摘要
针对用传统测试方法难以有效实现大型结构应力状态的分布测试问题,提出采用螺旋缠绕式光纤应变传感器进行测试的新方法。建立了此种光纤传感器的理论模型,对其传感原理进行了理论分析,并进行了实验研究,证明了其可行性。该传感测试方法为大型结构特别是预应力混凝土结构中预应力筋的应力分布测试提供了新的解决思路。
It is difficult to resolve the problem of measuring the distributed stress status of large structures using traditional methods. A new method using the spiral winding optic fiber strain sensor is proposed, and a theoretical model is given in this paper. Experiments were carried to validate the theory. The present method provides a new way for the distributed stress measure of large structures, especially the prestressed reinforcement in prestressed concrete structures.
出处
《工程力学》
EI
CSCD
北大核心
2004年第1期48-51,92,共5页
Engineering Mechanics
基金
国家自然科学基金资助项目(50278058)
国家青年骨干教师资助项目
教育部重点资助项目
关键词
智能材料与结构
瑞利散射
应变
准分布
预应力筋
smart material and structure
Rayleigh scatter
strain
quasi-distributed
prestressed reinforcement
