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http://dx.doi.org/10.5000/EESK.2017.21.5.205

Appropriate Response Index for Predicting Rupture in WUF-W Connections using FEA  

Han, Sang Whan (Department of Architecture, Hanyang University)
Kim, Young Woo (Department of Architecture, Hanyang University)
Kim, Tae O (Department of Architecture, Hanyang University)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.21, no.5, 2017 , pp. 205-213 More about this Journal
Abstract
The WUF-W moment connection is a pre-qualified connection that can be used for special moment frames specified in current seismic design specifications. Since the stress distribution near the connection varies according to access hole configuration, the cyclic performance of WUF-W connections is strongly affected by the access hole configurations. To evaluate the connection performance according to various access hole configurations, it is expensive to conduct experiments with many connection specimens. Instead, finite element analyses (FEA) can be performed. Throughout the FEA, stress and strain distribution in the connection can be monitored at each loading step. The purpose of this study is to construct nonlinear 3-dimensional FE models for accurately predicting the cyclic behavior of WUF-W connections. For predicting connection fracture using FEA, an appropriate response index detecting the incidence of connection rupture is proposed.
Keywords
Connections; Finite element analysis; Stress distribution; Special moment frame; Response index; Access hole; Cyclic behavior;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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