💫One-Way Slab(L/B > 2)
💫Two-Way Slab (L/B ≤ 2)
🔰One-Way Slab
Load Transfer: Loads are transferred primarily in one direction (along the shorter span) to the supports.
Support Condition: Supported on two opposite sides (beams or walls).
Reinforcement: Main reinforcement is provided in one direction (shorter span) and distribution reinforcement in the other direction.
Span Ratio: Used when the longer span (L) to shorter span (B) ratio is greater than 2 (L/B > 2).
Thickness: Typically thinner compared to two-way slabs for the same spans.
Applications: Walkways, corridors, narrow rooms, or slabs supported by two parallel beams.
🔰Two-Way Slab
Load Transfer: Loads are transferred in both directions (shorter and longer spans) to the supports.
Support Condition: Supported on all four sides (beams or walls).
Reinforcement: Main reinforcement is provided in both directions (shorter and longer spans).
Span Ratio: Used when the longer span (L) to shorter span (B) ratio is less than or equal to 2 (L/B ≤ 2).
Thickness: Typically thicker than one-way slabs for the same spans.
🔰Applications: Floors in multistorey buildings, parking structures, and flat slabs with supports on all sides.
Key Differences
Aspect One-Way Slab Two-Way Slab
Load Transfer In one direction In two directions
Supports Two opposite sides All four sides
Reinforcement One direction Both directions
Span Ratio (L/B) > 2 ≤ 2
Typical Use Narrow spans Wider spans
The choice between the two depends on the structural requirements, support conditions, and span dimensions.
@etconp
💫Two-Way Slab (L/B ≤ 2)
🔰One-Way Slab
Load Transfer: Loads are transferred primarily in one direction (along the shorter span) to the supports.
Support Condition: Supported on two opposite sides (beams or walls).
Reinforcement: Main reinforcement is provided in one direction (shorter span) and distribution reinforcement in the other direction.
Span Ratio: Used when the longer span (L) to shorter span (B) ratio is greater than 2 (L/B > 2).
Thickness: Typically thinner compared to two-way slabs for the same spans.
Applications: Walkways, corridors, narrow rooms, or slabs supported by two parallel beams.
🔰Two-Way Slab
Load Transfer: Loads are transferred in both directions (shorter and longer spans) to the supports.
Support Condition: Supported on all four sides (beams or walls).
Reinforcement: Main reinforcement is provided in both directions (shorter and longer spans).
Span Ratio: Used when the longer span (L) to shorter span (B) ratio is less than or equal to 2 (L/B ≤ 2).
Thickness: Typically thicker than one-way slabs for the same spans.
🔰Applications: Floors in multistorey buildings, parking structures, and flat slabs with supports on all sides.
Key Differences
Aspect One-Way Slab Two-Way Slab
Load Transfer In one direction In two directions
Supports Two opposite sides All four sides
Reinforcement One direction Both directions
Span Ratio (L/B) > 2 ≤ 2
Typical Use Narrow spans Wider spans
The choice between the two depends on the structural requirements, support conditions, and span dimensions.
@etconp