# Kutay Orakçal

Rank & Status:

Professor, full time

Phone Number:

+90(212) 359-7616

Fax:

+90(212) 287-2457

E-Mail:

Education:

Ph.D | Civil Engineering | University of California, Los Angeles, USA | 2004 |

M.S. | Civil Engineering | University of California, Los Angeles, USA | 2001 |

B.S. | Civil Engineering | Middle East Technical University, Ankara, Turkey | 1998 |

Service on the Faculty:

Professor | 2019- |

Associate Professor | 2013-2019 |

Assistant Professor | 2006-2013 |

Experience:

Lecturer and Post-Doctoral Researcher | University of California, Los Angeles | June 2004-August 2006 |

Graduate Student Researcher and Teaching Assistant | University of California, Los Angeles | September 1998-August 2004 |

Publications:

**Journal Papers (SCI/SCIE)**

- Güllü, M.F., Orakçal, K., “Nonlinear Finite Element Modeling of Reinforced Concrete Walls with Varying Aspect Ratios”, Journal of Earthquake Engineering, DOI:10.1080/13632469. 2019.1614498, 2019.
- Orakçal, K., Massone L.M., Uluğtekin, D., “A Hysteretic Constitutive Model for Reinforced Concrete Panel Elements”, International Journal of Concrete Structures and Materials, V. 13, 2019.
- Güllü, M.F., Orakçal, K., Kolozvari, K., “The Fixed-Strut-Angle Finite Element (FSAFE) Model for Reinforced Concrete Structural Walls”, Bulletin of Earthquake Engineering, V. 17, No. 12, 2019.
- Kolozvari, K., Kalbasi, K., Orakçal, K., Massone L.M., Wallace, J.W., “Shear-Flexure-Interaction Models for Planar and Flanged Reinforced Concrete Walls”, Bulletin of Earthquake Engineering, V. 17, No. 12, 2019.
- Tura, C., Orakçal, K., “Earthquake Response Analysis of Multiple Towers on a Common Podium: A Representative Case Study”, Teknik Dergi – Technical Journal, V. 30, No. 6, 2019.
- Kolozvari, K., Biscombe, L., Dashti, F., Dhakal, R.P., Gogus, A., Güllü, M.F., Henry, R., Massone, L.M., Orakçal, K., Rojas, F., Shegay, A., Wallace, J.W., “State-of-the-Art in Nonlinear Finite Element Modeling of Isolated Planar Reinforced Concrete Walls”, Engineering Structures, V. 194, 2019.
- Terzioğlu, T., Orakçal, K., Massone, L.M., “Cyclic Lateral Load Behavior of Squat Reinforced Concrete Walls”, Engineering Structures, V. 160, 2018.
- Kolozvari, K., Arteta, C., Fischinger, M., Gavridou, S., Hube, M., Isakovic, T., Lowes, L.N., Orakçal, K., Vásquez, J, Wallace, J.W., “Comparative Study of State-of-the-Art Macroscopic Models for Planar Reinforced Concrete Walls”, ACI Structural Journal, V. 115, No. 6, 2018.
- Kolozvari, K., Orakçal, K., Wallace, J.W., “New OpenSees Models for Simulation of Nonlinear Flexural and Shear-Flexural Interaction Behavior of Reinforced Concrete Walls and Columns”, Computers and Structures, V. 196, 2018.
- Cömert, M., Demir, C., Ateş, A.O., Orakçal, K., İlki, A., “Seismic Performance of Three-Story Full-Scale Sub-Standard Reinforced Concrete Buildings”, Bulletin of Earthquake Engineering, V. 15, No. 8, 2017.
- Kolozvari, K., Orakçal, K., Wallace, J.W., “Modeling of Cyclic Shear-Flexure Interaction in Reinforced Concrete Structural Walls. I: Theory”, ASCE Journal of Structural Engineering, V. 141, No. 5, 2015.
- Kolozvari, K., Tran, T., Orakçal, K., Wallace, J.W., “Modeling of Cyclic Shear-Flexure Interaction in Reinforced Concrete Structural Walls. II: Experimental Validation”, ASCE Journal of Structural Engineering, V. 141, No. 5, 2015.
- Göksu, C., Yılmaz, H., Chowdhury, S.R., Orakçal, K., İlki, A., “The Effect of Lap Splice Length on the Cyclic Lateral Load Behavior of RC Members with Low-Strength Concrete and Plain Bars”, Advances in Structural Engineering, V. 17, No. 5, 2014.
- İlki, A., Cömert, M., Demir, C., Orakçal, K., Uluğtekin, D., Tapan, M., Kumbasar, N., “Performance-Based Rapid Seismic Assessment Method (PERA) for Reinforced Concrete Frame Buildings”, Advances in Structural Engineering, V. 17, No. 3, 2014.
- Tapan, M., Cömert, M., Demir, C., Sayan, Y., Orakçal, K., İlki, A., “Failures of Structures during the October 23, 2011 Tabanlı–Van and November 9, 2011 Edremit–Van Earthquakes in Turkey”, Engineering Failure Analysis, V. 34, 2013.
- Chowdhury, S.R., Orakçal, K., “Analytical Modeling of Columns with Inadequate Lap Splices”, ACI Structural Journal, V. 110, No. 5, 2013.
- Soyöz, S., Taciroğlu, E., Orakçal, K., Nigbor, R., Skolnik, D., Luş, H., Şafak, E., “Ambient and Forced Vibration Testing of a Reinforced Concrete Building Before and After its Seismic Retrofitting”, ASCE Journal of Structural Engineering, V. 139, No. 10, 2013.
- Chowdhury, S.R., Orakçal, K., “An Analytical Model for Reinforced Concrete Columns with Lap Splices”, Engineering Structures, V. 43, 2012.
- Massone. M., Orakçal, K., Wallace, J.W., “Modeling of Squat Structural Walls Controlled by Shear”, ACI Structural Journal, V. 106, No. 5, 2009.
- Orakçal, K., Massone, L.M., Wallace, J.W., “Shear Strength of Lightly Reinforced Wall Piers and Spandrels”, ACI Structural Journal, V. 106, No. 4, 2009.
- Orakçal, K., Wallace, J.W., “Flexural Modeling of Reinforced Concrete Walls – Experimental Verification”, ACI Structural Journal, V. 103, No. 2, 2006.
- Orakçal, K., Wallace, J.W., Conte, J.P., “Flexural Modeling of Reinforced Concrete Walls – Model Attributes”, ACI Structural Journal, V. 101, No. 5, 2004.
- Wallace, J.W., Orakçal, K., “ACI 318-99 Provisions for Seismic Design of Structural Walls”, ACI Structural Journal, V. 99, No. 4, 2002.

