FACULTY OF ENGINEERINGDEPARTMENT OF ENGINEERING SCIENCES


Assoc. Prof. Dr. Ferhat Akgül

 

 FAkgul

 

Affiliations with Professional Societies:

 

IALCEE, International Association for Life-Cycle Civil Engineering

IABMAS, Member, International Association for Bridge Maintenance and Safety

IABSE, International Association of Bridge and Structural Engineering (Past Member)


Research Interests:

 

Theoretical:

 

Structural Reliability

Probabilistic Methods

Markov Processes and Dynamic Programming

Life Cycle Analysis

Computational Software Development

 

Application:

 

Bridge Engineering

Bridge Reliability

Bridge Management

Damage Evaluation of Structures

Structural Inspection and Maintenance

Load and Condition Rating for Bridges

Field Testing of Infrastructure Facilities

Nondestructive Methods

Experimental Techniques

Web-Based Bridge Management System Development

 

 

Refereed International Journal Publications:


  1. Akgul, F., “Bridge Management in Turkey: A BMS Design with Customized Functionalities”, Structure and Infrastructure Engineering, 2015 (DOI:10.1080/15732479.2015.1035284)
  2. Akgul, F., “Development of a Bridge Management System incorporating a newly developed model for Element Condition Evaluation based on Damage Effects”, Structure and Infrastructure Engineering, Elsevier, Taylor & Francis, 9(12), 1206-1224, Dec. 2013.
  3. Akgul, F., Masoumi, F., “A Damage-based Maintenance and Repair Optimization Method Using Linear Programming for Deteriorating Systems” IACSIT International Journal of Engineering and Technology, Vol. 4, No. 5, 668-671, Oct. 2012.
  4. Akgul, F., Frangopol, D.M., Lifetime performance prediction of existing reinforced concrete bridges. II: Application. Journal of Infrastructure Systems, American Society of Civil Engineers, 11(2), 129-141, Jun. 2005.
  5. Akgul, F., Frangopol, D.M., “Lifetime performance prediction of existing reinforced concrete bridges. I: Theory” Journal of Infrastructure Systems, American Society of Civil Engineers, 11(2), 122-128, Jun. 2005.
  6. Akgul, F., Frangopol, D.M., “Lifetime performance analysis of existing prestressed concrete bridge superstructures” Journal of Structural Engineering, American Society of Civil Engineers, 130(12), 1889-1903, Dec. 2004.
  7. Akgul, F., Frangopol, D.M., “Lifetime performance analysis of existing steel girder bridge superstructures” Journal of Structural Engineering, American Society of Civil Engineers, 130(12), 1875-1888, Dec. 2004.
  8. Akgul, F., Frangopol, D.M., “Time-dependent interaction between load rating and reliability for deteriorating bridges” Engineering Structures, Elsevier, 26(12), 1751-1756, Oct. 2004.
  9. Akgul, F., Frangopol, D.M., “Bridge rating and reliability correlation: a comprehensive study for different bridge types” Journal of Structural Engineering, American Society of Civil Engineers, 130(7), 1063-1074, Jul. 2004.
  10. Akgul, F., Frangopol, D.M., “Computational platform for predicting lifetime system reliability profiles for different structure types in a network” Journal of Computing in Civil Engineering, American Society of Civil Engineers, 18(2), 92-104, Apr. 2004.
  11. Akgul, F., Frangopol, D.M., “Rating and reliability of existing bridges in a network” Journal of Bridge Engineering, American Society of Civil Engineers, 8(6), , 383-392, Nov./Dec. 2003.
  12. Akgul, F., Gerstle, W.H., and Johnson, W.S., “Structural design of a lunar radio telescope using interactive CAD”, Journal of Aerospace Engineering, American Society of Civil Engineers, 5(1), 1992, Article Rated "Award Quality" by ASCE.

 

Refereed National Journal Publications:


  1. Eraslan, A.N., Akgul, F., Yielding and Elastoplastic Deformation of Annular Disks of a Parabolic Section Subject to External Compression. Turkish Journal of Engineering and Environmental Sciences, TÜBİTAK, 29(1), 51-60, 2005.

