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Title: Testing and design of stainless steel staggered bolted connections
Authors: dos Santos, João de J.
Liang, Yating
Zhao, Ou
de Andrade, Sebastião A. L.
de Lima, Luciano R. O.
Gardner, Leroy
Vellasco, Pedro C. G. da S.
Keywords: Engineering::Civil engineering
Issue Date: 2021
Source: dos Santos, J. D. J., Liang, Y., Zhao, O., de Andrade, S. A. L., de Lima, L. R. O., Gardner, L. & Vellasco, P. C. G. D. S. (2021). Testing and design of stainless steel staggered bolted connections. Engineering Structures, 231, 111707-.
Journal: Engineering Structures 
Abstract: The present paper reports a thorough experimental investigation into the net section failure behaviour and capacity of stainless steel staggered bolted connections in tension. The testing programme was carried out on 31 stainless steel staggered bolted connection specimens, with 18 made of austenitic stainless steel (grade EN 1.4301), 7 made of duplex stainless steel (grade EN 1.4462) and 6 made of ferritic stainless steel (grade EN 1.4016). The geometric parameters, including the transverse and staggered pitches, and the staggered bolt hole patterns of the connection specimens, were varied. The test setup and procedures, as well as the key experimentally observed results, including the net section failure modes and loads, are reported in detail. The experimentally obtained net section failure loads and modes are analysed and discussed, and then utilised to assess the accuracy of the established design rules for stainless steel staggered bolted connections, given in the European, American and Australian/New Zealand standards. All three examined standards consider (i) net section fracture and (ii) gross section yielding in the design of stainless steel staggered bolted connections, and specify that the design failure load shall be taken as the minimum value calculated from all potential failure modes. It was found that the current design standards lead to overly conservative and scattered failure load predictions as well as inaccurate failure mode predictions. A new design approach based on the continuous strength method (CSM) is proposed, and shown to result in substantially improved predictions of both failure loads and failure modes.
ISSN: 0141-0296
DOI: 10.1016/j.engstruct.2020.111707
Schools: School of Civil and Environmental Engineering 
Rights: © 2020 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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