Civil Engineering
GATE CE Concrete Structures PYQs
Build your understanding with focused practice from past exam papers.
Questions 41–44 of 44. Imported answers require independent review unless marked reviewed.
Question 41
Open questionCENAT2 marksNeeds review
An RCC beam of rectangular cross section has factored shear of 200 kN at its critical section. Its width b is 250 mm and effective depth d is 350 mm. Assume design shear strength
of concrete as 0.62 N/mm² and maximum allowable shear stress
in concrete as 2.8 N/mm². If two legged 10 mm diameter vertical stirrups of Fe50 grade steel are used, then the required spacing (in cm, up to one decimal place) as per limit state method will be _____Log in to check the answer
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Open questionCENAT2 marksNeeds review
A 6 m long simply-supported beam is prestressed as shown in the figure.
The beam carries a uniformly distributed load of 6 kN/m over its entire span. If the effective flexural rigidity EI = 2×10^4 kN m² and the effective prestressing force is 200 kN, the net increase in length of the prestressing cable (in mm, up to two decimal places) is ______
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 38
Open questionCENAT2 marksNeeds review
A pre-tensioned rectangular concrete beam 150 mm wide and 300 mm depth is prestressed with three straight tendons, each having a cross-sectional area of 50 mm², to an initial stress of 1200 N/mm². The tendons are located at 100 mm from the soffit of the beam. If the modular ratio is 6, the loss of prestressing force (in kN, up to one decimal place) due to the elastic deformation of concrete only is
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Open questionCE-2NAT2 marksNeeds review
A simply supported rectangular concrete beam of span 8 m has to be prestressed with a force of 1600 kN. The tendon is of parabolic profile having zero eccentricity at the supports. The beam has to carry an external uniformly distributed load of intensity 30 kN/m. Neglecting the self-weight of the beam, the maximum dip (in meters, up to two decimal places) of the tendon at the mid-span to balance the external load should be
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