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首页> 外文期刊>Journal of Infrastructure Systems >Remote Structural Infrasound: Case Studies of Real-Time Infrastructure System Monitoring
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Remote Structural Infrasound: Case Studies of Real-Time Infrastructure System Monitoring

机译：远程结构性初步：实时基础设施系统监控案例研究

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摘要

Infrastructure in the continental United States is often used beyond its design life due to budgetary constraints and logistical hurdles. New structural health monitoring techniques have been developed to mitigate the increasingly constrained resources available by identifying the potential need to repair and retrofit aging infrastructure from modal signatures. Large structures, such as bridges and dams, emit infrasound (acoustic energy below that of human perception) at their natural modes of vibration, which can be related to structural health and capacity; this infrasonic energy can propagate tens of kilometers from the infrastructure. Currently, the determination of structural health requires intensive hands-on measurements of individual elements at repeated intervals. Persistent, remote infrasound assessment provides a method for standoff assessment of the modal behavior of structures for structural health monitoring and damage assessment. Case studies and demonstrations of this technology are presented for water control infrastructure systems, transportation infrastructure systems, and riverine infrastructure systems.
机译：由于预算限制和后勤障碍，美国大陆美国的基础设施通常超出其设计生活。已经制定了新的结构健康监测技术来减轻越来越受限制的资源，通过确定从模态签名修复和改造老化基础设施的潜在需要。大型结构，如桥梁和水坝，以其自然的振动方式发射射击（人类感知的声能量低于人类感知），这可能与结构健康和能力有关;这种速率能量可以从基础设施繁殖几千公里。目前，结构健康的确定需要重复间隔的密集动手对个体元素的测量。持久性，远程Inflasound评估为结构健康监测和损伤评估的结构模型行为提供了一种支撑评估方法。案例研究和该技术的示范用于水控制基础设施系统，运输基础设施系统和河流基础设施系统。

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