This study investigates the elastic behavior characteristics of GRP pipes reinforced with trapezoidal ribs instead of rectangular ribs. Han(2006) proposed GRP pipe reinforced with rectangular ribs in 2006, to promote buckling strength of the pipe. But it is more difficult to reinforce pipe with rectangular ribs than external corrugated ribs, because of pipe manufacturing process referred to as filament winding. Therefore, This study investigated the elastic behavior characteristics of the GRP pipe reinforced with trapezoidal ribs for simplifying analysis approach of external corrugated ribs.

ABSTRACT
 1. 서 론
 2. 유한 요소 해석 모델
  2.1 GRP Pipe의 해석모델 제원
  2.2 해석모델의 검증
  2.3 GRP Pipe의 해석 모델 수렴도 검증
 3. 유한 요소 해석 결과
  3.1 리브의 높이(h) 변화에 따른 해석결과
  3.2 리브의 폭(w) 변화에 따른 유한요소해석
 4. 결 론
 참고 문헌

• 이정화(고려대학교 건축사회환경공학부) | Lee Jeong-Hwa
• 원덕희(고려대학교 초고층초장대기술연구소) | Won Deok-Hee
• 한택희(한국해양연구원 연안개발/에너지 연구부) | Han Taek-Hee
• 김승준(Texas Transportation Institute The Texas A&M University System) | Kim Seung-Jun
• 강영종(고려대학교 건축사회환경공학부) | Kang Young-Jong