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Research Interests


Dr. Frangopol is a leading international figure in life-cycle performance, maintenance, reliability and multi-criteria optimization of structural systems and networks, whose work has had a significant impact on structural engineering evidenced by an h-index of 50 and more than 10000 citations (Google Scholar, 2014).

According to ASCE (2010) "Dan M. Frangopol is a preeminent authority in bridge safety and maintenance management, structural systems reliability and life-cycle engineering. His contributions have defined much of the practice around design specifications, management methods, and optimization approaches. From the maintenance of deteriorated structures and the development of system redundancy factors to assessing the performance of long span structures, Dr. Frangopol's research has not only saved time and money, but very likely also saved lives."

Dr. Frangopol's research focuses on life-cycle performance, safety, reliability, risk and multi-criteria optimization of structural systems; bridge inspection, maintenance, and management based on life-cycle cost under uncertainty; reliability and risk oriented structural health monitoring; risk-based assessment and decision making in structural engineering; stochastic analysis and maintenance optimization of networks of damaged structures under extreme events; infrastructure sustainability and resilience to disasters. He is also interested in application of methods of probability and statistics to marine engineering, stochastic mechanics, and earthquake engineering.


Selected Research Projects (PI, Co-PI, or Consultant)


  • ARCELORMITTAL / FHWA: Life-Cycle Cost Analysis of Different Steels for Highway Bridge Construction, PI and Sole Award Recipient, 2008-09 (see Chapter 7 of the Final Report and Journal of Bridge Engineering, ASCE, Vol. 17, No.1, 2012, 168-172, doi:10.1061/(ASCE)BE.1943-5592.0000219)
  • ARDEC, Army Armament Research, Development and Engineering Center (through Pennsylvania Innovation and Advanced Technology Association (PIATA) by its Agent, Pennsylvania Innovation Enterprise (PIE)): Integrated Framework for the Application of Probabilistic Optimization Technology (POTECH) to Weapons with Emphasis on Modeling and Simulation: Phase 1, PI (with P. Bocchini, Co-PI), 2012-13
  • ARDEC, Army Armament Research, Development and Engineering Center (through Pennsylvania Innovation and Advanced Technology Association (PIATA) by its Agent, Pennsylvania Innovation Enterprise (PIE)): Integrated Framework for the Application of Probabilistic Optimization Technology (POTECH) to Weapons with Emphasis on Modeling and Simulation: Phase 2, PI (with P. Bocchini, Co-PI), 2013-14
  • AFOSR: Novel SiCN Ceramics for Health Monitoring of High Temperature Systems, Co-PI, 2001-04
  • ASCE: Three Special Projects Awarded by Structural Engineering Institute of ASCE, PI and Sole Award Recipient, 1998-99, 2000-01, and 2002-03
  • ASCE/SEI: Life-Cycle Assessment and Design of Structural Systems: State-of-the-Art, Special Project Award by SEI/TAD, Project Manager with F. Biondini, 2014-15
  • ATC: Member of the Project Advisory Panel of the ATC-75 Project to Develop Industry Foundation Classes for Structural Components under contract to the Charles Pankow Foundation, Consultant, 2007-09
  • ATC: Chair of the Project Advisory Panel of the ATC-81 Project on Development of Industry Foundation Classess for Structural Concrete Members under contract to the ACI Foundation, Consultant, 2010
  • DoD: Reliability Algorithms for Corrosion Fatigue, Consultant, 2002
  • European Commission: SmartEN Marie Curie ITN Programme, EU Project, Smart Management for Sustainable Human Environment, Distinguished Scientist, 2009-13
  • FDOT: Long Term Monitoring on a Movable Bridge, Consultant, 2007-09
