智能材料在土木结构监测和振动控制中的应用

光导纤维、电流变液 ( ER)、磁流变液 ( MR)、形状记忆合金 ( SMA)是土木工程结构振(震 )动状态监测、振动响应控制中采用的 4种智能材料。首先概括性介绍了 4种智能材料的基本性能特征、工作原理、应用范围 ,分析讨论了有关研究与工程应用情况以及发展前景。重点评述 SMA在结构主动和被动控制应用研究的现状。最后提出进一步实现 SMA混杂混凝土智能材料结构——控制一体化的新构想。

Applications of Intelligent Materials in Vibration Monitoring and Controlling of Civil Structures

Optical fibers,electrorheological fluids,magnetorheological fluids and shape memory alloy are four kinds of the intelligent materials which have shown particular promise in vibration monitoring and controlling of civil engineering structures.Main behaviors,control principle and ranges of applications associated with these intelligent materials are introduced briefly,recent situations of practical engineering application and further developments are also discussed.The author puts emphasis upon remarking the research status of SMA in active and passive controlling of structures.Finally,an innovative idea which incorporates SMA hybrid concrete intelligent material structures with control is proposed.