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A Balanced Panel Zone Strength Criterion for Reduced Beam Section Steel Moment Connections  

Lee, Cheol Ho (서울대학교 건축학과)
Kim, Jae Hoon (서울대학교 건축학과)
Jeon, Sang Woo (포항산업과학연구원)
Kim, Jin Ho (포항산업과학연구원)
Publication Information
Journal of Korean Society of Steel Construction / v.18, no.1, 2006 , pp. 59-69 More about this Journal
Abstract
This paper presents test results on reduced beam section (RBS)program addressed panel zone (PZ) strength as the key variables. PZ strength has been much debated issue for several decades. A desirable range of PZ strength has not yet been proposed despite the fact that a significant amount of RBS test data is available. Test results from this study and by others showed that panel zones could easily develop a plastic rotation of 0.01 radian without causing distress to the beam flange groove welds. At this deformation level, the amount of beam distortion (i.e., buckling) was about one half that developed in strong PZ specimens. A criterion for a balanced PZ strength that improves the plastic rotation capacity while reducing the amount of beam buckling is proposed.
Keywords
Reduced beam section; Steel moment connection; Balanced panel zone; Seismic performance; Buckling;
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