3次元地盤震動解析と多数シナリオの構造物応答解析による都市地震シミュレーション (original) (raw)
2015, Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))
Related papers
要素変形を考慮に入れた個別要素法による組積造壁の地震時挙動解析
Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM)), 2012
**博(工) 京都大学大学院工学研究科 准教授 (〒615-8540 京都市西京区京都大学桂) **京都大学大学院工学研究科修士課程 (〒615-8540 京都市西京区京都大学桂) ***博(工) 京都大学大学院工学研究科 教授 (〒615-8540 京都市西京区京都大学桂) ****立命館大学歴史都市防災研究センター教授 (〒603-8341 京都府京都市北区小松原北町 58) In this study, we propose a method to consider deformability of elements for a failure analysis of masonry structures using the DEM. In the original DEM, the deformability of the structure can be modeled by overlapping between rigid elements, but Poisson's effect cannot be modeled. In the proposed method, an element is divided into two parts, an inner part to consider deformation of the element itself, and an outer part to deal with contact between elements. The stiffness of the inner part is modeled using the stiffness matrix of the finite element method. When two elements are continuous or in contact, springs are set between the elements and the spring constants are estimated based on the original DEM and the length of the outer part. The validity of the method is confirmed through the comparison of elastic deformation with the FEM. It is found that the original DEM and the proposed method show different failure patterns, and considering the deformability of element is found to be necessary.
Journal of Japan Society of Civil Engineers, Ser. F3 (Civil Engineering Informatics), 2013
Loading Preview
Sorry, preview is currently unavailable. You can download the paper by clicking the button above.