Analys of Geometrical Imperfections in Structural Columns
Translated title
Analyse af Geometrisk Imperfektioner i Søjler
Authors
Christensen, Martin ; Roug, Peter
Term
4. term
Education
Publication year
2014
Submitted on
2014-06-10
Pages
63
Abstract
This thesis involves an analysis of the load capacity of slender IPE160 steel columns limited by global instability, by means of analyti cal and numerical calculati ons. The analyti cal calculati ons will be conducted in correspondence to the current [DS/EN-1993-1-1, 2007] standard, while the numerical analysis will be performed in the commercial soft ware Abaqus. The calculati ons are limited to uniaxial compressed, simple supported columns, subjected to a variety of imperfecti ons. The load capacity is compared with experimental data found in literature and the model uncertainti es are determined. The results obtained in the project are used to calculate reliability index and parti al safety factors, by FORM which is verified through Monte Carlo Simulati on. Subsequently the calculated parti al safety factors are discussed and a calibrati on is conducted. The column behavior is reviewed conti nuously throughout the project, and a history review with State-of-the-Art are reviewed in order to assess the influence on current standards.
Keywords
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