Testing of Large Smart Structures Using Embedded Sensors

嵌入钢筋混凝土的光纤传感器将被测试，作为材料完整性和结构对极端载荷的反应的评估者，以及作为应力的探测器，反过来，将激活控制系统。该项目将开发和检查纤维的涂层和包层，以最大限度地减少脆性和退化，测试分布式多模振动传感的基本原理，开发在一根光纤上嵌入和光复用多个光纤点压力传感器的技术。研究结果将应用于“智能”建筑和其他类型建筑的发展，在这些建筑中，多路传感器被纳入其结构以检测故障。测量行为并反馈给控制系统，以保持建筑物的完整性。这项工作的好处是增加了公共安全，减少了遭受飓风和地震等极端自然灾害的建筑物和结构的损坏和破坏。

Fiber optic sensors embedded into reinforced concrete will be tested as evaluators of material integrity and the structural response to extreme loads, and as detectors of stresses that, in turn, would activate control systems. The project will develop and examine coatings and claddings for the fibers to minimize fragility and degradation, test the underlying principles of distributed multi-mode vibration sensing, and develop techniques for embedding and optically multiplexing multiple fiber optic point pressure sensors on a single fiber. The results will be applied to the development of "intelligent" buildings and other types of construction, in which multiplexed sensors are incorporated into their structure to detect failure, measure behavior and feed back to control systems that preserve building's integrity. The benefits of the work is to increase public safety and to decrease damage to and destruction of buildings and structures subjected to extreme natural hazards such as hurricanes and earthquakes.