- Author
- Olesen, F. B.
- Title
- Fire Engineering Design of Timber Structures.
- Coporate
- Aalborg Univ., Sweden
- Book or Conf
- Modern Building Materials, 3rd International Conference. May 1993, Vilnius, Sweden, 1993
- Keywords
- timber | structures | charring | fire tests | structural design | exposure
- Abstract
- In Eurocode 5: Design of Timber Structures (still in preparation Spring 1993) is included a part 10: Structural Fire Design. Although this part of the code, as is the case with the Eurocode-complex in general, is primarily based on the concept of Standard fire exposure, according to ISO 834, it also gives principles for a more differentiated structural fire design based on the concept of "natural" or "parametric" fire exposure, i.e., a fire exposure including both a period of increasing temperature and a subsequent period of cooling, determined by the fire load, the ventilation properties and the thermal properties of the fire compartments as the governing parameters. The last-mentioned concept of structural fire design, of course, demands more differentiated rules and approximations with respect to charring rates, material properties and structural response, than the simplified concept of standard fire design. Some of the background material for this are wellknown facts, but due to the lack of sufficient information, supplementary investigations have to some extent been carried out in the recent years. Some of this prenormative research has been made at The University of Aalborg, where a series of full-scale tests with parametric fire exposure on loaded glulam beams were performed in the structural fire laboratory.