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Building Resilience to High Winds Using Fragility Analysis.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Building Resilience to High Winds Using Fragility Analysis./
Author:	Gill, Amira.
Description:	1 online resource (127 pages)
Notes:	Source: Masters Abstracts International, Volume: 83-02.
Contained By:	Masters Abstracts International83-02.
Subject:	Load. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28484620click for full text (PQDT)
ISBN:	9798505572962

Building Resilience to High Winds Using Fragility Analysis.
Gill, Amira.

Building Resilience to High Winds Using Fragility Analysis. - 1 online resource (127 pages)

Source: Masters Abstracts International, Volume: 83-02.

Thesis (M.A.Sc.)--Queen's University (Canada), 2021.

Includes bibliographical references

North America gets hit with approximately 1,100 recorded tornadoes annually. In Ontario, Canada, more than 12 tornadoes are recorded between the months of May and September annually. Two major tornadoes hit Ottawa, Canada on September 21, 2018. Ottawa, Ontario suffered an Enhanced Fujita (EF 3and EF2)tornado in Dunrobin and Arlington Woods, respectively. These severe events destroyed numerous buildings, and thus, a field investigation was conducted to observe the damages in the structures. Damage assessment data was recorded with a focus on damage failure modes and functionality of the buildings during the field investigation. According to the data collected, the damage was characterized based on different levels and discussion was formulated surrounding the way residential buildings should be built to assure resilience against tornadoes. Based on the site investigation, it was found that roofs are the most vulnerable component of a residential house and are often left with rafter, sheathing and shingle damages when exposed to high wind pressures.Fragility analysis can be used to estimate the probability of failure of a roof when constructed with specified nails and sheathing sizes. Specific type of nails, roof to wall connection details and sheathing sizes based on the damaged roofs that were previously assessed in the Dunrobin area in Ottawa,Ontario. Empirical fragility analysis considers eight different scenarios, including different sheathing and nail sizes. These baseline structures were used to analyze how different variables in a wooden roof could affect the fragility analysis results. The considered variables included the nail type, panel size, wind load and dead load.Finally, Finite element analysis (FEA) was conducted using the ABAQUS software to model and determine the structural responses of typical residential roofs. The wood-framed roof models permitted visualtion of the structural behaviour under wind pressures such as excessive stresses. The FEA model results were then compared to the results from a field investigation in Dunrobin, Ontario. This methodology will allow fora more accurate prediction of tornadic wind-induced damage on residential roofs to be used for better design and construction practices.The performance of the examined buildings from the field investigation, the fragility models and the initial ABAQUS models, suggests a need for more resilient design and retrofit methods to strengthen buildings envelopes.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798505572962Subjects--Topical Terms:

3562902
Load.
Index Terms--Genre/Form:

542853
Electronic books.

Building Resilience to High Winds Using Fragility Analysis.
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100 1 $a Gill, Amira. $3 3696535
245 1 0 $a Building Resilience to High Winds Using Fragility Analysis.
264 0 $c 2021
300 $a 1 online resource (127 pages)
336 $a text $b txt $2 rdacontent
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500 $a Source: Masters Abstracts International, Volume: 83-02.
500 $a Advisor: Genikomsou, Aikaterini.
502 $a Thesis (M.A.Sc.)--Queen's University (Canada), 2021.
504 $a Includes bibliographical references
520 $a North America gets hit with approximately 1,100 recorded tornadoes annually. In Ontario, Canada, more than 12 tornadoes are recorded between the months of May and September annually. Two major tornadoes hit Ottawa, Canada on September 21, 2018. Ottawa, Ontario suffered an Enhanced Fujita (EF 3and EF2)tornado in Dunrobin and Arlington Woods, respectively. These severe events destroyed numerous buildings, and thus, a field investigation was conducted to observe the damages in the structures. Damage assessment data was recorded with a focus on damage failure modes and functionality of the buildings during the field investigation. According to the data collected, the damage was characterized based on different levels and discussion was formulated surrounding the way residential buildings should be built to assure resilience against tornadoes. Based on the site investigation, it was found that roofs are the most vulnerable component of a residential house and are often left with rafter, sheathing and shingle damages when exposed to high wind pressures.Fragility analysis can be used to estimate the probability of failure of a roof when constructed with specified nails and sheathing sizes. Specific type of nails, roof to wall connection details and sheathing sizes based on the damaged roofs that were previously assessed in the Dunrobin area in Ottawa,Ontario. Empirical fragility analysis considers eight different scenarios, including different sheathing and nail sizes. These baseline structures were used to analyze how different variables in a wooden roof could affect the fragility analysis results. The considered variables included the nail type, panel size, wind load and dead load.Finally, Finite element analysis (FEA) was conducted using the ABAQUS software to model and determine the structural responses of typical residential roofs. The wood-framed roof models permitted visualtion of the structural behaviour under wind pressures such as excessive stresses. The FEA model results were then compared to the results from a field investigation in Dunrobin, Ontario. This methodology will allow fora more accurate prediction of tornadic wind-induced damage on residential roofs to be used for better design and construction practices.The performance of the examined buildings from the field investigation, the fragility models and the initial ABAQUS models, suggests a need for more resilient design and retrofit methods to strengthen buildings envelopes.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Load. $3 3562902
650 4 $a Roofing. $3 863517
650 4 $a Failure. $3 3561225
650 4 $a Wind. $3 3681788
650 4 $a Injuries. $3 3563044
650 4 $a Structural engineering. $3 661234
650 4 $a Tornadoes. $3 566480
650 4 $a Finite element analysis. $3 3554062
650 4 $a Storm damage. $3 3685264
650 4 $a Boundary conditions. $3 3560411
650 4 $a Building construction. $3 2071835
650 4 $a Economics. $3 517137
650 4 $a Mathematics. $3 515831
650 4 $a Mechanics. $3 525881
650 4 $a Architectural engineering. $3 3174102
650 4 $a Atmospheric sciences. $3 3168354
650 4 $a Civil engineering. $3 860360
650 4 $a Engineering. $3 586835
655 7 $a Electronic books. $2 lcsh $3 542853
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690 $a 0725
690 $a 0543
690 $a 0501
690 $a 0537
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710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a Queen's University (Canada). $3 1017786
773 0 $t Masters Abstracts International $g 83-02.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28484620 $z click for full text (PQDT)