Equivalent Stabilizing Force of the Simply Supported Roof Girders Including the Longitudinal Variability of the Compression Force Acting in the Restrained Chord-Reference-Cited by-同舟云学术

Equivalent Stabilizing Force of the Simply Supported Roof Girders Including the Longitudinal Variability of the Compression Force Acting in the Restrained Chord

Published:2017-06-01 Issue:2 Volume:25 Page:43-57
ISSN:2450-8594
Container-title:Civil and Environmental Engineering Reports
language:en
Short-container-title:

Author:

Biegus Antoni¹,Czepiżak Dariusz¹

Affiliation:

1. Wroclaw University of Science and Technology , Wrocław , Poland

Abstract

Abstract In the calculation model of the equivalent stabilizing force qd for bracing system consistent with EN 1993-1-1 it has been conservatively assumed that the member to be restrained is uniformly compressed within its length by an axial force. This assumption is incorrect owing to the actual distribution of the axial force which is non-uniform in the shape of parabola. Thus a different imperfection force is generated in comparison with this given in EN 1993-1-1. In the paper the equivalent stabilizing force qd of simply supported roof girders has been analyzed. The formulas for an equivalent stabilizing forces of restrained roof girders with parabolic variability of axial force, have been proposed. Obtained results have been discussed and illustrated with examples.

Publisher

Walter de Gruyter GmbH

Subject

General Medicine

Reference7 articles.

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2. 2. Czepiżak D., Biegus A.: Refined calculation of lateral bracing systems due to global geometrical imperfections, Journal of Constructional Steel Research, 119 (2016) 30-38.

3. 3. Gardner M., Nethercot D.: in: H. Gulvanessian (Ed.) Designers Guide to EN 1993-1-1: Eurocode 3 Design of Steel Structures. Part 1-1: General Rules and Rules for Building, Thomas Telford Limited, London, 2005.

4. 4. EN 1993-1-1, Eurocode 3: Design of Steel Structures. Part 1-1: General Rules and Rules for Building, CEN, Brussels, 2005.

5. 5. Pałkowski Sz., Piątkowski M.: On the calculation of lateral roof bracing, Inżynieria i Budownictwo 4 (2014) 210-213 [in Polish].

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