Spatial structures as like dome structure have the different dynamic characteristics from general rahmen structures. Therefore, it is necessary to accurately analyze dynamic characteristics and effectively control of seismic response of spatial structure subjected to multi-supported excitation. In this study, star dome structure that is subjected to multi-supported excitation was used as an example spatial structure. The response of the star dome structure under multiple support excitation are analyzed by means of the pseudo excitation method. Pseudo excitation method shows that the structural response is divided into two parts, ground displacement and structural dynamic response due to ground motion excitation. And the application of passive tuned mass damper(TMD) to seismic response control of star dome structures has been investigated. From this numerical analysis, it is shown that the seismic response of spatial structure under multiple support seismic excitation are different from those of spatial structure under unique excitation. And it is reasonable to install TMD to the dominant points of each mode. And it is found that the passive TMD could effectively reduce the seismic responses of dome structure subjected to multi-supported excitation.

1. 서론
 2. 대공간 구조물의 다중지점 지진하중 적용및 진동제어 방법
  2.1 다중지점 지진하중 적용에 의한 동적평형 방정식
  2.2 대공간 구조물의 진동제어 방법
 3. 다중지점 지진하중을 받는 돔 구조물
  3.1 예제 구조물의 동적특성
  3.2 지반특성을 고려한 지진하중 적용
  3.3 예제 구조물의 지진응답
 4. 다지점 돔 구조물의 지진응답 제어
  4.1 예제 구조물의 TMD 설계
  4.2 다지점 돔 구조물의 TMD 적용
 5. 결론
 감사의 글
 References

• 김기철(서일대학교 건축과) | Kim, Gee-Cheol
• 강주원(영남대학교 건축학부) | Kang, Joo-Won Corresponding author