A new damage index for reinforced concrete structures

Cao, Vui Van; Ronagh, Hamid Reza; Ashraf, Mahmud; Baji, Hassan

doi:10.12989/eas.2014.6.6.581

Cited by 40 publications

(12 citation statements)

References 23 publications

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“…To be more understandable the phenomena, the qualitative expression of the element's damage then to be transferred into a quantitative formulation. In line with hysteretic models, there are a lot of damage index formulations that have been proposed researchers [21][22][23] and all of them are following the behavior of its hysteretic loops. In this study, three concepts of element damage based on ductility ratio, deformation-based and ductile based [22] has been used and is presented as,…”

Section: )!'/% -!+*)! ) (#! ) !3mentioning

confidence: 99%

The Effects of Earthquake Significant Duration D595 to the Earthquake Intensity Measures and the Inelastic Response of SDOF Reinforced Concrete Structure

Pawirodikromo

2019

MATEC Web Conf.

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The concept of seismic intensity measures has long beendiscussed and has been collected by researchers among whom are by [1-6]. However, the effect of earthquake duration on the structural response hasnot received attention from the researcher so it has not been seen in the listof the existing seismic intensity measures. In the spectral response, forexample, it has been accommodated peak value and earthquake frequencycontent but has not accommodated the duration of the earthquake. Theeffect of earthquake duration on a response, damage or collapse capacity ofthe structure has been done by the researchers [7-10]. The spectrallyequivalent approach/control has been used by [9,10]., while the collapsecapacity approach is cursed by [8]. The use of the classification of theearthquake frequency content as independent variables has been suggestedby [7]. In this study, the classification of earthquake frequency (lowfrequency), earthquake duration as the independent variable and peakacceleration control have been used. Single degree of Freedom (SDOF)structures excited by 15-earthquakes with effective durations varyingbetween te = 6.34 to 30.18 s have been used. The results showed that notall seismic intensity measure used had a strong relationship with effectiveduration. The earthquake effective duration has a positive relationship withthe damage index but the relationship is relatively weak

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Section: )!'/% -!+*)! ) (#! ) !3mentioning

confidence: 99%

The Effects of Earthquake Significant Duration D595 to the Earthquake Intensity Measures and the Inelastic Response of SDOF Reinforced Concrete Structure

Pawirodikromo

2019

MATEC Web Conf.

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“…In recognition of the energy parameter, which takes into account a number of parameters such as force, deformation and the number of cycles, Cao et al [46] proposed a model which was later modified by the authors as shown in Equations 23-25.…”

Section: Damage Modelsmentioning

confidence: 99%

Reducing the seismic damage of reinforced concrete frames using FRP confinement

Cao

Ronagh

2014

Composite Structures

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Please cite this article as: Cao, V.V., Ronagh, H.R., Reducing the seismic damage of reinforced concrete frames using FRP confinement, Composite Structures (2014), doi: http://dx.doi.org/10. 1016/j.compstruct.2014.07.038 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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“…In addition to the value of the deformation or energy response, the number of load cycles plays an important role in the range of damage [7,8]. Therefore, in estimating the damage of structures under earthquake excitations, cumulative damage models are superior to non-cumulative ones [5].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the ratio of maximum plastic deformation to plastic deformation capacity was used as another parameter in determining the damage measure [13]. Hysteretic energy that merges the amount of response into the number of load cycles is a potential parameter for expressing structural damage [5,8]. Fajfar [14] and Padilla and Rodriguez [15] introduced the ratio of the hysteretic energy demand to the absorbed energy capacity of a structure under monotonic loading to estimate damage.…”

Section: Introductionmentioning

confidence: 99%

Bayesian updating of the Park-Ang damage index for RC frame buildings under near-fault ground motions

Yazdannejad

Yazdani

2017

Scientia Iranica

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Abstract. A procedure for updating the Park-Ang damage index of reinforced concrete building under near-fault ground motion is proposed. Rather than developing a new damage model, a correction term is added to the existing damage model within the Bayesian framework. The correction term is described as a linear function of the variation of sti ness of structures, which is a more consistent indicator of predicting the level of damage. The Bayesian method is an e ective approach when new data become available. The reinforced concrete building damage data during past near-fault pulse-like earthquakes were used in updating the damage model. The proposed damage index is conceptually simple and realistic.

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A new damage index for reinforced concrete structures

Cited by 40 publications

References 23 publications

The Effects of Earthquake Significant Duration D595 to the Earthquake Intensity Measures and the Inelastic Response of SDOF Reinforced Concrete Structure

The Effects of Earthquake Significant Duration D595 to the Earthquake Intensity Measures and the Inelastic Response of SDOF Reinforced Concrete Structure

Reducing the seismic damage of reinforced concrete frames using FRP confinement

Bayesian updating of the Park-Ang damage index for RC frame buildings under near-fault ground motions

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