文章对一些常见的混凝土构件裂缝作了分类研究和损伤定位分析，介绍一种评价方法，旨在为混凝土结构的养护、管理提供参考。
A method of evaluating the crack and damage is introduced. The presented work is beneficial to the maintenance and management of concrete structures.
应用振动测试的模态分析方法，对钢筋混凝土结构锈裂损伤定位与识别进行了探讨。
Modal analysis method is used to discuss the location and identification of the damages to reinforced concrete structure due to corrosion and cracking.
本文提出了由工作模态分析得到的模态模型实现损伤检测与定位的一种方法。
A method of the damage detection and localization is proposed by means of modal models obtained from operational modal analysis in this paper.
结果表明，该方法消噪效果好，为损伤检测的缺陷定位分析打下了基础。
The results show that the method of canceling noise is better, and this grounds for the bug detection and location of damage identification.
对基于分形理论的损伤定位指标在不同的损伤程度，不同的信噪比的噪声影响下识别效果进行了分析。
Noise stress tests are also carried out to demonstrate the robustness and effectiveness of the FD-based index for damage localization with different stiffness losses and SNR values.
推导了基于测试频率平方变化比的损伤定位方法，利用有限元方法对一管道结构以刚度折减法进行了损伤模拟和模态分析数值计算。
A methodology was put forward for damage location, and damage simulating as well as numerical calculation of modal analysis was carried out on a truss plane bridge by stiffness discount.
推导了基于测试频率平方变化比的损伤定位方法，利用有限元方法对一管道结构以刚度折减法进行了损伤模拟和模态分析数值计算。
A methodology was put forward for damage location, and damage simulating as well as numerical calculation of modal analysis was carried out on a truss plane bridge by stiffness discount.
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