 

Refereed International Conference Publications


  1. Akgul, F., Masoumi, F. “Condition Assessment Based on Visual Inspection and Nondestructive Evaluation of Highway Bridges in Turkey”, NDE/NDT for Structural Materials Technology for Highways and Bridges, ASNT, The American Society for Nondestructive Testing, Grand Hyatt Washington, Washington, D.C., 25-27 August 2014.
  2. Akgul, F., Masoumi, F. “Inspection, testing and evaluation of reinforced concrete bridges in Turkey”, SMAR2013, Second Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures, , Istanbul Technical University (ITU), Istanbul, Turkey, 9-11 September 2013.
  3. Akgul, F., Masoumi, F. “A pilot study for inspection, damage assessment and management of bridges in Turkey”, SMAR2013, Second Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures, Istanbul Technical University (ITU), Istanbul, Turkey, 9-11 September 2013.
  4. Akgul, F., Masoumi, F. “Evaluation of Condition States of Bridge Elements Based on the Intensity of Different Damage Types”, 10th International Congress on Advances in Civil Engineering, Middle East Technical University, Ankara, Turkey, p. 293, 17-19 October 2012.
  5. Akgul, F., Masoumi, F. “Optimization of Maintenance, Repair and Rehabilitation Actions in a Novel Bridge Management System”, 10th International Congress on Advances in Civil Engineering, Middle East Technical University, Ankara, Turkey, p. 261, 17-19 October 2012.
  6. Akgul, F. “A BMS development project with an integrated inspection program”, IABMAS’12, The Sixth International Conference on Bridge Maintenance, Safety, Management, Resilience and Sustainability, , Stresa, Lake Maggiore, Italy, Taylor and Francis , p.541, July 8-12, 2012.
  7. Akgul, F. “Development of a Bridge Inspection and Management Project”, 34th IABSE Symposium, Large Structures and Infrastructures for Environmentally Constrained and Urbanized Areas, Venice, Italy, pp. 648, September 22-24, 2010.
  8. Akgul, F. “Probabilistic performance prediction modeling for bridges considering maintenance effects within a combined computation, visualization and programming environment”, IABMAS’10, The Fifth International Conference on Bridge Maintenance, Safety and Management, Philadelphia, Pennsylvania p.279, July 11-15, 2010.
  9. 11. Akgul, F. “Development strategies for a web-based bridge maintenance management system”, Proceedings of the IABSE (International Association for Bridge and Structural Engineering) Symposium, Improving Infrastructure Worldwide, Weimar, Germany, IABSE Report. Vol. 93. pp 434-435, September 19-21, 2007.
  10. Akgul, F. “Criteria for a bridge management system based on inspection, monitoring and maintenance practices”, Proceedings of the LCC5, 5th International Workshop on Life-Cycle Cost Analysis and Design of Civil Infrastructure Systems, Seoul, Korea, p.79, October 16-18, 2006.
  11. Akgul, F., and Frangopol, D.M. “Probabilistic bridge performance assessment, maintenance, monitoring and management”, Proceedings of ICOSSAR’05 (9th International Conference on Structural Safety and Reliability), Rome, Italy, June 19-22, 2005.
  12. Akgul, F., and Frangopol, D.M. “Reliability deterioration prediction of an existing bridge using a probability-based analysis tool”, Bridge Maintenance, Safety, Management and Cost, Ed. By Watanabe, Frangopol & Utsunomiya, Taylor & Francis Group, London, Proceedings of IABMAS’04 (International Association for Bridge Maintenance and Safety), Kyoto, Japan, October 18-22, 2004.
  13. Akgul, F., and Frangopol, D.M. “State of the art versus state of the practice in bridge evaluation”, Proceedings of the 11th IFIP (International Federation for Information Processing) Working Group 7.5, Working Conference on Reliability and Optimization of Structural Systems, Banff, Calgary, Canada, November, 2003.
  14. Akgul, F., and Frangopol, D.M. “Forecasting the Lifetime Safety and Serviceability for the Management of a Network of Highway Bridges in Colorado”, Proceedings of the 9th International Bridge Management Conference IBMC03, Orlando, Florida, p.323, April 28-30, 2003.
  15. Akgul, F., and Frangopol, D.M. “Probabilistic analysis of bridge networks based on system reliability and Monte Carlo simulation”, Proceedings of the 9th International Conference on Applications of Statistics and Probability in Civil Engineering ICASP9, San Francisco, California, pp. 1634-1637, July 6-9, 2003.
  16. Akgul, F., and Frangopol, D.M. “An integrated computational platform for system reliability-based analysis of mixed-type highway bridge networks”, Proceedings of the 2nd International Structural and Construction Conference ISEC-02, p.1717, Rome, Italy, 23-26 September 2003.
  17. Kong, J.S., Akgul, F., Frangopol, D.M., and Xi, Y. “Probabilistic Models for Predicting the Failure Time of Deteriorating Systems”, Proceedings of the First M.I.T. Conference in Computational Fluid and Solid Mechanics, Massachusetts Institute of Technology, Cambridge, Massachusetts, p. 80, (Keynote Lecture), June 12-14, 2001.
  18. Kong, J.S., Akgul, F., Frangopol, D.M., Gharaibeh, E.S. “Maintaining Reliability of Steel Bridges Based on Minimum Expected Cost”, Proceedings of the IFIP WG 7.5 on Reliability and Optimization of Structural Systems, Ann Arbor, Michigan, p.1, September 25-27, 2000.
  19. Akgul, F., Gerstle, W., and Johnson, S., "Computer Aided Analysis of a Lunar Radio Telescope Antenna", Proceedings of SPACE 90 Conference: Engineering, Construction and Operations in Space, Albuquerque, New Mexico, Sponsored by the Aerospace Division of the American Society of Civil Engineers April, 1990, pp. 697-706.

