비틀림 비정형을 가지는 학교건물의 편심율에 따른 좌굴방지가새형 이력댐퍼의 제진성능분석

서지정보

ㆍ발행기관 : 한국공간구조학회 ㆍ수록지정보 : 한국공간구조학회지 / 23권 / 2호
ㆍ저자명 : 김유성, 이준호, 김기철

목차

Abstract
1. 서론
2. 비틀림 비정형
2.1 국내 내진설계기준
2.2 편심율
3. 보강 전 비선형동적해석
3.1 해석개요
3.2 해석결과
4. 보강 후 제진성능분석
4.1 보강방안
4.2 해석결과
5. 결론
감사의 글
References

영어 초록

In the case of a school building, even though it is a regular structure in terms of plan shape, if the masonry infill wall acts as a lateral load resisting element, it can be determined as a torsionally irregular building. As a result, the strength and ductility of the structure are reduced, which may cause additional earthquake damage to the structure. Therefore, in this study, a structure similar to a school building with torsional irregularity was selected as an example structure and the damping performance of the PC-BRB was analyzed by adjusting the eccentricity according to the amount of masonry infilled wall. As a result of nonlinear dynamic analysis after seismic reinforcement, the torsional irregularity of each floor was reduced compared to before reinforcement, and the beams and column members of the collapse level satisfied the performance level due to the reduction of shear force and the reinforcement of stiffness. The energy dissipation of PC-BRB was similar in the REC-10 ~ REC-20 analytical models with an eccentricity of 20% or less. REC-25 with an eccentricity of 25% was the largest, and it is judged that it is effective to combine and apply PC-BRB when it has an eccentricity of 25% or more to control the torsional behavior.

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