기존 모멘트골조 학교건물의 비선형 해석을 위한 적정 이력모델 평가
- Abstract
- Earthquakes in Korea became more frequent and the earthquakes that occur at Sep 12th in Gyeongju and at Nov 15th in Pohang caused a lot of damage than that has occurred previously. Such events raised awareness of the seismic safety of existing public buildings facilities. In particular, it is known that seismic retrofitting is urgently needed because most of the school facilities have not designed against seismic activity.
When efficient seismic retrofitting is performed, nonlinear dynamic analysis can be performed to improve accuracy. To apply this analysis method, it is necessary to use the hysteresis model carefully because the analysis model should have to show reasonable behavior considering the hysteresis characteristics by dynamic loads. Therefore, Reliable model should be applied to analysis model. Moreover, it is required that the report shows what hysteresis model simulates reasonable behavior.
This study was performed to identify a hysteresis model suitable for estimating behavior of the structural element when performing a nonlinear dynamic analysis to conduct seismic retrofitting of existing school buildings. First, this study compared the experimental results and analysis results of the existing non-seismic reinforced concrete frames. After the reference hysteresis model showing the most approximate behavior of the experiment was selected, the reference model and other models were applied to structural elements in the analysis model that could represent existing school buildings. Then nonlinear dynamic analysis was performed, the results were compared. Finally, it was confirmed that Pivot model is the most appropriate hysteresis model for each structural element. In addition, the limitations and considerations was organized in this study.
- Issued Date
- 2021
- Awarded Date
- 2021. 2
- Type
- Dissertation
- Publisher
- 부경대학교
- Affiliation
- 부경대학교 대학원
- Department
- 대학원 건축·소방공학부
- Advisor
- 이창환
- Table Of Contents
- I. 서론 1
1.1 연구 배경 및 목적 1
1.2 연구 내용 및 방법 3
II. 이력모델의 역할과 종류 5
2.1 기존 연구의 요약 5
2.2 거동 특성의 구현 8
2.2.1 강도 및 강성 저하 8
2.2.2 핀칭 9
2.3 이력모델의 종류 10
2.3.1 Elastic 모델 10
2.3.2 Kinematic 모델 11
2.3.3 Degrading 모델 12
2.3.4 Takeda 모델 14
2.3.5 Pivot 모델 15
2.3.6 Concrete 모델 17
III. 기준 이력모델 선정 18
3.1 목적 및 방법 18
3.2 해석 결과 및 분석 20
3.2.1 Lee의 골조(a) 21
3.2.1.1 하중-변위 관계 22
3.2.1.2 에너지 소산 22
3.2.1.3 최대강도 및 초기강성 24
3.2.2 Oh의 골조(a) 25
3.2.2.1 하중-변위 관계 26
3.2.2.2 에너지 소산 26
3.2.2.3 최대강도 및 초기강성 28
3.2.3 Oh의 골조(b) 29
3.2.3.1 하중-변위 관계 30
3.2.3.2 에너지 소산 30
3.2.3.3 최대강도 및 초기강성 31
3.2.4 T.S의 골조 33
3.2.4.1 하중-변위 관계 34
3.2.4.2 에너지 소산 34
3.2.4.3 최대강도 및 초기강성 35
3.2.5 Lee의 골조(b) 37
3.2.5.1 하중-변위 관계 38
3.2.5.2 에너지 소산 38
3.2.5.3 최대강도 및 초기강성 39
3.3 소결 41
IV. 비선형 동적 해석 43
4.1 해석모델 43
4.2 지진파 47
4.3 해석결과 및 분석 49
4.3.1 비선형 정/동적 해석결과 비교 49
4.3.2 전체 구조물 50
4.3.3 기둥 부재 56
4.3.4 보 부재 62
4.3.5 적정 이력모델의 평가 66
4.4 소결 68
V. 결론 70
참고 문헌 72
- Degree
- Master
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