The purpose of this study is to clarity the influence of the beam-end details on the fracture and deformation capacity of beam-to-column joints using SA440. This paper presents the results of full-scale tests of welded beam-to-column joints using SA440 with some type of the beam-end details ( method of drilled flange, non-scallop method and scallop method) on site and shop.Based on the test results, non-scallop method and the method of drilled flange have large deformation capacity and deformation capacity of site welded beam-to-column joints with the method of drilled flange improved over two times lager than common site welded beam-to-column joints.%本研究ではSA440鋼を用いたト型柱梁溶接接合試験体の正負交番静的繰り返し載荷実験をおこなった結果、以下の知見を得た。rn1）現場溶接型孔空きフランジ方式試験体の月sが5.7、工場溶接型ノンスカラップ工法試験体のη_sが7.2であるのに対して、スカラップを有する試験体は現場溶接型でη_sが2.6、工場溶接型でη_sが4.4と共に変形能力が低く、特に現場溶接型は変形能力が非常に小さい。
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