Cap decks used in slim floor system for reducing floor height act as molds for forming floor slabs in structures with a span of up to 6m without temporary supports. When deep decks are employed in a structure with a span of more than 6m, the problem of defection occurs. This study suggests placing tendons at the ends of cap decks in order to create cambers and control defection when preload is applied. Uniformly distributed load was applied by an UTM to the two L/4 points of specimens to observe the deflection of preloaded cap decks. For the test, three 7.5m specimens were fabricated. One of them was a plain cap deck specimen and the others were those with tendons (PC strands or steel bars.

1. Cap deck 개요
 2. 무동바리 Cap Deck 장스팬 구현 공법
  2.1 개요
  2.2 제작과정에서 Pre-Camber 도입
  2.3 프리로드에 의한 Pre-Camber 도입
  2.4 긴장재의 배치
  2.5 긴장재 고정을 위한 정착구 및 연결구
  2.6 긴장재 고정을 위한 격막재
 3. 무동바리 Cap Deck 이론적 검토
  3.1 Cap Deck의 처짐
  3.2 프리로드에 의한 Cap Deck 캠버
  3.3 7.5m Cap Deck 단면 응력 검토
  3.4 소 결
 4. Cap DECK 캠버 검증 실험
  4.1 7.5m Cap Deck 캠버 예비 실험
  4.2 7.5m Cap Deck 캠버 실험
  4.3 이론과 실험결과 비교
  4.4 정착구 검증
  4.5 소 결
 5. 프리로드가 도입된 Cap Deck의 휨실험
  5.1 프리로드가 도입된 Cap Deck휨 실험
  5.2 실험 결과 및 Failure Mode
  5.3 격막재 효과
  5.4 하중재하시 Cap Deck 단면 응력 비교
 6. 결 론
 ACKNOWLEDGMENT
 REFERENCES

• 강지수(서울시립대학교 건축공학과 석사과정) | Kang, Ji-Su
• 이승재(대성종합건설) | Lee, Seung-Jee
• 송종욱(㈜목양건축사사무소 실장) | Song, Jong-Wook
• 원용호(㈜목양건축사사사무소 소장) | Won, Yong-Ho
• 최성모(서울시립대학교 건축공학과 교수) | Choi, Sung-Mo Corresponding author