Vibration Testing for Nondestructive Evaluation of Bridges. I: Theory

Samman, Mahmod; Biswas, Mrinmay

doi:10.1061/(asce)0733-9445(1994)120:1(269)

Cited by 51 publications

(13 citation statements)

References 14 publications

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“…The use of frequency response functions (FRF) was considered by many other authors as a solution for the detection of the structural integrity (Tsai, 1988;Mannan, 1990;Samman, 1994a;Samman, 1994b). The experimental measurement of FRFs in a laboratory bridge model, allowed the identification of a 3 mm cut in one of the tested bars (Mannan, 1990).…”

Section: Methods Based On Frequency Response Functionsmentioning

confidence: 99%

Structural Health Monitoring in Composite Automotive Elements

Lopes¹,

Ribeiro²

2012

New Advances in Vehicular Technology and Automotive Engineering

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Section: Methods Based On Frequency Response Functionsmentioning

confidence: 99%

Structural Health Monitoring in Composite Automotive Elements

Lopes¹,

Ribeiro²

2012

New Advances in Vehicular Technology and Automotive Engineering

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“…The learning rate has to be chosen as high as possible to allow fast learning without leading to oscillations. Generally a value of 0.9 is recommended [6].…”

Section: B Network Design and Training Aspectsmentioning

confidence: 99%

Use of Neural Networks in Damage Detection of Strutures

Niu

Liao-yuan

2009

2009 International Conference on Electronic Computer Technology

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An application of TNN on the damage detection of steel bridge structures is presented. The issues relating to the design of network and learning algorithm are addressed and network architectures have been developed with reference to trussed bridge structures. The training patterns are generated for multiple damaged zones in a structure. The results of simulation show that the algorithm is suitable for structural identification of bridges where the measured data are expected to be imprecise and often incomplete. The engineering importance of the method is demonstrated from the fact that measured input at only a few locations in the structure is needed in the identification process using the TNN.

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“…Frequency response functions (FRFs) was another method to detect damage suggested by Samman and *Address correspondence to this author at the Civil and Environmental Engineering Institute, University of Science and Technology Beijing, Beijing 100083, China; Tel:(+86)13810593480; E-mail: huangcn03@mails.tsinghua.edu.cn Coworkers [9][10][11][12]. Damage could be identified through comparing the FRFs between the intact and damaged structures.…”

Section: Introductionmentioning

confidence: 99%

Damage Identification of Continuous Rigid Frame Concrete Bridge

Huang¹,

Ye²,

Lu³

2014

TOCIEJ

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During a bridge service life, many factors can cause damage accumulation such as overloaded traffic, fatigue effect, and so on. Hence, the identification of potential damages has been received wide attention to prevent such sudden fatal accident. An experiment of a continuous rigid frame concrete bridge, which had 3 spans and a total length of 18 meters, was presented in this paper. Two load stages and ten different load steps were simulated to test various scenario of long-term loading and different levels of overload. Curvature mode method was adopted to detect the damage during the exercises. The changes of curvature modes were used to detect damage after the ten load steps. This method performed excellent to identify the damage position of the bridge. So, it is concluded that the curvature modes can be used to detect damage in actual structures. In addition, the Finite-Element Analysis (FEA) was utilized, and the experimental recurring was verified positively through FEA model.

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Vibration Testing for Nondestructive Evaluation of Bridges. I: Theory

Cited by 51 publications

References 14 publications

Structural Health Monitoring in Composite Automotive Elements

Structural Health Monitoring in Composite Automotive Elements

Use of Neural Networks in Damage Detection of Strutures

Damage Identification of Continuous Rigid Frame Concrete Bridge

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