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http://dx.doi.org/10.5000/EESK.2002.6.4.031

Cyclic Seismic Testing of Steel Moment Connections Reinforced with Welded Straight Haunch  

이철호 (경남대학교 건축학부)
권근배 (경남대학교 건축학부)
정종현 (현대건설 기술연구소)
오명호 (현대건설 기술연구소)
구은숙 (현대건설 기술연구소)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.6, no.4, 2002 , pp. 31-37 More about this Journal
Abstract
Recently a simplified design procedure as well as load transfer model for seismic steel moment connections with welded straight haunch have been proposed by Lee and Uang. Cyclic seismic testing was conducted to verify the proposed design procedure and to develop the details that will prevent the cracking at the haunch tip, where stress concentration was the highest. All the specimens thus designed effectively pushed plastic hinging away from the haunch tip and were able to develop satisfactory plastic rotation capacity of 0.04 radian with no fracture. A sloped edge combined with drilling a hole near the haunch tip or a pair of stiffeners(partially or fully) extended from the beam web successfully prevented the crack initiation at the haunch tip. The strut action of the haunch web, which had been predicted from the previous analytical study, was also experimentally identified through the strain gage readings.
Keywords
steel moment connection; straight haunch; seismic testing; welding; crack;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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