Download or read book Damage Prediction of Low rise Buildings Under Hurricane Winds written by Fang Pan and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Interior Damage Prediction in Residential Buildings Due to Hurricane Induced Rain Penetration written by Timothy James Johnson and published by . This book was released on 2015 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Damage Prediction for Low rise Buildings written by and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting the Vulnerability of Typical Residential Buildings to Hurricane Damage written by Anne D. Cope and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The core of this model is a Monte Carlo Simulation engine that generates damage information for typical Florida homes, using a component approach. The simulation compares deterministic wind loads, and the probabilistic capacity of vulnerable building components to resist these loads, to determine the probability of damage. In this manner, probabilistic structural damage is identified over a range of assigned wind speeds. Monetary loss associated with structural damage and the likelihood of occurrence for discrete wind speeds will be determined by models under development by other groups in the project.

Download or read book Predicting the Vulnerability of Typical Commercial and Single Family Residential Buildings to Hurricane Damage written by Johann Everton Weekes and published by . This book was released on 2014 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hurricane impacts have caused significant damage to residential and commercial structures, producing billions of dollars in insured losses. Numerical models are widely used by insurance companies in the prediction of loss cost. Several such loss projection models have been developed by private industry, and the State of Florida sponsored development of a non-proprietary hurricane loss model, known as the Florida Public Hurricane Loss Model (FPHLM). This model resulted from a multi-university effort to quantify the damages and cost of repairs for structures that have been subjected to hurricane force winds. The original FPHLM focused on single-family residential housing. The model is now extended to cover commercial-residential buildings ranging from multi-story apartments to the high rise condominiums typically found lining the beaches of South Florida. This paper proposal focuses on the development of the exterior vulnerability component of the commercial-residential model, and provides a description of the strategies to probabilistically quantify physical exterior damage for two models: low-rise and mid/high rise commercial-residential structures.

Download or read book Strengthening Windstorm Hazard Mitigation written by United States. Congress. House. Committee on Science and published by . This book was released on 2004 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improvements to the Florida Public Hurricane Loss Model Including a Comparison of ASCE 7 05 to ASCE 7 10 written by Steven Andrew Bell and published by . This book was released on 2013 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Florida Public Hurricane Loss Model is a catastrophe model commissioned by the State of Florida with the primary purpose of predicting insured losses of residential buildings due to hurricanes. The model has been in a state of ongoing development since 2001, and is contributed to by several universities around the state of Florida. The model is comprised of three main components. The Meteorological Component predicts and models hurricane behavior. The Vulnerability Component predicts and models building damage given specific wind conditions. Lastly, the Actuarial Component takes data from the other two to predict and analyze economic losses. This paper presents several updates to the Vulnerability Component of the model. First, a more realistic cost analysis is presented, created based on information gathered from actual building contractors as well as RS Means. The new cost analysis includes updates such as unit costs that scale with repair size, considerations for actual roof repair methodology, and various other factors specific to the particular building requirements and market conditions of Florida. Second, an analysis of Contents (as well as ALE) vs. Building damage curves (aka Type 2 curves), which allow the Vulnerability Component of the model to be validated independently of the Meteorological Component, is presented. A procedure for their use in model validation is also given, along with a brief sample validation which illustrates the usefulness of the Type 2 curves in uncovering hidden issues with the model. Finally, a brief study analyzing the effects of the changes made to the wind provisions of ASCE 7-10 is presented. The study shows that the changes implemented in ASCE 7-10 will have little effect, in the case of low-rise, personal residential buildings, on actual building practices in the state of Florida.

Download or read book Physically based Visualization of Residential Building Damage Process in Hurricane written by Dezhi Liao and published by . This book was released on 2007 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Progress in Industrial and Civil Engineering III written by Jian Guo Liang and published by Trans Tech Publications Ltd. This book was released on 2014-09-19 with total page 2506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collection of selected, peer reviewed papers from the 2014 3rd International Conference on Civil, Architectural and Hydraulic Engineering (ICCAHE 2014), July 30 -31, 2014, Hangzhou, China. Volume is indexed by Thomson Reuters CPCI-S (WoS). The 477 papers are grouped as follows: Chapter 1: Structural Engineering, Chapter 2: Geotechnical and Geological Engineering, Chapter 3: Tunnel, Subway and Underground Facilities, Chapter 4: Bridge Engineering, Chapter 5: Road and Railway Engineering, Chapter 6: Coastal Engineering, Chapter 7: Materials and Technologies of Construction, Chapter 8: Computational Mechanics and Applied Mechanics, Chapter 9: Seismic Engineering, Chapter 10: Disaster Prevention and Mitigation, Chapter 11: Heating, Gas Supply, Ventilation and Air Conditioning Works, Chapter 12: Surveying Engineering, Cartography and Geographic Information Systems, Chapter 13: Architectural Design and Its Theory, Chapter 14: Project Management, Chapter 15: Engineering Management, Civil and Construction Industry Management, Infrastructure Demand and Supply, Engineering Education.

