The aim is to study the methods of calculation of fire protection of steel structures. The problem with this study is that for intumescent coatings, as such, there are no exact methods of calculation. The paper explored the applicability of the calculation for the plate materials to intumescent paints. The results are compared with experimental data producers. Conclusions about the applicability of this technique, the range of use and errors.

• Abstract
• Introduction
• Chapter 1. Ways of fire protection of constructions
  • 1.1. Classification of buildings and structures according to fire danger
  • 1.2. Fire safety materials
  • 1.3. Principle of calculating the fire protection
• Chapter 2. Description of calculation
  • 1.1. Calculation of the load bearing capacity and stability
  • 1.2. Calculation of the fire-retardant treatment
  • 1.3. Material used in calculation
  • 1.4. Calculation example
  • 1.5. Intumescent coatings calculation problem
• Chapter 3. Calculation of intumescent coating
  • 1.1. Calculation
  • 1.2. Materials used in calculation
  • 1.3. Calculation example
  • 1.4. Results of calculation for Nullifire
  • 1.5. Results of calculation for Thermobarrier
  • 1.6. Conclusions based on the results of calculations
  • 1.7. Economic efficiency of intumescent coatings
• Conclusion
• References