The purpose of this study is focused on evaluating the flexural behavior of concrete beam, which are arranged by mechanically spliced reinforcing bar. 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. Based on test results, ductility of specimen mechanically all spliced by parallel threaded coupler is approximately 4 times greater than those of other specimens.

Abstract
 1. 서 론
 2. 실 험
  2.1 실험체 설계
  2.2 재하방법
 3. 결과분석
  3.1 철근 겹 이음 3개 실험체(D22SLSP3)
  3.2 실험체 (D22SLSP2PT1) 결과 분석
  3.3 실험체 (D22SLSP1PT2) 결과분석
  3.4 실험체 (D22SPT3) 결과 분석
 3.5 종합분석
 4. 결론
 References

• 나환선(한국전력공사 전력연구원) | Nah Hwan-Seon
• 박동수(한국전력공사 전력연구원) | Park Dong-Su
• 김상봉(한국전력공사 전력연구원) | Kim Sang-Bong