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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Orthodontic arch wires for seismic risk reduction
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Orthodontic arch wires for seismic risk reduction

机译：正畸弓丝降低地震风险

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摘要

Earthquakes are naturally occurring events demonstrating the power of nature and the catastrophic impact of such power on normal life. Development of new techniques and opting for new materials which are not traditionally used in civil-engineering structures, offer significant promise in reducing seismic risk. Super-elastic Nitinol in the form of wires (orthodontic wires) is a common and well-known engineering material available with dentists all over the world. It belongs to the class of shape memory alloys (SMAs) bearing unique properties such as super elasticity and shape memory effect. The greater flexibility of the material drives many of its applications in the medical industry, but the use of this material in other fields is less known. This communication seeks the suitability of this material for structural applications, especially earthquake risk reduction. A study has been conducted to find the suitability of orthodontic wires in passive vibration control of structures. The super-elastic properties found in these wires are made use of in the development of vibration control devices of re-centering type. Protection of structures from damage during earthquakes can be addressed using passive protection devices designed to provide energy dissipation with re-centering capabilities. Possible application lies in reducing the seismic risk of multi-span bridges, rehabilitation of heritage structures and protection of special structures of national importance.
机译：地震是自然发生的事件，表明自然的力量以及这种力量对正常生活的灾难性影响。新技术的开发和选择传统上不用于土木工程结构的新材料，为降低地震风险提供了巨大希望。线材（正畸线材）形式的超弹性镍钛诺是世界各地牙医普遍可知的工程材料。它属于形状记忆合金（SMA）类别，具有独特的特性，例如超弹性和形状记忆效果。这种材料的更大灵活性推动了其在医疗行业中的许多应用，但是这种材料在其他领域的使用却鲜为人知。该通讯寻求该材料在结构应用中的适用性，尤其是降低地震风险。已经进行了一项研究以发现正畸线在结构的被动振动控制中的适用性。这些线材中发现的超弹性特性可用于重新定心型的振动控制装置的开发中。可以使用旨在提供能量消散和重新定心功能的无源保护设备来保护建筑物免受地震损坏。可能的应用在于降低多跨桥的地震风险，修复遗产结构和保护具有国家重要意义的特殊结构。

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