Our Specialties
Protecting load-bearing concrete elements from fire is critical to maintaining the stability and safety of the structure.
Concrete, despite being a durable material, may weaken significantly when exposed to high heat.
During a fire, the high temperatures cause the water trapped in the concrete to evaporate, leading to the formation of internal cracks and a reduction in the compressive strength of the material. This dangerous phenomenon is called spalling in Hebrew.
In addition, the reinforcing steel bars cast within the concrete lose their strength at high temperatures, which further weakens the load-bearing element and may cause it to collapse.
The goal:
Protecting the load-bearing concrete elements from the heat of combustion in order to allow them to bear the vertical structural loads for the period of time defined in the standard.
Method:
Similar to protecting load-bearing steel elements, providing thermal insulation to load-bearing concrete elements will protect the concrete from the heat of combustion and prevent corrosion.
Providing adequate thermal insulation will allow the building's frame to bear the loads for at least an hour and up to 4 hours in tall, sensitive buildings.
The durability of the building frame is defined by the planning and construction regulations in combination with the NFPA 5000 standard.
Skeleton protection is carried out in four different ways:
The first
The second
The third
The fourth
Mandatory standards:
Will be carried out in accordance with the European standard EN 13381.
Design protection using an insulated cementitious system
EN 13381
There is no Israeli standard, it is common to use the European standard EN 13381.
למערכת צבע ייעודי
EN 13381
Will be designed according to European standard EN 13381
Cladding the element with dedicated fire-resistant panels
EN 13381
Protecting concrete elements
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Recommendations
Our company performed the engineering design and execution management for upgrading the fire resistance of the load-bearing concrete elements in the lower half of the "Davidoff Cancer Center" building at Beilinson Hospital.
We were very impressed by the fruitful collaboration, the precise and sensitive management that combined exceptionally high engineering capabilities.
Unique engineering solutions in the field of passive fire protection
I would like to thank you for your cooperation and professional assistance over the years in the various projects you have carried out at Clalit institutions, as well as in the ad hoc consulting and professional lectures you have given to various professional forums at Clalit.
Your professional knowledge and experience are evident and have contributed greatly to the advancement of the field of fire safety.
Oren Avshalom
Director of the Safety and Hygiene Engineering Department
שירותי בריאות כללית
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