Large spatial structures can not easily predict the dynamic behavior due to the lack of construction and design practices. The spatial structures are generally analyzed through the numerical simulation and experimental test in order to investigate the seismic response of large spatial structures. In the case of analysis for seismic response of large spatial structure, the many studies by the numerical analysis was carried out, researches by the shaking table test are very rare. In this study, a shaking table test of a small-scale arch structure was conducted and the dynamic characteristics of arch structure are analyzed. And the dynamic characteristics of arch structures are investigated according to the various column cross-section and length. It is found that the natural vibration periods of the small-scaled arch structure that have large column stiffness are very similar to the natural vibration period of the non-column arch structure. And in case of arch structure with large column stiffness, primary natural frequency period by numerical analysis is very similar to the primary natural frequency period of by shaking table test. These are because the dynamic characteristics of the roof structure are affected by the column stiffness of the spatial structure.

This paper is concerned with the natural periods of ambient vibration and eigenvalue analysis. Ambient vibration tests were conducted to four bearing-wall reinforced concrete buildings ranging from twelve to nineteen stories. The performance of modeling in eigenvalue analysis was investigated using consideration of rigidity out of the plane in the slab and the non-structural bearing wall. Measured natural period was also compared with the value by the KBC2005. Natural period of the short direction in eigenvalue analysis is well fitted with the measured one. In the other hand, Natural period of the long direction in eigenvalue analysis is slightly more overestimated than the measured one. Natural period of the long direction in eigenvalue analysis was found to be enhanced by considering the effect of the stiffness out of the plane of the slab and non-structural wall in the structural modeling.

구조물의 내진설계는 일반작으로 설계시방서의 스펙트 럼 을 이용하여 이 루 어지고 있다 각 시방서에서 제시 된 스펙트럼은 여러지역에서 발생한 지진파룹을 최대 지반가속도로 정규화하여 평탄한 응답을 구 하였으며， 구조볼의 특성에 따라 증 감하여 사용하고 있다. 구조물은 지진하증에 의하여 소성변형을 호이고 있으며， 이러 한 구조울의 소성변형 능랙을 _J!.려하여 설계시 l앙서에서 는 응낚수정겨l 수룹 사용하고 있다 그러 나， 이러한 응 답수정세수는 오븐 二i L조윤의 고유진동주기에 대하여 열 정 한 값으로 사용되고 있다. 본 연 구에서는 각각의 지진파에 대하여 20 7H 의 인 상지진파륜 사성하여 평탄한 응 답스펙트럼윤 구하였다. 구하여진 평균 응담 스펙트렌플 사용하여 구조뭇의 초기항꾀-강도와 감쇠월-의 효파를 측정하였으며， 회기분석 을 통하여 내진섣계시 각 구조불에 요구되는 변위연성도-륜 얻기위한 강도계수륜 추정하였다. 또 한 현재 사용 되고 있는 섣계시 1앙서의 응답수정계수륜 'IL조붉 고유전 동 주기의 함수토 나타내었다.

To evaluate the Natural Period of 5 Story Wooden Pagoda in Korea, vibration test was carried out with the microtremors and synchronized human excitation. The natural period and damping constants were obtained and compared with previous research. From the comparison results, the first natural period of tested 5 Story Wooden Pagoda showed similar value with previous research, and many natural period is occurred.