구조물 내진보강법에 따른 저층 건축물의 내진성능평가
Seismic Performance Evaluation of the Low-Rise Buildings with Different Seismic Retrofit Procedures
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초록
After an earthquake occurred in the Gyeongju, 2016, many low-story buildings have been questioned in terms of the seismic performance since mostly they have been exempted from the seismic design requirement since 1988. In this study, a 3-story moment resisting frame (MRF) building was analyzed and evaluated the seismic performance. Due to the insufficient seismic performance required for the seismic performance levels, three different seismic retrofit schemes were proposed and their seismic performances were re-evaluated. While steel brace and open shear wall retrofit systems mainly focused on the strength retrofit, the VES damper retrofit system is mainly to enhance the energy dissipation capacity of the system and resultes in the increased ductility. The original building and 3 retrofitted buildings were evaluated using the nonlinear static and nonlinear dynamic analyses and suggestions were proposed. Through the analysis of nonlinear time history and push-over using MIDAS/Gen program, damages of the building in terms of top story and average story drift and effect of reinforcement were analyzed.
Abstract
After an earthquake occurred in the Gyeongju, 2016, many low-story buildings have been questioned in terms of the seismic performance since mostly they have been exempted from the seismic design requirement since 1988. In this study, a 3-story moment resisting frame (MRF) building was analyzed and evaluated the seismic performance. Due to the insufficient seismic performance required for the seismic performance levels, three different seismic retrofit schemes were proposed and their seismic performances were re-evaluated. While steel brace and open shear wall retrofit systems mainly focused on the strength retrofit, the VES damper retrofit system is mainly to enhance the energy dissipation capacity of the system and resultes in the increased ductility. The original building and 3 retrofitted buildings were evaluated using the nonlinear static and nonlinear dynamic analyses and suggestions were proposed. Through the analysis of nonlinear time history and push-over using MIDAS/Gen program, damages of the building in terms of top story and average story drift and effect of reinforcement were analyzed.
참고문헌 (13)
- Architectural Institute of Korea, "Architectural Structure Design Standards and Commentary", ~ (2009)
- Architectural Institute of Korea, "Architectural Structure Design Standards and Commentary", ~ (2016)
- Federal Emergency Management Agency, "FEMA-P965. Quantification of Building Seismic Performance Factors", FEMA, ~ (2009)
- Seismic Performance Evaluation Method of Existing Structures, "Ministry of Land, Transport and Maritime Affairs", ~ (2011)
- Korean Educational Development Institute, "Seismic Performance Evaluation and Seismic Retrofit Guidelines for School Structures", ~ (2011)
- Seismic Design Criteria Research(Ⅱ), "Ministry of Construction & Transportation", ~ (1997)
- 김대훈, "가력하중을 통한 CST30제진댐퍼시스템의 구조성능 평가", 한국공간구조학회지, 15(2), pp.61~68 (2015), 한국공간구조학회[DOI]
- 안충원, "철골브레이스에 의한 기존 RC건축물의 강도상승형 내진보강을 위한 설계고려사항", 한국지진공학회논문집, 17(6), pp.293~303 (2013), 한국지진공학회
- Yi YS, "Seismic Performance Evaluation of Shear Wall Retrofitted with FRP", 한국콘크리트학회 봄학술발표회 논문집 (2013)
- National Emergency Management Agency, "Guidelines for evaluation of seismic performance of buildings", ~ (2012)
- Hong Juhee, "Seismic performance evaluation of MRF building structures retrofitted using VES30 damper systems", pp.2016
- "Seismic evaluation and retrofit of concrete buildings. ATC-40", ~
- "Prestandard and Comnmentary for the seismic rehabilitation of buildings(FEMA 356)", ~