Dynamic response of RC beams – in different scale – with near surface mounted CFRP rectangular rods

Capozucca, Roberto; Bossoletti, S.

doi:10.1016/j.compstruct.2015.05.043

Cited by 5 publications

(1 citation statement)

References 12 publications

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“…A detailed review of different vibration-based damage detection (VBDD) techniques based on EMA was conducted in different investigations (Doebling et al ., 1996), (Moaveni et al ., 2010). Researchers used progressive damage analysis through EMA as a tool to analyze the effectiveness of different retrofitting techniques (Prado et al ., 2016; Capozucca and Bossoletti, 2014, 2015; Badri and Moghadam, 2021; Gharehbaghi et al ., 2021). This technique is also finding its way to develop non-destructive tests to know about the current condition of the structures and to predict their remaining useful life.…”

Section: Introductionmentioning

confidence: 99%

Progressive deterioration of reinforced concrete structures: effect on dynamic properties of flexural members

Khan

Farhan

Raza

2023

MMMS

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PurposeThe main purpose of this study is to examine the damage behavior of flexural members under different loading conditions. The finite element model is proposed for the prediction of modal parameters, damage assessment and damage detection of flexural members. Moreover, the analysis of flexural members has been done for the sensor arrangement to accurately predict the damage parameters without the laborious work of experimentation in the laboratory.Design/methodology/approachBeam-like structures are structures that are subjected to flexural loadings that are involved in almost every type of civil engineering construction like buildings, bridges, etc. Experimental Modal Analysis (EMA) is a popular technique to detect damages in structures without requiring tough and complex methods. Experimental work conducted in this study concludes that a structure experiences high changes in modal properties once when cracking occurs and then at the stage where cracks start at the critical neutral axis. Moreover, among the various modal parameters of the flexural members, natural frequency and mode shapes are the viable parameters for the damage detection.FindingsFor torsional mode, drop in natural frequency is high for higher damages as compared to low levels. This is because of the opening and closing of cracks in modal testing. When damage occurs in the structure, there is a reduction in the magnitude of the FRF plot. The measure of this drop can also lead to damage assessment in addition to damage detection. The natural frequency of the system is the most reliable modal parameter in detecting damages. However, for damage localization, the next step after damage assessment, mode shapes can be more helpful as compared to all other parameters.Originality/valueEffect on Dynamic Properties of Flexural Members during the Progressive Deterioration of Reinforced Concrete Structures is studied.

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