In this study, the seismic performance and behavior characteristics of the upper truss structure of the large stadium are analyzed by nonlinear dynamic analysis. In the nonlinear dynamic analysis, the earthquake records were generated by site response analysis to simulate the nonlinear behavior of the relevant soil condition where the structure is located. Nonlinear dynamic analysis was performed using Perform-3D and the nonlinear properties of the substructure and the superstructure were determined in accordance with KISTEC guideline. According to the analysis results, excessive deformation occurred in the upper truss element, and plastic hinges exceeded the target performance in some members. Buckling-restrained brace is used for seismic retrofit of stadium structures and the analysis results shows the interstory drift satisfies the target performance level with dissipating the seismic energy efficiently.

Abstract
 1. 서론
 2. 예제 대공간 구조물 내진 성능 평가
  2.1 예제 구조물 개요
  2.2 입력 지진파 산정
  2.3 비선형 동적 해석에 의한 내진 성능 평가
 3. 비좌굴 가새를 이용한 내진 보강
 4. 결론
 References

• 문희숙(메트로티엔씨(주) 내진기술연구소 선임연구원) | Moon Hee-Suk (Metro T&C Co., Ltd.)
• 김기철(서일대학교 건축공학과) | Kim Gee-Chul (School of Architecture, Seoil University)
• 강주원(영남대학교 건축학부) | Kang Joo-Won (School of Architecture, Yeungnam University)
• 이준호(메트로티엔씨(주) 내진기술연구소) | Lee Joon-Ho (Metro T&C Co., Ltd.) 교신저자