N°208. 1991. Fire Design of Concrete Structures in accordance with CEB-FIP Model Code 90.

When at the end of 1982 the CEB General Task Group No . 4 (Fire Design of Concrete Structures) was established , its task was to continue the work al ready carried out by the FIP Commission on Fire Resistance and to present "guide for the fire design of concrete structures". 

In the recent years the work carried out by thi s group was documented in the Bulletins d' Information No . 145 and No . 174 . Although called "Draft Model Codes for Fi re Design of Concrete Structures" , these documents and the present final version al ways provided and provide more background information than necessary for a "Model Code" . This seemed appropriate , as the background of fire design normally can not be regarded as common knowledge for a practicing engineer . Therefore , the present document should not be seen as an append ix to the CIB-F IP MC 90, but as a separate document now based on the design principles of this Model Code 90 . 

In comparison with the Eurocode No .2, Part 10: Structural Fire Design, we re compromises had to be made in order to reach a common agreement, the group found it necessary to point out different approaches , especially where the description of material properties are concerned , in order to show that a final state of the art has not yet total ly been reached . Nevertheless , the design aids given here are suffi ci ent to solve most eng ineering problems in this field. 

With respect to the recent developments in the fi el d of structural safety , now part of MC 90 , the document was enlarged in order to give some guidance in the development of partial safety factors and to justify the recommendations made in th is document . 

In order to reflect the progress made in the di rect fi re design it was found necessary to extent the respective chapter , and a new chapter with recommendations for the repa ir of fi re damaged structures was added .