Two sets of modal testing have been conducted for a layered stone pagoda with different boundary conditions. It is observed that the horizontal deflection mode of the pagoda system has a set of double modes which may be a rocking mode and a sliding mode. Due to the larger area of the base stone, the frequencies of the structural system are very sensitive with the ground surface conditions, while its mode shapes are not.

• 남원민(경남대학교 첨단공학과, 석사과정) | Nam, Won Min
• 김병화(경남대학교 토목공학과 부교수, 공학박사) | Kim, Byeong Hwa 교신저자