  • FHWA: Advancing Steel and Concrete Bridge Technology to Improve Infrastructure Performance, Co-PI; Task: System Reliability in Special Steel and Concrete Bridge Systems, PI, 2011-16
  • FHWA: Development and Demonstration of Systems-Based Monitoring Approaches for Improved Infrastructure Management under Uncertainty, PI with N. Catbas, 2007-12 (brief summary)
  • FHWA: Improved Corrosion Resistant Steel for Highway Bridge Construction, Senior Personnel, 2007-10
  • FHWA: Unified Quantitative Methodology for Integration of Nondestructive Bridge Evaluation and Bridge Management Systems, Co-PI, 1996-2000
  • FHWA: Load Prediction and Structural Response, Co-PI, 1988-92
  • FHWA / CDOT: Use of FRP Wraps for Bridge Retrofit and Strengthening, Innovative Bridge Research and Construction Program (IBRC), Co-PI, 2003-04
  • FHWA / CDOT : Utilizing FRP for Pedestrian Bridges, Innovative Bridge Research and Construction Program (IBRC), Co-PI, 2002-03
  • FHWA / CDOT : Evaluation of FRP Reinforced Bridge Decks, Innovative Bridge Research and Construction Program (IBRC), Co-PI, 2000-01
  • FHWA / CDOT: High Performance Concrete Prestressed Precast Girder Bridge, Co-PI, 1996-98
  • FHWA / CDOT: Bridge Management Systems, Co-PI, 1992-97
  • FHWA / GATECH: Acceptance Test Specifications and Guidelines for Fiber Reinforced Polymeric Bridge Decks, Consultant, 2000-01
  • FHWA / RUTGERS: Advance Understanding of Bridge Life-Cycle Performance for the FHWA LTBP Program, Consultant, 2009-12
  • FHWA / Pennoni: Bridge Health Index Project, LTBP Program, Expert, 2014-
  • HA (Highways Agency, UK): Bridge Reliability and Optimum Maintenance Strategies, Consultant, 1996-2002; Optimum Maintenance Strategies for Different Bridge Types, PI, 1998-2000; Preventative Maintenance Strategies for Bridge Groups: Analysis, PI, 2001-03
  • Henry Luce Foundation: Bridging Disciplines and Cultures: The Chinese Bridge Project at Lehigh University, Co-PI, 2009-13
  • MOCT/KICT/Hanyang University (Korea): Development of LCC Analysis System for Design and Rehabilitation of Steel Bridges, Technical Advisor, 2003-06
  • NASA: Advanced Materials Partnership - Technology for Aerospace and Defense, PI and Sole Award Recipient, 2010-12 (brief summary)
  • NATO: Life-Cycle Reliability Based System Management of Structures and Networks, PI, 1996-2000
  • NCHRP: Bridge System Safety and Redundancy, NCHRP Project 12-86, Consultant, 2010-13
  • NCHRP: Developing a National Database System for Maintenance Actions on Highway Bridges, NCHRP Project 14-15, Co-PI, 2005-07
  • NCHRP/TRB: Development of a Comprehensive Bridge Specification and Commentary (AASHTO LRFD Bridge Design Specifications, First Edition, 1994), NCHRP Project 12-33, Consultant, 1989-92
  • NRC/TRB: Member of the NRC Committee for Review of the Oregon Department of Transportation Study on Bridge Shear, Report, 2005
  • NRC/TRB: Member of the TRB Expert Task Group for LTBP Bridge Traffic and Truck Weights, 2012-15
  • NSF: Integrated Maintenance-Monitoring-Management Framework for Optimal Decision Making in Bridge Life-Cycle Performance, PI and Sole Award Recipient, 2005-11 (brief summary)
  • NSF: Life-Cycle Reliability Analysis and Optimization of Micro-Systems , Co-PI, 2003-07
  • NSF: A Problem-Focused Research Agenda for the Highway Transportation Infrastructure: A Holistic Systems Identification and Integration by Using Field Test-Sites , Co-PI, 2003-04
  • NSF: A Feasibility Study of Estimation of Structural Systems Reliability under Hurricane Hazard, Co-PI, 2003-04
  • NSF: Life-Cycle Cost Model Simulator for Decision Making in Bridge Network Management, PI and Sole Award Recipient, 2002-07
  • NSF: Optimum Life-Cycle Bridge Maintenance Planning Based on System Reliability, PI and Sole Award Recipient, 2000-04
  • NSF: Accelerated Testing and Reliable Prediction of Durability of Concrete, Co-PI, 1998-2002
