Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
권호 표지
DOI QR코드

DOI QR Code

Dynamic Characteristics Evaluation of Long-span Full-scale Modernized Hanok Through Field Vibration Test

현장진동실험에 의한 장경간 실물 현대한옥의 동적특성 평가

  • Kim, Yeong-Min (College of Architecture, Myongji University) ;
  • Lee, Shag-Hyun (Department of Architectural Engineering, Dankook University) ;
  • Mun, Dea-Ho (Department of Architectural Engineering, Dankook University)
  • Received : 2022.10.06
  • Accepted : 2022.12.01
  • Published : 2022.12.30
⟨ Previous Next ⟩

Abstract

In this study an ambient vibration test, impact hammer test, and human excitation tests on a long-span full-scale modernized Hanok, which is one of the Korean traditional architectural structures were performed to identify its modal characteristics. Test results showed that the first two fundamental modes were beam and dori directional translation modes and the natural frequencies were 3.85Hz and 4.90Hz respectively. These values were larger than about 1.8-3.5 times in the first translation modes in similar-sized Korean traditional Hanoks. The increase of natural frequencies was mainly due to the significant decrease of the roof weight in modernized Hanok construction in spite of the stiffness reduction resulting from column-free long-span. The damping ratios of the translation modes were in the range of 2.5-3.5% and these values were similar to damping ratios of 1.5-4.5% measured in a traditional Hanok. Considering that the damping ratios of the building structures had amplitude dependent characteristics, the damping ratios of the Hanok structures were approximately two times larger than those of general RC or steel structures showing similar amplitude dynamic responses.

Keywords

Acknowledgement

본 연구는 국토교통부 도시건축연구사업(한옥기술개발 3단계, 21AUDP-B128638-05)과 한국연구재단의 대학중점연구소지원사업(NRF_2018R1A6A1A0702581922)의 지원을 받아 수행되었습니다.

