Structural Design & Drawing (RCC-I) (CE-601) - Important Questions

Explain under-reinforced, over-reinforced and balanced sections as per limit state method of RCC design.

Draw cross-section of singly reinforced rectangular beam showing strain and stress distribution diagrams.

List and explain the assumptions made in the limit state design of compression members.

Define characteristic load, characteristic strength, and partial safety factor.

Describe the limit state stress block and derive its stress block parameters from first principles.

Design a singly reinforced rectangular beam section for flexure and shear using working stress method and sketch reinforcement details.

Compare Working Stress Method and Limit State Design of RCC structures with examples.

Explain the balanced section as per working stress method and limit state method.

Explain approaches for control of deflection in bending members as per IS 456 and measures for reducing deflection.

Define limit state and list the different limit states considered in RCC design.

Explain limit state design for serviceability.

Write short note on lever arm and moment of resistance.

Explain the critical sections for design shear as per IS 456 with sketches.

Determine the ultimate moment of resistance of a singly reinforced T-beam section given flange, rib dimensions, steel area and material grades.

Calculate the ultimate moment of resistance of a doubly reinforced rectangular beam section given width, effective depth, compression and tension steel and material grades.

For an end L-beam in a hall system, calculate $X_u$, $C_u$, $T_u$, lever arm, $M_R$ at collapse and the safe superimposed load on the slab excluding slab self-weight.

Design a lap splice for a reinforced concrete tension member joining dissimilar diameter rebars.

Explain the various bond failure mechanisms in reinforced concrete.

Explain approaches for control of deflection in flexural members as per IS 456 and measures for reducing deflection.

Determine the area of tension (and compression) steel required for a rectangular beam subjected to a given factored bending moment.

Design reinforcement for a rectangular RC beam section subjected to combined ultimate torsion, shear force and bending moment, and sketch detailing.

Design reinforcement for a beam section subjected to combined ultimate bending moment, shear force and twisting moment, and sketch reinforcement details.

Design a simply supported beam for shear by limit state method for given span and dead and live UDLs, and sketch reinforcement details.

Explain with sketch the force components participating in shear transfer mechanism at a flexural-shear crack in an RC beam.

Design a one-way simply supported slab for a hall with ~3 m short span as roof/floor for given live load and floor finishes, using given concrete grade and steel grade, including detailing.

Design a cantilever slab for an overhang of $1.2\,m$. The imposed load on slab consists of $1\,KN/m^2$ of live load and weight of finishing is $800\,N/m^2$. Use M20 concrete and Fe 415 steel. Assume overall Depth $= 150\,mm$.

Design a simply supported two-way RC slab with corners free to lift, including reinforcement detailing sketch.

Design a simply supported roof slab for a room $8\text{m} \times 3.5\text{m}$ clear in size with wall thickness $230\text{ mm}$. If the super imposed load is $5\text{ kN/m}^2$ use M20 concrete and Fe415 steel.

Design a restrained two-way RC slab with corners held down, including reinforcement detailing sketch.

Write down the design steps with formulations and checks for a two-way slab.

Design longitudinal reinforcement (with detailing sketch) for a column subjected to factored axial load with biaxial moments.

Design an isolated rectangular / stepped footing for a rectangular column carrying axial load given SBC, concrete and steel grades.

Design a circular column of given diameter to carry a given factored axial load using (a) helical reinforcement and (b) hoop / lateral-tie reinforcement with given concrete and steel grades.

List the steps involved in designing strap footings.

Design an isolated square footing for a column carrying axial load given SBC, concrete and steel grades.

Determine longitudinal and transverse reinforcement for a column subjected to factored axial load with uniaxial bending moment.

List the steps involved in the design of combined footings.

Design a short circular column of given length with both ends fully restrained to carry a given axial load using (i) lateral ties and (ii) helical reinforcement.

Explain the different types of footing with neat sketches:

Design a dog-legged staircase supported on walls/masonry at the landing ends (longitudinal spanning) in M20 concrete and Fe415 steel, including reinforcement detailing sketch.

Design a staircase flight with mid landing cantilevered out, including reinforcement detailing sketch.

Design stairs supported on a wall on one side and a stringer beam on the other side.