A 6.5m long cantilever beam 300mm x 600mm carries a uniformly distributed dead load(beam weight included) of 5kN/m throughout the length and a concentrated live load of 19KN at the free end. To prevent excessive deflection of the beam it is pretensioned with 12mm diameter strands causing a final prestress force of 550 KN. Pe= 0.85Pi Determine the resulting stress at the bottom fiber at the freee end if the center of gravity of the strands coincide the centroid of the section A. 2.59 MPa B. 3.05 MPa C. 4.86 MPa D. 7.38 MPa E. None
A 6.5m long cantilever beam 300mm x 600mm carries a uniformly distributed dead load(beam weight included) of 5kN/m throughout the length and a concentrated live load of 19KN at the free end. To prevent excessive deflection of the beam it is pretensioned with 12mm diameter strands causing a final prestress force of 550 KN. Pe= 0.85Pi Determine the resulting stress at the bottom fiber at the freee end if the center of gravity of the strands coincide the centroid of the section A. 2.59 MPa B. 3.05 MPa C. 4.86 MPa D. 7.38 MPa E. None
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 6.5m long cantilever beam 300mm x 600mm carries a uniformly distributed dead load(beam weight included) of 5kN/m throughout the length and a concentrated live load of 19KN at the free end. To prevent excessive deflection of the beam it is pretensioned with 12mm diameter strands causing a final prestress force of 550 KN. Pe= 0.85Pi
- Determine the resulting stress at the bottom fiber at the freee end if the center of gravity of the strands coincide the centroid of the section
A. 2.59 MPa B. 3.05 MPa C. 4.86 MPa D. 7.38 MPa E. None
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