figure. The area of prestressed reinforcement in the tension zone is 1148 mm2. Use grade 270 for seven wire-strand tendons. fpy = specified yield strength of tendons fpu = specified tensile strength o pre stressing tendons fse = effective prestress after losses fse = 1022 MPa Aps = 1148 mm2 fpy = 0.95fpu fc’ = 34.5 MPa fpu = 1860 MPa a. Compute the Yp factor. b. Compute the stress in prestressed reinforcement at nominal strength. c. Compute for the design moment capacity. d. Compute the effective pre stressing force after losses of stress e. Compute the depth of the compression block. f. Compute the pre stressing steel ratio.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
100%
A prestressed hollow box cross section is shown in the figure. The area of prestressed reinforcement in the tension zone is 1148 mm2. Use grade 270 for seven wire-strand tendons.
fpy = specified yield strength of tendons
fpu = specified tensile strength o pre stressing tendons
fse = effective prestress after losses
fse = 1022 MPa
Aps = 1148 mm2
fpy = 0.95fpu
fc’ = 34.5 MPa
fpu = 1860 MPa
a. Compute the Yp factor.
b. Compute the stress in prestressed reinforcement at nominal strength.
c. Compute for the design moment capacity.
d. Compute the effective pre stressing force after losses of stress
e. Compute the depth of the compression block.
f. Compute the pre stressing steel ratio.
Transcribed Image Text:600 mm
125 mm
350 mm
125 mm
125 mm
700 mm
500 mm
125 mm
Hiso mm
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY