Maraveas, C and Tsavdaridis, KD orcid.org/0000-0001-8349-3979 (2019) Assessment and Retrofitting of an Existing Steel Structure subjected to Wind-Induced Failure Analysis. Journal of Building Engineering, 23. pp. 53-67. ISSN 2352-7102
Abstract
Wind loads are a major threat for old corroded steel structures constructed near the sea where wind speeds can be very high. This paper presents a case study of a wind-induced failure analysis of an existing steel structure and the proposed retrofitting methods. The examined steel structure was constructed in the 1970s in Syros, Greece and is currently operating as an athletic centre. The first part of this study presents the wind-induced failure analysis, from which a domino effect is documented. A corroded bracing that was buckled due to wind load governs the reduction of vertical load carrying of the steel structure and creates an asymmetry under horizontal loading before a number of other steel members failed due to buckling. To understand the structure's performance, failure analysis, as well as time history and incremental dynamic analysis, were performed. The second part of this paper presents the proposed retrofitting methods for improving the vertical load carrying capacity under wind loads. The goal was to improve the load-carrying capacity of the structure so as to comply with current design European codes. In addition, enhancement of the dynamic properties of the strengthened structure was demonstrated using modal analyses. The structural behaviour was determined in a more precise manner via non-linear wind time-history and incremental static analyses. The analytical results explain the development of failures in the existing structure.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 Elsevier Ltd. This is an author produced version of a paper published in Journal of Building Engineering. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | wind-induced analysis; steel buckling; structural assessment; strengthening; rehabilitation; repair; time-history analysis; incremental static analysis; modal analysis |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 08 Jan 2019 16:42 |
Last Modified: | 11 Jan 2020 01:39 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.jobe.2019.01.005 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:140614 |