References

  1. Han, J.S., & Kim, C.J. (2005). An experimental study on mechanical performance of tenon for analysis of structural system and modernization of traditional wooden architecture, Journal of the Architectural Institute of Korea Planning & Design Section, 21(4), 121-128.
  2. Hwang, J.K., Hong, S.G., Lee, Y.W., & Jung, S.J. (2009). Natural frequency characteristics of traditional wooden structure for vibration amplitude, Journal of the Architectural Institute of Korea : Structure & Construction Section, 25(5), 3-10.
  3. Hwang, J.S., Hwang, J.K., & Lee, Y.W. (2013). The estimation of natural period of one story traditional wooden structures by in-situ measurement, Journal of the Regional Association of Architectural Institute of Korea, 15(6), 219-226.
  4. KDS 41 90 32 (2019). Korean design standard for small building-Traditional Timber Structure.
  5. KDS 41 17 00 (2019). Korean design standard for seismic design of building.
  6. Kim, H.W., Lee, J.H., Park, B.C., & Lee, W.H. (2010). Seismic capacity evaluation of the traditional wooden structure using capacity spectrum and seismic index, Journal of the Architectural Institute of Korea : Structure & Construction Section, 26(9), 3-14.
  7. Kim, H.W., Lee, J.H., Park, B.C., & Lee, W.H. (2016). Fundamental period formulas for the Korean-style house using ambient vibration, Journal of The Korean Society of Hazard Mitigation, 16(3), 281-289.
  8. Kim, Y.M., & Lee, S.G. (2013). Evaluation of connection stiffness of test-bed Hanok using a 1/4 scale two-storied model, Journal of the Architectural Institute of Korea : Structure & Construction Section, 29(12), 73-80.
  9. Kim, Y.M. (2015). Evaluation of Structural Performance and Dynamic Characteristics of Korean Traditional Timber Structure Sungnyemun, Journal of the Computational Structural Engineering Institute of Korea, 28(6), 607-614. https://doi.org/10.7734/COSEIK.2015.28.6.607
  10. Kim, Y.M., Lee, S.G., & Lee, S.H. (2015). Evaluation of effective lateral stiffness of a Korean-traditional wooden house with new joint types, Engineering Structures, 94, 113-121.
  11. Kim, Y.M. (2019). An evaluation scheme of torsional irregularity for seismic design of Hanok, Journal of the Architectural Institute of Korea, Structure & Construction Section, 35(10), 191-198.
  12. Kim, Y.M., Kim, Y.M., Kim, H.J., Ha, T.U., Shin, E.M., & Kim. W.J. (2021). Analysis of roof load and dynamic characteristics of traditional timber building considering column axial force and ambient vibration measurement, Journal of the Architectural Institute of Korea, 37(11), 271-280.
  13. Lee, G.Y., Lee, S.M., Kim, S.Y., & Lee, K.H. (2019). Structural safety evaluation of Yangjindang in Sang-ju using vibration characteristics, Journal of Korean Association of Spatial Structures, 19(1), 37-44. https://doi.org/10.9712/KASS.2019.19.1.37
  14. Lee, M.W., & Kim, Y.M. (2020). Development of automated evaluation system for torsional irregularity of Hanok, Journal of the Architectural Institute of Korea, 36(8), 173-180. https://doi.org/10.5659/JAIK.2020.36.8.173
  15. Lee, M. W., & Kim, Y. M. (2021). Comparative review on the horizontal strength of traditional timber structures according to frame types, Journal of the Architectural Institute of Korea, 37(7), 183-194.
  16. Lee, M.W., & Kim, Y.M. (2022). Evaluation of torsional irregularity of Korean traditional timber house according to plan type, Journal of the Architectural Institute of Korea, 38(7), 247-254.
  17. Lee, S.G., Kim, Y.M., Roh, J.E., & Lee, S.H. (2013). Dynamic characteristics of traditional and new Korean-style houses according to excitation amplitude, Journal of the Architectural Institute of Korea : Structure & Construction Section, 29(2), 49-58.
  18. Lee, Y.W., Hong, S.G., Hwang, J.K., & Bae, B.S. (2007). Capacity of lateral load resistance of Dori-directional frame with Jangbu-connection in traditional wood structure system, Journal of the Architectural Institute of Korea : Structure & Construction Section, 23(2), 35-42.
  19. Lim, Y.J., Hong, Y.P., & Yi, W.H. (2005). Evaluation of Damping Ratio of Traditional Wooden Architecture by Synchronized Human Excitation, Proceedings of the Outstanding Graduation Thesis of Architectural Institute of Korea, 93-96.
  20. Myongji University Industry and Academic Cooperation Foundation(MJU IACF). (2021). Final Report on the Development of Structural Technology for Large-span Hanok.
  21. National Disaster Management Research Institute (NDMI) (2010). Development of the Seismic Capacity Evaluation Manual on Wooden Structures.
  22. Park, B.S., Kim, Y.M., Hur, M.W., & Lee, S.H. (2020). Conceptual application schemes of seismic isolation techniques to Hanok, Journal of the Architectural Institute of Korea, Structure & Construction Section, 36(1), 137-146.
  23. Suzuki, Y., & Maeno, M. (2006). Structural Mechanism of Traditional Wooden Frames by Dynamic and Static Tests, Structural Control and Health Monitoring, 13(1), 508-522. https://doi.org/10.1002/stc.153
  24. Tamura, Y., & Suganuma, S. (1996). Evaluation of amplitude-dependent damping and natural frequency of buildings during strong winds, Journal of Wind Engineering and Industrial Aerodynamics, 59, 115-130. https://doi.org/10.1016/0167-6105(96)00003-7
  25. Yoon, W.K. (2011). Evaluation of Vibration Characteristics of Jinnamkwan, Proceedings of the Earthquake Engineering Society of Korea, 105-111.