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웨브 개구부를 갖는 철골 보-기둥 접합부의 내진 성능에 관한 연구
박종원,강승민,황인규,강태경,권기주,Park, Jong Won,Kang, Seoung Min,Hwang, In Kyu,Kang, Tae Kyoung,Kwon, Ki Ju 한국강구조학회 2001 韓國鋼構造學會 論文集 Vol.13 No.4
보-기둥 접합부의 내진성능을 향상시키기 위해 소성힌지의 발생위치를 보의 내부로 유도한 철골 모멘트 접합부에 대해 실험연구를 수행하였다. 이를 위해 보의 단면을 감소시키는 방안으로는 dogbone 접합부에서 처럼 플랜지를 감소시키는 대신에 웨브에 개구부를 설치하였다. 본 연구에서는 개구부의 형상 및 크기를 변수로 하여 총 4개의 실제 크기의 시험체에 대해 반복하중 실험을 수행하였다. 4개 시험체 모두 기둥은 $H-458{\times}417{\times}30{\times}50$, 보는 $H-792{\times}300{\times}14{\times}22$를 사용하였다. 실험결과 웨브 개구부를 이용한 접합부는 강진지역에서 철골 모멘트 연성골조에 요구되는 0.04 rad.의 총회전각을 발휘할 수 있는 것으로 나타났다. A test program was conducted on seismic-resistant steel moment connections constructed using Reduced Beam Sections with beam web openings. In the connection, in order to enhance ductility capacity under severe cyclic loads, a portion of the beam web near the beam-to-column connection is cut out instead of the beam flange as in dogbone connections. A total of 4 large scale specimens were tested in this program. The specimens were all made using $H-458{\times}417{\times}30{\times}50$ sections for the columns and $H-792{\times}300{\times}14{\times}22$ sections for the beams. Test specimens showed excellent performance similar to that of dogbone connections.
나환선(Nah Hwan-Seon),이현주(Lee Hyeon-Ju),권기주(Kwon Ki-Joo) 한국구조물진단유지관리학회 2006 한국구조물진단학회 학술발표회논문집 Vol.10 No.1
The purpose of this study is focused on evaluating the flexural behavior of concrete beam, which are arranged by mechanically spliced reinforcing bar. This splicing method related to parallel threaded coupler is registered newly on KEPIC 2005. To compare the existent lapping method with newly registered splicing method, four cases of concrete beam are tested to be failed flexurally by monotonic loading. The co-relation between load and displacement, ductility, maximum load and max. displacement were comparatively analyzed. Based on test results, ductility of specimen mechanically all spliced by parallel threaded coupler is approximately 4 times better than those of other specimens.
나환선 ( Nah Hwan-seon ),이현주 ( Lee Hyeon-ju ),권기주 ( Kwon Ki-joo ) 한국구조물진단유지관리공학회 2006 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.10 No.1
The purpose of this study is focused on evaluating the flexural behavior of concrete beam, which are arranged by mechanically spliced reinforcing bar. This splicing method related to parallel threaded coupler is registered newly on KEPIC 2005. To compare the existent lapping method with newly registered splicing method, four cases of concrete beam are tested to be failed flexurally by monotonic loading. The co-relation between load and displacement, ductility, maximum load and max. displacement were comparatively analyzed. Based on test results, ductility of specimen mechanically all spliced by parallel threaded coupler is approximately 4 times better than those of other specimens.