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Determine the prestressing steel area required for the precast concrete T-bear Use the following data: Total moment = 250 kN-m Effective stress fse= 862 MPa Allowable concrete stress = f.=11 MPa Consider zero stress at the bottom of the beam I=3673x106 mm A=103125 mm² Eccentricity = 271.6 mm Centroid of steel is located at 100 mm from the bottom of the beam.

Determine the prestressing steel area required for the precast concrete T-bear Use the following data: Total moment = 250 kN-m Effective stress fse= 862 MPa Allowable concrete stress = f.=11 MPa Consider zero stress at the bottom of the beam I=3673x106 mm A=103125 mm² Eccentricity = 271.6 mm Centroid of steel is located at 100 mm from the bottom of the beam.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Determine the prestressing steel area required for the precast concrete T-beam. Use the following data: Total moment = 250 kN-m Effective stress fse= 862 MPa Allowable concrete stress = f.=11 MPa Consider zero stress at the bottom of the beam I=3673x106 mm4 A=103125 mm² Eccentricity = 271.6 mm Centroid of steel is located at 100 mm from the bottom of the beam. Select one: a. 591.97 mm b. 789.29 mm 2. C. 443.98 mm 2. d. 986.61 mm
Transcribed Image Text:Determine the prestressing steel area required for the precast concrete T-beam. Use the following data: Total moment = 250 kN-m Effective stress fse= 862 MPa Allowable concrete stress = f.=11 MPa Consider zero stress at the bottom of the beam I=3673x106 mm4 A=103125 mm² Eccentricity = 271.6 mm Centroid of steel is located at 100 mm from the bottom of the beam. Select one: a. 591.97 mm b. 789.29 mm 2. C. 443.98 mm 2. d. 986.61 mm
What is the stress at the top fiber of the precast concrete T-beam? Use the following data: Total moment = 250 kN-m Effective stress fse= 862 MPa Allowable concrete stress = fc=11 MPa Consider zero stress at the bottom of the beam I=3673x106 mm4 %3D A=103125 mm² Eccentricity = 271.6 mm Centroid of steel is located at 100 mm from the bottom of the beam. Select one: O a. 6.00 MPa b. 7.99 MPa С. 10.65 MPa d. 13.31 MPa
Transcribed Image Text:What is the stress at the top fiber of the precast concrete T-beam? Use the following data: Total moment = 250 kN-m Effective stress fse= 862 MPa Allowable concrete stress = fc=11 MPa Consider zero stress at the bottom of the beam I=3673x106 mm4 %3D A=103125 mm² Eccentricity = 271.6 mm Centroid of steel is located at 100 mm from the bottom of the beam. Select one: O a. 6.00 MPa b. 7.99 MPa С. 10.65 MPa d. 13.31 MPa
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