• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Soil Dynamics and Earthquake Engineering >A GIS-based earthquake damage assessment and settlement methodology
【24h】

A GIS-based earthquake damage assessment and settlement methodology

机译：基于GIS的地震破坏评估和解决方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Earthquakes have a greater effect on society than most people think. These effects range from structural damages to economic impacts and fatalities. An earthquake only lasts for a few seconds and the aftershocks may continue for days, but the damage does continue for years. Residential site safety and earthquake damage assessment studies play a crucial role in developing reliable rehabilitation and development programs, improving preparedness and mitigating losses in urbanized areas. The extremely densely populated metropolis of Tehran, which totals of 7,768,561 for 22 districts (according to the 2006 population census), coupled with the fragility of houses and infrastructure, highlight the necessity of a reliable earthquake damage assessment based on essential datasets, such as building resistance attributes, building population, soil structures, streets network and hazardous facilities. This paper presents a GIS-based model for earthquake loss estimation for a district in Tehran, Iran. Damages to buildings were calculated only for the ground shaking effect of one of the region's most active faults, the Mosha Fault in a likely earthquake scenario. Earthquake intensity for each building location was estimated based on attenuation relation and the ratio of damage was obtained from customized fragility curves. Human casualties and street blockages caused by collapsed buildings were taken into account in this study, as well. Finally, accessibility verification found locations without clear passages for temporary settlements by buildings via open streets. The model was validated using the 2003 Bam earthquake damages. The proposed model enables the decision-makers to make more reliable decisions based on various spatial datasets before and after an earthquake occurs. The results of the earthquake application showed total losses as follows: structural damages reaching 64% of the building stock, a death rate of 33% of all the residents, a severe injury rate reaching 27% of the population and street closures upwards of 22% due to building collapse.
机译：地震对社会的影响比大多数人想象的要大。这些影响范围从结构破坏到经济影响和死亡。地震仅持续几秒钟，余震可能持续数天，但破坏的确持续了数年。住宅用地安全和地震破坏评估研究在制定可靠的重建和开发计划，改善备灾和减轻城市化地区的损失方面发挥着至关重要的作用。德黑兰人口非常稠密，根据22个地区的总数为7768561（根据2006年的人口普查），加上房屋和基础设施的脆弱性，突出说明了必须根据建筑等基本数据集进行可靠的地震破坏评估的必要性抗性属性，建筑物人口，土壤结构，街道网络和危险设施。本文提出了一种基于GIS的伊朗德黑兰地区地震损失估算模型。仅针对该地区最活跃的断层之一-可能发生地震的莫沙断层的地震动效应来计算建筑物的损坏。根据衰减关系估算每个建筑物位置的地震强度，并根据定制的脆性曲线获得破坏率。这项研究还考虑了倒塌建筑物造成的人员伤亡和街道阻塞。最后，可访问性验证发现建筑物没有明确通道，无法通过开放的街道临时安置这些建筑物。该模型使用2003年的Bam地震损失进行了验证。所提出的模型使决策者能够在地震发生之前和之后基于各种空间数据集做出更可靠的决策。地震的结果表明，总损失如下：结构破坏达到建筑存量的64％，死亡率为所有居民的33％，严重伤害率达到人口的27％，街道封闭率高达22％由于建筑物倒塌。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号