Long span arch structure is composed of arch as relatively flexible structure and column as relatively rigid structure. In this study, the characteristic of dynamic response is analyzed according to the natural frequency ratio between arch and columns. The result of analysis for arch as relatively vertical vibration mode is dominant, the influence of columns mainly appears at relatively high frequency band according to increase of 1st mode frequency in column. However, the dynamic characteristic of arch structure is expected to vary with not only frequency ratio but interaction between vibration modes of arch and columns.

 Abstract  1. 서 론  2. 예제구조물의 개요   2.1 예제구조물의 주요 변수 설정   2.2 예제구조물의 모델링 및 해석  3. 예제구조물의 고유진동수 분석   3.1 전체구조물의 1차 모드 진동수   3.2 최대 질량참여율 모드 진동수  4. 예제구조물의 가속도응답 특성   4.1 동적하중   4.2 예제구조물 가속도응답  5. 결 론  감사의 글  참고문헌

• 석근영(영남대학교 공업기술연구소 연구원, 공학박사) | Seok, Keun-Young
• 강주원( 영남대학교 건축학부 교수, 공학박사) | 강주원