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Multidisciplinary approach for the seismic vulnerability evaluation of lifelines and structural components of industrial plants

G. Lanzano, F. Santucci De Magistri, G. Fabbrocino, E. Salzano

Proceedings of the 15th World Conference on Earthquake Engineering, Lisbon, Portugal, 2012

2012

Industrial plants and lifelines play a crucial and essential role in the human life and in the economic development of a country: for this reason, their structural safety under extreme events, like strong earthquakes, must be ensured, especially when a large amount of toxic and flammable material were stocked and transported in these structures. Therefore, a multidisciplinary study was carried out to evaluate the seismic vulnerability of a set of industrial structure and lifeline, like pipelines, underground tanks and basins. In this paper, a specific approach was developed for the study of seismic vulnerability of pipelines. To this end, a large amount of damage data to pipelines was collected from post-earthquake reports, in order to obtain a reference database. All the data were classified accounting different topics, including material, transported fluid, geotechnical aspects, diameter, joints, seismic parameters. These data were analyzed and checked using simplified expressions and were used to build the fragility formulations for different classes of pipelines.

Anahtar Kelimeler: pipelines; seismic performance; permanent displacement; industrial components

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