Publikace detail

Damage evolution for repairability of substandard beam-column joints

Autoři: Yurdakul Özgür | Del Vecchio Ciro | Di Ludovico Marco | Řoutil Ladislav | Avşar Özgür

Rok: 2021

Druh publikace: článek ve sborníku

Název zdroje: Compdyn 2021 Proceedings, Volume 1

Název nakladatele: National Technical University of Athens

Místo vydání: Atény

Strana od-do: 120-130

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Damage evolution for repairability of substandard beam-column joints	Substandard reinforced concrete (RC) joints often exhibited poor seismic performance even under moderate intensity earthquakes, which is due to the lack of earthquake-resistant design detailing. Premature joint cracking often compromises the seismic performance of the entire building, initiating local collapses or global failure mechanisms. The quantification of the joint repairability in terms of reduction of the structural damage as well as expected economic losses is still a challenging task. This is due to the uncertainties in the assessment of residual and maximum crack widths. This study deals with the evaluation of crack by the increasing drift-level. To this end, available numerical and experimental cyclic data on the substandard beam-column joints are collected. The variability in material properties is considered and the correlation between residual and maximum crack width is obtained. These data are then used to obtain residual-to-maximum crack width ratio by increasing drift level. The available repairability thresholds are then compared with the residual-to-maximum crack width ratio curve.	Crack width; Repair; Probabilistic; Beam-column joint; Substandard
eng	Damage evolution for repairability of substandard beam-column joints	Substandard reinforced concrete (RC) joints often exhibited poor seismic performance even under moderate intensity earthquakes, which is due to the lack of earthquake-resistant design detailing. Premature joint cracking often compromises the seismic performance of the entire building, initiating local collapses or global failure mechanisms. The quantification of the joint repairability in terms of reduction of the structural damage as well as expected economic losses is still a challenging task. This is due to the uncertainties in the assessment of residual and maximum crack widths. This study deals with the evaluation of crack by the increasing drift-level. To this end, available numerical and experimental cyclic data on the substandard beam-column joints are collected. The variability in material properties is considered and the correlation between residual and maximum crack width is obtained. These data are then used to obtain residual-to-maximum crack width ratio by increasing drift level. The available repairability thresholds are then compared with the residual-to-maximum crack width ratio curve.	Crack width; Repair; Probabilistic; Beam-column joint; Substandard

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