VULNERABILITY FUNCTIONS FOR WOODEN HOUSES IN JAPAN BASED ON SEISMIC DIAGNOSIS DATA
VULNERABILITY FUNCTIONS FOR WOODEN HOUSES IN JAPAN BASED ON SEISMIC DIAGNOSIS DATA
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发表时间：
2002
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影响因子：
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通讯作者：
M. Kohiyama;F. Yamazaki
中科院分区：
文献类型：
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作者：
M. Kohiyama;F. Yamazaki
根据地震诊断资料，揭示了日本木结构房屋抗震能力的区域差异。利用地震诊断结果和加速度响应谱，提出了新的木结构房屋易损性函数。他们采用木质房屋抗震性能指标的概率密度函数，将其分为抗力指标和抗力退化的其他指标。输入地震运动是根据加速度响应谱和由阻力指标确定的自然周期来评估的。对1995年兵古县南部地震的应用结果与有地震记录的5个测点的震害统计进行了比较。虽然提出的易损性函数不是基于损失统计，但估计的损失比与地方政府调查的实际损失相当吻合。
The regional difference of seismic capacity of wooden houses in Japan is revealed based on the seismic diagnosis data. The new vulnerability functions of wooden houses, which use the results of seismic diagnosis and an acceleration response spectrum, are proposed. They employ a probability density function of seismic performance indices of wooden houses, which are separated into an index of the resistance force and other indices regarding the degradation of resistance force. The input seismic motion is evaluated based on an acceleration response spectrum and natural periods determined by the indices of resistance force. The application results to the 1995 Hyogo-ken Nanbu earthquake are compared with the damage statistics at the five sites, which have seismic records. Though the proposed vulnerability functions are not based on the damage statistics, the estimated damage ratios coincide fairly well with the actual damage surveyed by local governments.