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

Yazdannejad, Kowsar; Yazdani, Amirnaser

doi:10.24200/sci.2017.4188

Cited by 3 publications

(4 citation statements)

References 37 publications

(46 reference statements)

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“…Second, the Park & Ang damage index has been widely used for RC structures due to its simplicity and good correlation with the observed damage 40 . A number of existing studies 62–65 have quantified different limit states in terms of the Park & Ang damage index. This is valuable for developing MS‐AS fragility surfaces of RC structures.…”

Section: Case Study: a Rc Frame Structurementioning

confidence: 99%

See 1 more Smart Citation

Development of fragility surfaces for reinforced concrete buildings under mainshock‐aftershock sequences

Zhou

et al. 2021

Earthq Engng Struct Dyn

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A single intensity measure (IM) is commonly used to develop fragility curves for structures subjected to mainshock‐aftershock (MS‐AS) scenarios. This study aims to propose a framework to develop MS‐AS fragility surfaces by characterizing the MS‐AS sequences with two IMs. To do this, the well‐known Park & Ang damage index, which increases monotonically with the ground motion duration, is adopted to represent the accumulative structural damage during sequential excitations. The MS‐AS accumulative damage of structures is thus represented by the combination of the initial damage caused by MS and the incremental damage caused by AS. Based on total probability theorem, the process of assessing MS‐AS fragility is consequently divided into two parts, namely the MS fragility assessment and the AS fragility assessment, respectively, where the cases of dynamic instability are considered. The proposed framework is illustrated using a typical four‐story reinforced concrete frame building. The peak ground velocity values of both MS and AS are taken as the representative IMs for the MS‐AS sequences. The fragility results for MS only and MS‐AS sequences are compared to scrutinize the effects of AS on structural damage. It is found that the MS‐AS sequence can cause significantly larger exceedance probabilities of limit states compared to the MS only. The MS‐AS sequence also leads to a reduction of the MS‐AS fragility median conditioned on a given AS intensity. Such reduction increases with the increase of the AS intensity.

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Section: Case Study: a Rc Frame Structurementioning

confidence: 99%

“…Second, the Park & Ang damage index has been widely used for RC structures due to its simplicity and good correlation with the observed damage. 40 A number of existing studies [62][63][64][65]…”

Section: Structural Damage Assessmentmentioning

confidence: 99%

Development of fragility surfaces for reinforced concrete buildings under mainshock‐aftershock sequences

Zhou

et al. 2021

Earthq Engng Struct Dyn

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“…Because of the widely acceptance and implementation of the PA model for hysteresis evaluation, [ 19,20,26,27 ] it could be used as a baseline model for damage evaluation. In general, the original PA model can be expressed as Equation 6.…”

Section: Formulationmentioning

confidence: 99%

Residual‐based damage evaluation of RC columns using feature classification and model optimization

Shan

Liu

Ouyang

2021

Structural Design Tall Build

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Summary A residual‐based damage evaluation framework with physical feature classification is proposed for categorizing RC columns regarding engineering parameters. To realize a real‐time damage assessment, increasing the damage model's feasibility is of interest. Considering the physical diversities of different RC columns, a damage model with a constant parameter setup may become unreliable in practice. To address this issue, a self‐organizing map (SOM) is utilized to classify RC columns in terms of their engineering parameters. Such classified RC columns are associated with similar physical attributes. For RC columns sorted in the same cluster, a damage model parameter optimization procedure is implemented. One hundred and twenty RC columns are selected from the Pacific Earthquake Engineering Research (PEER) center. In specific, using the selected RC columns, a comparative study has been implemented to show the feasibility of the proposed damage model. The SOM is then trained to classify 100 RC columns associated with a model optimization procedure. Such well‐trained SOM is utilized for pattern recognition, and the optimized damage model is used to evaluate the damage status of 20 columns in the validation data pool. In the end, a parametric study is accomplished to extend the reliability of the proposed damage evaluation framework.

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“…The suggested method efficiently calculates a reliable GDI that can assess building damage from small to large scale buildings. doi: 10 In the present study, an 8-storey RC frame-shear wall building of Life Safety performance level has been considered for the assessment of DI. The unified performance-based design (UPBD) method has been employed for designing the RC frame shear wall building.…”

Section: Introductionmentioning

confidence: 99%

Modified Damage Index Calculation Method for Frame-Shear Wall Building Considering Multiple Demand Parameters

Mibang

Choudhury

2021

IJE

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

Cited by 3 publications

References 37 publications

Development of fragility surfaces for reinforced concrete buildings under mainshock‐aftershock sequences

Development of fragility surfaces for reinforced concrete buildings under mainshock‐aftershock sequences

Residual‐based damage evaluation of RC columns using feature classification and model optimization

Modified Damage Index Calculation Method for Frame-Shear Wall Building Considering Multiple Demand Parameters

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