In a pre-stressed concrete beam section shown in the figure, the net loss is 10% and the final pressurising force applied at X is 750 kN. The initial fiber stresses (in N/mm2) at the top and bottom of the beam were

In a pre-stressed concrete beam section shown in the figure, the net l

1.	In a pre-stressed concrete beam section shown in the figure, the net loss is 10% and the final pressurising force applied at X is 750 kN. The initial fiber stresses (in N/mm2) at the top and bottom of the beam were
A.	4.166 and 20.833
B.	-4.166 and -20.833
C.	4.166 and -20.833
D.	-4.166 and 20.833
Answer» E.

Discussion

No Comment Found

Related MCQs

In prestressed concrete members steel is under
During tensioning of prestressing tendons the breakage of wires in any one prestressed concrete member shall not exceed
A rectangular concrete beam of 250 mm wide and 600 mm deep is pre-stressed by means of four 10 mm diameter high tensile bars located at 200 mm from the soffit of the beam. If the effective stress in the wires is 500 N/mm2. What is maximum bending moment that can be applied to the section WITHOUT causing tension at soffit of the beam?
Precast concrete tiles with marble chips on the surface are known as:
Long span concrete bridges are usually constructed as a
For pre-stressed structural elements, high strength concrete is used primarily because
For a prestressed beam, if all the tendons of are tensioned simultaneously in a smooth duct having zero coefficient of friction then which of the following statement comes true regarding loss recorded in prestress while post tensioning?
Consider the following statements:Correct estimation of loss of prestress is required for assessing1. The serviceability behaviour of a PSC beam.2. The ultimate shear resistance of PSC beam.3. The ultimate moment of resistance of PSC beam.Which of the above statements is/are correct?
On the areas immediately behind external anchorage, the permissible unit bearing stress on the concrete, after accounting for losses due to relaxation of steel, elastic shortening, and seating of anchorages, shall not exceed ______.
IS : 1343 – 1980 limits the minimum characteristic strength of pre-stressed concrete for post-tensioned work and pretension work is

In a pre-stressed concrete beam section shown in the figure, the net loss is 10% and the final pressurising force applied at X is 750 kN. The initial fiber stresses (in N/mm2) at the top and bottom of the beam were

Discussion

No Comment Found

Related MCQs

Reply to Comment