Transverse shear stiffness of bolted cold-formed steel storage rack upright frames with channel bracing members

Loading...
Thumbnail Image
File version

Version of Record (VoR)

Author(s)
Talebian, N
Gilbert, BP
Karampour, H
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
2018
Size
File type(s)
Location

St Louis, USA

License
Abstract

Accurately evaluating the transverse shear stiffness of cold-formed steel storage rack upright frames is crucial to calculate the frame elastic buckling load, perform earthquake design and serviceability checks. This is especially essential for high-bay racks, which are subjected to large second-order effects, and racks supporting the building enclosure, which are exposed to transverse wind loads. The shear behaviour of these frames is poorly understood and experimental testing is usually required to measure their stiffness. Previous studies have shown that Finite Element Analyses (FEA), solely using beam elements, fail to reproduce experimental test results and may overestimate the transverse shear stiffness by a factor up to 25. In this paper, a commercially used upright frame, with either bolted lip-to-lip or back-to-back channel section bracing members, has been modelled using shell elements. The model is verified against available experimental data and found to accurately predict the experimental shear stiffness with an average error of 7%. Based on the verified FE model, the factors contributing to the frame shear deformation are quantified. The different frame deformations imposed by the test set-ups in the European (EN15512) and Australian (AS4084) standards are both considered. The effects of the bracing lay-out, the bolt bending, local deformations of the uprights and bracing members at the connections on the performance of the upright frames are quantified and discussed.

Journal Title
Conference Title

Wei-Wen Yu International Specialty Conference on Cold-Formed Steel Structures 2018

Book Title
Edition
Volume
Issue
Thesis Type
Degree Program
School
DOI
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement

© The Author(s) 2018. The attached file is reproduced here in accordance with the copyright policy of the publisher. For information about this conference please refer to the conference’s website or contact the author(s).

Item Access Status
Note
Access the data
Related item(s)
Subject

Materials engineering

Persistent link to this record
Citation

Talebian, N; Gilbert, BP; Karampour, H, Transverse shear stiffness of bolted cold-formed steel storage rack upright frames with channel bracing members, International Specialty Conference on Cold-Formed Steel Structures 2018, 2018, pp. 455-469