Two-Way Slab Deflection Fundamentals
A two-way slab is a structural element that bends significantly in two directions when subjected to loads. Its deflection pattern is complex, influenced by both its spans.
Primary Factor in Slab Deflection
The deflection of a two-way slab is primarily governed by its short span. Here's why:
- Slabs bend more easily along shorter distances.
- The shorter span dictates the primary bending direction and magnitude.
- While the long span influences the overall behavior, the maximum deflection is more sensitive to the shorter dimension.
Therefore, calculations and design considerations for two-way slab deflection predominantly focus on the properties and dimensions related to the short span.
Important Questions from Design of Structural Elements
A simply supported RCC beam of span 4 m is supporting a brick wall over its entire span. The brick wall is 250 mm thick and 2 m high. The RCC beam has a depth of 600 mm and width of 250 mm. The density of brick masonry and RCC can be assumed as 18 KN/m³ and 25 KN/m³ respectively. Considering the load of the wall and self-weight of the RCC beam, the maximum bending moment in the beam (in KN-m) will be ____________ [rounded off to two decimal places].
A simply supported beam having effective span of 5 meter is carrying a centrally concentrated load of 16 kN. The maximum bending moment in the beam in kN-m is _______________
Area of tensile steel per meter width of a reinforced concrete slab is 335 sq mm. If 8 mm rods are used as reinforcement, then centre to centre spacing of the reinforcement in mm is _______________
- The maximum bending moment ($kNm$) in a simply supported beam of 8 $m$ span subjected to a uniformly distributed load of 20 $kN/m$ (inclusive of its self-weight) over the entire span is
- Which of the following is NOT a mechanism of bond resistance in reinforced concrete?
