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http://dx.doi.org/10.7734/COSEIK.2019.32.4.205

Identification of Dynamic Characteristics and Numerical Analysis of Ceiling System Considering Collision Adjacent Structures  

Jeon, Min-Jun (Department of Architectural Engineering, DanKook Univ.)
Ju, Bo-Geun (Department of Architectural Engineering, DanKook Univ.)
Cho, Bong-Ho (Department of Architectural Engineering, Ajou Univ.)
Lee, Sang-Hyun (Department of Architectural Engineering, DanKook Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.32, no.4, 2019 , pp. 205-213 More about this Journal
Abstract
In the Pohang Earthquake in 2017, considerable damage to non-structural elements, such as ceiling systems, exterior finishes, and curtain walls, was reported; thus, the seismic designs of non-structural elements are important. In this study, the modal characteristics of a ceiling system were investigated through the impact hammer test. The frequency and damping ratio according to the length of the hanger bolt were identified. In addition, collision experiments were conducted to obtain the impact duration for exactly considering the impact effects of the ceiling against a wall or other adjacent elements. Based on the identified dynamics and impact duration of the ceiling system, the seismic responses of the ceiling system were obtained numerically in case of collision. Numerical simulation results show that the impact load tends to increase with the clearance between the ceiling and adjacent elements, and is not correlated with the length of the hanger bolt.
Keywords
ceiling system; non-structural elements; length of hanger bolt; clearance; impact force;
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  • Reference
1 Architectural Institute of Korea (2018) Site Inspection and Damage Investigation of Buildings by Earthquakes in Gyeongju and Pohang, Architectural Institute of Korea.
2 Architectural Institute of Korea (2016) Korean Building Code, Architectural Institute of Korea.
3 American Society of Civil Engineers (2010) Minimum Design Loads and Associated Criteria for Buildings and Other Structures(ASCE/SEI 7-16), ASCE.
4 Ministry of Land, Infrastructure, Transport and Tourism, Japan (2013) Public Notice No.771, MLIT.
5 Korea Institute of Civil Engineering and Building Technology (2019) KDS 41 17 00, Korea Construction Standards Center.
6 Gilani, A.S.J., Takhirov, S.M., Tedesco, L.M. (2013) Seismic Evaluation of Suspended Ceiling Systems using Static and Dynamic Procedures, Struct. Congr. 2013: Bridging Your Passion with Your Profession, pp.1523-1532.
7 Sato, Y., Motoyui, S., MacRae, G.A., Dhakal, R.P. (2011) Ceiling Fragility of Japanese Ceiling Systems, Pro. Ninth Pacific Conf. Earthq. Eng.
8 Mun, D.H., Hwang, J.S., Lee, S.H. (2018) Comparison of Modal Parameters According to the Magnitude of Wind-induced Dynamic Response of the 5-story Structure, Proc. WEIK Symp., 21, pp.53-55