A pre-tensioned concrete member of section 200 mm x 250 mm contains tendons of area 500 mm2 at centre of gravity of the section. The prestress in the tendons is 1000 N/mm2. Assuming modular ratio as 10, the stress (N/mm2) in concrete is-A-11B-9C-7D-5-B-9

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B 9 Using modular ratio area of tendons can be converted to equivalent concrete area. (Es/Ec=10) i.e (Ac/As =10)i.e Ac = 500 * 10 = 5000 mm2, Total area of concrete = 5000+ (200*250) mm2 = 55000 mm2. Total Stress in concrete = P/55000 = (Area of Tendons * Prestress)/55000 = (500*1000)/55000 = 9.09.

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A pre-tensioned concrete member of section 200 mm x 250 mm contains tendons of area 500 mm² at centre of gravity of the section. The prestress in the tendons is 1000 N/mm². Assuming modular ratio as 10, the stress (N/mm²) in concrete is

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A pre-tensioned concrete member of section 200 mm x 250 mm contains tendons of area 500 mm2 at centre of gravity of the section. The prestress in the tendons is 1000 N/mm2. Assuming modular ratio as 10, the stress (N/mm2) in concrete is

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A pre-tensioned concrete member of section 200 mm x 250 mm contains tendons of area 500 mm² at centre of gravity of the section. The prestress in the tendons is 1000 N/mm². Assuming modular ratio as 10, the stress (N/mm²) in concrete is

For help Students Orientation
Mcqs Questions