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Consequences of using Quantitative Risk Assessment as a verification tool

Öström, Joey LU (2022) In LUTVDG/TVBB VBRM10 20212
Division of Fire Safety Engineering
Abstract
What are the consequences of using Quantitative risk assessment (QRA) as a verification tool? Performance-based building codes differ from prescriptive-based codes in that they define specific objectives to be met, enabling the building designer to choose which solution to use so long it meets the objectives. This master’s thesis explores the consequences of using QRA as a verification tool in comparison to existing verification methods currently in use in Australia. The thesis consists of a literature study examining currently existing quantitative risk-based methods, and a case study to test and illustrate the application of the proposed Part A8 of The Building Code of Australia (BCA) 2022, which contains quantitative risk criteria,... (More)
What are the consequences of using Quantitative risk assessment (QRA) as a verification tool? Performance-based building codes differ from prescriptive-based codes in that they define specific objectives to be met, enabling the building designer to choose which solution to use so long it meets the objectives. This master’s thesis explores the consequences of using QRA as a verification tool in comparison to existing verification methods currently in use in Australia. The thesis consists of a literature study examining currently existing quantitative risk-based methods, and a case study to test and illustrate the application of the proposed Part A8 of The Building Code of Australia (BCA) 2022, which contains quantitative risk criteria, followed by evaluation and analysis of the results. The study was limited to an already existing residential building with suggested fire safety measures. An event tree based QRA approach was used to quantify the individual and societal risk for the building. The results show that the already existing building meets most of the risk-based criteria of the proposed legislation. Improving the reliability of certain fire protection systems is shown to reduce the risk level for the building. The use of QRA to verify fire safety is expected to lead to a more holistic fire safety design and may lead to a more robust fire safety design. However, there are several challenges related to the use of QRA to verify fire safety in buildings. (Less)
Please use this url to cite or link to this publication:
author
Öström, Joey LU
supervisor
organization
course
VBRM10 20212
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Quantitative Risk Assessment, QRA, performance-based design, verification tool, performance solution, performance requirements, fire risk assessment, residential building
publication/series
LUTVDG/TVBB
report number
5657
other publication id
LUTVDG/TVBB-5657-SE
language
English
id
9072085
date added to LUP
2022-01-19 10:27:43
date last changed
2022-01-19 10:27:43
@misc{9072085,
  abstract     = {{What are the consequences of using Quantitative risk assessment (QRA) as a verification tool? Performance-based building codes differ from prescriptive-based codes in that they define specific objectives to be met, enabling the building designer to choose which solution to use so long it meets the objectives. This master’s thesis explores the consequences of using QRA as a verification tool in comparison to existing verification methods currently in use in Australia. The thesis consists of a literature study examining currently existing quantitative risk-based methods, and a case study to test and illustrate the application of the proposed Part A8 of The Building Code of Australia (BCA) 2022, which contains quantitative risk criteria, followed by evaluation and analysis of the results. The study was limited to an already existing residential building with suggested fire safety measures. An event tree based QRA approach was used to quantify the individual and societal risk for the building. The results show that the already existing building meets most of the risk-based criteria of the proposed legislation. Improving the reliability of certain fire protection systems is shown to reduce the risk level for the building. The use of QRA to verify fire safety is expected to lead to a more holistic fire safety design and may lead to a more robust fire safety design. However, there are several challenges related to the use of QRA to verify fire safety in buildings.}},
  author       = {{Öström, Joey}},
  language     = {{eng}},
  note         = {{Student Paper}},
  series       = {{LUTVDG/TVBB}},
  title        = {{Consequences of using Quantitative Risk Assessment as a verification tool}},
  year         = {{2022}},
}