Seismic vulnerability of air traffic control towers

Mohammadreza Vafaei () and Sophia C. Alih ()
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Mohammadreza Vafaei: Universiti Teknologi Malaysia
Sophia C. Alih: Universiti Teknologi Malaysia

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2018, vol. 90, issue 2, No 13, 803-822

Abstract: Abstract Airports are one of the critical infrastructures that play an essential role in managing natural disasters through receiving or sending aid and supplies. Air traffic control (ATC) towers are an inseparable part of each airport as the performance of airports depends on the functionality of their ATC towers. Many ATC towers have been designed and constructed based on older versions of modern seismic codes in which seismic design has followed a force-based design approach. This study addresses the seismic vulnerability of three in-service ATC towers which have been designed and constructed according to a force-based design concept. The height of the towers ranges from 24 to 52 m. Fragility curves have been used for the seismic vulnerability study of these towers. For the derivation of seismic fragility curves, 45 earthquake records were selected and classified into low, medium and high classes based on their ratio of peak ground acceleration (PGA) to peak ground velocity (PGV). It was observed that records with a low PGA/PGV ratio imposed the highest level of damage to the towers. However, when towers were subjected to the records with a high PGA/PGV ratio, the damage intensity was not significant. Results indicated that the intensity of seismic-induced damage to the tallest tower was significantly more than that of the shortest tower. It was concluded that only the shortest tower could satisfy the expected seismic performance objectives.

Keywords: ATC tower; Fragility curves; Incremental dynamic analysis; Concrete wall; Seismic damage (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1007/s11069-017-3072-3

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