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Title:

Resilience Assessment of Bridges Subjected to Hurricane

Accession Number:

01663103

Record Type:

Component

Abstract:

Past hurricane experiences revealed that coastal bridges are vulnerable to storm surges and wave loads. Bridges form vital links in the transportation network, especially during and after a hurricane event for evacuations and emergency responses. Until recently, only a limited amount of research has been conducted in an attempt to develop a probabilistic framework to quantify the probability of failure of bridges subjected to hurricanes. This paper reports on the development and application of a probabilistic framework that quantifies the demand, capacity, conditional probability of failure and resilience for the bridges susceptible to deck unseating. The uncertainties in the demand and capacity of the bridges were modeled by assigning distribution functions to various parameters of geometrical and structural properties and wave characteristics. The results of the selected demand model were compared with the available experimental data in the literature and a bias removal function was derived to address the differences. Probabilistic modeling of demand and capacity allows for the derivation of a fragility and resilience surfaces that presents the probability of failure as a function of relative surge elevation and wave height. The developed model was applied to a case study for resilience assessment of bridges in Brick Township, New Jersey. The maps of resilience for all bridges located in the area of Brick Township, NJ were developed for hurricane categories one through four. The developed method can be applied to enhance the pre-hurricane and post-hurricane decision making policies and event mitigation strategies of transportation system and entire communities.

Supplemental Notes:

This paper was sponsored by TRB committee AFF10 Standing Committee on General Structures.

Report/Paper Numbers:

18-06669

Language:

English

Authors:

Iranmanesh, Amir H
Clark, Uriel
Rabbani, Fahad
Lundberg, Dot
Motamedi, Mohammad H
Nazari, Rouzbeh

Pagination:

22p

Publication Date:

2018

Conference:

Transportation Research Board 97th Annual Meeting

Location: Washington DC, United States
Date: 2018-1-7 to 2018-1-11
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Maps; References; Tables

Geographic Terms:

Brick Township (New Jersey)

Subject Areas:

Bridges and other structures; Highways; Planning and Forecasting; Security and Emergencies

Source Data:

Transportation Research Board Annual Meeting 2018 Paper #18-06669

Files:

TRIS, TRB, ATRI

Created Date:

Jan 8 2018 11:43AM