Seismic Assessment Of Unreinforced Masonry Buildings In Canada
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Seismic Assessment Of Unreinforced Masonry Buildings In Canada
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Author : Gilbert Bélec
language : en
Publisher:
Release Date : 2016
Seismic Assessment Of Unreinforced Masonry Buildings In Canada written by Gilbert Bélec and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Seismic Risk Assessment Of Unreinforced Masonry Buildings Using Fuzzy Based Techniques For The Regional Seismic Risk Assessment Of Ottawa Ontario
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Author : Amid El Sabbagh
language : en
Publisher:
Release Date : 2014
Seismic Risk Assessment Of Unreinforced Masonry Buildings Using Fuzzy Based Techniques For The Regional Seismic Risk Assessment Of Ottawa Ontario written by Amid El Sabbagh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with University of Ottawa theses categories.
Unreinforced masonry construction is considered to be the most vulnerable forms of construction as demonstrated through recent earthquakes. In Canada, many densely populated cities such as (Vancouver, Montreal and Ottawa) have large inventories of seismically vulnerable masonry structures. Although measures have been taken to rehabilitate and increase the seismic resistance of important and historic structures, many existing unreinforced masonry structures have not been retrofitted and remain at risk in the event of a large magnitude earthquake. There is therefore a need to identify buildings at risk and develop tools for assessing the seismic vulnerability of existing unreinforced masonry structures in Canada. This thesis presents results from an ongoing research program which forms part of a multi-disciplinary effort between the University of Ottawa's Hazard Mitigation and Disaster Management Research Centre and the Geological Survey of Canada (NRCAN) to assess the seismic vulnerability of buildings in dense urban areas such as Ottawa, Ontario. A risk-based seismic assessment tool (CanRisk) has been developed to assess the seismic vulnerability of existing unreinforced masonry and reinforced concrete structures. The seismic risk assessment tool exploits the use of fuzzy logic, a soft computing technique, to capture the vagueness and uncertainty within the evaluation of the performance of a given building. In order to conduct seismic risk assessments, a general building inventory and its spatial distribution and variability is required for earthquake loss estimations. The Urban Rapid Assessment Tool (Urban RAT) is designed for the rapid collection of building data in urban centres. This Geographic Information System (GIS) based assessment tool allows for intense data collection and revolutionizes the traditional sidewalk survey approach for collecting building data. The application of CanRisk and the Urban RAT tool to the City of Ottawa is discussed in the following thesis. Data collection of over 13,000 buildings has been obtained including the seismic risk assessment of 1,465 unreinforced masonry buildings. A case study of selected URM buildings located in the City of Ottawa was conducted using CanRisk. Data obtained from the 2011 Christchurch Earthquake in New Zealand was utilized for verification of the tool.
Section 10
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Author : Jitendra Bothara
language : en
Publisher:
Release Date : 2015
Section 10 written by Jitendra Bothara and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Assessment And Improvement Of The Structural Performance Of Buildings In Earthquakes
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Author :
language : en
Publisher:
Release Date : 2015
Assessment And Improvement Of The Structural Performance Of Buildings In Earthquakes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Buildings categories.
Seismic Strengthening Of Unreinforced Masonry Buildings
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Author : Kit M. Wong
language : en
Publisher:
Release Date : 1987
Seismic Strengthening Of Unreinforced Masonry Buildings written by Kit M. Wong and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Buildings categories.
Seismic Risk Assessment Of Unreinforced Brick Masonry Buildings
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Author : Mohammad Javed
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2011-09
Seismic Risk Assessment Of Unreinforced Brick Masonry Buildings written by Mohammad Javed and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09 with categories.
