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首页> 外文期刊>Bulletin of the New Zealand Society for Earthquake Engineering >DAMAGE RATIOS FOR PLANT, EQUIPMENT AND STOCK IN THE 1987 EDGECUMBE, NEW ZEALAND EARTHQUAKE
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DAMAGE RATIOS FOR PLANT, EQUIPMENT AND STOCK IN THE 1987 EDGECUMBE, NEW ZEALAND EARTHQUAKE

机译：1987年新西兰地震边缘造成的工厂，设备和存货的损坏比率。

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摘要

This paper describes an analysis of damage costs to commercial and industrial equipment (plant) and stock in the M_w=6.6 Edgecumbe, New Zealand, earthquake of 2 March 1987. The damage costs were converted to damage ratios by dividing by the value of the relevant property parcel. The mean value and statistical distribution of damage ratios were found for various classes of equipment and stock in the MM7 and MM9 intensity Zones. The lognormal distribution generally fitted the data well. Equipment and stock are much more variable in nature than modern buildings, and in large part are not designed for earthquakes. In this study they were analysed in subsets formed by classification according to Use (i.e. shops, offices, halls, residential or industrial) and Vulnerability (i.e. Robust, Medium or Fragile). These classifications provided useful insights into variations in the damage ratio. The overall mean damage ratio, D_(rm), for stock was considerably higher than tor equipment, even though D_(rm) for Fragile equipment was higher than D_(rm) for Fragile stock. This occurred because the proportion of stock that was Fragile was much larger than the corresponding proportion of equipment. The proportional difference in damage levels between Fragile and Robust property was greater at intensity MM7 than at MM9. This is consistent with the definitions of the Modified Mercalli scale. A comparison of the damage to equipment and buildings showed that, at MM9, the mean and distribution of damage ratios for Medium vulnerability equipment are similar to those for the associated single storey, post-code (1935+) commercial and industrial buildings.
机译：本文描述了1987年3月2日新西兰M_w = 6.6 Edgecumbe地震对工商业设备（工厂）和库存造成的损失成本的分析。通过除以相关值，将损失成本换算为损失比率。物业包裹。在MM7和MM9强度区域中，发现了各种类别的设备和存货的损坏率的平均值和统计分布。对数正态分布通常很好地拟合了数据。与现代建筑相比，自然界中的设备和存货变化更大，而且大部分不是为地震而设计的。在这项研究中，根据使用情况（即商店，办公室，大厅，住宅或工业）和脆弱性（即稳健，中等或脆弱）分类对子集进行了分析。这些分类为破损率的变化提供了有用的见解。尽管易碎设备的D_（rm）高于易碎股票的D_（rm），但库存的总体平均损坏率D_（rm）大大高于tor设备。发生这种情况是因为易碎的库存比例远大于相应设备的比例。强度MM7的易碎性和鲁棒性之间的损坏程度的比例差异大于MM9的情况。这与修改后的Mercalli量表的定义一致。对设备和建筑物的损坏的比较表明，在MM9级别，中等漏洞设备的损坏率的平均值和分布与相关的单层，邮政编码（1935+）商业和工业建筑物的平均值和分布相似。

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