**International Conference Papers**

- Güllü, M.F., Orakçal, K., Kolozvari, K., “Nonlinear Finite Element Modeling of Low-Rise Shear-Controlled Structural Walls”, Proceedings of the 16th European Conference on Earthquake Engineering, Thessaloniki, Greece, June 2018.
- Güllü, M.F., Orakçal, K., Kolozvari, K., “Nonlinear Finite Element Modeling of Low-Rise Shear-Controlled Structural Walls”, Proceedings of the 16th European Conference on Earthquake Engineering, Thessaloniki, Greece, June 2018.
- Kolozvari, K., Miller, R., Güllü, M.F., Orakçal, K., “Three-Dimensional Finite Element Modeling of Reinforced Concrete Walls under Uniaxial and Biaxial Loading”, Proceedings of the 16th European Conference on Earthquake Engineering, Thessaloniki, Greece, June 2018.
- Güllü, M.F., Orakçal, K., Kolozvari, K., “Nonlinear Finite Element Modeling of Squat Walls with Shear-Dominant Behavior”, Proceedings of the 11th National Conference on Earthquake Engineering, Los Angeles, California, June 2018.
- Kolozvari, K., Rea, N., Güllü, M.F., Orakçal, K., “Three-Dimensional Nonlinear Modeling of Reinforced Concrete Walls under Uniaxial and Biaxial Loading”, Proceedings of the 11th National Conference on Earthquake Engineering, Los Angeles, California, June 2018.
- Kolozvari, K., Miller, R., Orakçal, K., “Finite Element Modeling of Reinforced Concrete Structural Walls for Performance Based Design”, Proceedings of the 11th International Conference on Earthquake Resistant Engineering Structures, Alicante, Spain, July 2017.
- Güllü, M.F., Orakçal, K., “Nonlinear Finite Element Modeling of Reinforced Concrete Structural Walls”, Proceedings of the 16th World Conference on Earthquake Engineering, Santiago, Chile, January 2017.
- Kolozvari, K., Orakçal, K., Wallace, J.W., “New OpenSees Models for Simulation of Nonlinear Flexural and Shear-Flexural Interaction Behavior of Reinforced Concrete Walls and Columns”, Proceedings of the 16th World Conference on Earthquake Engineering, Santiago, Chile, January 2017.
- Akalp, S., Orakçal, K., Luş, H., İlki, A., Ersoy, U., “A Simplified Preliminary Design Method for Low-to-Medium Rise Reinforced Concrete Buildings”, Proceedings of the 16th World Conference on Earthquake Engineering, Santiago, Chile, January 2017.
- Cömert, M., Demir, C., Ateş, A.O., Orakçal, K., İlki, A., “Earthquake Performance of Three Story Actual Sub-Standard Reinforced Concrete Building”, Proceedings of the 16th U.S.-Japan-N.Z. Workshop on the Improvement of Structural Engineering and Resiliency, Nara, Japan, June 2016.
- Horoz, B., Güllü, M.F., Orakçal, K., “Modeling of Coupled Nonlinear Shear and Flexural Responses in Medium-Rise RC Walls”, Proceedings of the 3rd Conference on Smart Monitoring, Assessment, and Rehabilitation of Civil Structures, Istanbul, Turkey, September 2015.
- Kolozvari, K., Orakçal, K., Wallace, J.W, “Cyclic Shear-Flexure Interaction in Reinforced Concrete Structural Walls – Modeling and Validation”, Proceedings of the 10th U.S. National Conference on Earthquake Engineering, Anchorage, Alaska, July 2014.
- Kozmidis, A., Melek, M., Massone, L.M., Orakçal, K., “Comparison of Industry-Standard Nonlinear Dynamic Analysis Methods with Observed Damage on a Reinforced Concrete Building”, Proceedings of the 10th U.S. National Conference on Earthquake Engineering, Anchorage, Alaska, July 2014.
- Güllü, M.F., Orakçal, K., “Nonlinear Finite Element Modeling of Reinforced Concrete Structural Walls”, Proceedings of the 2nd European Conference on Earthquake Engineering and Seismology, Istanbul, Turkey, August 2014.
- Güllü, M.F., Örendil, A.E., Orakçal, K., “Finite Element Modeling of Low-Rise Structural Walls with Shear-Controlled Responses”, Proceedings of the 11th International Congress on Advances in Civil Engineering, Istanbul, Turkey, October 2014.
- Orakçal, K., Terzioğlu, T., Massone, L.M., “Lateral Load Behavior of Low-Rise Structural Walls”, Proceedings of the 10th International Congress on Advances in Civil Engineering, Ankara, Turkey, October 2012.