  • NSF: System Reliability for Evaluation and Design of Highway Bridges, PI, 1996-2001
  • NSF: Life-Cycle Reliability-Based Evaluation and Design of Deteriorating Structures, PI and Sole Award Recipient, 1995-2000
  • NSF: Modeling of RC/SRC Systems with Flexibility-Based Models, Co-PI, 1995-99
  • NSF: Design of Bridge Inspection Programs for Structural Reliability, Co-PI, 1994-97
  • NSF: Development of Adaptive Hybrid Control Techniques for Building Structures, Co-PI, 1992-96
  • NSF: Multiobjective Reliability-Based Optimization of Structural Systems, PI and Sole Award Recipient, 1990-94
  • NSF: Multilevel Reliability-Based Optimization of Structural Systems, PI and Sole Award Recipient, 1987-90
  • NSF: Seismic Hazard Prediction Using Fuzzy Sets, PI and Sole Award Recipient, 1986-88
  • NSF: Safety Evaluation of Existing Steel Bridges, PI, 1986-89
  • ONR: Integrating SHM and Time Variant System Performance of Naval Ship Structures for Near Real-Time Decision Making Under Uncertainty: A Comprehensive Framework, PI and Sole Award Recipient, 2011-15 (brief summary)
  • ONR: Integrated Life-Cycle Framework for Maintenance, Monitoring, and Reliability of Naval Ship Structures, PI and Sole Award Recipient, 2008-12 (brief summary)
  • ONR/Progeny Systems: Development of Characterization of Failure Modes for Mechanical Components, Sole PI for Subcontract from Progeny Systems, 2014-15
  • Parsons Transportation Group, Denver Office, Consultant, 200-0
  • PennDOT: Simple Load Capacity Tests for Bridges, Co-PI, 1987-90
  • PITA: Life-Cycle Performance and Cost Analysis of Steel Bridges, PI and Sole Award Recipient, 2013-14
  • PITA: Reliability, Maturity and Readiness of Complex Sysytems, PI and Sole Award Recipient, 2014-15
  • PITA: Bridge Deicing using Geothermal Foundations, Co-PI (with M. Suleiman PI, and C. Naito and S. Neti, Co-PIs), 2013-14
  • PITA: Integrated Framework using Monitoring and Reliability for Improved infrastructure Management under Uncertainty: Phase 3 - Performance Prediction and Optimum Monitoring Planning, PI and Sole Award Recipient, 2009-11 (brief summary)
  • PITA: Development of a Corrosion Test Based on Electrochemical Surface Potential, Co-PI, 2008-10
  • PITA: Integrated Framework using Monitoring and Reliability for Improved Infrastructure Management under Uncertainty: Phase 2 - Implementation Study, PI and Sole Award Recipient, 2008-10
  • PITA: Integrated Framework using Monitoring and Reliability for Improved Infrastructure Management under Uncertainty: Phase 1 - Feasibility Study, PI and Sole Award Recipient, 2007-09
  • PITA: Structural Performance Assessment Based on Monitoring: Phase 2 - Implementation Study, PI and Sole Award Recipient, 2007-09
  • PITA: Structural Performance Assessment Based on Monitoring: Phase 1 - Feasibility Study, PI and Sole Award Recipient, 2007-08
  • RAE: Integration of Structural Health Monitoring with Risk-Based Performance; Fatigue and Fracture Behavior of Metallic Highway Bridges, Sole Award Recipient, 2008-09
  • RIJKSWATERSTAAT (Dutch Ministry of Infrastructure and the Environment): Development of Methods for Optimal Bridge and Asset Management based on Condition, Safety, and Cost, Consultant, 2004-06
  • SHRP 2/ TRB: Member of the Second Strategic Highway Research Program (SHRP 2) Renewal Technical Expert Task Group (T-ETG) on Bridges for Service Life beyond 100 years: Service Limit State Design (R19-B), 2009-13
  • TEPCO/Japan Institute of Systems Research: Civil Infrastructures, Consultant, 2000-01
  • U.S.-Spain Joint Committee for Scientific and Technological Cooperation: Service Life Prediction and Reliability Management of Deteriorating Concrete Bridges under Environmental Attack, PI, 2000-02
  • USACE /WES: Time-Dependent Reliability of Navigation Structures, PI, 1992-94


