Reinforced concrete design
Previous year question paper with solutions for Reinforced concrete design May-2017
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Question paper 1
SECTION-A
Q1. (a) Fill in blanks-
i. Plain cement concrete is …………. in tension.
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Read moreii. Unit weight of RCC is …………….
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Read moreiii. In limit state of collapse, partial safety factor for concrete is ………….
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Read moreiv. Grade of steel is …………. proportional to shear strength.
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Read morev. Diagonal cracks are also known as …………..
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Read morevi. In singly reinforced beams ………….. zone is below the neutral axis.
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Read morevii. The minimum clear cover to reinforcement of slab shall not be less than …………….
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Read moreviii. The maximum strain in concrete at the outer most compression fibre is taken as …………..
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Read moreix. The outward bending of long column is known as …………
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Read morex. Single wires used as steel reinforcement are called as ………….
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Read moreQ1. (b) State True or False.
i. Fly ash based cement is known as ordinary Portland cement.
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ii. Limit state method results in larger sections.
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iii. Higher the grade of steel, lesser will be shear strength.
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iv. In doubly reinforced beams, the main steel is provided in compression zone.
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v. When corners of slab are held down, the slab is known as restrained slab.
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SECTION-B
Q.2 Attempt any SIX questions:
i. Explain the difference between one way slab and two way slab.
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Read moreii. Explain why minimum shear reinforcement is provided?
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Read moreiii. Why HYSD bars are preferred over mild steel bars?
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Read moreiv. Differentiate between WSM and LSM.
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Read morev. Why uses of over reinforced sections are avoided in RCC construction?
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Read morevi. Why doubly reinforced beams are preferred over singly reinforced beams?
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vii. Write down the assumptions made in limit state of collapse in flexure.
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Read moreviii. Why long columns have less load carrying capacity as compared to short columns?
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Read moreix. Enlist the advantages of pre-stressed concrete over RCC
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Read morex. Explain modular ratio and lever arm
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Read moreSECTION-C
Q.3 Attempt any THREE questions: 3x10=30
i. A beam 200mm x 200mm effective is required to resist a bending moment of 20kNm. Find steel required, if M20 concrete and Fe500 steel grade is used. Take d' = 40mm.
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ii. The x-section of an RCC beam is required to resist a bending moment of 68kNm.Find the dimensions of beam & steel required. Take b=d/2. Use M20 concrete and Fe250 steel. Take effective cover as 50mm.
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iii. Design a simply supported RCC slab to carry a factored load of 1500N/m2 inclusive of its self weight, on an effective span of 3.1m. Use M20 concrete and Fe415 steel. Assume any other missing data.
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iv. Design a square column subjected to an ultimate axial load of 1500kN. Use M20 concrete and Fe415 steel.
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v. Explain the various energy losses in pre-stressing in detail.
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