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Author: Dezhi Liao
Publisher:
ISBN: 9781109950007
Category :
Languages : en
Pages : 131
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Book Description
This research provides realistic techniques to visualize the process of damage to residential building caused by hurricane force winds. Three methods are implemented to make the visualization useful for educating the public about mitigation measures for their homes. First, the underline physics uses Quick Collision Response Calculation. This is an iterative method, which can tune the accuracy and the performance to calculate collision response between building components. Secondly, the damage process is designed as a Time-scalable Process. By attaching a damage time tag for each building component, the visualization process is treated as a geometry animation allowing users to navigate in the visualization. The detached building components move in response to the wind force that is calculated using qualitative rather than quantitative techniques. The results are acceptable for instructional systems but not for engineering analysis. Quick Damage Prediction is achieved by using a database query instead of using a Monte-Carlo simulation. The database is based on HAZUSRTM engineering analysis data which gives it validity. A reasoning mechanism based on the definition of the overall building damage in HAZUSRTM is used to determine the damage state of selected building components including roof cover, roof sheathing, wall, openings and roof-wall connections. Exposure settings of environmental aspects of the simulated environment, such as ocean, trees, cloud and rain are integrated into a scene-graph based graphics engine. Based on the graphics engine and the physics engine, a procedural modeling method is used to efficiently render residential buildings. The resulting program, Hurricane!, is an instructional program for public education useful in schools and museum exhibits.
Author: Dezhi Liao
Publisher:
ISBN: 9781109950007
Category :
Languages : en
Pages : 131
Get Book Here
Book Description
This research provides realistic techniques to visualize the process of damage to residential building caused by hurricane force winds. Three methods are implemented to make the visualization useful for educating the public about mitigation measures for their homes. First, the underline physics uses Quick Collision Response Calculation. This is an iterative method, which can tune the accuracy and the performance to calculate collision response between building components. Secondly, the damage process is designed as a Time-scalable Process. By attaching a damage time tag for each building component, the visualization process is treated as a geometry animation allowing users to navigate in the visualization. The detached building components move in response to the wind force that is calculated using qualitative rather than quantitative techniques. The results are acceptable for instructional systems but not for engineering analysis. Quick Damage Prediction is achieved by using a database query instead of using a Monte-Carlo simulation. The database is based on HAZUSRTM engineering analysis data which gives it validity. A reasoning mechanism based on the definition of the overall building damage in HAZUSRTM is used to determine the damage state of selected building components including roof cover, roof sheathing, wall, openings and roof-wall connections. Exposure settings of environmental aspects of the simulated environment, such as ocean, trees, cloud and rain are integrated into a scene-graph based graphics engine. Based on the graphics engine and the physics engine, a procedural modeling method is used to efficiently render residential buildings. The resulting program, Hurricane!, is an instructional program for public education useful in schools and museum exhibits.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1044
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Book Description
Author: Timothy James Johnson
Publisher:
ISBN:
Category :
Languages : en
Pages : 454
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Book Description
Catastrophe modelers are responsible for estimating and predicting expected physical and monetary building losses under extreme uncertainty. In the case of hurricanes, interior damage might represent the majority of the repair bill so accurate estimates of the interior damage are paramount to a reliable predictive model. Recent studies have shown that wind-driven rain (WDR) is the predominant source of interior related losses even in the absence of visible exterior physical damage. Significant strides have been made in quantifying the external WDR deposition characteristics during hurricane events, and in identifying sources of WDR intrusion through the building envelope. Recent laboratory tests have measured the so-called rain admittance factor (which quantifies the direct impinging rain) and surface runoff coefficients (which quantify the rain surface run-oft) on buildings subjected to hurricane winds and rain. In addition, post-disaster reconnaissance surveys, following hurricanes landfalls in Florida, have shown that soffits are an important source of water penetration, which is not always specifically taken into account in current vulnerability models. Follow-up laboratory tests have measured the amount of the water penetrating through certain types of soffits. These issues of water intrusion are compounded by the fact that a hurricane rotates around any particular building. Therefore the amount of horizontal rain exposure and penetration on any particular facade or component of the building envelope will vary in time as the storm rotates, while the components go from windward to leeward exposure or vice-versa. This dissertation addresses these issues. First, a new vulnerability model for the soffit incorporates experimental data on soffit rain penetration. Second, a new method captures the effect of the storm rotation on the rain deposition and penetration, which is essentially time dependent, into an existing vulnerability model, which simulates both pressure and debris induced envelope breaches but without an explicit time component. Third, a new interior vulnerability model incorporates the new experimental data on building envelope rain deposition and surface runoff. The model succeeds in evaluating the total volume of water penetration though both defects and breaches of the envelope (including soffits), which is then transformed into interior damage. Several implementation strategies were investigated, and the final version was incorporated into version 6.1 of the Florida Public Hurricane Loss Model. This work emphasizes the critical role WDR plays in interior damage as well as provides insights into future mitigation strategies with regard to WDR management.
