Staircase with landings|www.BuildingHow.com

VOLUME A
The art of construction and detailing
Introduction
The structural frame
- Introduction
- Structural frame elements
  - Columns
  - Beams
  - Slabs
  - Staircases
  - Foundation
- STRUCTURAL FRAME LOADING
- BEHAVIOR OF THE STRUCTURAL FRAME
  - The behavior and reinforcement of a slab
  - Behavior and reinforcement of beams and columns
Construction methods
- The materials
- The moulds
- Thermal insulation of structural elements
- Concrete
- The steel
- Reinforcement specifications of antiseismic design
- Industrial stirrups - stirrup cages
- Standardized cross-sections of reinforced concrete elements
Reinforcement
- Columns
- Shear walls
- Composite elements
- Beams
- Slabs
- Staircases
- Foundation
Quantity surveying
- Estimation of the concrete’s quantity
- Estimation of the formworks’ quantity
- Estimation of the spacers’ quantity
- Estimation of the reinforcements' quantity
- Total estimation of the materials’ quantities
- Optimization of the reinforcement schedule
- Estimation of the structural frame’s cost
- Electronic exchange of designs - bids - orders
Detailing drawings
- General
- The drawings’ title block
- Carpenter’s drawings
- Steel fixer’s drawings
Tables
- Table 1
- Table 2
- Table 3
Drawings
- Carpenter’s drawings
- Steel fixer’s drawings
Model (exemplary) construction

« Starter bars in staircases Winder staircase »

Staircase with landings

The flights of the orthogonal staircases are not always straight. On the contrary, most of the times they are polylines with successive sloped and horizontal segments. The following exam-ple shows a typical staircase with landings into which most cases are reduced.

When the staircase contributes to the seismic diaphragmatic behavior of the floors (as is the rule), it is recommended to use negative rebars as well [dashed bar (7)]

Notes:

The negative rebars, apart from everything else, help in the proper concreting of the staircase’s sloped flights because they retain the wet concrete in a satisfactory degree.

A good solution in order to cover the needs for (a) distribution rebars of the lower reinforcement, (b) free edges’ hairpin bars and (c) rebar chairs, is to use the unified bars shown at the next figure.

Another solution for the combination of these three requirements is the use of the upper reinforcement’s distribution bars. This solution provides stronger rebar chairs.

« Starter bars in staircases Winder staircase »