  • Research Associates Sponsored and Supervised


  • Dr. Giorgio Barone, University of Palermo, Palermo, Italy, 2012 - 2013
  • Dr. Sunyong Kim, Lehigh University, Bethlehem, Pennsylvania, USA, 2011
  • Dr. Hao Tian, Tongji University, Shanghai, China, 2010 - 2011
  • Dr. Paolo Bocchini,  University of Bologna, Bologna, Italy, 2009 - 2011
  • Dr. Andrè Orcesi, French Public Works Research Laboratory, Paris, France, 2008 - 2009
  • Dr. Ming Liu, MWH, Denver, Colorado, USA, 2007 - 2008
  • Dr. Alfred Strauss, University of Natural Resources and Applied  Sciences, Vienna, Austria, 2006 - 2007
  • Dr. Min Liu, University of Illinois at Urbana Champaign, Champaign, Illinois, USA, 2003 - 2005
  • Dr. Jung Sik Kong, University of Colorado, Boulder, Colorado, USA, 2001-  2003
  • Dr. Emhaidy Gharaibeh, University of Colorado, Boulder, Colorado, USA, 2000
  • Dr. Michael Enright, University of Colorado, Boulder, Colorado, USA, 1999
  • Prof. Mircea Cohn, University of Waterloo, Canada, 1989 and 1990
  • Dr. Rachid Nakib, University of Colorado, Boulder, Colorado, USA, 1988 - 1989
  • Dr. Gongkang Fu, Case Western Reserve University, Cleveland, Ohio, USA, 1987- 1988
  • Dr. Marek Klisinski, Institute of Fundamental Technological Research, Warsaw, Poland, 1987 - 1988


