Specification of materials Data for Fire Safety Calculations based on ENV 1992-1-2: European Concrete Standards in Practice

The part 1-2 of the Eurocode on Concrete deals with Structural Fire Design.In chapter 3, which is partly written by the author of this paper, some data are given for the development of a few material parameters at high temperatures. These data are intended to represent the worst possible concrete in Europe based on siliceous aggregates, and they are only valid until the time of maximum gas temperature of a Standard fire according to ISO 834.In chapter 4 design procedures are given. These consist of 3 subchapters.Chapter 4.2 provides some tables of which cover thickness may be adjusted according to experience form tests on structural specimens based on German siliceous concrete subjected to Standard fire exposure until the time of maximum gas temperature.Chapter 4.3, which is written by the author of this paper, provides a simplified calculation method by means of which the load bearing capacity of constructions of any concrete exposed to any time of any fire exposure can be calculated.Chapter 4.4 provides information on what should be observed if more general calculation methods are used.Annex A provides some additional information on materials data. This chapter is not a part of the code and not subjected to voting. The chapter is formed in order to present some results of the work, which has been made during the development of the code, especially when it was intended to be an EEC code before the matter was handed over to CEN. Some of the data given in it are doubtful, and some are in contradiction to the data given in the code.