Fuzzy-stochastic model to assess defects in low-rise residential buildings

Gurmu, Argaw Tarekegn, Krezel, Adam and Ongkowijoyo, Citra 2021, Fuzzy-stochastic model to assess defects in low-rise residential buildings, Journal of Building Engineering, vol. 40, no. August 2021, doi: 10.1016/j.jobe.2021.102318.


Title Fuzzy-stochastic model to assess defects in low-rise residential buildings
Author(s) Gurmu, Argaw TarekegnORCID iD for Gurmu, Argaw Tarekegn orcid.org/0000-0003-0750-4191
Krezel, AdamORCID iD for Krezel, Adam orcid.org/0000-0002-3825-6189
Ongkowijoyo, CitraORCID iD for Ongkowijoyo, Citra orcid.org/0000-0002-3124-2980
Journal name Journal of Building Engineering
Volume number 40
Issue number August 2021
Article ID 102318
Total pages 9
Publisher Elsevier
Place of publication Oxford, Eng.
Publication date 2021-08
ISSN 2352-7102
Keyword(s) building defects
cracks
low-rise residential buildings
Monte Carlo simulation
fuzzy synthetic evaluation
Summary Understanding the severity level of defects in buildings can help project managers to take appropriate corrective actions. The objective of this study is to assess the severity of defects in low-rise residential buildings and develop a stochastic model for predicting the likelihood of occurrence of various categories of defects. The defects data for ground floor slabs and walls were extracted from engineering inspection reports of 252 residential buildings in Melbourne, Australia. The analyses were then carried out using Fuzzy Synthetic Evaluation (FSE) and Monte Carlo Simulation (MS) techniques. The outputs of the FSE showed that the severity index of the floor cracks was found to be 3.05 with the equivalent linguistic term of ‘slight’ or 1- 2.0mm in size. Similarly, the severity index of wall cracks was found to be 3.01 with the equivalent linguistic term of ‘slight’ or 1 - 5.0mm in size. This indicates that the severity level of defects in floor and wall is low. Likewise, the findings of the simulation analysis revealed that the probability of occurrence of floor cracks with width ranging from 2 to 4mm is 40.9%, and the chance of occurrence of wall cracks having widths ranging from 5 to 15mm is 73.6%. The proposed models can assist the regulatory bodies and construction supervisors to assess the probability of occurrence and severity of the building defects in the ground floor slabs and walls of low-rise residential buildings. Further, this study contributes to the body of knowledge by proposing methods to assess defects in buildings.
Language eng
DOI 10.1016/j.jobe.2021.102318
Indigenous content off
Field of Research 0905 Civil Engineering
1201 Architecture
1202 Building
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2021, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30148388

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