Browse > Article
http://dx.doi.org/10.11112/jksmi.2011.15.1.243

Nonlinear Behavior of Seismic-Strengthened Domestic School Building  

Ryu, Seung Hyun (충남대학교)
Yun, Hyun Do (충남대학교 건축공학과)
Kim, Sun Woo (충남대학교)
Lee, Kang Seok (전남대학교 건축학부)
Kim, Yong Cheol ((주)동양구조엔지니어링)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.15, no.1, 2011 , pp. 243-253 More about this Journal
Abstract
This paper describes an analytical study on seismic performance of domestic reinforced concrete (RC) school building not designed by seismic provision. The seismic index and the seismic performance of the building were evaluated through Japanese standard and Midas Gen, respectively. Seismic index (Is) of the RC school buildings in the X-direction is below 0.4. Based on the seismic index, for seismic-strengthening the building, infill shear wall or steel brace with a capacity of 1,300 kN was used. According to nonlinear static analysis results, the contribution of the seismic-strengthening to the shear resistance of the school building was measured to be greater than 30%. However, as expected, shear strength of school building strengthened with infill wall dropt rapidly after peak load and much narrower ductile behavior range was observed compared to steel brace strengthened building. Also, the building strengthened with steel brace showed 30% larger spectral displacement than that strengthened with infill shear wall. In nonlinear dynamic analysis, for the time history analysis, the maximum displacement showed tendency to decrease as amount of reinforcement increased, regardless of strengthening method. It was recommended that variable soil properties and earthquake record should be considered for improving seismic performance of buildings in seismic zone.
Keywords
Reinforced concrete school building; Nonlinear analysis; Seismic performance; Infill shear wall; Steel brace;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Federal Emergency Management Agency, FEMA 356, "Prestandard and Commentary for the Seismic Rehabilitation of Buildings Prepared by American Society of Civil Engineers", Washington DC, 2000.
2 Japan Building Disaster Prevention Association, "Standard for Evaluation of Seismic Capacity of Existing Reinforced Concrete Buildings", Tokyo, Japan, 2001.
3 Josheph M. Bracci, Andrei M. Reinhorn, John B. Mander, "Seismic Retrofit of Reinforced Concrete Buildings Designed for Gravity Loads : Performance of Structural Model", ACI Structural Journal, 92-S68, 1995.
4 L. T. Phan, D. R. Todd, H. S. Lew, "Strengthening Methodology for Lightly Reinforced Concrete Frames-I", NIST, 1993.
5 Mary Beth D. Hueste, Jong-Wha Bai, "Seismic Retrofit of a Reinforced Concrete Flat-Slab Structure: Part I-Seismic Performance Evaluation", Engineering Structures, vol. 29, 2007.
6 Mehmet Inel ․ Hayri Baytan Ozman, Effects of Plastic Hinge Properties in Nonlinear Analysis of Reinforced Concrete Buildings, Elsevier, 2006.
7 MIDAS IT. MIDAS/gen Analysis & Design Manual. MIDAS Information Technology Cooperation, 2004.
8 Midas/Gen, "General Structure Design System-Midas /Gen Ver.785 Program", MIDAS Information Technology Co., LTD., 2010.
9 Ozgur Anil, Sinan Altin, "An Experimental Study on Reinforced Concrete Partially Infilled Frames", Engineering Structures, vol. 29, 2007.
10 Peter Fajfar ․ M. EERI, A Nonlinear Analysis Method for Performance Based Siemic Design, Earthquake Spectra, vol.16, No.3, 2000.
11 Steve Huang, Wen-Hung Chang, "Inelastic Behavior of Infilled Concrete Frames", The 3rd International Conference on Stuctural Stability and Dyniamics, 2005.
12 Wen YK., Ellingwood BR., Veneziano D, Bracci JM, Uncertainty Modeling in Earthquake Engineering, Mid-America Earthquake Center Project FD-2 Report, 2003.
13 (주)동양구조엔지니어링, 충남대학교 고지능콘크리트 구조연구실, "학교 비내진시설물 내진성능 판정 및 보강방안/비용제안", 충청남도 교육청, 2010.
14 교육과학기술부, "학교시설 내진보강 우선도 전수조사 학교별 현황", 교육과학기술부, 2009.
15 기상청 홈페이지. (http://www.kma.go.kr).
16 대한건축학회, 국토해양부 고시 건축구조기준, 대한건축학회, 2009.
17 윤현도, 김선우, 이갑원, 최창식, 이혜연, "고인성 시멘트 복합체를 사용한 끼움벽으로 보강된 비내진 상세 철근콘크리트 골조의 내진성능", 대한건축학회 논문집 제22권 5호, 2006.
18 이강석, 최호, 이원호, "현존 철근콘크리트 건물의 내진성능 평가 및 지진피해율의 상정", 대한건축학회 논문집, 제13권 1호, 2000.
19 정란, 박태원, 이수곤, "내진설계되지 않은 기존 철근콘크리트 골조구조물의 내진성능 보강효과", 대한건축학회 논문집 제20권 9호, 2004.
20 이영학, 김민숙, 변은혁, 김희철, "CFRP Sheet를 이용한 철근콘크리트 프레임면내 조적벽체의 전단내력 평가에 관한 실험적 연구", 한국지진공학회 논문집, 제14권 제1호, 2010.
21 (財)日本建築防災協会, "既存コソクリート造建築物の耐震診断 基凖․ 付解説", 新洋社, 東京, pp.1-140, 1990.
22 A. S. Elnashai, R. Pinho, "Repair and Retrofitting of RC Walls using Selective Techniques", Journal of Earthquake Engineering, vol. 2, No. 4, 1998.
23 Applied Technology Council, Seismic Evaluation and Retrofit of Concrete Buildings, vol. 1, ATC 40, 1996.
24 Chopra, A. K. and Goel, R. K., A Modal Pushover Analysis Procedure to Estimate Seismic Demands for Buildings; Theory and Preliminary Evaluation, Pacific Earthquake Engineering Research Center, University of Berkeley, 2001.