Slab Design Challenge Q3

What are the key factors to consider in the design of a one-way slab?

• Color of the slab

• Weather conditions

• span length, and support conditions.

• Number of windows in the building

Explain the difference between one-way slab design and two-way slab design.

• One-way slab design distributes the load in one direction, while two-way slab design distributes the load in both directions.

• One-way slab design is used for shorter spans, while two-way slab design is used for longer spans.

• One-way slab design distributes the load in both directions, while two-way slab design distributes the load in one direction.

• One-way slab design is used when the ratio of longer span to shorter span is less than or equal to 2, while two-way slab design is used when the ratio is greater than 2.

How is load distributed in slabs? Provide an example.

• Load in slabs is distributed through thermal action, with the load being transferred to the supporting pillars and footings.

• Load in slabs is distributed through gravitational action, with the load being transferred to the supporting walls and foundation.

• Load in slabs is distributed through magnetic action, with the load being transferred to the supporting beams and columns.

• Load in slabs is distributed through flexural action, with the load being transferred to the supporting beams and columns.

What methods can be used to control deflection in slabs?

• Using thinner materials

• increasing the depth of the slab, adding reinforcement

• Providing inadequate support and restraint at the edges

• Removing all reinforcement

Calculate the bending moment for a slab with a uniformly distributed load of 5 kN/m and a span of 6 meters.

• The bending moment for the given slab is 60 kNm.

• The bending moment for the given slab is 22.5 kNm.

• The bending moment for the given slab is 30 kNm.

• The bending moment for the given slab is 10 kNm.

Compare the load distribution in a one-way slab and a two-way slab under similar loading conditions.

• In a one-way slab, the load distribution is primarily upward, while in a two-way slab, the load is distributed downward.

• In a one-way slab, the load distribution is primarily in both directions, while in a two-way slab, the load is distributed in one direction.

• In a one-way slab, the load distribution is primarily in one direction, while in a two-way slab, the load is distributed in both directions.

• In a one-way slab, the load distribution is primarily in a circular pattern, while in a two-way slab, the load is distributed in a linear pattern.

Explain the concept of effective span in slab design.

• The effective span in slab design is the distance between the centers of supports used to calculate bending moment and deflection.

• The effective span in slab design is the distance between the supports used to calculate the total load on the slab

• The effective span in slab design is the distance between the top and bottom surfaces of the slab

• The effective span in slab design is the thickness of the slab

Discuss the importance of deflection control in slab design and its impact on the overall structure.

• Deflection control in slab design is not important as it has no impact on the overall structure

• Deflection control in slab design only impacts the aesthetics of the building

• Excessive deflection in slab design is beneficial for the overall structure

• It impacts the overall structure by ensuring the stability, serviceability, and durability of the building.

What are the advantages of using post-tensioned slabs in building construction?

• Post-tensioned slabs are more prone to cracking compared to traditional slabs

• Post-tensioned slabs allow for longer spans and thinner slabs, resulting in reduced floor-to-floor height

• Post-tensioned slabs have higher construction costs compared to traditional slabs

• Post-tensioned slabs have lower load-bearing capacity compared to traditional slabs

In which Direction main reinforcement will be placed if the x-direction is shorter length and y-direction is longer (One way slab)

Answer explanation