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| Titel |
Structural damages of L'Aquila (Italy) earthquake |
| VerfasserIn |
H. Kaplan, H. Bilgin, S. Yilmaz, H. Binici, A. Öztas |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 10, no. 3 ; Nr. 10, no. 3 (2010-03-16), S.499-507 |
| Datensatznummer |
250008006
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| Publikation (Nr.) |
 copernicus.org/nhess-10-499-2010.pdf |
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| Zusammenfassung |
| On 6 April 2009 an earthquake of magnitude 6.3 occurred in L'Aquila city,
Italy. In the city center and surrounding villages many masonry and
reinforced concrete (RC) buildings were heavily damaged or collapsed. After
the earthquake, the inspection carried out in the region provided relevant
results concerning the quality of the materials, method of construction and
the performance of the structures. The region was initially inhabited in the
13th century and has many historic structures. The main structural materials
are unreinforced masonry (URM) composed of rubble stone, brick, and hollow
clay tile. Masonry units suffered the worst damage. Wood flooring systems and
corrugated steel roofs are common in URM buildings. Moreover, unconfined
gable walls, excessive wall thicknesses without connection with each other
are among the most common deficiencies of poorly constructed masonry
structures. These walls caused an increase in earthquake loads. The quality
of the materials and the construction were not in accordance with the
standards. On the other hand, several modern, non-ductile concrete frame
buildings have collapsed. Poor concrete quality and poor reinforcement
detailing caused damage in reinforced concrete structures. Furthermore, many
structural deficiencies such as non-ductile detailing, strong beams-weak
columns and were commonly observed. In this paper, reasons why the buildings
were damaged in the 6 April 2009 earthquake in L'Aquila, Italy are given.
Some suggestions are made to prevent such disasters in the future. |
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