 

Refereed National Conference Publications


  1. Akgul, F., Bayrak, H. “Development of a Computational Tool for Performance Prediction Models for Bridges”, 9th International Congress on Advances in Civil Engineering, , Karadeniz Technical University, Trabzon, Turkey, 27-30 September 2010.
  2. Akgul, F. “Yapıların yaşamboyu yıpranma eğrilerinin simülasyon ile modellenmesi”, Proceedings of the XVI. UMK-Ulusal Mekanik Kongresi Bildiriler (National Mechanics Congress), Kayseri, Turkey, Teorik ve Uygulamalı Türk Milli Komitesi. Maltepe Üniversitesi Basımevi, June 22-26, 2009.
  3. Akgul, F., Bayrak, H. “Güvenilirlik analiz metodunun köprülere uygulanması (Applicaton of the reliability methods to bridges)”, Proceedings of the XV. UMK-Ulusal Mekanik Kongresi Bildiriler (National Mechanics Congress), Isparta, Turkey, September 5-9, 2007. Teorik ve Uygulamalı Türk Milli Komitesi. Süleyman Demirel Üniversitesi Basımevi, pp 791-795, 2008.

 

 

Reports

 

  1. “Köprü Muayenesi El Kitabı (Bridge Inspection Manual)”, Sanat Yapıları Dairesi Başkanlığı, Karayolları Genel Müdürlüğü, T.C. Ulaştırma, Denizcilik ve Haberleşme Bakanlığı, Ankara, 278 sayfa, 2012.
  2. Akgul F. ““Teknik Rapor-Köprü Yönetim Sistemine Eleman Hasar Dereceleri ve Hasar Miktarlarının Girilmesi-II (Technical Report - Recording Element Damage Ratings and Damage Quantities into the Bridge Management System KYS) ”, Submitted to Bridge Maintence Division, General Directorate of Highways, Turkish Ministry of Environment and Urban Planning, , May 27, 2011.
  3. Akgul F. “Teknik Rapor-Köprülerde Eleman Hasar Derecesi, Eleman Hasar Tipleri ve Hasar Tipi Dereceleri Üzerine Görüşler (Technical Report - Recommendations for Element Condition Rating, Element Damage Types and Damage Type Categories for Bridges)”, Submitted to Bridge Maintence Division, General Directorate of Highways, Turkish Ministry of Environment and Urban Planning, , March 18, 2011.
  4. Akgul F. “Teknik Rapor-Köprü Muayenelerinde Hasar Derecelendirmesi (Technical Report-Condition Rating in Bridge Evaluations)”, Submitted to Bridge Maintence Division, General Directorate of Highways, Turkish Ministry of Environment and Urban Planning, February 18, 2011.
  5. Akgul, F., Frangopol, D.M. “RELNET: Reliability of System Networks”, Report No. 02-1, Structural Engineering and Structural Mechanics Research series No. CU/SR-02/1, Department of Civil, Environmental, and Architectural Engineering, University of Colorado, Boulder, 2002.
  6. Kong, J.S., Akgul, F., Frangopol, D.M. “REHAB: A Program to Predict the Probability and Cost of Maintenance/Repair for a Deteriorating System of Group of Systems”, Report No. 00-3, Structural Engineering and Structural Mechanics Research series No. CU/SR-00/3, Department of Civil, Environmental, and Architectural Engineering, University of Colorado, Boulder, 2000.
  7. Kong, J.S., Akgul, F., Frangopol, D.M. “MONTE: Monte Carlo Simulation Program”, Report No. 00-1, Structural Engineering and Structural Mechanics Research series No. CU/SR-00/1, Department of Civil, Environmental, and Architectural Engineering, University of Colorado, Boulder, November 2000.
  8. Kong, J.S., Akgul, F., Frangopol, D.M. “FMAINT: A Program to Predict the Probability Distribution of First Time to Downcross a Target Performance Level for a Deteriorating System”, Report No. 00-2, Structural Engineering and Structural Mechanics Research series No. CU/SR-00/2, Department of Civil, Environmental, and Architectural Engineering, University of Colorado, Boulder, 2000.

