Browse > Article

A Study on the Behavior of Blasting Demolition for a Reinforced Concrete Structure Using Sealed Model Test and Particle Flow Analysis  

채희문 (대림산업주식회사)
전석원 (서울대학교)
Publication Information
Explosives and Blasting / v.22, no.1, 2004 , pp. 33-43 More about this Journal
Abstract
In this study, a comparison was made between the resulting behaviors of scaled model test and particle flow analysis for blasting demolition of a reinforced concrete structure. For the test and analysis, a progressive failure of a five-story structure was considered. The dimension analysis was carried out to properly scale down the real structure into the laboratory size. The test model was made of the mixture of gypsum, sand and water along with soldering lead to analogy reinforcing steel bars. The ratio of mixing components was chosen to best represent the scaled down strength and deformation modulus. The columns and girders of the structure were precasted in the laboratory and assembled right before the blasting test. The numerical analysis of the blasting demolition was carried out using PFC2D (Particle Flow Analysis 2-Dimension by Itasca). The results of the blasting of concrete lahmen structure showed roughly identical demolition behavior between scaled model test and numerical test. For the blasting of the reinforced concrete structure, the results were more identical and closer to the real demolition behavior, since the demolition behavior was better represented in this case due to the increased tensile strength of the component.
Keywords
blasting demolition; scaled model test; progressive failure; numerical analysis;
Citations & Related Records
연도 인용수 순위
  • Reference
1 조근희, 1995, 개별요소법에 의한 2차원 뼈대구조물의 붕괴해석, 서울대학교 공학석사학위 논문
2 손무열, 김광태, 이윤재, 1996, 1996 한화 발파해체 시공사례, 제 1회 한화기술 심포지움, pp.415-434
3 우동균, 신현묵, 문재길, 1998, 철근 콘크리트, 동명사, pp.1-63
4 류창하, 1999, 발파연구를 위한 수치해석적 기법과 컴퓨터 모델링, 발파기술 세미나 논문집, 한국암반공학회, pp.1-20
5 조효남, 심종성, 1991, 철근 콘크리트 구조설계, 구미서관, pp.1-54
6 정원준, 2002, PFC2D를 이용한 구조물의 발파해체 거동 모사, 서울대학교 공학석사학위 논문
7 이윤재, 송영석, 정민수, 권오성, 강대우, 2003, 김해국제공항 구 국제선 청사 발파해체 시공사례, 화약 . 발파, pp.37-48
8 http://www.whnetal.co.kr
9 Persson, P., Holmberg, R., Lee, J., 1994, Rock Blasting and Explosives Engineering, pp.90-115
10 Gere, J., Timoshenko, S., 1991, Mechanics of Materials, I.T.P, pp.220-266
11 Sawada, I., Yamaguchi, U., Kobayashi, N., Nakajiku, M., Shibata, H., Shindo, T., 1993, Blasting demolition of six-story reinforced concrete apartment building (Part 3: Blast degign, noise and vibration), Demolition and Reuse of Concrete and Masonry, Proceedings of the Third International RILEM Symposium, pp.171-181
12 Kurokawa, K., Yoshida, T., Saito, T., Yamamoto, M., Nakamura, S., 1993, Blasting demolition of six-story reinforced concrete apartment building (Part 1: Experimental blasting of reinforced concrete components), Demolition and Reuse of Concrete and Masonry, Proceedings of the Third International RILEM Symposium, pp.147-158
13 한국자원연구소, 1993, 제어발파에 의한 구조물 해체기술 개발연구(I), 과학기술처
14 건설교통부, 1996, 건물발파해체를 위한 제어발파 설계기술 개발
15 http://www.standard.go.kr
16 서영갑, 안주옥, 1993, 철근 콘크리트공학, 구미서관, pp.12-20
17 Hobbs, D., 1966, Scale model study of strata movement around mine roadways. Apparatus, technique and some preliminary results, Int. J. Rock Mech Min. Sci. 3, pp.101-127
18 김종우, 1988, 층상암반내 갱도의 변형거동에 관한 연구, 서울대학교 석사학위논문, 3-11
19 Kasai, Y., Saito, T., Seki, Y., Tomita, K., Ishibashi, J., 1993, Blasting demolition of six-story reinforced concrete apartment building (Part 2: Demolition plan, pre-work measures, collapse conditions), Demolition and Reuse of Concrete and Masonry, Proceeding of the Third International RILEM Symposium, pp.159-169