A Survey for Aseismic Ability Criteria of Wooden Structures based on Earthquake Disaster Distribution

地震灾害危险性的估计应建立在由经验和实验数据给出的正确的地震活动性的基础上。在日本，地震灾害的历史记载在许多文献上已有一千多年的历史。日本气象厅每月公布的其他实验性地震记录，是研究日本及其邻近地区地震活动的重要基础资料。数据库系统在普通个人计算机上组成，数据可以从其他任意站点使用。在1995年兵库县南部地震和2000年鸟取县西武地震中，大量的木结构房屋遭受了严重的破坏。本文通过对淡路岛三个地区或日本中部日野、约纳戈、新见三个町木结构房屋倒塌或损坏情况的全面调查，按木结构房屋的七类结构特征，对木结构房屋的损坏指标进行了评价，并将抗震能力标准作为木结构房屋的损坏指标进行了评价。损伤指标的影响因素是木结构的类别，如结构的类型和尺寸、层数、用途、平面等，有效地评价了这些因素对木结构损伤指标的贡献。

The estimation of earthquake hazard risk should be based upon the correct earthquake activities given from both empirical and experimental data. In Japan, historical earthquake hazards were recorded on many documents for more than a thousand year. Other experimental earthquake records were published from the Japan Meteololgic Agency by monthly, and these records are important basic data for earthquake activities in or near Japan. Database system is composed on the normal personal computer and the data can be used from another arbitrary station.A great number of wooden houses suffered from severe damage by Hyogoken Nanbu Earthquake 1 995 or by receent Tottoriken Seibu Earthquake 2000.>From the total investigation of collapsed or damaged wooden houses in three districts in Awaji island or Towns of Hino, Yonago and Niimi in Chugoku District, damage indices of wooden houses are evaluated in the terms of seven categories of there structural characteristics.Asseismic ability criteria is evaluated as a damage index of wooden structues. The factors of the damage index are categries of wooden structres, such as type and dimensions of structure, numbers of story, usage, plan and etc. The contribution of these factors to damage index of wooden structure is efficiently evaluated.