Thesis (M.S.)--University of Missouri-Columbia, 2008. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 25, 2008) Includes bibliographical references.

Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 104-107).

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 HAZUS® engineering analysis data which gives it validity. A reasoning mechanism based on the definition of the overall building damage in HAZUS® 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.

No description available.

Hurricane Hugo struck the coast of South Carolina on September 21, 1989 as a category 4 hurricane on the Saffir-Simpson Scale. Landsat Thematic mapper was utilized to determine the extent of damage experienced at the Santee Experimental Forest (SEF) (a part of Francis Marion National Forest) in South Carolina. Normalized Difference Vegetation Index (NDVI) and the change detection techniques were used to determine initial forest damage and to monitor the recovery over a 22-year period following Hurricane Hugo. According to the results from the NDVI analysis the SEF made a full recovery after a 10-year period. The remote sensing techniques used were effective in identifying the damage as well as the recovery.

This ethnographic analysis of the social and physical effects of Hurricane Ike in Galveston, Texas and the consequent recovery that emerged afterward is based on 20 months of field research conducted immediately before and after the storm’s landfall. The introductory chapter locates the ethnographer just prior to the hurricane as he prepared for an unexpected evacuation. It then presents the conceptual framework for a multi-sited ethnography of “disaster culture” and introduces analytic keywords of “vulnerability,” “resilience,” “dreamworlds,” and “catastrophe.” It concludes by discussing a set of historical and contemporary socio-economic conditions in Galveston. This provides a frame of reference of both the social formations of storm experiences and the public recovery dynamics that attended with Ike’s aftermath that are discussed throughout the text. This is further supplemented with an explanation of Ike’s flooding and the geographic distribution of storm damage. Chapter two begins with an ethnographic vignette of the first townhall meeting held in Galveston after Ike. This introduces several recurrent topics of concern that were formative of disaster-culture dynamics. It then provides a literature review of the anthropology of disaster before segueing into a presentation of storm narratives. It ends with an analysis that further elaborates on the formative dynamics of Galvestonian disaster culture. Chapter three provides an analysis of the public deliberations that emerged over long-term redevelopment initiatives; particularly, the advocacy practices of a faith-based consortium; advocacy on behalf of restoring the University of Texas Medical Branch; the public Long Term Recovery Committee, and a FEMA buyout program that benefited higher income property owners on the western end of the island. The fourth chapter provides an extended case study concerning the rebuilding of 569 units of public housing that were subsequently destroyed after the hurricane. The rebuilding of public housing became the most vitriolic public issue during the course of fieldwork. The concluding chapter invokes the concepts of “dreamworlds” and “catastrophe” used by historian and philosopher Walter Benjamin to show the processual dynamics between the initial hopes for collectively strengthening Galveston through federally funded redevelopment and the increasingly negative assessments of the city’s long-term urban fortunes. / text

Damages during extreme wind events highlight the weaknesses of mechanical fasteners at the roof-to-wall connections in residential timber frame buildings. The allowable capacity of the metal fasteners is based on results of unidirectional component testing that do not simulate realistic tri-axial aerodynamic loading effects. The first objective of this research was to simulate hurricane effects and study hurricane-structure interaction at full-scale, facilitating better understanding of the combined impacts of wind, rain, and debris on inter-component connections at spatial and temporal scales. The second objective was to evaluate the performance of a non-intrusive roof-to-wall connection system using fiber reinforced polymer (FRP) materials and compare its load capacity to the capacity of an existing metal fastener under simulated aerodynamic loads. The Wall of Wind (WoW) testing performed using FRP connections on a one-story gable-roof timber structure instrumented with a variety of sensors, was used to create a database on aerodynamic and aero-hydrodynamic loading on roof-to-wall connections tested under several parameters: angles of attack, wind-turbulence content, internal pressure conditions, with and without effects of rain. Based on the aerodynamic loading results obtained from WoW tests, sets of three force components (tri-axial mean loads) were combined into a series of resultant mean forces, which were used to test the FRP and metal connections in the structures laboratory up to failure. A new component testing system and test protocol were developed for testing fasteners under simulated tri-axial loading as opposed to uni-axial loading. The tri-axial and uni-axial test results were compared for hurricane clips. Also, comparison was made between tri-axial load capacity of FRP and metal connections. The research findings demonstrate that the FRP connection is a viable option for use in timber roof-to-wall connection system. Findings also confirm that current testing methods of mechanical fasteners tend to overestimate the actual load capacities of a connector. Additionally, the research also contributes to the development a new testing protocol for fasteners using tri-axial simultaneous loads based on the aerodynamic database obtained from the WoW testing.