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Title |
Analysis of Scaling Factor applied to Lab-Scale Model for Estimating Dynamic Characteristics of Real Structures
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Authors |
박건(Gun Park) ; 윤형철(Hyungchul Yoon) ; 김성보(Sung Bo Kim) |
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DOI |
https://doi.org/10.11112/jksmi.2021.25.1.59 |
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Keywords |
상사비; 축소모델; 진동대실험; 지진; 진동특성 Scaling Factor; Lab-Scale Model; Shaking Table Test; Earthquake; Dynamic Characteristics |
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Abstract |
The earthquakes are the natural disasters that can cause the most serious damage to civil structures. Therefore, various studies are being conducted to secure the safety of structures against earthquakes. Most studies on the safety or mechanism of civil structures during earthquakes are being conducted based on lab scale test, because real structure tests are impossible when considering the scale of civil structures. The scaling factor proposed by Iai is mainly cited, but when applying the scaling factor proposed by Iai, there are many difficulties in selecting the structural members necessary for the production of the lab scale model. This is because when applying the scaling factor proposed by Iai, the scaling factor must be applied to the elastic modulus, which is the material property of the structure. Therefore, a new method based on Iai’s ’s similarity law for determining scale factor is applied in this study where the material property of real structure is same as that of lab-scale model. Through the results of this study, it is considered that the characteristics of the structure calculated through the lab scale model test can more accurately reflect the characteristics of the real structure.
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