Design of Reinforced Concrete Structures
Model Questions
Unit 5:
1. Design an isolated Rectangular footing for the
column of 300mm x 400mm size carrying capacity of 800KN taking safe bearing
capacity of the soil as 200KN/m2. Use M20 concrete and Fe 415 steel
2. Design an isolated Square footing for the
column of 300mm x 300mm size carrying capacity of 800KN taking safe bearing
capacity of the soil as 200KN/m2. Use M20 concrete and Fe 415 steel.
3. Design an isolated Square footing for the
column of 300mm dia. carrying capacity of 800KN taking safe bearing capacity of
the soil as 200KN/m2. Use M20 concrete and Fe 415 steel
4. Design a combined Rectangular footing for
column of 300mm x 300mm size carrying capacity of 500KN and 800KN. Spacing
between Columns is 3m. Safe bearing capacity of the soil as 200KN/m2.
Width is limited to 1.5m. Use M20 concrete and Fe 415 steel
Unit 6:
1.
Design a Square column 300mm x 300mm size to
carry a factored axial load of 800 KN and 80KN-M moment. Use M20 concrete and
Fe-415 steel. Show the details of reinforcement.
2. Design a Circular column to carry a factored
axial load of 800 KN. Use M20 concrete and Fe-415 steel. Show the details of
reinforcement
3.
Design a Square column 300mmx300mm size to
carry a factored axial load of 800 KN. Use M20 concrete and Fe-415 steel. Show
the details of reinforcement.
4.
Design a Rectangular column of 300mm x 450mm to
carry a factored axial load of 800 KN. Use M20 concrete and Fe-415 steel. Show
the details of reinforcement.
Unit 7:
1. A rectangular simply
supported beam of 300mm x 450mm size of 5m span is provided with 4 Nos of 20mm
dia. Steel Bars. Check for Deflection. Use M20 & Fe415
2.
Explain deflection limits in Beams and Slabs as
per IS: 456-2000
3.
A
rectangular Cantilever beam of 300mm x 300mm size of 2m span is provided with 3
Nos of 20mm dia. Steel Bars. Check for Deflection. Use M20 & Fe415.
4. Explain Cracking in structural concrete members?
Unit 8:
1. Design
Doglegged Staircase for a room of height 3.60m. Width of stairs is 1.50m. Take
live load 4 KN/m2. Assume suitable Thread and Rise. Use M20 & Fe415.
2.
Design
one flight of dog legged stair case supported on beams of 300m wide. No. of
steps are 12. Tread is 300mm. Rise is 150mm. Live load 5 KN/m2. Use M20
& Fe415.
3. Explain various types
of staircases with plan and sections along with steel reinforcement details
4.
Design a Cantilever Portico of span 5m and 6m
long. Use M20 & Fe415
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