Publication detail

The Influence of Initial Imperfections on the Behaviour of Thin-Walled Girders Welded of Slender Plate Elements

KALA, Z., KALA, J., ŠKALOUD, M., TEPLÝ, B.

Original Title

The Influence of Initial Imperfections on the Behaviour of Thin-Walled Girders Welded of Slender Plate Elements

English Title

The Influence of Initial Imperfections on the Behaviour of Thin-Walled Girders Welded of Slender Plate Elements

Type

conference paper

Language

en

Original Abstract

The objective of the paper is to analyse the influence of initial imperfections on the behaviour of thin-walled girders welded of slender plate elements. In parallel with theoretical analysis conducted at the Institute of Structural Mechanics of the Faculty of Civil Engineering in Brno, the behaviour of thin-walled girders is also experimentally studied in Prague. In theoretical analysis, the girder was modelled, using the geometrically and materially nonlinear variant of the shell finite element method, by the ANSYS programme. The analysis was performed for loading values relevant to usual working loads, i.e. to loading that governs fatigue behaviour. By way of sensitivity analysis it was studied to what extent the variability of initial imperfections was reflected in the variability of stresses in the crack prone areas of the girder. All input imperfections were considered to be random quantities. The statistical distributions were introduced according to both experimentally obtained results and data given in literature. Random realizations of input random quantities were simulated by the LHS (Latin Hypercube Sampling) method.

English abstract

The objective of the paper is to analyse the influence of initial imperfections on the behaviour of thin-walled girders welded of slender plate elements. In parallel with theoretical analysis conducted at the Institute of Structural Mechanics of the Faculty of Civil Engineering in Brno, the behaviour of thin-walled girders is also experimentally studied in Prague. In theoretical analysis, the girder was modelled, using the geometrically and materially nonlinear variant of the shell finite element method, by the ANSYS programme. The analysis was performed for loading values relevant to usual working loads, i.e. to loading that governs fatigue behaviour. By way of sensitivity analysis it was studied to what extent the variability of initial imperfections was reflected in the variability of stresses in the crack prone areas of the girder. All input imperfections were considered to be random quantities. The statistical distributions were introduced according to both experimentally obtained results and data given in literature. Random realizations of input random quantities were simulated by the LHS (Latin Hypercube Sampling) method.

Keywords

steel, girder, fatigue, random, imperfection, sensitivity, limit states

RIV year

2004

Released

07.05.2004

Location

Timisoara (Romania)

ISBN

973-638-119-6

Book

International Colloquium Dedicated to the 70th Anniversary of Professor Victor Gioncu

Pages from

41

Pages to

46

Pages count

6

BibTex


@inproceedings{BUT12440,
  author="Zdeněk {Kala} and Jiří {Kala} and Miroslav {Škaloud} and Břetislav {Teplý}",
  title="The Influence of Initial Imperfections on the Behaviour of Thin-Walled Girders Welded of Slender Plate Elements",
  annote="The objective of the paper is to analyse the influence of initial imperfections on the behaviour of thin-walled girders welded of slender plate elements. In parallel with theoretical analysis conducted at the Institute of Structural Mechanics of the Faculty of Civil Engineering in Brno,  the behaviour of thin-walled girders is also experimentally studied in Prague. In theoretical analysis, the girder was modelled, using the geometrically and materially nonlinear variant of the shell finite element method, by the ANSYS programme. The analysis was performed for loading values relevant to usual working loads, i.e. to loading that governs fatigue behaviour. By way of sensitivity analysis it was studied to what extent the variability of initial imperfections was reflected in the variability of stresses in the crack prone areas of the girder. All input imperfections were considered to be random quantities. The statistical distributions were introduced according to both experimentally obtained results and data given in literature. Random realizations of input random quantities were simulated by the LHS (Latin Hypercube Sampling) method.",
  booktitle="International Colloquium Dedicated to the 70th Anniversary of Professor Victor Gioncu",
  chapter="12440",
  year="2004",
  month="may",
  pages="41",
  type="conference paper"
}