목재를 이용한 단층 지오데식 돔의 불안정 거동과 임계좌굴하중

서지정보

ㆍ발행기관 : 한국공간구조학회 ㆍ수록지정보 : 한국공간구조학회지 / 23권 / 2호
ㆍ저자명 : 홍석호, 하현주, 손수덕, 이승재

목차

Abstract
1. 서론
2. 육각형 단위 목재 모델의 불안정성
3. 목재 지오데식 돔 모델
3.1 초기 입력 데이터
3.2 부재의 물성치
4. 목재 돔의 불안정 현상과 좌굴하중
4.1 Case 1의 불안정 현상과 좌굴하중
4.2 Case 2의 불안정 현상과 좌굴하중
5. 결론
감사의 글
References

영어 초록

Timber structures are susceptible to moisture, contamination, and pest infestation, which can compromise their integrity and pose a significant fire hazard. Despite these drawbacks, timber's lightweight properties, eco-friendliness, and alignment with current architectural trends emphasizing sustainability make it an attractive option for construction. Moreover, timber structures offer economic benefits and provide a natural aesthetic that regulates building temperature and humidity. In recent years, timber domes have gained popularity due to their high recyclability, lightness, and improved fire resistance. Researchers are exploring hybrid timber and steel domes to enhance stability and rigidity. However, shallow dome structures still face challenges related to structural instability. This study investigates stability problems associated with timber domes, the behavior of timber and steel hybrid domes, and the impact of timber member positioning on dome stability and critical load levels. The paper analyzes unstable buckling in single-layer lattice domes using an incremental analysis method. The critical buckling load of the domes is examined based on the arrangement of timber members in the inclined and horizontal directions. The analysis shows that nodal snapping is observed in the case of a concentrated load, whereas snap-back is also observed in the case of a uniform load. Furthermore, the use of inclined timber and horizontal steel members in the lattice dome design provides adequate stability.

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