👉 INTERCON Construction Chemicals 

● Concrete Admixtures
● Bonding Agents
● Waterproofings
● Wall Putty, Prime Coat
● Concrete Repair Mortar
● Floor hardener, Epoxy
● Grout, Self-level mortar
● Quartz paint, Contextra
● Tile Adhesive & Tile Joint Fillers 
● Geotextiles and other construction chemicals and materials

☎️ Tel: 0961955555

🔹 Address 1: Signal road, around
Dinberwa Hospital

🔹 Addres 2: Wellosefer, Infront of
Dani Plaza

👉What Do You Think The Cause Of The Failure

@etconp

👉The failure of the concrete staircase is primarily caused by 
improper or insufficient steel reinforcement and poor structural design and execution at the connection point with the upper floor slab. 

🚧Details of the Failure

💫Lack of Proper Anchorag:

⏺The image and associated information indicate a critical mistake where the main reinforcement bars of the staircase were not properly anchored into the landing beam or slab above with adequate development length or proper bends (hooks). Instead, they appear to have been cut short or installed incorrectly.

💫Missing or Incorrect Negative Reinforcement:

⏺The diagrams in the image highlight the need for "top" or negative reinforcement bars extending from the top of the stair into the upper slab to handle the tension forces that occur at this connection point when the stair is loaded.
This was likely omitted or installed incorrectly in the failed structure.

💫Structural Weakness:

⏺A staircase is a major structural element that carries significant loads.
⏺Without correct and continuous reinforcement into the supporting structure, the connection point becomes a weak link, leading to a bond failure and collapse as seen in the image.

💫Substandard Workmanship:

⏺This type of failure often results from trying to cut costs, using unqualified labor, or failing to follow approved engineering drawings and building codes. 

@etconp

👉 INTERCON Construction Chemicals 

● Concrete Admixtures
● Bonding Agents
● Waterproofings
● Wall Putty, Prime Coat
● Concrete Repair Mortar
● Floor hardener, Epoxy
● Grout, Self-level mortar
● Quartz paint, Contextra
● Tile Adhesive & Tile Joint Fillers 
● Geotextiles and other construction chemicals and materials

☎️ Tel: 0961955555

🔹 Address 1: Signal road, around
Dinberwa Hospital

🔹 Addres 2: Wellosefer, Infront of
Dani Plaza

👉The main components of a staircase include the treads (the horizontal steps), risers (the vertical boards between steps), stringers (the side supports), handrails and balusters (the safety railing and vertical posts), and landings (the flat platforms for rest or direction changes).

🎲The main parts can be grouped into the steps, the structural supports, and the safety features. 

🚧Step components

⏺Tread: The flat, horizontal part of the step where you place your foot.
⏺Riser: The vertical section between two treads that sets the height of the step.
⏺Nosing: The front edge of the tread that extends slightly over the riser.
⏺Curtail Step: An ornamental step at the very bottom of a staircase, often with a rounded end. 

🚧Structural components

⏺Stringer: The inclined board or panel that runs along the side or center of the stairs, supporting the treads and risers.
⏺Newel Post: A larger, sturdy post located at the beginning, end, or bends of a staircase that supports the handrail.
⏺Landing: A wide, flat platform at the top or bottom of a flight of stairs or between flights, used for rest or to change direction. 

⭐️Safety and finishing components

⏺Handrail: A long bar, typically attached to a wall or supported by newel posts and balusters, that provides support for users.
⏺Baluster: The vertical posts or spindles that are placed between the handrail and the tread or base rail to prevent falls and fill the gap in the balustrade.
⏺Balustrade: The entire system of handrail, balusters, and base rail that runs along the open side of the stairs.
⏺Newel Cap: The ornamental top piece of a newel post. 

@etconp