RCC Dog-Legged Staircase Design Drawing | Plan, Section and Reinforcement Details

Design and Detailed Drawing of an RCC Dog-Legged Staircase | Plan, Section, and Reinforcement Details

It is worth noting that the dog-legged staircase is one of the most commonly used types of staircases in residential and commercial buildings. It consists of two flights running in opposite directions, separated by a landing. This design saves space and facilitates easy movement between floors.

Overview of the Staircase Drawing

This image displays a comprehensive detailed drawing of an RCC dog-legged staircase, including the front elevation, plan view, section details, reinforcement arrangement, and dimensional information.

Staircase Details
Type: Dog-legged staircase
Stair width: 4'-6"
Landing width: 4'-6"
Riser height: 6"
Tread width: 10"
Total number of risers: 22
Floor-to-floor height: 11'-0"
Total stair length: 13'-6"

Details of the Front Staircase

Viewed from the front, two parallel flights of stairs are visible, connected by a central landing. Both flights have an equal number of steps, ensuring easy and safe movement between floors.

Key Features:

Symmetrical staircase arrangement
Comfortable riser and tread dimensions
Adequate width for residential use
Space-efficient design

Staircase Plan

The staircase plan illustrates the direction of movement and the configuration of the stairs.
Key features of the plan:

Clear indication of the "UP" direction.
Placement of a landing between the flights of stairs.
Balanced distribution of the stairs.
Compact layout suitable for limited floor space.

Staircase Section Details

The sectional view shows the vertical profile of the staircase.

Section Information:

Floor level at the bottom.
Landing level at the intermediate height.
Slab level at the top floor.
Continuous RCC waist slab supporting the stairs.
Proper structural connection between flights and landings.

Reinforcement Details

This drawing also includes reinforcement details for the RCC stairs.

Reinforcement Arrangement:

Main steel bars: 10 mm diameter @ 6" center-to-center.
Distribution steel bars: 8 mm diameter @ 6" center-to-center.
Reinforcement is placed along the slope of the stair slab.
Distribution bars are placed perpendicular to the main bars.

Proper reinforcement ensures the structure's strength, durability, and load-bearing capacity.

Benefits of a winding staircase

Occupies less space.
Cost-effective and easy to construct.
Provides comfortable movement between floors.
Suitable for both residential and commercial buildings.
Ensures privacy by blocking direct visibility between floors.

Conclusion

The drawing presented here provides the complete plan, sections, and reinforcement details necessary for the construction of an RCC dog-legged staircase. Featuring a 4'-6" wide staircase, 6" risers, 10" treads, and an intermediate landing, this design offers a safe, practical, and space-saving solution for multi-story buildings.