Steel Structure Parts are widely used in the construction and industrial fields, but due to the poor fire resistance of steel itself, the strength will drop rapidly at high temperatures, so it is very important to improve the fire resistance of Steel Structure Parts.
A common method is to apply fire retardant coatings. Fire retardant coatings can be divided into intumescent and non-intumescent types. Intumescent fire retardant coatings will expand to form an insulation layer when exposed to fire, preventing heat from being transferred to Steel Structure Parts. Non-intumescent fire retardant coatings play a fire retardant role through their own low thermal conductivity and chemical stability. When choosing fire retardant coatings, it is necessary to consider its performance indicators such as fire resistance limit, bonding strength, weather resistance, as well as the convenience and cost of construction.
Using fireproof boards is also an effective way. Fireproof boards are usually made of materials such as vermiculite boards and calcium silicate boards, and can be fixed to the surface of Steel Structure Parts by bolts or welding. Fireproof boards can block heat for a certain period of time, buying time for personnel evacuation and fire extinguishing.
Filling the interior of Steel Structure Parts with fireproof materials is also one of the ways to improve fire resistance. For example, inorganic fiber materials such as rock wool and glass wool can be filled. These materials have good thermal insulation properties and can slow down the transfer of heat.
In addition, Steel Structure Parts can also be water-cooled. By setting water pipes inside the components, water cooling can be passed through when a fire occurs to reduce the temperature of Steel Structure Parts and maintain their strength. However, this method may be limited by factors such as water sources and pipeline layout in practical applications.
Reasonable structural design can also improve the fire resistance of Steel Structure Parts. For example, increasing the cross-sectional size of components, setting fire isolation zones, and optimizing the connection methods of components can reduce the impact of fire on Steel Structure Parts.
In addition, strengthening daily fire prevention management and maintenance cannot be ignored. Regularly check the integrity of fire-retardant coatings and fire-retardant materials to ensure that they can play their due role when a fire occurs.
In actual projects, the above methods are often used in combination to improve the fire resistance of Steel Structure Parts. For example, the Steel Structure Parts in a large commercial building are not only coated with high-performance fire-retardant coatings, but also installed with fire-proof panels at key locations, and the fire isolation and cooling measures of the structure are fully considered during the design. After rigorous fire tests and actual application verification, these measures have effectively improved the fire resistance of Steel Structure Parts and ensured the safety of the building.
In short, improving the fire resistance of Steel Structure Parts requires comprehensive consideration of multiple aspects such as material selection, structural design, construction technology, and daily maintenance, and selecting the most appropriate fire protection solution based on specific usage scenarios and requirements.
