Journal Search Engine

to

Search Advanced Search Adode Reader(link)
Download PDF Export Citation Korean Bibliography
ISSN : 1226-525X(Print)
ISSN : 2234-1099(Online)
Journal of the Earthquake Engineering Society of Korea Vol.30 No.1 pp.11-19
DOI : https://doi.org/10.5000/EESK.2026.30.1.011

Dynamic Response and Serviceability Assessment of a Concert Hall Through System Identification and Vision-Based Crowd Load Estimation

Lee Buyong1), Yu Eunjong2)*, Lee Sang-Hyun3), Lee Yonghun4)
1)Graduate Student, Department of Architectural Engineering, Hanyang University, 2)Professor, Department of Architectural Engineering, Hanyang University, 3)Professor, Department of Architectural Engineering, Dankook University, 4)Ph.D., Research Engineer, Dankook University

Abstract

In this study, vision-based monitoring combined with accelerometer-based measurements was conducted in a large-scale concert hall under crowd loads. First, the dynamic characteristics of the structure were identified from ambient vibrations measured in the absence of crowds. Then, an FE model was established that exhibits dynamic attributes similar to those of the structure. Subsequently, camera footage of crowd motion at a K-pop concert was used to estimate crowd loads, which were then applied to the FE model to assess responses. The acceleration response obtained from the analysis was compared with the measured acceleration and the acceptance criteria of design guidelines, such as AISC DG11. The acceleration predicted by the vision-based estimation was approximately 67% of the estimated value based on peak values and 62% of the measured value based on root mean square (RMS) values. Overall, the vision-based estimation showed a peak response around 10 Hz, while the measurement showed a gradual increase in the frequency range above 10 Hz. This is likely because low-frequency components were underrepresented in the vision-based estimation, resulting in relatively underestimated amplitudes and lower responses in the high-frequency range.

초록

     

    Figure

    Table

    Reference

    Journal Abbreviation J. Earthq. Eng. Soc. Korea
    Frequency Bimonthly
    Doi Prefix 10.5000/EESK
    Year of Launching 1997
    Publisher Earthquake Engineering Society of Korea
    Indexed/Tracked/Covered By