SENSITIVITY ANALYSIS OF MECHANICAL BEHAVIORS FOR BRIDGE DAMAGE ASSESSMENT
SENSITIVITY ANALYSIS OF MECHANICAL BEHAVIORS FOR BRIDGE DAMAGE ASSESSMENT
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DOI：
10.12989/sem.2012.41.4.539
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发表时间：
2012-02
影响因子：
2.2
通讯作者：
A. Miyamoto;Satoshi Isoda
中科院分区：
文献类型：
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作者：
A. Miyamoto;Satoshi Isoda
桥梁使用性能的诊断是通过现场目测、静、动载试验和分析相结合的方法进行的。使用信息技术和传感器的结构健康监测(SHM)越来越多地被用来提供对结构性能特征的更好的估计，而不是传统的方法。由于各种损伤下桥梁的力学行为尚不清楚，因此很难对既有桥梁的损伤模式和损伤程度进行评估。本文通过对几种特定的人为损伤引起的模型桥梁的试验，研究了桥梁静力和动力行为的灵敏度作为损伤评估的指标。并详细讨论了一种基于这些行为的桥梁损伤评估方法。最后，根据研究结果，探讨了在役桥梁结构健康监测系统的应用前景。
The diagnosis of bridge serviceability is carried out by a combination of in-situ visual inspection, static and dynamic loading tests and analyses. Structural health monitoring (SHM) using information technology and sensors is increasingly being used for providing a better estimate of structural performance characteristics rather than above traditional methods. Because the mechanical behavior of bridges with various kinds of damage can not be made clear, it is very difficult to estimate both the damage mode and degree of damage of existing bridges. In this paper, the sensitivity of both static and dynamic behaviors of bridges are studied as a measure of damage assessment through experiments on model bridges induced with some specified artificial damages. And, a method of damage assessment of bridges based on those behaviors is discussed in detail. Finally, based on the results, a possible application for structural health monitoring systems for existing bridges is also discussed.