(ii) A prestressed concrete beam 150 mm wide and 300 mm deep is prestressed by four high tensile wires of 5 mm diameter stressed to 1200 MPa. The wires are located at an eccentricity of 50 mm. Calculate the stress developed at the soffit of the beam considering the gross "cross-sectional area of concrete" and "equivalent area of concrete section". What is the percentage difference? Modular ratio is 6.
(ii) A prestressed concrete beam 150 mm wide and 300 mm deep is prestressed by four high tensile wires of 5 mm diameter stressed to 1200 MPa. The wires are located at an eccentricity of 50 mm. Calculate the stress developed at the soffit of the beam considering the gross "cross-sectional area of concrete" and "equivalent area of concrete section". What is the percentage difference? Modular ratio is 6.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
![(ii)
A prestressed concrete beam 150 mm wide and 300 mm deep is
prestressed by four high tensile wires of 5 mm diameter stressed
to 1200 MPa. The wires are located at an eccentricity of 50 mm.
Calculate the stress developed at the soffit of the beam
considering the gross "cross-sectional area of concrete" and
"equivalent area of concrete section". What is the percentage
difference? Modular ratio is 6.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffa813b9d-9ac7-44d3-ba05-edb4f139a809%2F8756aeee-06af-43fc-8147-cca9940bb490%2Fneii9jt_processed.jpeg&w=3840&q=75)
Transcribed Image Text:(ii)
A prestressed concrete beam 150 mm wide and 300 mm deep is
prestressed by four high tensile wires of 5 mm diameter stressed
to 1200 MPa. The wires are located at an eccentricity of 50 mm.
Calculate the stress developed at the soffit of the beam
considering the gross "cross-sectional area of concrete" and
"equivalent area of concrete section". What is the percentage
difference? Modular ratio is 6.
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