• 제목/요약/키워드: PC segmental

검색결과 22건 처리시간 0.015초

다발형 폴리아미드섬유 보강 콘크리트의 휨거동에 관한 실험적 연구 (A Experimental Study on the Flexural Behavior of Bundle Type Polyamide Fiber Reinforced Concrete)

  • Jeon, Chan Ki;Jeon, Joong Kyu
    • 한국재난정보학회 논문집
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    • 제10권1호
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    • pp.61-70
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    • 2014
  • 일반적으로 건설재료 용도로 많이 사용되고 있는 유기섬유 보강 콘크리트는 섬유 자체의 인장강도 및 탄성계수는 낮지만, 휨거동, 균열에 대한 저항성 및 충격저항성 등의 특성은 우수하며, 내화학성이 뛰어나고 부식의 우려가 없는 것으로 널리 알려져 있다. 최근 해외에서는 유기섬유 보강재를 터널 숏크리트와 프리캐스트 세그먼트 라이닝, 교량 슬래브 및 PC제품 분야에서 일부 활용되고 있으며, 그 종류 또한 다양하다. 본 연구에서는 다발형 폴리아미드섬유를 혼입한 콘크리트의 휨거동 특성을 ASTM C 1609 및 KS F 2566에 준하여 하중-처짐 관계를 도출하여 유기섬유 보강 콘크리트의 적용 가능성을 검토하였다.

성별에 따른 노인의 신체조성과 IADL에 관한 연구 (A Study on Body Composition and IADL of the Elderly according to the Sex)

  • 엄기매;양윤권
    • 대한물리치료과학회지
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    • 제7권1호
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    • pp.321-331
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    • 2000
  • The purpose of this study was to investigate the difference of body composition and IADL of between male elder and female elder. (This study consisted of elder male(n=10) and elder female(n=10),) The mean age of elder male and female was 67.20, 67.50 years. The data were analyzed with t-test, using SPSS PC+ program. Body composition was measured using Inbody 2.0(seoul, korea) of segmental multi-frequency impedance analyzer technique. IADL was measured with Philadelphia Geriatric Center IADL. The result of this study were the following: 1. The difference of Body composition 1) The %fat of elder female was significantly(p<0.05) higher than elder male by 11.48%. 2) The fat mass(kg) of elder female was significantly(p<0.05) higher than elder male by 6.28kg. 3) The free fat mass(kg) of elder male was significantly(p<0.05) higher than elder female by 9.03kg. 4) The muscle mass(kg) of elder male was significantly(p<0.05) higher than elder female by 8.63kg. 5) The WHR(%) elder female was no significantly higher than elder male by 0.03%. 6) The TBW(l) of elder male was significantly(p<0.05) higher than elder female by 6.321. The factor of significant difference of between elder male and female was %fat, fat mass(kg), free fat mass(kg), total body water(l). 2. The difference of IADL 1) IADL of elder male was no significantly higher than elder female by 1.20. As a result of this study, optimal body composition group was elder male group. Optimal body composition of elder had improved IADL. In addition to, this result of this study, it can suggested the consideration of the Health promotion program for elder.

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