PROBABILISTIC ASSESSMENT OF THE IMPACT OF STRAIGHTNESS TOLERANCES IN EN 1090-2 ON THE STABILITY DESIGN OF STEEL COLUMNS
Journal Title: ROMANIAN JOURNAL OF TECHNICAL SCIENCES - APPLIED MECHANICS - Year 2014, Vol 59, Issue 1
Abstract
This paper addresses a current, practical topic which has interesting implications for design practices and research in the steel construction industry: the impact of new, relaxed fabrication tolerances on the strength of compression members. The current debate on this topic – held at a code committee level – was triggered by the introduction of increased tolerances for the out-of-straightness of steel members in the new European standard for the execution of steel structures for constructional steelwork, EN 1090-2 [1]. The extent to which these changes are still “covered” by the present design rules is currently unknown. To date, a consistent, logically coherent justification for the acceptance of these changes is still missing. The study presented in this paper is therefore intended as a contribution to this debate. In the broader scientific context, it is intended to serve as an example for the possibility of answering questions regarding the impact of changes to production tolerances and manufacturing habits on design rules by probabilistic approaches.
Authors and Affiliations
ANDREAS TARAS
A NATURAL SONIC COMPOSITE – THE ATMOSPHERE
The atmosphere represents a natural sonic composite exhibiting the full band-gaps and localized modes around inhomogeneities given by the wind-velocity jumps. The paper analyses a barometric model including inhomogeneiti...
USE OF GENETIC ALGORITHMS FOR FITTING THE BOUC-WEN MODEL TO EXPERIMENTAL HYSTERETIC CURVES
In this paper a Genetic Algorithms (GA) method is developed to identify the Bouc-Wen model parameters from the experimental data of periodic loading tests. It is considered an extension of classical model in order to inc...
PROBABILISTIC SEISMIC VULNERABILITY ANALYSIS OF REINFORCED CONCRETE COLUMNS
Estimating the response of reinforced concrete columns to a transitory action, represented by a ground motion, is an uncertain task. The randomness of the seismic event and that of the response should be accounted for. T...
EFFECT OF DISTORTION ON THE STRUCTURAL BEHAVIOUR OF THIN-WALLED STEEL REGULAR POLYGONAL TUBES
This paper addresses the effect of cross-section distortion on the structural behaviour of thin-walled tubes with single-cell regular convex polygonal crosssections (RCPS) and provides an in-depth view on the underlying...
ON THE INVERSE SONIFICATION PROBLEM
The inverse sonification problem is discussed in this paper in order to identify new features in its capability to discover hidden details in the medical images. In contrast to the direct problem of sonification that con...