Performance of two real-life California bridges under regional natural hazards

Name: Performance of two real-life California bridges under regional natural hazards
Author: Yılmaz, Taner, Banerjee, S., Johnson, P. A.

İsim	Performance of two real-life California bridges under regional natural hazards
Yazar	Yılmaz, Taner, Banerjee, S., Johnson, P. A.
Basım Tarihi:	2016-03
Konu	Multihazard, Earthquake, Flood, Fragility curve, Fragility surface, Risk curve
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1943-5592
Kayıt Numarası	2904ad7b-f001-4610-9163-858efcaffaa3
Lokasyon	Civil Engineering
Tarih	2016-03
Notlar	NSF
Örnek Metin	The performance of two real-life California bridges is assessed under a possible regional multihazard condition involving floods and earthquakes. For flood events with varied frequency, expected scour depths at bridge piers are calculated and incorporated in finite-element analyses (FEAs) of the bridges under earthquakes that represent regional seismic hazards. Based on FEA results, fragility curves of bridges are developed at component and system levels. Fragility surfaces are generated to acquire comprehensive knowledge on bridge failure probability for the combined effect of earthquake and flood events of varying frequency. Quantified bridge vulnerability is applied to a risk evaluation framework that combines hazard probability with bridge failure consequences. Obtained results depict that the occurrence of flood events can increase the seismic vulnerability and risk of bridges, although the amount of increase depends on bridge attributes. Bigger (large-diameter) foundations tend to reduce the impact of flood hazard on bridge seismic performance. Moreover, the multihazard response of the bridges indicates that the seismic design philosophy used for bridges can play a role in attaining the seismic safety of bridges with flood-induced scour at the foundations.
DOI	10.1061/(ASCE)BE.1943-5592.0000827
Cilt	21

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Performance of two real-life California bridges under regional natural hazards

Yazar Yılmaz, Taner, Banerjee, S., Johnson, P. A.

Basım Tarihi 2016-03

Konu Multihazard, Earthquake, Flood, Fragility curve, Fragility surface, Risk curve

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1943-5592

Kayıt Numarası 2904ad7b-f001-4610-9163-858efcaffaa3

Lokasyon Civil Engineering

Tarih 2016-03

Notlar NSF

Örnek Metin The performance of two real-life California bridges is assessed under a possible regional multihazard condition involving floods and earthquakes. For flood events with varied frequency, expected scour depths at bridge piers are calculated and incorporated in finite-element analyses (FEAs) of the bridges under earthquakes that represent regional seismic hazards. Based on FEA results, fragility curves of bridges are developed at component and system levels. Fragility surfaces are generated to acquire comprehensive knowledge on bridge failure probability for the combined effect of earthquake and flood events of varying frequency. Quantified bridge vulnerability is applied to a risk evaluation framework that combines hazard probability with bridge failure consequences. Obtained results depict that the occurrence of flood events can increase the seismic vulnerability and risk of bridges, although the amount of increase depends on bridge attributes. Bigger (large-diameter) foundations tend to reduce the impact of flood hazard on bridge seismic performance. Moreover, the multihazard response of the bridges indicates that the seismic design philosophy used for bridges can play a role in attaining the seismic safety of bridges with flood-induced scour at the foundations.

DOI 10.1061/(ASCE)BE.1943-5592.0000827

Cilt 21