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    General Issues Influencing Connection Performance

    Source: Journal of Structural Engineering:;2002:;Volume ( 128 ):;issue: 004
    Author:
    Charles W. Roeder
    DOI: 10.1061/(ASCE)0733-9445(2002)128:4(420)
    Publisher: American Society of Civil Engineers
    Abstract: Welded-flange–bolted-web connections were damaged during the 1994 Northridge Earthquake. The SAC Steel Project was started to address the problems associated with this damage. The Connection Performance Team completed research on the behavior of a number of connection types. During this research, some issues were found to influence the behavior of many different connection types. These issues are described in this paper. The issues include panel zone yielding, weld process and toughness, web attachment, beam depth and frame geometry, yield stress of the steel, geometry and orientation of the column, composite slabs, local slenderness and unsupported length, temperature, and strain rate. Panel zone yielding is a yield mechanism that contributes to ductility of moment frame connections, but connections with excessive panel zone deformation may have premature connection fracture and reduced ductility. Therefore, panel zone yield deformation must be controlled to have balanced behavior. The web attachment combined with tough welds and improved weld and weld access hole details were needed to improve the ductility of welded flange connections. Beam depth and span length affect the ductility and performance of moment frame connections, but some factors including temperature, strain rate, and local buckling are of secondary importance.
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      General Issues Influencing Connection Performance

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    contributor authorCharles W. Roeder
    date accessioned2017-05-08T20:58:19Z
    date available2017-05-08T20:58:19Z
    date copyrightApril 2002
    date issued2002
    identifier other%28asce%290733-9445%282002%29128%3A4%28420%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/33804
    description abstractWelded-flange–bolted-web connections were damaged during the 1994 Northridge Earthquake. The SAC Steel Project was started to address the problems associated with this damage. The Connection Performance Team completed research on the behavior of a number of connection types. During this research, some issues were found to influence the behavior of many different connection types. These issues are described in this paper. The issues include panel zone yielding, weld process and toughness, web attachment, beam depth and frame geometry, yield stress of the steel, geometry and orientation of the column, composite slabs, local slenderness and unsupported length, temperature, and strain rate. Panel zone yielding is a yield mechanism that contributes to ductility of moment frame connections, but connections with excessive panel zone deformation may have premature connection fracture and reduced ductility. Therefore, panel zone yield deformation must be controlled to have balanced behavior. The web attachment combined with tough welds and improved weld and weld access hole details were needed to improve the ductility of welded flange connections. Beam depth and span length affect the ductility and performance of moment frame connections, but some factors including temperature, strain rate, and local buckling are of secondary importance.
    publisherAmerican Society of Civil Engineers
    titleGeneral Issues Influencing Connection Performance
    typeJournal Paper
    journal volume128
    journal issue4
    journal titleJournal of Structural Engineering
    identifier doi10.1061/(ASCE)0733-9445(2002)128:4(420)
    treeJournal of Structural Engineering:;2002:;Volume ( 128 ):;issue: 004
    contenttypeFulltext
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