Articles | Volume 18, issue 8
Nat. Hazards Earth Syst. Sci., 18, 2111–2125, 2018
https://doi.org/10.5194/nhess-18-2111-2018
Nat. Hazards Earth Syst. Sci., 18, 2111–2125, 2018
https://doi.org/10.5194/nhess-18-2111-2018

Research article 08 Aug 2018

Research article | 08 Aug 2018

Development of fragility curves for road bridges exposed to volcanic lahars

Joaquín Dagá et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (further review by editor and referees) (26 Feb 2018) by Thom Bogaard
AR by Joaquin Daga on behalf of the Authors (26 Mar 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (04 Apr 2018) by Thom Bogaard
RR by Anonymous Referee #2 (23 Apr 2018)
RR by Anonymous Referee #1 (03 May 2018)
ED: Reconsider after major revisions (further review by editor and referees) (08 May 2018) by Thom Bogaard
AR by Svenja Lange on behalf of the Authors (22 Jun 2018)  Author's response
ED: Referee Nomination & Report Request started (22 Jun 2018) by Thom Bogaard
RR by Anonymous Referee #2 (02 Jul 2018)
ED: Publish subject to technical corrections (10 Jul 2018) by Thom Bogaard
ED: Publish subject to technical corrections (11 Jul 2018) by Thom Bogaard
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Short summary
One of the main volcanic processes affecting road bridges are lahars, which are flows of water and volcanic material running down the slopes of a volcano. In this paper, bridge failure models due to lahars are proposed and, based on these, fragility curves are developed. Fragility curves are parameterized by maximum likelihood estimation, assuming a cumulative log-normal distribution. Bridge failure models are empirically evaluated using data of 15 bridges that were affected by lahars.
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