Sustainability-based pre-earthquake probabilistic retrofit optimization of highway bridges considering risk attitudes

You Dong, D. M. Frangopol, S. Sabatino

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)


Planning retrofit actions on existing highway bridges under tight budget constraints is a challenging process. This can be achieved through a holistic management framework that accounts for uncertainties and attitudes of the decision maker. In this paper, a probabilistic methodology to establish optimum preearthquake retrofit plans for bridges considering risk attitudes is developed. A multi-criteria optimization problem is formulated to obtain the optimum retrofit planning of highway bridges. The uncertainties associated with seismic hazard and structural vulnerability are incorporated within the proposed approach. The time effects on structural seismic performance are included in the proposed framework. The optimum Pareto set of final retrofit planning is obtained using Genetic Algorithms. The capabilities of the proposed methodology are demonstrated by applying it to an existing bridge.
Original languageEnglish
Title of host publicationBridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014
PublisherTaylor and Francis - Balkema
Number of pages6
ISBN (Print)9781138001039
Publication statusPublished - 1 Jan 2014
Externally publishedYes
Event7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014 - Shanghai, China
Duration: 7 Jul 201411 Jul 2014


Conference7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

Cite this