Publication detail

Probabilistically modelled geometrical imperfections for reliability analysis of vertically loaded steel frames

JINDRA, D. KALA, Z. KALA, J.

Original Title

Probabilistically modelled geometrical imperfections for reliability analysis of vertically loaded steel frames

Type

journal article in Web of Science

Language

English

Original Abstract

The article explores the stochastic modelling of 3D steel frames under static vertical load, with a main focus on random initial geometrical imperfections. The random input parameters for initial geometrical imperfections are derived from the tolerance criteria in accordance with European standard. In order to derive statistical parameters from the corresponding standard tolerances, two methods noted as #RSS (random storey sway) and #RSP (random storey position) have been utilized and compared. Both of these methods are used along with the firstorder reliability method (FORM) and the advanced finite element method (FEM) - geometrically and materially nonlinear imperfect analysis (GMNIA) to numerically analyse several geometries of steel frame structures. Ultimate resistances of these structures are monitored and basic sensitivity studies are conducted. The results are also compared with the deterministic approach of the European standard. The stochastic approach of the FORM to estimate the ultimate resistance of steel frame structures serves as a verification tool of the classic, in engineering praxis widely used, deterministic approach. This study provides useful provisions for the advanced numerical analyses of steel frames of various geometries. Additionally, the estimations of ultimate resistance by the deterministic European standard approach is verified for selected frame geometries.

Keywords

Multi -story steel frames; Initial geometric imperfection; Erection tolerances; Correlations; First order reliability method; Geometrically nonlinear analysis

Authors

JINDRA, D.; KALA, Z.; KALA, J.

Released

29. 3. 2024

Publisher

ELSEVIER SCI LTD

Location

London

ISBN

1873-5983

Periodical

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH

Year of study

217

Number

06.2024

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

15

Pages count

15

URL

https://www.sciencedirect.com/science/article/abs/pii/S0143974X24001779

BibTex

@article{BUT191189,
  author="Daniel {Jindra} and Zdeněk {Kala} and Jiří {Kala}",
  title="Probabilistically modelled geometrical imperfections for reliability analysis of vertically loaded steel frames",
  journal="JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH",
  year="2024",
  volume="217",
  number="06.2024",
  pages="1--15",
  doi="10.1016/j.jcsr.2024.108627",
  issn="1873-5983",
  url="https://www.sciencedirect.com/science/article/abs/pii/S0143974X24001779"
}