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首页> 外文期刊>Natural Hazards Review >Vulnerability of Reinforced-Concrete-Frame Buildings and Their Occupants in the 2009 L'Aquila, Italy, Earthquake
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Vulnerability of Reinforced-Concrete-Frame Buildings and Their Occupants in the 2009 L'Aquila, Italy, Earthquake

机译：在2009年意大利拉奎拉大地震中，钢筋混凝土框架建筑物及其居民的脆弱性

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摘要

Reinforced-concrete-frame buildings, particularly midrise multifamily condominium structures, experienced significant damage in the 2009 L'Aquila, Italy earthquake. The most frequently observed damage was cracking and failure of nonstructural masonry infill walls, but some buildings also experienced structural damage, including column shear failure and collapse. Fieldwork conducted approximately 3 weeks after the earthquake was used to collect data from approximately 483 concrete frame structures in L'Aquila, including building location, characteristics, damage, and postearthquake occupancy. A second survey 1 year later investigated whether buildings had been repaired or reoccupied. These results show that the building damage is correlated to height, usage, elevation irregularities in strength and stiffness, and the ground-shaking intensity at each site. This information provides the basis for empirically derived fragility functions for this typology of concrete frame. Approximately 0.2% of concrete structures collapsed. The study also shows that occupants of tall and older condominium structures in areas north and west of the city center were particularly affected; single-family homes were less damaged and more likely to be occupied during fieldwork. Damaged concrete buildings have led to significant disruption of the community and social fabric, causing the temporary or permanent closure of small businesses, medical offices, restaurants, churches, and schools.
机译：钢筋混凝土结构的建筑物，特别是中层多户公寓结构，在2009年意大利拉奎拉地震中遭受了严重破坏。最经常观察到的损坏是非结构性砖石填充墙的开裂和破坏，但一些建筑物也经历了结构性破坏，包括柱剪破坏和倒塌。地震大约在3周后进行了实地调查，收集了拉奎拉（L'Aquila）大约483个混凝土框架结构的数据，包括建筑物的位置，特征，损坏和地震后的占用情况。一年后进行的第二次调查调查了建筑物是否已维修或重新占用。这些结果表明，建筑物损坏与高度，用途，强度和刚度的高程不规则性以及每个站点的震动强度相关。该信息为根据经验得出的混凝土框架类型的脆弱性函数提供了基础。大约0.2％的混凝土结构倒塌了。研究还表明，在市中心以北和西部地区，高层公寓结构的居住者受到的影响尤为明显；单户住宅受损较少，在野外工作期间更容易被占用。损坏的混凝土建筑已导致社区和社会结构的重大破坏，导致小型企业，医疗办公室，饭店，教堂和学校的暂时或永久关闭。

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