Practical design tools for unprotected steel columns submitted to ISO - FIRE - REFAO III
Project ID: 7210-SA/505Funded under: ECSC-STEELRES 7C
Geometrical factors (shapes, buckling lengths), steel qualities and coefficients governing the heat exchanges are considered in this research programme. The temperature-dependent stress-strain relationships of steel had previously been tested by simulation of bending tests, which showed the necessity of improving these laws when effects on pure steel elements have to be calculated. New improved stress-strain relationships of steel were determined using transient-state beam tests performed on small, simply supported, steel beams, subjected to a concentrated constant load and a controlled temperature increase. These new laws have been established for commonly used construction steels as well as for the high-strength steel FeE 460. The validity of these improved relationships was verified by simulating six full-scale fire tests performed on unprotected steel columns in the laboratories of Braunschweig and Ghent. Finally, practical design tools were implemented, which are proposed here in the form of tables and diagrams.
Bibliographic Reference: EUR 14348 EN (1993) 316 pp., FS, ECU 33
ISBN: ISBN 92-826-4938-5
Record Number: 199310324 / Last updated on: 1994-11-29
Original language: en
Available languages: en