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

木结构房屋多向地震动响应研究

基本信息

批准号：
10650559
负责人：
SASAGAWA Akira
金额：
$ 1.79万
依托单位：
Shinshu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650559/
关键词：
timber structure wooden post and beam frame brace multi-direction response analysis seismic analysis 木造軸組構法筋かり

项目摘要

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%.

本研究利用垂直平面模型及三维结构模型，进行多向地震动作用下之动力反应分析。这些模型由杆件和节点作为最小单元组成。在竖向地震模型中，考虑了水平地震动和水平竖向地震动共同作用下的地震反应。结果如下。(1)竖向地震动对反应位移没有影响。(2)竖向地震动使柱的最大轴力增加约20%，支撑的最大轴力增加约5%. (3)并考虑了节点处的变形.对于三维结构模型，我们考虑了单向（NS或EW）和双向（NS和EW）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反应位移矢量之和（NS、EW）与双向地震动作用下的结果基本相同。(2)在单向地震作用下，角柱的最大轴向拉力与水平地震作用下的最大轴向拉力基本相同。双向地震动作用下，最大轴力增加约30%。