  • Visiting Scholars Hosted


  • Mr. Alberto Colombo, University of São Paulo, São Paulo, Brazil, 2014 - 2015
  • Prof. Yong Zeng, Chongqing Jiaotong University, Chongqing, China, 2014 - 2015
  • Mr. Yinan (David) Yang, The Hong Kong Polytechnic University, Hong Kong, 2014 - 2015
  • Mr. Ciaran Hanley, University College Cork, Cork, Ireland, 2014
  • Mr. Zhiyi Yin, Tongji University, Shanghai, China, 2013 - 2015
  • Mr. Huile Li, Beijing Jiatong University, Beijing, China, 2013 - 2014
  • Mr. Wei Pu, Tongji University, Shanghai, China, 2013 - 2014
  • Prof. Tao Wu, Chang'an University, Xi'an, China, 2013 - 2014
  • Prof. Jie Wu, Tongji University, Shanghai, China, 2013 - 2014
  • Ms. Valeria Di Silvestri, Politecnico di Milano, Milan, Italy, 2012
  • Dr. Andrea Titi, Politecnico di Milano, Milan, Italy, 2012
  • Dr. Banfu Yan, Hunan University, Changsha, Hunan, China, 2012 - 2013
  • Ms. Caroline Trimble, Research Intern, Bethlehem, PA, USA, 2012
  • Dr. Ling Liu, Wuhan University of Science and Technology, Wuhan, China, 2011 - 2012
  • Dr. Lucrezia Cascini, University of Naples “Federico II”, Naples, Italy, 2011
  • Dr. Alfred Strauss, University of Natural Resources and Applied Sciences, Vienna, Austria, 2011, 2012, 2013, 2014
  • Mr. Tim Zinke, Karlsruhe University, Karlsruhe, Germany, 2011
  • Prof. Jinzong Zhu, Tianjin University, Tianjin, China, 2009 - 2010
  • Dr. Paola Limonta, Politecnico di Milano, Milan, Italy, 2009
  • Prof. Mitsuyoshi Akiyama, Tohoku University, Sendai, Japan, 2008 - 2009
  • Dr. Ruan Xin, Tongji University, Shanghai, China, 2008 - 2009
  • Mr. Victor Voiry, French Institute of Advanced Mechanics, Clermont-Ferrand, France, 2009
  • Dr. Wenliang Lu, Beijing Jiaotong University, Beijing, China, 2007 - 2008
  • Mr. Nils Marquart, Technical University Braunschweig, Braunschweig, Germany, 2007
  • Prof. Fabio Biondini, Politecnico di Milano, Milan, Italy, 2001 - 2009 (annual short visits)
  • Mr. Hiroshi Hattori, Kansai University, Osaka, Japan, 2006 - 2007
  • Mr. Till Wachholz, Technical University Braunschweig, Braunschweig, Germany, 2006
  • Dr. Kei Kawamura, Yamaguchi University, Ube, Japan, 2006
  • Prof. Joan Casas, Technical University of Catalonia, Barcelona, Spain, 2005
  • Mr. Alberto Deco, University of Bologna, Bologna, Italy, 2005
  • Mr. Koichiro Nakatsu, Kansai University, Osaka, Japan, 2005 - 2006
  • Ms. Saeri Fukuhara, Kansai University, Osaka, Japan, 2005 - 2006
  • Mr. Takahiro Kameda, Kansai University, Osaka, Japan, 2004 - 2005
  • Ms. Masae Erami, Kansai University, Osaka, Japan, 2004 - 2005
  • Prof. Hitoshi Furuta, Kansai University, Osaka, Japan, 2003 - 2004
  • Mr. Christian Koenig, Technical University Braunschweig, Braunschweig, Germany, 2004 - 2005
  • Mr. Jacques Peugeot, French Institute of Advanced Mechanics, Clermont-Ferrand, France, 2004 - 2005
  • Prof. Christian Bucher, Bauhaus-University Weimar, Weimar, Germany, 2004
  • Mr. Sebastian Wolff, Bauhaus-University Weimar, Weimar, Germany, 2003 - 2004
  • Dr. Kei Kawamura, Yamaguchi University, Ube, Japan, 2002 - 2004
  • Mr. Luca Sgambi, University of Rome "La Sapienza", Rome, Italy, 2003
  • Mr. Luciano Catallo, University of Rome "La Sapienza", Rome, Italy, 2003
  • Dr. Xiaoming Wang, CSIRO, Melbourne, Australia, 2002
  • Ms. Francesca Bortot, University of Trento, Trento, Italy, 2002
  • Mr. David Guillot, French Institute of Advanced Mechanics, Clermont-Ferrand, France, 2002
  • Mr. Luis Neves, University of Minho, Guimaraes, Portugal, 2001 - 2004
  • Dr. Han Kim, Seoul National University, Seoul, Korea, 2001 - 2002
  • Prof. Hideaki Nakamura, Yamaguchi University, Ube, Japan, 2001
  • Mr. Sebastien Recek, French Institute of Advanced Mechanics, Clermont-Ferrand, France, 2001
  • Prof. Mark Stewart, University of Newcastle, Newcastle, Australia, 2000
  • Prof. Matsuho Shigeyuki, Anan National College of Technology, Tokushima, Japan, 1999
  • Prof. Tsuyoshi Takada, University of Tokyo, Tokyo, Japan, 1999
  • Mr. Christian Frier, University of Aalborg, Aalborg, Denmark, 1997
  • Prof. Joergen Amdahl, Norwegian University of Science and Technology, Trondheim, Norway, 1996 -1997
  • Dr. Matsuho Shigeyuki, Tottori University, Tottori City, Japan, 1996 – 1997
  • Prof. Marcello Ciampoli, University of Rome "La Sapienza," Rome, Italy, 1999
  • Mr. Fulvio Tonon, University of  Padova, Padova, Italy, 1996
  • Mr. Cesar Minguillon, Technical University of Catalonia, Barcelona, Spain, 1994
  • Dr. Satoshi Katsuki, National Defense Academy, Yokosuka, Japan, 1991 - 1993
  • Dr. Ebrahim Sanaei, Iran University of Science and Technology, Tehran, Iran, 1991 - 1992
  • Dr. Petr Hajek, Czech Technical University, Prague, Czech Republic, 1989
  • Dr. Mark Marley, University of Trondheim, Trondheim, Norway, 1989
  • Mr. Kenji Ikejima, Osaka Gas Corporation, Osaka, Japan, 1986 - 1987