Download or read book CFD Based Probabilistic Framework for Evaluation of Coastal Residential Buildings Under Combined Hurricane Wind and Surge Flood written by Mehrshad Amini and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Coastal residential buildings are vulnerable to significant damage due to hurricane related hazards such as storm surge, wind loads, and inundation. Recent damage to residential buildings caused by hurricanes in coastal areas illustrates poor performance of coastal structures against hurricane related hazards, which indicates that recent standards and building code provisions need to be improved in terms of loading and design requirements. A fundamental problem with current standards is that most follow the deterministic approach to some extent. For instance, both uncertainties regarding flood hazards and building structure characteristics such as elevation, number of stories, and size have not been considered in current flood risk assessment methods, which causes many concerns in terms of validity and reliability. On the other hand, Performance-Based Engineering (PBE) methodology is a well-known design approach to address inherent uncertainties for assessing and mitigating the risk associated with engineering structures. However, with only limited PBE frameworks in hurricane engineering fields proposed during recent years, there is lack of sufficient understanding of different aspects for development of standards needed for hurricane resistant design and retrofit of residential buildings. Furthermore, given the concurrent multi-hazard nature of hurricanes, designers need to address more complex loading conditions and design decisions. Based on the performance of coastal residential buildings in past hurricanes, elevating the lowest floor above the expected Base Flood Elevation (BFE) has been found to be the most effective strategy to reduce direct damage caused by flood and storm surge. However, elevated buildings can be exposed to different levels of wind loads due to unique aerodynamic characteristics, which leads to the need for more stringent design of structural and foundation systems. In addition, past hurricanes have shown that the actual flood levels can be several feet higher than the BFE, which means even pile-elevated houses may still be vulnerable to damage. Therefore, some communities encourage homeowners to add freeboard to the specific BFE in order to mitigate the risk of damage. The amount of freeboard depends on many factors, for which there is no rational approach for building owners and designers to make the most efficient decision. This study proposes a probabilistic framework in order to investigate the combined interaction of hurricane wind and coastal surge flood on typical residential homes upgraded based on various retrofit strategies. The goal of developing such a framework is to contribute to holistic and quantitative approach in evaluating the potential damage to retrofitted, particularly elevated coastal residential buildings. This proposed probabilistic framework consists of four main modules, namely hazard analysis, structural analysis, damage assessment, and loss measurement. A literature review was carried out to evaluate the performance of coastal residential buildings with respect to direct and indirect damage. The result of the literature review on mitigation techniques are discussed according to hurricane wind and flood-related hazards. Identification and quantification of these hurricane-associated hazards is the first step to understanding the behavior of residential buildings and identifying common failure mechanisms and mitigation techniques. The Computational Fluid Dynamic (CFD) analysis was performed to obtain realistic loading scenarios (wind and wave effects) and corresponding engineering demand parameters, respectively. A comprehensive parametric analysis was conducted to understand the effect of various factors, including wind angle, wave type (regular and irregular waves), building elevation, and pier distribution on wind- and wave-induced loads on elevated coastal residential buildings. The CFD models were validated based on available data in terms of wind and wave loadings separately due to lack of current laboratory experiments. The resistance capacities and statistical characteristics for various building components under positive and negative pressures were obtained from experimental tests available in the literature review. The procedure relies on the Monte Carlo Simulation (MCS) to propagate uncertainties through the CFD analysis. Finally, damage assessment and vulnerability analysis were conducted based on selected failure criteria (e.g., HAZUS database) to develop physics-based fragility curves based on four different damage states, and finally obtain loss curves in terms of the building elevation for the selected residential building. A typical wood-frame residential building was selected for the case study to develop the fragility curves for four damage states and the corresponding loss curve based on HAZUS-MH. The building was assumed to be located in the Bolivar Peninsula, where it was heavily impacted by Hurricane Ike as a Category 2 storm. The fragility curves and loss curve were developed for two different scenarios: the building with 8d and 6d common nails used for the connection of roof and floor sheathings. These loss curves predict the expected damage ratio of the building due to combined effects of wind and waves considering the specific house elevation, which can help design professionals and home builders in order to select a reasonable freeboard above the base flood elevation determined based on a probabilistic approach rather than available deterministic methods. This framework can also be utilized in risk assessment and decision analysis of other types of structures against various environmental hazards.

Download or read book Extreme Natural Hazards Disaster Risks and Societal Implications written by Alik Ismail-Zadeh and published by Cambridge University Press. This book was released on 2014-04-17 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique interdisciplinary approach to disaster risk research, including global hazards and case-studies, for researchers, graduate students and professionals.

