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Fire protection of steel frame elements in buildings is critical to maintaining the stability of the structure and the safety of its occupants. Steel is a strong and durable material, but at high temperatures it loses its strength. Already at a temperature of 400 degrees Celsius, steel begins to lose its strength, and at a temperature of 550 degrees Celsius it may lose up to half of its original strength. Under typical fire conditions, these temperatures can develop within a few minutes, which explains the urgent need for effective fire protection.
The goal:
Fire protection of load-bearing steel elements allows for a safe evacuation time for building occupants in the event of a fire and prevents the collapse of the building, thereby reducing the scope of potential damage. In addition, fire protection enables compliance with fire safety standards and legal requirements, which are essential for any commercial or public building.
Method:
The protection of the steel elements that constitute the structure's skeleton that carries the vertical loads is carried out by cladding, an external shell that thermally insulates the steel during a fire. Providing adequate thermal insulation will allow the structure's skeleton to bear the loads for at least one hour and up to 4 hours in tall, sensitive structures.
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 three different ways:
The first - an insulated cement system.
The second – a dedicated paint system that expands in heat and insulates the steel.
The third – a box-shaped wrapping made of standard, dedicated fire-resistant panels.
Mandatory standards:
The standards that guide the planning and implementation of skeleton protection for the three different methods are:
Will be carried out in accordance with the guidelines of the 1733 Law
Design protection using an insulated cementitious system
T.I. 1733
Will be designed according to European standard EN 13381
Or in accordance with the British ASFP guidelines found in the "Yellow Book"
or the American standard UL 263
Box-shaped packaging made of special fire-resistant panels
EN 13381
There is no Israeli standard, it is common to use the European standard EN 13381.
Or in accordance with the British ASFP guidelines found in the "Yellow Book"
or the American standard UL 263
Dedicated color system
EN 13381
Shielding steel elements bearing
Customers
Recommendations
I would like to personally thank you for the fruitful and professional cooperation, which included providing a professional and creative solution to protecting complicated elements under complex access conditions, across hundreds of tons of steel.
Cooperation in the field of protecting load-bearing steel structures
MALMA
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