- Orakçal, K., Chowdhury, S.R., “Bond Slip Modeling of Reinforced Concrete Columns with Deficient Lap Splices”, Proceedings of the 15th World Conference on Earthquake Engineering, Lisbon, Portugal, September 2012.
- Kolozvari, K., Tran, T., Wallace, J.W., Orakçal, K., “Modeling of Cyclic Shear-Flexure Interaction in Reinforced Concrete Structural Walls”, Proceedings of the 15th World Conference on Earthquake Engineering, Lisbon, Portugal, September 2012.
- Orakçal, K., Uluğtekin, D., Massone L.M., “Constitutive Modeling of Reinforced Concrete Panel Behavior under Cyclic Loading”, Proceedings of the 15th World Conference on Earthquake Engineering, Lisbon, Portugal, September 2012.
- Tapan, M., Cömert, M., Orakçal, K., İlki, A., “Failure Analysis of a Typical Prefabricated Industrial Structure Collapsed during the September 23, 2011 Van Tabanlı Earthquake”, Proceedings of the 5th International Conference on Engineering Failure Analysis, The Hague, Netherlands, July 2012.
- İlki, A., Orakçal, K., Tapan, M., Demir, C., Cömert, M., Tuncel, Y., Kusunoki, K., Tasai, A., “Lessons Learnt from the 2011 Van Earthquakes in Terms of Structural Engineering”, Joint Proceedings of the 9th International Conference on Urban Earthquake Engineering and the 4th Asian Conference on Earthquake Engineering, Tokyo, Japan, March 2012.
- Chowdhury, S.R., Orakçal, K., “Analytical Modeling of Bond Slip Responses in Reinforced Concrete Columns”, Proceedings of the Structural Engineers World Congress, Como-Cernobbio, Italy, April 2011
- Massone, L.M., Orakçal, K., Wallace, J.W., “Experimental and Analytical Assessment of Shear-Controlled Wall Responses”, Proceedings of the 9th U.S. National and 10th Canadian Conference on Earthquake Engineering, Toronto, Canada, July 2010.
- Massone, L.M., Orakçal, K., Wallace, J.W., “Seismic Rehabilitation – Benefits of Component Testing”, Proceedings of the ATC & SEI 2009 Conference on Improving the Seismic Performance of Existing Buildings and Other Structures, San Francisco, California, December 2009.
- Orakçal, K., Massone, L.M., Wallace, J.W., “Shear Strength of Lightly Reinforced Wall Piers and Spandrels”, Proceedingsof the 14th World Conference on Earthquake Engineering, Beijing, China, October 2008.
- Orakçal, K., Massone, L.M., Wallace, J.W., “Modeling of Squat Shear Walls Controlled by Shear”, Proceedings of the 14th World Conference on Earthquake Engineering, Beijing, China, October 2008.
- Lange, S. T., Salamanca, A., Wallace, J. W., Orakçal K., Gavan, J., Reynolds, A., Toranzo, L., Young, R., “Seismic Rehabilitation – Benefits of Component Testing”, Proceedings of the SEAOSC Annual Meeting, Squaw Creek, California, September 2007.
- Massone, L.M., Orakçal, K., Wallace, J.W., “Modeling of Shear-Flexure Interaction in Reinforced Concrete Walls”, Proceedings of the 8th National Conference on Earthquake Engineering, San Francisco, California, April 2006.
- Wallace, J.W., Massone, L.M., Orakçal, K., Elwood, K.J., "Lateral Load Responses and Axial Load Capacity of Reinforced Concrete Walls and Wall Piers", Proceedings of the First NEES/E-Defense Workshop on Collapse Simulation of Reinforced Concrete Building Structures, Berkeley, California, July 2005.
- Orakçal, K., Wallace, J.W., “Modeling of Slender Reinforced Concrete Walls”, Proceedings of the13th World Conference on Earthquake Engineering, Vancouver, Canada, August 2004.
- Massone, L.M., Orakçal, K., Wallace, J.W., “Flexural and Shear Responses in Slender Reinforced Concrete Shear Walls”, Proceedings of the13th World Conference on Earthquake Engineering, Vancouver, Canada, August 2004
- Orakçal, K., Wallace, J.W., “Nonlinear Modeling of Reinforced Concrete Structural Walls”, Proceedings of the 7th National Conference on Earthquake Engineering, Boston, Massachusetts, July 2002.
- Wallace, J.W., Orakçal, K., Cherlin, M., Sayre, B.L., “Lateral Load Behavior of Shear Walls with Structural Steel Boundary Columns”, Proceedings of the 6th ASCCS Conference on Composite and Hybrid Structures, Los Angeles, California, March 2000.

