Permissible Parameter Ranges of Access Hole Geometries for WUF-W Connections
- Authors
- Han, Sang Whan; Kim, Nam Hun
- Issue Date
- May-2017
- Publisher
- EARTHQUAKE ENGINEERING RESEARCH INST
- Citation
- Earthquake Spectra, v.33, no.2, pp.687 - 707
- Indexed
- SCIE
SCOPUS
- Journal Title
- Earthquake Spectra
- Volume
- 33
- Number
- 2
- Start Page
- 687
- End Page
- 707
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/152440
- DOI
- 10.1193/060716EQS092M
- ISSN
- 8755-2930
- Abstract
- The welded unreinforced flange-welded web (WUF-W) connection is one of seven prequalified connections for special moment frames (SMF) specified in AISC 358-10 (2010). Previous studies reported that the cyclic behavior of WUF-W connections was strongly affected by weld access hole geometry, and some WUF-W connections did not satisfy the requirements for SMF connections. For investigating in detail the effect of access hole configurations on the cyclic behavior of WUF-W connections, this study conducts three-dimensional nonlinear fmite element analyses. This study shows that the seismic behavior of WUF-W connections are strongly affected by two configuration parameters, access hole slope and length of flat portion. To satisfy the requirement for SMF connections, this study proposes a range of the access hole slope and length of flat portion for WUF-W connections considering different span-to-depth ratios, beam depths, and material types.
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