Preprints of the National Meeting of JWS
Preprints of the National Meeting of JWS
Session ID : 107
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Host: Japan Welding Society

Study of MAG Welding without Steel-backing for Column-to-beam Connection Joints of Steel Structures
*Takafumi Sasaki, Tetsuo Suga, Tetsuya Hashimoto, Takuya Nagai, Reiichi Suzuki, Ryu Kasai, Tadao Nakagomi
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Keywords: column-to-beam connection joints of steel structures, metal active gas welding, without steel-backing, welding procedure, flux-cored wire, fatigue strength
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Abstract
The MAG welding procedure without steel-backing for column-to-beam connection joints of steel structures has been studied. This method is characterized by two-pass overhead welding which uses FCW for the back side. Since the toe shape of back bead is good in addition to the absence of a stress concentration part of steel-backing, the fatigue strength of welded joints has been found to be improved, compared with the conventional MAG welding process with steel-backing.
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© 2012 by Japan Welding Society
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