 

Research Projects:


Funded Projects: As Principal Investigator

 

“Development of the Bridge Management System (BMS) for Turkey.”

TÜBİTAK 1007 Project (The Scientific and Technological Research Council of Turkey)

KAMAG Project No: 108G018

Accepted: Jul. 16, 2009. Duration: Sep. 2009-Mar. 2012 (2.5 yrs)

Budget: 1,680,410 TL = $1,120,000.

Principal Investigator:  Akgul, F.

Academic Team Members (Dept. of Engr. Sci.): Prof. Dr. Polat Saka, Prof. Dr. Murat Dicleli

Assoc. Prof. Dr. Tolga Yılmaz, Prof. Dr. Yasemin Serin (Dept. of Industr. Engr.)

Prof. Dr. Cem Yalçın (Bosphorus Univ., Istanbul), Assoc. Prof. Dr. Fatih Yalçın (Istanbul Univ.)

Software Development: ETC-Turkey,  METU-Technopark.

 

Projects: Worked as a Researcher

 

  1. NSF Project, “Life-Cycle Cost Model Simulator for Decision Making in Bridge Network Management”, NSF Org: CMMI Division of Civil, Mechanical, and Manufacturing Innovation, Award Number: CMS- 0217290, Principal Investigator: Prof. Dan M. Frangopol, University of Colorado at Boulder, October 1, 2002 - August 31, 2006.
  2. NSF Project, “Optimum Life-Cycle Bridge Maintenance Planning Based on System Reliability”, NSF Org: CMMI Division of Civil, Mechanical, and Manufacturing Innovation, Award Number: CMS-9912525, Principal Investigator: Prof. Dan M. Frangopol, University of Colorado at Boulder, April 19, 2000 - April 19, 2004.
  3. NSF Project, “Finite Element and Boundary Element Modeling of Crack Propagation in Three-Dimensional Structures”, NSF Org: CMMI Division of Civil, Mechanical, and Manufacturing Innovation, Award Number: CMS- 8706409, Principal Investigator: Prof. Walter H. Gerstle, University of New Mexico, August 1, 1987- January 31, 1990.

 

Development of Research Laboratories:

 

  1. Developed “Köprü Yönetim Sistemi Projesi Laboratuvarı (Bridge Management System Project Laboratory)” in the Department of Engineering Sciences, MM Building, Room 613, in Collaboration with Prof. Dr. Mehmet Polat Saka, Prof. Murat Dicleli, Asst. Prof. Dr. Tolga Yılmaz, and Prof. Dr. Turgut Tokdemir  (2009-2012).
  2. Developed “Hasar Tespiti ve Muayene Laboratuarı (Damage Detection and Inspection Laboratory)” in the Department of Engineering Sciences, MM Building, Room 612, in Collaboration with Prof. Dr. Mehmet Polat Saka, Prof. Murat Dicleli, Asst. Prof. Dr. Tolga Yılmaz, and Prof. Dr. Turgut Tokdemir  (2009-2012).

 

Educational Activities:


 

Ph.D. Students

 

Hakan Bayrak

Thesis Title: “Lifetime Condition Prediction for Bridges”

METU Department of Engineering Sciences   (2011)

Faraz Masoumi

Thesis Title: “Development of a Bridge Management System with Damage-Level Condition Categorization”

METU Department of Engineering Sciences   (2014)


 

M.Sc. Students

 

Vahid Ghasemnejad Berenji

Thesis Title: “Time-variant System Reliability for Bridges”

METU Department of Engineering Sciences   (In progress)

Reza Aslzad

Thesis Title: “Maintenance Optimization and Damage Assessment for Deteriorating Bridges”

METU Department of Engineering Sciences   (In progress)


 

Teaching:


ES 221 Engineering Mechanics-Statics
ES 223 Engineering Mechanics-Statics and Strength of Materials
ES 224 Engineering Mechanics-Strength of Materials
ES 303 Statistical Methods for Engineers
ES 506 Reliability