등가 모델을 이용한 대공간 구조물의 동적 거동 특성에 관한 연구

초록

The earthquake-resistant structural system have to ensure the sufficient stiffness and ductility for the stability. For those purposes, recently, the performance design concept to increase the degree of absorbed energy level of structures has been porposed. One practical way of the performance design in the spatial structures is to apply the isolation system to boundary parts of roof system and sub-structure to obtain the target performance. So, it is necessary to examine the characteristics of dynamic behavior of spatial structures governed by higher modes rather than lower modes different from the cases of high rise building. The objectives of this paper are to develop the equivalent lumped mass model to simplify the analytical processes and to investighte the dynamic behavior of roof system according to the mass and stiffness of sub-structures as a fundamental study of performance design for the spatial structures.