Relation between dynamic amplification, structural height and damage in buildings affected by the recent Italian earthquakes
To exploit the purely geometric link between the elastic period of vibration T and the height H (or number of stories) of a building, T was varied from 0 to 0.5 s coinciding with a height between 0 and 12 m (at most the four stories typical of Italian buildings) in order to estimate the spectral acc...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2020-01-01
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| Series: | Geomatics, Natural Hazards & Risk |
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| Online Access: | http://dx.doi.org/10.1080/19475705.2020.1778107 |
| _version_ | 1818944280397348864 |
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| author | Marco Gatti |
| author_facet | Marco Gatti |
| author_sort | Marco Gatti |
| collection | DOAJ |
| description | To exploit the purely geometric link between the elastic period of vibration T and the height H (or number of stories) of a building, T was varied from 0 to 0.5 s coinciding with a height between 0 and 12 m (at most the four stories typical of Italian buildings) in order to estimate the spectral accelerations corresponding to acceleration measurements recorded during the earthquakes of L’Aquila, Emilia and central Italy. These estimates were used to calculate the maximum dynamic amplification factors and corresponding heights, called critical heights, that can generate either resonance or appreciable dynamic amplification values. The results showed dynamic amplification values close to 3 for reinforced concrete buildings and 2.5 for masonry buildings independently of the characteristics of the earthquakes. There was a significant coincidence between the structural height of the buildings with greatest recorded damage and the critical height. The basis of the study lies in simple numerical steps carried out with easily obtainable data: for this reason, it can be easily applied to determine the vulnerability of a building according to its structural height. |
| first_indexed | 2024-12-20T07:40:43Z |
| format | Article |
| id | doaj.art-471c5ed6a3f5456dac05f5a619235105 |
| institution | Directory Open Access Journal |
| issn | 1947-5705 1947-5713 |
| language | English |
| last_indexed | 2024-12-20T07:40:43Z |
| publishDate | 2020-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Geomatics, Natural Hazards & Risk |
| spelling | doaj.art-471c5ed6a3f5456dac05f5a6192351052022-12-21T19:48:08ZengTaylor & Francis GroupGeomatics, Natural Hazards & Risk1947-57051947-57132020-01-011111154117410.1080/19475705.2020.17781071778107Relation between dynamic amplification, structural height and damage in buildings affected by the recent Italian earthquakesMarco Gatti0Department of Engineering, University of FerraraTo exploit the purely geometric link between the elastic period of vibration T and the height H (or number of stories) of a building, T was varied from 0 to 0.5 s coinciding with a height between 0 and 12 m (at most the four stories typical of Italian buildings) in order to estimate the spectral accelerations corresponding to acceleration measurements recorded during the earthquakes of L’Aquila, Emilia and central Italy. These estimates were used to calculate the maximum dynamic amplification factors and corresponding heights, called critical heights, that can generate either resonance or appreciable dynamic amplification values. The results showed dynamic amplification values close to 3 for reinforced concrete buildings and 2.5 for masonry buildings independently of the characteristics of the earthquakes. There was a significant coincidence between the structural height of the buildings with greatest recorded damage and the critical height. The basis of the study lies in simple numerical steps carried out with easily obtainable data: for this reason, it can be easily applied to determine the vulnerability of a building according to its structural height.http://dx.doi.org/10.1080/19475705.2020.1778107dynamic amplification factordafheightdamageearthquakeseismic risk |
| spellingShingle | Marco Gatti Relation between dynamic amplification, structural height and damage in buildings affected by the recent Italian earthquakes Geomatics, Natural Hazards & Risk dynamic amplification factor daf height damage earthquake seismic risk |
| title | Relation between dynamic amplification, structural height and damage in buildings affected by the recent Italian earthquakes |
| title_full | Relation between dynamic amplification, structural height and damage in buildings affected by the recent Italian earthquakes |
| title_fullStr | Relation between dynamic amplification, structural height and damage in buildings affected by the recent Italian earthquakes |
| title_full_unstemmed | Relation between dynamic amplification, structural height and damage in buildings affected by the recent Italian earthquakes |
| title_short | Relation between dynamic amplification, structural height and damage in buildings affected by the recent Italian earthquakes |
| title_sort | relation between dynamic amplification structural height and damage in buildings affected by the recent italian earthquakes |
| topic | dynamic amplification factor daf height damage earthquake seismic risk |
| url | http://dx.doi.org/10.1080/19475705.2020.1778107 |
| work_keys_str_mv | AT marcogatti relationbetweendynamicamplificationstructuralheightanddamageinbuildingsaffectedbytherecentitalianearthquakes |