A Study on Seismic Response of Wooden Frame House Using Multi-Directional Ground Motion

在本研究中，我们使用垂直平面模型和三维结构模型进行了多向地震动下的动力响应分析。这些模型由构件和接头作为最小单元组成。关于垂直平面模型，我们只考虑水平或水平和垂直地面运动下的地震响应。结果如下：(1)垂直地震动对响应位移没有影响。(2)竖向地震动使柱的最大轴力增大20%左右，支撑增大5%左右。(3)考虑了节理处的变形。对于三维结构模型，我们考虑了单向或双向地震动作用下的地震反应。结果如下：(1)单向地震动作用下的响应位移矢量和（NS、EW）与双向地震动作用下的响应位移矢量和基本一致。(2)角柱的最大轴张力与单向地震动（NS或EW）的结果基本一致。双向地震动使其最大轴向力增大30%左右。

In this study, we did the dynamic response analysis under Multi-Directional Ground Motion using a Vertical Planes Model, and 3D-structure Model. These Models made up of Members and Joints as the minimum unit.1. About Vertical Planes Model, we considered the seismic response under only horizontal or horizontal and vertical ground motion. The results are as follows.(1) Vertical ground motion has not influence on Response Displacement.(2) Vertical ground motion increases Maximum Axial Force of the columns about 20%, braces about 5%.(3) And we considered about the deformation at joints.2. About 3D-structure Model, we considered the seismic response under One-Directional (NS or EW) or Bi-Directional (NS and EW) ground motion. The results are as follows.(1) The vectorial sum of Response Displacement (NS, EW) under One-Directional ground motion were almost the same as result of Bi-Directional ground motion.(2) Maximum Tensional Axial Force of the corner columns was almost the same as result of One-Directional ground motion (NS or EW). And Bi-Directional ground motion increases Maximum Axial Force of them about 30%.