Hall Ticket No Question Paper Code: ACE009
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
Four Year B.Tech V Semester End Examinations (Regular) November, 2018
Regulation: IARE R16
REINFORCED CONCRETE STRUCTURES DESIGN AND DRAWING
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. Find the ultimate moment and steel required for R/C beam section 200x450mm (effective depth).
Use M20 concrete and Fe415 HYSD steel.
A R/C beam 300x500mm (effective depth) carry factored moment 200kN-m. Find area of steel.
Assume simply supported beam at moderate exposure condition Use M25 concrete Fe415 HYSD
steel
2. Compare the principles of working stress method and limit state design method.
A rectangular beam has breadth b 200 mm, depth d 400 mm. If steel used is Fe 415 and
grade of concrete is M20, find the steel required to carry a factored moment of 120 kNm.
UNIT II
3. Explain the rules for minimum shear reinforcement in limit state design.
Find the ultimate bending moment of rectangular beam 200x400mm with 3nos bars in tension
and 2no,12' bars in compression Assume clear cover top and bottom 40mm.
4. Design Torsion reinforcement of rectangular R/C beam 300x600mm(effective depth) subjected
to ultimate torsion moment100kN-m and factored bending moment200kN.m and factored shear
150kN. Use M20 concrete and Fe415 HYSD steel Detail the steel.
A R/C simply supported beam 300x500mm built into column (500x500mm).The beam is subjected
to moment 100kN.m at support. Design suitable reinforcement and anchorage system and
detail the reinforcement. Assume M20 concrete, Fe415 steel.
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UNIT III
5. Explain the design procedure for One Way Slab in Limit State Design of RCC structures.
Design a simply supported R.C.C. slab for a roof of a hall 4 m x 10 m (inside dimensions) with
230 mm walls all around. Assume a live load of 4 kN/m2 and finish 1 kN/m2. Use grade 25
concrete and Fe 415 steel.
6. Briefly discuss the procedure for design of Two way Simply Supported slab and Two way Restrained
slabs.
Design a R/C slab of 3x5m supported on R/C beams 200x400mm at all four sides. Assume
imposed load 4kN/m2 and use M15, Fe415 HYSD steel and corners free to lift. Detail the
reinforcement (Use limit state method).
UNIT IV
7. Define slender long and short R/C columns. Give the resemblance as per I.S code. Discuss the
design provisions in the above scenario.
Design a C rectangular short column of unsupported length 6 m fixed at both end. Assume
axial load 600kN and use M20 concrete, Fe415 HYSD steel. (Column exposed to medium
atmospheric conditions)
8. Define uni-axial and bi-axial bending in R/C columns. Give an example resembling the location of
columns in R/C framed structure. Discuss the design provisions in the context of both scenarios.

Design a rectangular R/C column with following data Axial load =300kN, Unsupported length=3m,
percentage of steel Use M25 grade Concrete and Fe415 grade steel. Check the minimum
eccentricity of column.
UNIT V
9. Design a isolated footing of column 300x500mm reinforced with 6no- bars with Fe415 grade
steel M25 concrete subjected to factored axial load Pu =1000kN. Assume safe bearing capacity
of soil at depth of 1.2m is 200kN/m2 . Use M25 concrete and Fe 415 grade steel.
Design doglegged stair case of head room 3mx6m for floor height 3m.Assume tread 250mm and
riser 150mm and live load 4kN/m2. Use M20 concrete and Fe415 steel. Detail the reinforcement
of stair slab. Use limit state design (steps are RCC)
10. Explain the calculation of dead loads and effective depths for the staircases with detailed sketches.

Design a stair case of head room 4mx6m for floor height 3.4m. Assume tread 250mm and riser
200mm and live load 4kN/m2. Use M20 concrete and Fe415 steel. Detail the reinforcement of
stair slab. Use limit state design (steps are RCC).
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