A prestressed concrete rectangular beam of size 300 x 900 mm is prestressed with an initial prestressing force of 700 kN at an eccentricity of 350 mm at midspan, stress at top fibre at midspan due to prestress alone is : 1. 3.46 MPa (tension) 2. 8.64 MPa (compression) 3. 2.59 MPa (compression) 4. Zero

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A prestressed concrete rectangular beam of size 300 x 900 mm is prestressed with an
initial prestressing force of 700 kN at an eccentricity of 350 mm at midspan, stress at
top fibre at midspan due to prestress alone is :
1. 3.46 MPa (tension)
2. 8.64 MPa (compression)
3. 2.59 MPa (compression)
4. Zero
Transcribed Image Text:A prestressed concrete rectangular beam of size 300 x 900 mm is prestressed with an initial prestressing force of 700 kN at an eccentricity of 350 mm at midspan, stress at top fibre at midspan due to prestress alone is : 1. 3.46 MPa (tension) 2. 8.64 MPa (compression) 3. 2.59 MPa (compression) 4. Zero
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