دورية أكاديمية
In field data to correctly characterize the seismic response of buildings and bridges
| العنوان: | In field data to correctly characterize the seismic response of buildings and bridges |
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| المؤلفون: | Benedettini, Francesco, De Sortis, Adriano, Milana, Giuliano |
| المساهمون: | #PLACEHOLDER_PARENT_METADATA_VALUE#, Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia |
| سنة النشر: | 2017 |
| المجموعة: | Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
| مصطلحات موضوعية: | Soft storey, Damage detection, Nonlinear dynamic analysis, Structural identification, Site amplification, Seismic collapse, 04.06. Seismology |
| الوصف: | The use of in-field acquired data to characterize the seismic response of building and bridges immediately after an earthquake, is discussed in this paper; in particular, we discuss how dynamical tests could help the assessment phase and could indicate if the structure is in condition to continue its regular use. In this perspective, two different case-studies will be discussed: the first is concerned with the interpretation of a particular behavior exhibited by a group of four buildings characterized, despite of the similarities among them, by strongly different seismic response (two of them collapsed and the other two survived with a medium damage level) and the second one is concerned with a campaign of dynamical tests finalized to a possible damage detection on a r.c. bridge. Concerning the first case study it is worth noticing how, during the 6 April earthquake in L’Aquila, two couples of similar (nearly twin) buildings belonging to the same urban intervention, exhibited a dramatically different response. In the two couples, the first couple constituted by two four-story buildings and the second couple by two three-stories buildings, one element collapsed suffering the well-known soft story mechanism, while the other one survived with a damage pattern not so strong, as expected considering the similarity with the collapsed one. The in situ measurements conducted in the framework of microzoning activities provided the opportunity of gathering useful information about the dynamical properties of the soil, thus evaluating possible site amplification effects. A key role was played in this case by a local amplification of the seismic intensity, due to the geology of the site. On the same time, dynamical tests on the survived buildings enlightened their dynamic characteristics and permitted the updating of the FE models used in the structural analysis. Linear and nonlinear models of the buildings have been developed, aiming to explain the different behavior. Even the use of simple linear models taking into ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | Bulletin of Earthquake Engineering; /15 (2017); http://hdl.handle.net/2122/11195Test |
| DOI: | 10.1007/s10518-016-9917-4 |
| الإتاحة: | https://doi.org/10.1007/s10518-016-9917-4Test http://hdl.handle.net/2122/11195Test |
| حقوق: | restricted |
| رقم الانضمام: | edsbas.DB7A5A36 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1007/s10518-016-9917-4 |
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