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首页> 外文期刊>Natural Hazards Review >Significance of Historical Hurricane Activity on Structural Damage Profile and Posthurricane Population Fluctuation in South Florida Urban Areas
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Significance of Historical Hurricane Activity on Structural Damage Profile and Posthurricane Population Fluctuation in South Florida Urban Areas

机译：历史飓风活动对南佛罗里达市区的结构破坏特征和飓风后人口波动的意义

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摘要

The historical hurricane tracking records for the last 100 years indicate that the southeast regions of Florida have had the highest frequency of hurricane hits in the United States. Land-use characteristics and the extent of land-development activities are the major factors that contribute to vulnerability to hurricanes in high-risk coastal areas. The objectives of this study were to analyze the structural damages observed after Hurricane Andrew in relation to year of construction of the buildings to assess the impact of historical hurricane experience on building structures and population fluctuations in South Florida, specifically in Dade County. The relatively long period of low hurricane activity from 1950 to 1992 has resulted in increased population density and coastal development in South Florida, significantly increasing the vulnerability of the region. The structural damage data compiled by the Metropolitan Dade Department of Building and Zoning after Hurricane Andrew in 1992 show that the long period of low hurricane activity in Dade County has also resulted in lower construction quality. In general, the older housing units constructed after the previous major hurricanes (in 1926, 1945, and 1950) showed less damage than the units constructed during 1970 to 1990. Although there was a decline in population immediately after Hurricane Andrew, the population increase trend was similar to the prehurricane level after 2 years.
机译：过去100年的历史飓风跟踪记录表明，佛罗里达州的东南部地区在美国遭受飓风袭击的频率最高。土地利用特征和土地开发活动的范围是导致高风险沿海地区容易遭受飓风袭击的主要因素。这项研究的目的是分析飓风安德鲁飓风后与建筑物建造年份有关的结构破坏，以评估飓风的历史经验对南佛罗里达州，特别是达德县的建筑物结构和人口波动的影响。从1950年到1992年，飓风活动时间较长，导致南佛罗里达州的人口密度增加和沿海地区发展，大大增加了该地区的脆弱性。大都市大德建筑和分区局在1992年安德鲁飓风后汇编的结构破坏数据表明，大德县长期以来的低飓风活动也导致建筑质量下降。通常，在之前的主要飓风（1926、1945和1950）之后建造的旧住房单元所遭受的破坏要少于1970至1990年间建造的住房单元。尽管安德鲁飓风过后人口迅速减少，但人口增长趋势两年后与飓风前的水平相似。

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