Author: Carol J. Friedland
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Carol C. Massarra
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Izuru Takewaki
Publisher: Frontiers Media SA
ISBN: 2832546013
Category : Science
Languages : en
Pages : 216
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Book Description
Dear readers of Frontiers in Built Environment, As the Field Chief Editor for Frontiers in Built Environment, I am happy to present this curated selection of papers that have made a significant impact within our community. Among the large number of submissions that we received, these 14 papers represent some of the best published in 2023, the year when the journal attained its first impact factor. With many high-quality papers to consider, in selecting these 14 articles we faced the challenging task of how to include papers from across the 15 distinct sections of the journal whilst at the same time achieving a sense of cohesion to the ebook overall. However, amidst this diversity, we noticed a convergence in our highest-quality papers around three pivotal themes that are central to our journal’s mission: resilience, sustainability, and technology. In this way, despite the broad range of topics covered within both our journal and this selection, this ebook can truly be considered representative of our journal as a whole. These carefully chosen papers encompass high-quality original research and comprehensive reviews, which also embody the ethos of innovation and excellence that defines our journal. As the Field Chief Editor, I am thankful to all authors who have enriched our journal with their high-caliber work. I extend sincere appreciation to the dedicated efforts of our editors and reviewers, whose invaluable contributions have been instrumental in shaping Frontiers in Built Environment in 2023.
Author: Arjun K. Gupta
Publisher: CRC Press
ISBN: 9780824753962
Category : Mathematics
Languages : en
Pages : 594
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Book Description
A milestone in the published literature on the subject, this first-ever Handbook of Beta Distribution and Its Applications clearly enumerates the properties of beta distributions and related mathematical notions. It summarizes modern applications in a variety of fields, reviews up-and-coming progress from the front lines of statistical research and practice, and demonstrates the applicability of beta distributions in fields such as economics, quality control, soil science, and biomedicine. The book discusses the centrality of beta distributions in Bayesian inference, the beta-binomial model and applications of the beta-binomial distribution, and applications of Dirichlet integrals.
Author: Alicia Díazde León
Publisher:
ISBN: 9780784412640
Category : Civil engineering
Languages : en
Pages : 0
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Book Description
Proceedings of the Sixth Congress on Forensic Engineering, held in San Francisco, California, October 31-November 3, 2012. Sponsored by the Technical Council on Forensic Engineering of ASCE. This collection contains 144 peer-reviewed papers presenting findings intended to help forensic engineers develop practices and procedures to reduce the number of failures, disseminate information on failures, and provide guidelines for conducting failure investigations and for ethical conduct. Topics include: bridges; building envelopes; critical infrastructure; design practices; disaster risk management; education; emerging technologies; fires; floods; flooring; geotechnical failures; hurricanes, tornadoes, and extreme winds; investigative methodologies; practices to reduce failures; professional practice; research and testing; residential construction; and structural failures. This will be valuable to engineers, researchers, educators, and students involved in forensic engineering.
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 030948961X
Category : Science
Languages : en
Pages : 101
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Book Description
Flooding is the natural hazard with the greatest economic and social impact in the United States, and these impacts are becoming more severe over time. Catastrophic flooding from recent hurricanes, including Superstorm Sandy in New York (2012) and Hurricane Harvey in Houston (2017), caused billions of dollars in property damage, adversely affected millions of people, and damaged the economic well-being of major metropolitan areas. Flooding takes a heavy toll even in years without a named storm or event. Major freshwater flood events from 2004 to 2014 cost an average of $9 billion in direct damage and 71 lives annually. These figures do not include the cumulative costs of frequent, small floods, which can be similar to those of infrequent extreme floods. Framing the Challenge of Urban Flooding in the United States contributes to existing knowledge by examining real-world examples in specific metropolitan areas. This report identifies commonalities and variances among the case study metropolitan areas in terms of causes, adverse impacts, unexpected problems in recovery, or effective mitigation strategies, as well as key themes of urban flooding. It also relates, as appropriate, causes and actions of urban flooding to existing federal resources or policies.
Author: Coasts, Oceans, Ports and Rivers Institute (American Society of Civil Engineers)
Publisher: Amer Society of Civil Engineers
ISBN: 9780784411858
Category : Nature
Languages : en
Pages : 954
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Book Description
This collection contains 79 papers addressing the challenges and lessons learned along the coastlines of the world, presented at the 2011 Solutions to Coastal Disasters Conference, held in Anchorage, Alaska, June 25-29, 2011.
