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EVALUATION OF STRUCTURAL PERFORMANCE OF EXISTING TRADITIONAL TIMBER STRUCTURES IN JAPAN BY MICROTREMOR MEASUREMENTS

通过微震测量评估日本现有传统木结构的结构性能

基本信息

批准号：
20860071
负责人：
CHIBA Kazuki
金额：
$ 1.46万
依托单位：
Tokyo University of Science
依托单位国家：
日本
项目类别：
Grant-in-Aid for Young Scientists (Start-up)
财政年份：
2008
资助国家：
日本
起止时间：
2008 至 2009
项目状态：
已结题

项目摘要

The structural integrity of the existing traditional timber structures (for instance, temples, shrines and folk dwellings) in Japan is maintained by the periodic maintenance. The evaluation of the structural performance is important to determine the necessity of repairing and maintenance. The microtremor measurement method is a simple nondestructive inspection method used to evaluate the fundamental vibration characteristics of structures. Therefore, this method is expected to play an effective role in the structural evaluation of the existing traditional timber structures. In this research, several existing traditional timber structures that differ in construction type, year of construction and building configuration are categorized into a construction type. The results of the microtremor measurements are evaluated for each category. The relationship between the natural frequency of structures obtained by the results of microtremor measurement and the maximum strength of structure calculated by structure analysis was discussed in this research. In future research, a method of seismic diagnosis by the application of microtremor measurement should be clarified.

在日本，现存的传统木结构建筑（如寺庙、神社和民居）的结构完整性是通过定期维修来保持的。结构性能的评估对于确定维修和维护的必要性具有重要意义。地脉动测量方法是一种简单的无损检测方法，用于评估结构的基本振动特性。因此，该方法有望在现有传统木结构的结构评估中发挥有效作用。在本研究中，现有的几个传统的木结构，不同的建筑类型，建设年份和建筑配置被归类为一个建筑类型。对每个类别的微动测量结果进行评估。本研究探讨了由地脉动量测结果所求得的结构自振频率与结构分析所求得的结构最大强度之间的关系。在今后的研究中，应明确应用脉动测量进行地震诊断的方法。