Download or read book Multi hazard Approaches to Civil Infrastructure Engineering written by Paolo Gardoni and published by Springer. This book was released on 2016-06-22 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection focuses on the development of novel approaches to address one of the most pressing challenges of civil engineering, namely the mitigation of natural hazards. Numerous engineering books to date have focused on, and illustrate considerable progress toward, mitigation of individual hazards (earthquakes, wind, and so forth.). The current volume addresses concerns related to overall safety, sustainability and resilience of the built environment when subject to multiple hazards: natural disaster events that are concurrent and either correlated (e.g., wind and surge); uncorrelated (e.g., earthquake and flood); cascading (e.g., fire following earthquake); or uncorrelated and occurring at different times (e.g., wind and earthquake). The authors examine a range of specific topics including methodologies for vulnerability assessment of structures, new techniques to reduce the system demands through control systems; instrumentation, monitoring and condition assessment of structures and foundations; new techniques for repairing structures that have suffered damage during past events, or for structures that have been found in need of strengthening; development of new design provisions that consider multiple hazards, as well as questions from law and the humanities relevant to the management of natural and human-made hazards.

Download or read book Wind Issues in the Design of Buildings written by Leighton Cochran and published by ASCE Publications. This book was released on 2012 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind Issues in the Design of Buildings explains the ways that structural designers accommodate the impact of extreme wind events on the built environment. By studying the flow and pressure fields around buildings, architects and engineers can identify and select the best strategies for ensuring that a building will resist the loads due to high winds, maintaining pleasant conditions in outdoor spaces, assessing natural ventilation potential, and seeing that any exhaust fumes are dispersed adequately. This volume identifies wind characteristics and describes the effects of winds generated by hurricanes, tornadoes, and thunderstorms. It explains the internal and external pressures on a building's cladding (skin) and the effects of wind-borne debris. A building's response to the structural loads caused by wind is outlined, along with techniques for resisting wind. A chapter is devoted to wind tunnels and physical modeling to predict structural loads, cladding response, pedestrian experience, topographic effects, and snow deposition. A section of frequently asked questions, a glossary, and recommended reading make this material in this volume accessible to students and nontechnical members of project teams. Structural engineers and architects will find this book a useful aide in explaining wind-related issues to clients, builders, building officials, and owners. Students in structural and architectural engineering will welcome the clear, concise presentation of an important component of structural design.

Download or read book Reliability Risk and Safety Three Volume Set written by Radim Bris and published by CRC Press. This book was released on 2009-08-20 with total page 2480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Containing papers presented at the 18th European Safety and Reliability Conference (Esrel 2009) in Prague, Czech Republic, September 2009, Reliability, Risk and Safety Theory and Applications will be of interest for academics and professionals working in a wide range of industrial and governmental sectors, including Aeronautics and Aerospace, Aut

Download or read book The Risk of Hurricane Wind Damage to Buildings in South Carolina written by Peter R. Sparks and published by . This book was released on 1990* with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Editorial note: On September 22, 1989, Hurricane Hugo provided South Carolina with a painful demonstration of the accuracy of many points made in this paper, prepared a year earlier. This edition is made available with minor changes, to draw attention to critical issues pertinent to reconstruction and preparation for future natural disasters, and includes excerpts from news reports that underscore the reality of these issues in the context of a major hurricane. Dr. Sparks is presently engaged in detailed research to assess the effects of Hugo on coastal construction in the state [South Carolina]."--Page 2 of cover.

Download or read book Hurricane Alicia prediction Damage and Recovery Efforts written by United States. Congress. House. Committee on Science and Technology. Subcommittee on Natural Resources, Agriculture Research, and Environment and published by . This book was released on 1984 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Risk Modeling Assessment and Management written by Yacov Y. Haimes and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines timely multidisciplinary applications, problems, and case histories in risk modeling, assessment, and management Risk Modeling, Assessment, and Management, Third Edition describes the state of the art of risk analysis, a rapidly growing field with important applications in engineering, science, manufacturing, business, homeland security, management, and public policy. Unlike any other text on the subject, this definitive work applies the art and science of risk analysis to current and emergent engineering and socioeconomic problems. It clearly demonstrates how to quantify risk and construct probabilities for real-world decision-making problems, including a host of institutional, organizational, and political issues. Avoiding higher mathematics whenever possible, this important new edition presents basic concepts as well as advanced material. It incorporates numerous examples and case studies to illustrate the analytical methods under discussion and features restructured and updated chapters, as well as: A new chapter applying systems-driven and risk-based analysis to a variety of Homeland Security issues An accompanying FTP site—developed with Professor Joost Santos—that offers 150 example problems with an Instructor's Solution Manual and case studies from a variety of journals Case studies on the 9/11 attack and Hurricane Katrina An adaptive multiplayer Hierarchical Holographic Modeling (HHM) game added to Chapter Three This is an indispensable resource for academic, industry, and government professionals in such diverse areas as homeland and cyber security, healthcare, the environment, physical infrastructure systems, engineering, business, and more. It is also a valuable textbook for both undergraduate and graduate students in systems engineering and systems management courses with a focus on our uncertain world.