Reliability of Bridges under Tsunami Hazards: Emphasis on the 2011 Tohoku-Oki Earthquake

The probabilistic estimation of tsunami impact on bridges and the evaluation of potential tsunami risk are important topics, but they are still in very early stages of development. First, this paper presents the damage of bridges during the great Tohoku-oki earthquake and giant tsunami of 11 March 2011 based on the field damage investigation. The damage conditions and the possible failure mechanisms of bridges due to tsunami are particularly discussed. Second, tsunami fragility curves are presented. Empirical tsunami fragility curves based on the utilization of damage data associated with past tsunami disasters have been developed. In this paper, the tsunami fragility curves are established based on simulations. Bridge failure probability can be estimated using the tsunami hazard and fragility curves. Finally, an illustrative example of the reliability estimation of a bridge exposed to tsunami hazard is presented.

[1]  Kenji Kosa.  DAMAGE ANALYSIS OF BRIDGES AFFECTED BY TSUNAMI DUE TO GREAT EAST JAPAN EARTHQUAKE , 2012 .

[2]  Dan M. Frangopol,et al.  Life-cycle performance, management, and optimisation of structural systems under uncertainty: accomplishments and challenges 1 , 2011, Structures and Infrastructure Systems.

[3]  Performance of Structures Affected by the 2004 Sumatra Tsunami in Thailand and Indonesia , 2006 .

[4]  Fumihiko Imamura,et al.  Developing tsunami fragility curves based on the satellite remote sensing and the numerical modeling of the 2004 Indian Ocean tsunami in Thailand , 2011 .

[5]  Dan M. Frangopol,et al.  Integration of the effects of airborne chlorides into reliability-based durability design of reinforced concrete structures in a marine environment , 2012, Structures and Infrastructure Systems.

[6]  Gaku Shoji,et al.  Evaluation of the Structural Fragility of a Bridge Structure Subjected to a Tsunami Wave Load , 2007 .

[7]  H Y Kim,et al.  STATISTICAL ANALYSIS OF FRAGILITY CURVES , 2000 .

[8]  S. Koshimura,et al.  Tsunami Fragility — A New Measure to Identify Tsunami Damage — , 2009 .

[9]  Dan M. Frangopol,et al.  Risk-Based Approach for Optimum Maintenance of Bridges under Traffic and Earthquake Loads , 2013 .

[10]  Kazuhiko Kawashima,et al.  DAMAGE OF BRIDGES DUE TO THE 2011 GREAT EAST JAPAN EARTHQUAKE , 2012 .

[11]  Mitsuyoshi Akiyama,et al.  Reliability-based capacity design for reinforced concrete bridge structures , 2010 .

[12]  B. G. Rabbat,et al.  Friction Coefficient of Steel on Concrete or Grout , 1985 .

[13]  Dan M. Frangopol,et al.  Life‐cycle reliability of RC bridge piers under seismic and airborne chloride hazards , 2011 .

[14]  Dan M. Frangopol,et al.  Risk assessment of highway bridges under multiple hazards , 2011 .

[15]  Tsutomu Sakakiyama,et al.  Logic-tree Approach for Probabilistic Tsunami Hazard Analysis and its Applications to the Japanese Coasts , 2004 .

[16]  Dan M. Frangopol,et al.  Restoration of Bridge Networks after an Earthquake: Multicriteria Intervention Optimization , 2012 .

[17]  Masanobu Shinozuka,et al.  Nonlinear Static Procedure for Fragility Curve Development , 2000 .

[18]  Dan M. Frangopol,et al.  Lifetime Seismic Reliability Analysis of Corroded Reinforced Concrete Bridge Piers , 2011 .

[19]  Dan M. Frangopol,et al.  Life-Cycle Risk Assessment of Spatially Distributed Aging Bridges under Seismic and Traffic Hazards , 2013 .

[20]  Dan M. Frangopol,et al.  Probabilistic Optimum Inspection/Repair Planning to Extend Lifetime of Deteriorating Structures , 2011 .

[21]  Jamie E. Padgett,et al.  Aging Considerations in the Development of Time-Dependent Seismic Fragility Curves , 2010 .

[22]  K. Kawashima,et al.  Seismic design and retrofit of bridges , 2000 .

[23]  Dan M. Frangopol,et al.  Optimal Resilience- and Cost-Based Postdisaster Intervention Prioritization for Bridges along a Highway Segment , 2012 .

[24]  Dan M. Frangopol,et al.  Bridge network performance, maintenance and optimisation under uncertainty: accomplishments and challenges , 2012, Structures and Infrastructure Systems.