Probabilistic quantification of safety of a steel structure highlighting the potential of steel versus other materials
Modern design rules are based on limit state design, which considers ultimate limit states, and limit states of serviceability. For these different limit states, the designer ensures sufficient safety by using safety factors on the material properties and on the loads. The determination of these safety factors has been based on expert judgement, experience and a probabilistic approach described in EN 1990. There are shortcomings in the existing basic rules (statistical definition of actions, imperfections, model uncertainties, resistance, combination rules for actions, the definition of parameters relevant for safety) that are unfavourable for steel application. It is the aim of this project to perform complete reliability analysis of steel and composite buildings in order to highlight the advantage of the steel construction and to quantify in a scientific and mathematical way the safety level of the different construction types. Safety is one of the major concerns of society. However the existing means to quantify safety in a rigorous way have to be developed for the construction field and have not yet been used at large scale to analyse building safety. Only some typical items of steel building have been analysed by following reliability procedures of Eurocodes 1 to 3. Everybody agrees to admit that steel is the most studied and known construction material as far as fabrication process, chemical composition, material behaviour, ultimate mechanical properties, testing procedure, geometry tolerances, design method, global behaviour of the construction, numerical simulation, joint behaviour, fire behaviour, seismic resistance, dynamic resistance, fatigue resistance, etc. are concerned. This better knowledge of steel behaviour should be translated in terms of safety and reliability.
Bibliographic Reference: EUR 21695 EN (2005), 242 pp. Euro: 35
Availability: Katalogue Number: KI-NA-21695-EN-S The paper version can be ordered online and the PDF version downloaded at: http://bookshop.eu/
ISBN: ISBN: 92-894-9864-1
Record Number: 200518392 / Last updated on: 2005-10-05
Original language: en
Available languages: en