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首页> 外文期刊>Bulletin of earthquake engineering >Damage to residential buildings in HveragerA degrees i during the 2008 A-lfus Earthquake: simulated and surveyed results
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Damage to residential buildings in HveragerA degrees i during the 2008 A-lfus Earthquake: simulated and surveyed results

机译：在2008年A-lfus地震中对HveragerA级i住宅楼的破坏：模拟和调查结果

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摘要

This study analyses the performance of residential buildings in the town of HveragerA degrees i in South Iceland during the 29 May 2008 Mw 6.3 A-lfus Earthquake. The earthquake occurred very close to the town, approximately 3-4 km from it. Ground shaking caused by the earthquake was recorded by a dense strong-motion array in the town. The array provided high-quality three-component ground acceleration data which is used to quantify a hazard scenario. In addition, surveys conducted in the town in the aftermath of the earthquake have provided information on macroseismic intensity at various locations in the town. Detailed information regarding the building stock in the town is collected, and their seismic vulnerability models are created by using building damage data obtained from the June 2000 South Iceland earthquakes. Damage to buildings are then simulated by using the scenario hazard and vulnerability models. Damage estimates were also obtained by conducting a survey. Simulated damage based on the scenario macroseismic intensity is found to be similar to damage estimated from survey data. The buildings performed very well during the earthquake-damage suffered was only 5 % of the insured value on the average. Correlation between actual damage and recorded ground-motion parameters is found to be statistically insignificant. No significant correlation of damage was observed, even with macroseismic intensity. Whereas significant correlation was observed between peak ground velocity and macroseismic intensity, neither of them appear to be good indicators of damage to buildings in the study area. This lack of correlation is partly due to good seismic capacity of buildings and partly due to the ordinal nature of macroseismic intensity scale. Consistent with experience from many past earthquakes, the survey results indicate that seismic risk in South Iceland is not so much due to collapse of buildings but rather due to damage to non-structural components and building contents.
机译：这项研究分析了2008年5月29日Mw 6.3一次A-lfus地震在冰岛南部HveragerA度i镇的居民住宅的性能。地震发生在距离城镇约3-4公里的非常靠近的城镇。地震引起的地面震动是由该镇密集的强运动阵列记录的。该阵列提供了高质量的三分量地面加速度数据，这些数据用于量化危险情况。此外，地震后在该镇进行的调查还提供了该镇各个地点的宏观地震烈度信息。收集了有关城镇建筑存量的详细信息，并使用从2000年6月南冰岛地震中获得的建筑物破坏数据创建了其地震脆弱性模型。然后，通过使用场景危害和脆弱性模型来模拟建筑物的损坏。损害估计也通过进行调查获得。发现基于情景宏观地震烈度的模拟破坏与根据调查数据估算的破坏相似。在遭受地震破坏时，这些建筑物的性能非常好，仅为平均保险价值的5％。发现实际损坏与记录的地面运动参数之间的相关性在统计上不重要。即使在大地震强度下，也未观察到损伤的显着相关性。尽管观测到的峰值地面速度与大地震强度之间存在显着的相关性，但它们都不是研究区域建筑物受损的良好指标。这种缺乏相关性的部分原因是建筑物的抗震能力强，另一部分是由于宏观地震烈度标度的序数性质。根据过去多次地震的经验，调查结果表明，冰岛南部的地震风险不是由于建筑物倒塌，而是由于对非结构性组件和建筑物内容物的损坏。

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