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Elasto-Plastic Behavior of Steel Beams with High Strength Bolted Splices  

Choi, Sung Mo (서울시립대학교 건축공학과)
Kim, Jin Ho (포항산업과학연구원 강구조연구소)
Roh, Won Kyoung (서울시립대학교 건축공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.15, no.5, 2003 , pp. 531-539 More about this Journal
Abstract
Unlike field-welded moment frames damaged during the Northridge earthquake, a column-tree moment frame has a tool to control and reduce its seismic behavior. The tool is the girder splice. Girder splices could be designed to be sufficiently ductile and to have a prescribed bending moment capacity. In such a design, during earthquakes, the girder splices would act as ductile "fuses" and limit the magnitude of forces including the bending moment that could be developed in the frame. In Korea, most moment frames arc composed of a column-tree moment frame. Therefore, the elasto-plastic behavior of steel beams with high strength bolted friction splice should be clarified. Furthermore, structural capacities, including energy absorption capacity, must be quantitatively found. This paper discusses an experimental study to clarify elasto-plastic behavior of steel beams with high strength bolted friction splices. A total of 5 specimens were tested. A specimen was fabricated to have a beam splice designed by a full strength method. Other specimens were fabricated to have beam splices with 75%, 50% and 0% capacities compared with the specimen.
Keywords
Beam-splice; High Tension Bolt; Column-Tree Moment Frame; Friction Type; Field Bolting; Shop Welding;
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