JUSTIFICATION OF THE REQUIRED FIRE RESISTANCE LIMITS FOR BEARING STRUCTURES OF BRIDGEWORKS

Abstract

The method for substantiating the design solutions of bridgeworks in terms of fire resistance is proposed. The use of regular thermal mode is the basis of the method. The proposed method makes it possible to perform calculations without using high-performance computer tools. The necessity to improve methods for justifying fire resistance limits is substantiated. A brief description of existing methods and the example of calculation are given.

Keywords

• fire resistance
• fire resistance limit
• fire protection of metal structures
• calculation methods
• bridgework
• regular thermal mode