Detail publikačního výsledku

Stability Problems of Steel Structures in the Presence of Stochastic and Fuzzy Uncertainty

KALA, Z.

Originální název

Stability Problems of Steel Structures in the Presence of Stochastic and Fuzzy Uncertainty

Anglický název

Stability Problems of Steel Structures in the Presence of Stochastic and Fuzzy Uncertainty

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

General ideas and problems of probability approach and its utilization in the verification of structural design procedures of EUROCODES are mentioned. The paper is aimed at the probability study of the ultimate limit state of a steel compressed member designed economically according to EUROCODE 3. The theoretical failure probability (reliability index) vs. ratio of permanent to variable load action is calculated by means of the Monte Carlo simulation method. The misalignment of the failure probability according to EN1990 is analyzed. Initial imperfections are generally considered as random variables and random fields. The nonlinear beam FEM is used. The influence of initial curvature shape and size variability of the member axis on the variability of load-carrying capacity is investigated. The probabilistic analysis is supplemented with the fuzzy analysis of the influence of uncertainties on the failure probability.

Anglický abstrakt

General ideas and problems of probability approach and its utilization in the verification of structural design procedures of EUROCODES are mentioned. The paper is aimed at the probability study of the ultimate limit state of a steel compressed member designed economically according to EUROCODE 3. The theoretical failure probability (reliability index) vs. ratio of permanent to variable load action is calculated by means of the Monte Carlo simulation method. The misalignment of the failure probability according to EN1990 is analyzed. Initial imperfections are generally considered as random variables and random fields. The nonlinear beam FEM is used. The influence of initial curvature shape and size variability of the member axis on the variability of load-carrying capacity is investigated. The probabilistic analysis is supplemented with the fuzzy analysis of the influence of uncertainties on the failure probability.

Klíčová slova

Standard, steel, reliability, buckling, fuzzy, simulation

Klíčová slova v angličtině

Standard, steel, reliability, buckling, fuzzy, simulation

Autoři

KALA, Z.

Vydáno

01.08.2007

ISSN

0263-8231

Periodikum

THIN-WALLED STRUCTURES

Svazek

45

Číslo

10-11

Stát

Spojené království Velké Británie a Severního Irska

Strany od

861

Strany do

865

Strany počet

5

BibTex

@article{BUT44105,
  author="Zdeněk {Kala}",
  title="Stability Problems of Steel Structures in the Presence of Stochastic and Fuzzy Uncertainty",
  journal="THIN-WALLED STRUCTURES",
  year="2007",
  volume="45",
  number="10-11",
  pages="861--865",
  issn="0263-8231"
}