Development of numerical analysis method of seismic failure behavior and reinforcement for the masonry structures

2014 Fiscal Year Final Research Report

• Project/Area Number: 24760362
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Kyoto University
• Principal Investigator: FURUKAWA Aiko 京都大学, 地球環境学堂, 准教授 (00380585)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 個別要素法 / 組積造

Outline of Final Research Achievements

The method to determine spring and damping parameters theoretically based on the idea of spatial discretization of FEM was developed. Regarding the damping model, damping acting on the gravity center of the element and that acting between the elements are considered. For the damping acting on the gravity center of the element, mass-proportional damping and local damping is modeled. For the damping acting between elements is modeled by the critical damping and the temporal stiffness-proportional damping. The DEM considering the element deformability is also developed. Due to the poisson's effect by the gravity, the horizontal compression force is generated between horizontally-adjacent elements. It is found that this compression force delays the failure of the structure.

Free Research Field

地震工学