Popis: |
In conventional prescriptive design, the fire performance of load-bearing structural elements is regularly defined in the temperature domain. When a more comprehensive structural behavior analysis is performed in the strength domain, the analysis of the temperature domain remains as a first step of the process. As described in Chap. 4 of the current handbook, fire is a combination of complex physical phenomena. The thermal boundary conditions, and to some extent heat transfer within structural elements (i.e., solid phase), require some level of understanding and perhaps careful simplification. Understanding the complex coupling between gas and solid phase is commonly avoided and the fire is treated as a thermal boundary condition. |