Heunginjimun as treasure No.1 is wooden structure of 2 story. This stucly presents an investigation on vibration characteristics of Heunginjimun in Seoul through ambient vibration test. The research team studied structural characteristics unlike general building and performed the test. Natural or environmental excitation as ambient vibration source is always present and hence the test implies a minimum interference with normal use of the structure. Natural frequencies, damping ratio and modes are identified and compared using two strategies, Frequency Domain Decomposition, Stochastic Subspace Identification techniques. The result shows that behavior and dynamic property of Heuninjimun.

• 박성아(단국대학교 대학원 건축공학과 석사과정) | Park, Sung-Ah Corresponding authol
• 민경원(단국대학교 건축대학 건축공학과 교수，공학박사) | Min, Kyung-Won
• 최재성((주)유노빅스이엔씨，책임연구원) | Choi, Jae-Seog