Techno Press
Techno Press

Wind and Structures   Volume 2, Number 3, September 1999, pages 133-150
Assessment and quantification of hurricane induced damage to houses
Gregory L.F. Chiu and Sara Jean Wadia-Fascetti

Abstract     [Full Text]
    Significant costs to the public and private sectors due to recent extreme wind events have motivated the need for systematic post-hurricane damage data collection and analysis. Current post disaster data are collected by many different interested groups such as government agencies, voluntary disaster relief agencies, representatives of media companies, academicians and companies in the private sector. Each group has an interest in a particular type of data. However, members of each group collect data using different techniques. This disparity in data is not conducive to quantifying damage data and, therefore, inhibits the statistical and spatial description of damage and comparisons of damage among different extreme wind events. The data collection does not allow comparisons of data or results of analyses within a group and also prohibits comparison of damage data and information among different groups. Typically, analyses of data from a given event lead to different conclusion depending upon the definition of damage used by individual investigators and the type of data collected making it difficult for members of groups to compare the results of their analyses with a common language and basis. A formal method of data collection and analysis-within any single group-would allow comparisons to be made among different individuals, hazardous events and eventually among different groups, thus facilitating the management and reduction of damage due to future disaster. rnThis research introduces a definition of damage to single family dwellings, and a common method of data collection and analysis suited for groups interested in regional characterization of damage. The current state-of-data is presented and a method for data collection is recommended based on these existing data collection methods. A fixed-scale damage index is proposed to consider the damage to a dwelling
Key Words
     condition assessment; damage index; data collection; damage definition; structure functionality; Hurricane Iniki; post-hurricane damage assessment; extreme-wind.
Department of Building and Construction, City University of Hong Kong, Tat Chee Ave. Kowloon, Hong KongrnDepartment of Civil and Environmental Engineering, Northeastern University, Boston, Massachusetts 02115, U.S.A.

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