Local seismic response studies in the north-western portion of the August 24th, 2016 Mw 6.0 earthquake affected area. The case of Visso village (central Apennines)
Local seismic response studies in the north-western portion of the August 24th, 2016 Mw 6.0 earthquake affected area. The case of Visso village (central Apennines)
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2016年8月24日Mw 6.0地震灾区西北部局部地震响应研究。
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
M. Moscatelli
中科院分区：
文献类型：
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作者：
I. Gaudiosi;G. Vignaroli;P. Sirianni;S. Giallini;F. Mori;F. Polpetta;R. Razzano;M. Simionato;M. Moscatelli
在这项工作中，我们调查了在Visso村（亚平宁山脉中部，距离2016年8月24日Mw6.0地震震中以北约28公里）观察到的差异破坏的可能原因。根据1：10.000比例尺的现有地质制图的见解，在受损地区进行了初步的地球物理调查，以限制底土岩石类型的几何形状和范围。然后，这些结果已被用来检索的Vs配置文件接近最严重受损的建筑物。后者已被用来作为输入的数值分析，旨在推导出在研究区域的地面运动。特别是，已经通过EERA代码进行了线性等效模拟，并且已经获得了对2016年8月24日斯波莱托蒙特卢科（SPM）现场主震期间记录的时间历史进行卷积的波形。我们的初步结果表明，可能的相关性的损害的厚度和形状的地质单元。然而，根据EMS 98指南，需要进一步分析以突出任何二维盆地和/非线性土壤行为效应，以便将其与固有建筑物脆弱性进行比较。
In this work, we investigate the possible causes of the differential damaging observed in Visso village (central Apennines, about 28 km north from the August 24th, 2016 Mw 6.0 earthquake epicenter). Following insights from the available geological cartography at 1:10.000 scale, a preliminary geophysical survey has been performed in the damaged area in order to constrain geometries and extent of the subsoil lithotypes. Then, these results have been used to retrieve a Vs profile close to the most heavily damaged buildings. This latter has been used as input for a numerical analysis aimed at deriving the motion at the ground level in the study area. In particular, a linear equivalent simulation has been performed by means of EERA code and the waveform has been obtained convolving the time history recorded during the August 24th, 2016 mainshock at Spoleto Monteluco (SPM) site. Our preliminary results indicate a possible correlation of damaging to the thickness and shape of the geological units. Nevertheless, further analyses are necessary to highlight any 2D basin and / non - linear soil behaviour effects in order to compare them to the intrinsic buildings vulnerability, according to the EMS98 guidelines.