Browse > Article

An Evaluation for Progressive Collapse Resisting Capacity of a 80F RC Flat Plate for Sustainable Super Tall Building  

Seo, Dae-Won (서울과학기술대학교 건축학부)
Kim, Hae-Jin (한양대학교 건축환경공학과)
Shin, Sung Woo (한양대학교 건축학부)
Publication Information
KIEAE Journal / v.10, no.5, 2010 , pp. 151-157 More about this Journal
Abstract
This study is connected with evaluation of the progressive collapse resisting capacity for sustainable RC super tall building design. As the progressive collapse is not considered in current design codes in Korea, differences between linear static and dynamic analysis based on the GSA guidelines was analyzed for better evaluation, and the analysis model of flat plate system was determined. Finally, the progressive collapse resisting capacity was evaluated for structural system of super tall building. According to this study, the results by linear dynamic analysis were underestimated than the results by linear static analysis. Thus, the dynamic coefficient value of 2 provides conservative approach. The Effective Beam Width's model, currently used in field, is useful for the analysis about lateral force, but this model does not consider the effect of load redistribution by the slab. Hence, finite element analysis considering slab element will be needed for progressive collapse resisting capacity of the flat plate system. Finally, analysis model of 80-story building designed based on KBC(Korea Building Code) shows the weakness against progressive collapse because the DCR value is over 2. Thus, the countermeasure for alternative loading path such as installment of spandrel beam and reinforcements around slab is required to prevent the progressive collapse.
Keywords
Progressive collapse; Effective beam width; Flat plate; Structural system;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김한수, 최형근, 아웃리거와 벨트 트러스가 고층 건물의 연쇄붕괴 방지에 미치는 효과, 대한건축학회논문집 구조계, 제 25권 제 3호(통권245호), 2009. 3, pp.51-58
2 Grossman J. S., Verification of Proposed Design Methodologies for Effective Width of Slab-Column Frames, ACI Structural Journal, V.94, No. 2, March-April 1997
3 Sung Woo Shin, Jong Moon Ahn, Myung-Shin Choi, Dae-Won Seo, Su-Chan Bea, "An Evaluation on the Economics of Structural Floor System of Super Tall Buildings", CTBUH 2004 Seoul Conference, Proceedings Vol. 2, 2004, pp.674-679
4 Sung Woo Shin, "DESIGN HIGH-DENSITY CITY", Earthscan, UK/U.S.A, 2009, Chpater 20, pp. 293-308
5 GSA(2003), Progressive Collapse Anaysis and Design Guidelines for New Federal Office Buildings and Major Modernization Project, The U.S. General Services Administration, Washington, D. C.
6 DoD(2005), Unified Facilities Criteria(UFC) - Design of Building to Resist Progressive Collapse, Department of Defense, Washington, D. C.