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A study of net-section resistance of high strength steel bolted connections
Lin,Xue Mei1,2; Yam,Michael C.H.1,2; Chung,Kwok Fai2,3; Lam,Angus C.C.4
2021-02
Source PublicationTHIN-WALLED STRUCTURES
ISSN0263-8231
Volume159Pages:107284
Abstract

This article presents an experimental and numerical investigation on the net section resistance of high strength steel (HSS) bolted connections subject to double shear. A total of 22 HSS and 11 mild steel (MS) bolted connection specimens were tested to net section fracture. HSS grades of Q690 and Q960, and MS grade of Q345 were studied. Although the HSS material has relatively lower ductility and a lower ratio of tensile strength to yield strength (f/f) than those of the MS material, in general, the HSS connection specimens were able to reach the connection efficiency (i.e. the ratio of the ultimate load of the connection specimens to the calculated net section resistance) of above 1.0. Subsequently, the structural behaviour of the connections was studied by finite element (FE) analysis. The effects of material ductility and f/f ratio on the stress development across the net section of the specimens were examined. It was found that HSS materials possess sufficient ductility to allow an efficient stress redistribution across the net section. Besides, the beneficial influence of the ‘reinforcement’ or the biaxial stress effect due to the presence of holes in the connection increases the ultimate capacity of the perforated main plate, and hence the HSS specimens were able to reach the net section resistance. However, the overall deformation capability of the HSS specimens was significantly lower than that of the MS specimens. A reliability analysis was carried out to re-examine the partial factor used in the current design equation for predicting the net section resistance in Eurocode 3.

KeywordBolted Connections Experimental Investigation Finite Element Analysis High Strength Steel Net Section Resistance Reliability Analysis
DOI10.1016/j.tws.2020.107284
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Civil ; Engineering, Mechanical ; Mechanics
WOS IDWOS:000616151800003
PublisherELSEVIER SCI LTDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Scopus ID2-s2.0-85097101075
Fulltext Access
FWCI1.6151112
Citation statistics
Document TypeJournal article
CollectionFaculty of Science and Technology
DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Corresponding AuthorYam,Michael C.H.
Affiliation1.Department of Building and Real Estate,The Hong Kong Polytechnic University,Hong Kong,Hong Kong
2.Chinese National Engineering Research Centre for Steel Construction (Hong Kong Branch),The Hong Kong Polytechnic University,Hong Kong,Hong Kong
3.Department of Civil and Environmental Engineering,The Hong Kong Polytechnic University,Hong Kong,Hong Kong
4.Department of Civil & Environmental Engineering,University of Macau,Macau,China
Recommended Citation
GB/T 7714
Lin,Xue Mei,Yam,Michael C.H.,Chung,Kwok Fai,et al. A study of net-section resistance of high strength steel bolted connections[J]. THIN-WALLED STRUCTURES,2021,159:107284.
APA Lin,Xue Mei,Yam,Michael C.H.,Chung,Kwok Fai,&Lam,Angus C.C..(2021).A study of net-section resistance of high strength steel bolted connections.THIN-WALLED STRUCTURES,159,107284.
MLA Lin,Xue Mei,et al."A study of net-section resistance of high strength steel bolted connections".THIN-WALLED STRUCTURES 159(2021):107284.
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