声发射技术在桥梁结构健康监测中的应用研究进展  

Advances in Researches on Application of Acoustic Emission Technique to Health Monitoring for Bridge Structures

作　　者：丁幼亮[1] 邓扬[1] 李爱群[1] 

机构地区：[1]东南大学混凝土及预应力混凝土结构教育部重点实验室,南京210096

出　　处：《防灾减灾工程学报》2010年第3期341-351,共11页Journal of Disaster Prevention and Mitigation Engineering

基　　金：国家杰出青年科学基金项目(50725828);国家"十一五"科技支撑计划项目(2006BAJ03B05);国家自然科学基金项目(50808041;50978056)资助

摘　　要：声发射技术作为一种被动的、动态的监测手段,在工程和材料领域得到了广泛的应用,正日益受到桥梁结构健康监测研究者的关注。本文回顾了近年来国内外基于声发射技术的桥梁结构健康监测研究状况。首先,简要介绍了声发射的基本原理和声发射信号处理方法;其次,详细分析了声发射技术在桥梁结构健康监测中的研究成果,包括钢筋混凝土桥、钢结构桥、桥梁结构关键构件和无线声发射传感器及其网络等;最后,分析了声发射技术在桥梁结构健康监测领域应用中存在的一些问题,并对声发射技术的应用前景进行了探讨。As a passive and dynamic monitoring technique,acoustic emission（AE） is widely used in the filed of engineering and material and has attracted a lot of interests in structural health monitoring（SHM） for bridges.In this paper,the research status of SHM for bridges based on AE is reviewed.Firstly,the basic principles of AE and the signal processing methods are introduced briefly.Secondly,the advances in application of AE in SHM for bridges are described in detail,including concrete bridges,steel bridges,key components of bridge structures and wireless AE sensors and sensor network.Finally,the problems in application of AE in SHM for bridges are summarized and the application prospective of this technique is discussed.

关 键 词：声发射(AE) 结构健康监测 钢筋混凝土桥 钢结构桥 

分 类 号：TU435[建筑科学—岩土工程]