| Title |
A Study of the Dynamic Properties of Traditional Wooden Structure Based on Microtremor Measurement and Dead Load Measurement |
| Authors |
김원종(Kim, Won-Jong) ; 김형준(Kim, Hyung-Jun) ; 하태욱(Ha, Tae-Uk) ; 신은미(Shin, Eun-Mi) |
| DOI |
https://doi.org/10.5659/JAIK.2022.38.12.309 |
| Keywords |
Microtremor ; Dynamic Characteristics ; Natural Frequency ; Dead Load ; |
| Abstract |
The purpose of this study is to analyze how the dead load of a traditional wooden structure according to the changes of environmental
factors is related to dynamic properties of structure. For this purpose, microtremor measurements were performed once a month for one year
to calculate the monthly modal natural frequency of the target structure. Dead load of structure is measured from load cell which is installed
under each columns of structure on a hourly basis. The yearly change in dead load was estimated in consideration of the change in
environmental factors such as temperature, relative humidity, rainfall and snowfall, and it compared with the dead load measured from the
load cell. As a result, the measured dead load was found to be within the range of dead load changes. Each modal natural frequency was
kept constant regardless of the measurement time. It was found that the change in dead load was not a major factor in changing each modal
natural frequency. |