Simplified Approach for In-Plane Strength Capacity of URM Walls by Using Lower-Bound Limit Analysis and Predefined Damage Patterns

In this study, a two-phase simplified approach is proposed to predict the in-plane strength capacity of unreinforced masonry (URM) walls. In the first phase, in-plane damage and failure patterns of URM walls are determined from available observational (field) data, experimental data and also from nu...

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Main Authors: Derya Karadeniz, Mustafa Tolga Yilmaz, Cemal Icel, Murat Altug Erberik
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/12/6/777
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author Derya Karadeniz
Mustafa Tolga Yilmaz
Cemal Icel
Murat Altug Erberik
author_facet Derya Karadeniz
Mustafa Tolga Yilmaz
Cemal Icel
Murat Altug Erberik
author_sort Derya Karadeniz
collection DOAJ
description In this study, a two-phase simplified approach is proposed to predict the in-plane strength capacity of unreinforced masonry (URM) walls. In the first phase, in-plane damage and failure patterns of URM walls are determined from available observational (field) data, experimental data and also from numerical analysis data. Then, a set of rules are proposed to estimate damage and failure patterns of URM wall panels. In the second phase, this valuable information is employed to develop a simplified numerical model with a coarse mesh for the masonry wall, which is consistent with the crack formation at the ultimate state. Then, lower-bound limit analysis approach is used to predict the failure load of the wall without any detailed micro-element analysis. At the final stage, the proposed approach is verified by comparing the numerical results with experimental data from URM wall tests. By the assistance of this approach, it becomes possible to estimate the lateral capacities of ordinary, non-engineered URM walls and buildings from damage patterns at failure state. As an ultimate goal, this structural information can be used for seismic risk assessment of regions where the building typology considered in this study governs the building stock.
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spelling doaj.art-7c5cc943ad2945f7b311ff470813eb812023-11-23T15:53:09ZengMDPI AGBuildings2075-53092022-06-0112677710.3390/buildings12060777Simplified Approach for In-Plane Strength Capacity of URM Walls by Using Lower-Bound Limit Analysis and Predefined Damage PatternsDerya Karadeniz0Mustafa Tolga Yilmaz1Cemal Icel2Murat Altug Erberik3Department of Engineering Science, Middle East Technical University, Ankara 06800, TurkeyDepartment of Engineering Science, Middle East Technical University, Ankara 06800, TurkeyPROMER Consultancy Engineering Inc., Ankara 06800, TurkeyDepartment of Civil Engineering, Middle East Technical University, Ankara 06800, TurkeyIn this study, a two-phase simplified approach is proposed to predict the in-plane strength capacity of unreinforced masonry (URM) walls. In the first phase, in-plane damage and failure patterns of URM walls are determined from available observational (field) data, experimental data and also from numerical analysis data. Then, a set of rules are proposed to estimate damage and failure patterns of URM wall panels. In the second phase, this valuable information is employed to develop a simplified numerical model with a coarse mesh for the masonry wall, which is consistent with the crack formation at the ultimate state. Then, lower-bound limit analysis approach is used to predict the failure load of the wall without any detailed micro-element analysis. At the final stage, the proposed approach is verified by comparing the numerical results with experimental data from URM wall tests. By the assistance of this approach, it becomes possible to estimate the lateral capacities of ordinary, non-engineered URM walls and buildings from damage patterns at failure state. As an ultimate goal, this structural information can be used for seismic risk assessment of regions where the building typology considered in this study governs the building stock.https://www.mdpi.com/2075-5309/12/6/777URM wallin-plane strengthlower-bound limit analysismasonry damagecrack propagationmacro panel
spellingShingle Derya Karadeniz
Mustafa Tolga Yilmaz
Cemal Icel
Murat Altug Erberik
Simplified Approach for In-Plane Strength Capacity of URM Walls by Using Lower-Bound Limit Analysis and Predefined Damage Patterns
Buildings
URM wall
in-plane strength
lower-bound limit analysis
masonry damage
crack propagation
macro panel
title Simplified Approach for In-Plane Strength Capacity of URM Walls by Using Lower-Bound Limit Analysis and Predefined Damage Patterns
title_full Simplified Approach for In-Plane Strength Capacity of URM Walls by Using Lower-Bound Limit Analysis and Predefined Damage Patterns
title_fullStr Simplified Approach for In-Plane Strength Capacity of URM Walls by Using Lower-Bound Limit Analysis and Predefined Damage Patterns
title_full_unstemmed Simplified Approach for In-Plane Strength Capacity of URM Walls by Using Lower-Bound Limit Analysis and Predefined Damage Patterns
title_short Simplified Approach for In-Plane Strength Capacity of URM Walls by Using Lower-Bound Limit Analysis and Predefined Damage Patterns
title_sort simplified approach for in plane strength capacity of urm walls by using lower bound limit analysis and predefined damage patterns
topic URM wall
in-plane strength
lower-bound limit analysis
masonry damage
crack propagation
macro panel
url https://www.mdpi.com/2075-5309/12/6/777
work_keys_str_mv AT deryakaradeniz simplifiedapproachforinplanestrengthcapacityofurmwallsbyusinglowerboundlimitanalysisandpredefineddamagepatterns
AT mustafatolgayilmaz simplifiedapproachforinplanestrengthcapacityofurmwallsbyusinglowerboundlimitanalysisandpredefineddamagepatterns
AT cemalicel simplifiedapproachforinplanestrengthcapacityofurmwallsbyusinglowerboundlimitanalysisandpredefineddamagepatterns
AT murataltugerberik simplifiedapproachforinplanestrengthcapacityofurmwallsbyusinglowerboundlimitanalysisandpredefineddamagepatterns