This book covers the seismic vulnerability assessment of unreinforced brick masonry (URBM) buildings. A method for seismic vulnerability assessment, based on the experimental results of series of URBM walls, is developed. The method produced satisfactory results when compared with the results of full-scale URBM buildings tested at various laboratories. The proposed method, although developed for URBM buildings, can also be applied to other types of masonry if the properties required to quantify the seismic performance are experimentally determined. The proposed method is used to assess the seismic risk of URBM building stock of Northern Pakistan as a case study. Fragility curves for buildings stock are drawn to determine the probabilities of occurrence of various performance levels at various levels of ground shaking. It is found that the probability of occurrence of damages corresponding to various performance levels of single- and double- story buildings do not differ significantly. It is also concluded that unreinforced brick masonry, if properly constructed, can be safely used in localities placed in seismic zone 2b as recommended by uniform Building code (UBC-97) and below
The Shakeout Scenario Supplemental Study Unreinforced Masonry Urm Buildings
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Author :
language : en
Publisher: SPA Risk LLC
Release Date :
The Shakeout Scenario Supplemental Study Unreinforced Masonry Urm Buildings written by and has been published by SPA Risk LLC this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Seismic Analysis And Assessment Of Historic Unreinforced Masonry Structures
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Author : Ryan Manuel Valadao
language : en
Publisher:
Release Date : 2021
Seismic Analysis And Assessment Of Historic Unreinforced Masonry Structures written by Ryan Manuel Valadao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
This thesis is targeted towards understanding the behaviour of unreinforced masonry structures (URM) under lateral loads that simulate earthquake effects, as well what aspects of their composition affects their behaviour. Masonry is a composite material containing bricks and mortar. In assessment of existing masonry construction uncertainties prevail regarding the homogenized material mechanical properties, which affect the estimated demands on structural masonry components and their corresponding resistances. To understand these effects, a series of nonlinear finite element parametric studies were conducted studying critical factors involved in the makeup of masonry. In addition, studies were conducted on the effectiveness of empirical equations in estimating the mechanical properties of masonry. The final aspect was three-dimensional finite element modelling of a scale URM structure that had been tested on a shake table. The findings of this study are crucial in determining the vulnerability of URM structures which include heritage construction to seismic hazards.
Seismic Assessment Of Out Of Plane Loaded Unreinforced Masonry Walls
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Author : Hossein Derakhshan
language : en
Publisher:
Release Date : 2011
Seismic Assessment Of Out Of Plane Loaded Unreinforced Masonry Walls written by Hossein Derakhshan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Buildings categories.
This thesis investigates the behaviour of URM walls subjected to out-of-plane seismic forces, and the study is focused primarily on single-storey and two-storey one-way spanning walls connected to flexible diaphragms. Expressions that describe the intermediate-height cracking of out-of-plane loaded one-way spanning URM walls were formulated, and wall force-displacement behaviour and the sensitivity to various parameters were studied. Crack height was identified to be particularly sensitive to low values of masonry bond strength and/or to low values of applied overburden. Crack height was found to have significant effects on both wall instability displacement and lateral resistance. A comprehensive quasi-static testing programme was developed by subjecting full-scale two-leaf and three-leaf URM walls to out-of-plane uniform forces. The objective of the tests was to develop an idealised predictive model for the out-of-plane behaviour of URM walls, by accounting the effects of different mortar mixes, multi-leaf construction and overburden loads. An in-field out-of-plane pushover testing programme was next completed, and some of the key questions about actual wall performance were answered. Wall support types and characteristics and their effect on wall behaviour were investigated by testing multiple walls having different support configurations, which included timber diaphragms, concrete ring beam, and grouted steel anchorage bars. The effect of plaster and wall finishings was investigated, and the conditions upon which the previously developed idealised predictive model had acceptable results were determined. A simplified reduced-degree-of-freedom numerical model was developed to study the dynamic behaviour of URM walls, with critical requirements of the model being an ability to account for the effects of flexible supports and an ability to predict the behaviour of two-storey walls. An existing assessment procedure for seismic assessment of out-of-plane loaded URM walls was reviewed in detail, an alternative methodology for wall assessment was introduced, and seismic assessment charts were presented for single-storey and two-storey walls.
Damage From 20th Century Earthquakes In Eastern Canada And Seismic Vulnerability Of Unreinforced Masonry Buildings
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Author : Michel Bruneau
language : en
Publisher:
Release Date : 1994
Damage From 20th Century Earthquakes In Eastern Canada And Seismic Vulnerability Of Unreinforced Masonry Buildings written by Michel Bruneau and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.