연쇄붕괴 저항성능 해석을 위한 부분골조 모델Sub-assemblage Structure Model for Progressive Collapse Resistance Performance Analysis
- Other Titles
- Sub-assemblage Structure Model for Progressive Collapse Resistance Performance Analysis
- Authors
- Young-Soo, Na; Sam-Young, Noh; Ye, Li
- Issue Date
- Sep-2021
- Publisher
- 대한건축학회
- Keywords
- Alternated Path Method; Intermediate Moment Resisting Frame; Progressive collapse; Sub-assemblage Structure Model; Substitute Column
- Citation
- Journal of the Architectural Institute of Korea, v.37, no.9, pp 155 - 165
- Pages
- 11
- Indexed
- SCOPUS
KCI
- Journal Title
- Journal of the Architectural Institute of Korea
- Volume
- 37
- Number
- 9
- Start Page
- 155
- End Page
- 165
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/113615
- DOI
- 10.5659/JAIK.2021.37.9.155
- ISSN
- 2733-6239
2733-6247
- Abstract
- 구조물의 연쇄붕괴저항성능 해석을 위해 상층부의 대체경로를 통한 슬래브의 3차원 효과, 인접경간의 연속성, 응력 재분배 등을 고려하여 3차원골조 모델을 사용하는 것이 좋다. 저감모델을 이용하여 구조물을 모델링하지만, 대상구조물의 규모가 크므로 여전히 모델링 및 해석에 많은 시간이 소요된다. 본 연구에서는 부분골조 모델링 개념을 제시하였다. 부분골조의 모델링 범위는 전체골조 모델에서 순간적인 기둥 제거 전후의 부재에 대한 응력변와율을 이용하여 영향경간의 수를 분석하여 결정되었다. 모델링 개념은 부분골조의 외부 영역에 위치한 부재들의 모델링 상세정도에 따라 세 가지 수준에서 제시하였다. 하중-변위 관계, 거더 응력 및 소성힌지 발생 위치를 전체골조의 해석결과와 비교하여 평가한다.
For the analysis of the progressive collapse resistance performance of a structure, it is recommended to use a 3-D structure model that considers the 3-D effect of the slab, the continuity of the adjacent spans, and the redistribution of stress through the alternated path of the upper stories. Although a structure is modeled with reduced modeling concepts, the large size of the target structure still requires a lot of time on modeling and analysis. In this study, the sub-assemblage structure modeling concept was presented. The area of the sub-assemblage structure was determined by the analysis of the number of affected spans using the stress variation in the members before and after the sudden column removal in the entire structure model. The modeling concept was suggested in three levels according to the degree of the modelled detail of members located in the outer area of the sub-assemblage structure. They are evaluated by comparing the load-displacement relationship, girder stresses and plastic hinging locations with those resulted by the simulation of entire structure model. © 2023. The Authors.
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