Protecting building from fire is of life, financial and national interests safety aspects and the most necessary requirement in design and execution of buildings.

Fire safety rules include several things as follows

Setting the specifications of exit routes

Designing systems for discovery, notification and fire suppression

Controlling the building materials

Controlling the smokes

Protecting the metal components of the building against fire

The critical temperature of a steel component is the temperature at which if the steel materials of a structural component reach, that component will no longer be able to tolerate the incoming loads. During cellulose fire, as a result of the high heat created, the mechanical properties of the steel decrease in proportion to the increase in temperature, and as a result, the strength of the steel component decreases up to 80%.

The methods for protecting metal components

According to the requirement and demand for protecting steel structures in accordance with building regulations, according to the conditions of the building, several methods have been considered to protect the structure, which common types of these protective systems are presented below