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Title: Static strength of thick-walled CHS X-joints - Part I. New approach in strength definition
Authors: Choo, Y.S. 
Qian, X.D. 
Liew, J.Y.R. 
Wardenier, J.
Keywords: Circular hollow section
Deformation limit
Joint strength
Plastic load approach
Thick-walled X-joint
Issue Date: Oct-2003
Citation: Choo, Y.S., Qian, X.D., Liew, J.Y.R., Wardenier, J. (2003-10). Static strength of thick-walled CHS X-joints - Part I. New approach in strength definition. Journal of Constructional Steel Research 59 (10) : 1201-1228. ScholarBank@NUS Repository.
Abstract: This paper presents a new approach in the definition of joint strength for thick-walled circular hollow section (CHS) X-joint subjected to brace axial loading. This is based on the plastic load approach for limit analysis of pressure vessel components proposed by Gerdeen. A consistent coefficient λ associated with the plastic load approach has been determined, and the corresponding joint strength for X-joint under brace axial loads is found to correlate closely with the results obtained using Lu's deformation limit. The strength prediction for thick-walled CHS X-joint using the present approach is found to be in good agreement with design recommendations by ISO and CIDECT for joints with chord radius-to-thickness ratio γ > 7. For X-joints with γ < 7, significant difference in results is observed especially with the ISO recommendation for joints with brace-chord diameter ratio β≥0.7. © 2003 Elsevier Ltd. All rights reserved.
Source Title: Journal of Constructional Steel Research
ISSN: 0143974X
DOI: 10.1016/S0143-974X(03)00054-3
Appears in Collections:Staff Publications

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