Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13087/2069
Title: Crack width-based fragility curves for repairability of substandard beam-column joints
Authors: Yurdakul, Özgür
Del Vecchio, Ciro
Di Ludovico, Marco
Routil, Ladislav
Avşar, Özgür
Keywords: Repairability
Fragility
Joint
Substandard
Residual crack
Existing buildings
Issue Date: 2021
Publisher: Springer
Abstract: Post-earthquake observations have outlined the poor seismic performance of substandard reinforced concrete (RC) beam-column joints in existing buildings. They often exhibit significant cracking even under moderate intensity earthquakes, compromising the seismic performance of the entire building. This makes the quantification of their residual capacity and the definition of reliable repairability thresholds critical. Different approaches are available in the literature to establish the repairability of RC joints. However, a simple crack width-based criterion is required for practitioners during in-situ inspections. This study deals with the definition of crack width-based fragility curves relying on numerical analyses. Those are carried out by using the validated finite element (FE) models, being capable of reproducing the initiation and development of cracks in RC joints. To this end, the uncertainties in material properties, influencing the seismic performance of structural components, are accounted for different joints. In particular, experimentally validated FE models are evolved to stochastic level by generating random variables of material properties with the stratified sampling scheme. Fragility curves representing a certain level of probability of exceeding the defined crack width at the joint back, joint core, and beam-to-joint interface are developed. An application of the proposed methodology for in-situ inspections is also presented, and the results of in-situ measurements of residual crack width from real buildings damaged by recent earthquakes are used for the validation.
URI: https://doi.org/10.1007/s10518-021-01218-6
https://hdl.handle.net/20.500.13087/2069
ISSN: 1570-761X
1573-1456
Appears in Collections:Kimya Bölümü Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu

Show full item record

CORE Recommender

WEB OF SCIENCETM
Citations

1
checked on Jun 22, 2022

Page view(s)

206
checked on Oct 3, 2022

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.