Authors: Dumas, Martin; Beaulieu, Denis; Picard, André

Source: Canadian Journal of Civil Engineering, Volume 33, Number 4, April 2006 , pp. 409-420(12)

Publisher: NRC Research Press

Abstract:

This paper presents partial results of a research program under way at Laval University for which the main goal is to introduce the behaviour of steel connections into commercial structural analysis software. The objective of this paper is to derive analytical characterization equations for three commonly used steel column base connections. The procedure to derive these equations is based on a curve standardization theory that requires a number of experimental results in the form of moment-rotation curves that characterize the behaviour of column base connections. Because of a lack of available experimental results, data were obtained from finite element models. The design of a simple steel structure introducing the semi-rigid behaviour of column bases is presented as an example. It shows that consideration of the semi-rigidity of column base connections increases the accuracy of the analysis results and leads to a decrease in structure weight and deformation.Key words: analysis, base, behaviour, column, connection, frame, partial, rigidity, steel, structure.

Cet article présente les résultats d'une étude faisant partie d'un programme de recherche à l'Université Laval dont le but est d'introduire le comportement des assemblages de charpentes d'acier dans un logiciel commercial d'ana lyse. L'objectif de l'étude est de développer des équations analytiques de caractérisation pour trois assemblages de pieds de poteaux couramment utilisés. La procédure de dérivation de ces équations comprend l'utilisation d'une théorie de standardisation des courbes qui requiert un nombre considérable de résultats expérimentaux, soit des courbes moment-rotation caractérisant le comportement des assemblages. Compte tenu du manque de résultats expérimentaux, les données ont été obtenues par simulations sur des modèles d'éléments finis. La conception d'une charpente d'acier simple introduisant le comportement semi-rigide des pieds de poteaux est présentée en exemple. Cet exemple montre que le fait de considérer la semi-rigidité des pieds de poteaux donne des résultats d'analyse plus précis et conduit à une réduction du poids et des déformation de la charpente.Mots clés : acier, analyse, assemblages, charpente, comportement, partiel, pieds, poteaux, rigidité, structure.

Document Type: Research article

Publication date: 2006-04-01

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• Published since 1974, this monthly publication is the official journal of the Canadian Society for Civil Engineering. It contains articles on environmental engineering, hydrotechnical engineering, structure engineering, construction engineering, engineering mechanics, and engineering materials, and a history of civil engineering. Contributors include recognized researchers and practitioners in industry, government, and academe. New developments in engineering design and construction are also featured.
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