**National Conference Papers**

- Şahinkaya, Y., Orakçal, K., İlki, A., “Mevcut Yapılardaki Betonarme Perdelerin Tekrarlı Yatay Yükler Altındaki Performansı ve Deprem Etkilerine Karşı Güçlendirilmesi”, 6. Ulusal Yapı Mekaniği Laboratuvarları Toplantısı, Trabzon, Kasım 2017.
- İlki, A., Orakçal, K., Cömert, M., Gülkan, P., “Az Katlı, Düzenli ve Yerinde Dökülmüş Betonarme Binalar için Basitleştirilmiş Deprem Tasarımı Kuralları”, 3. Türkiye Deprem Mühendisliği ve Sismoloji Konferansı, İzmir, 2015.
- Güllü, M.F., Horoz, B., Orakçal, K., “Betonarme Perde Duvarlarda Bileşik Kesme ve Eğilme Davranışının Modellenmesi”, 8. Ulusal Deprem Mühendisliği Konferansı, İstanbul, 2015.
- Kozmidis, A., Orakçal, K., Melek, M., Massone, L.M., “Şili Depreminde Hasar Görmüş Betonarme Binalardaki Hasarın Doğrusal Olmayan Dinamik Analiz Sonuçlarıyla Karşılaştırılması”, 8. Ulusal Deprem Mühendisliği Konferansı, İstanbul, 2015.
- Akalp, S., Orakçal, K., Luş, H., İlki, A., Ersoy, U., “Az ve Orta Yükseklikteki Betonarme Binaların Öntasarımı için Basit bir Yöntemin Değerlendirilmesi”, 8. Ulusal Deprem Mühendisliği Konferansı, İstanbul, 2015.
- İlki, A., Cömert, M., Orakçal, K., Gülkan, P., “Az Katlı Düzenli Betonarme Binalar için Alternatif Basitleştirilmiş Deprem Tasarımı”, 8. Ulusal Deprem Mühendisliği Konferansı, İstanbul, 2015.
- Soyöz, S., Taciroğlu, E., Orakçal, K., Luş, H., “Depreme Karşı Güçlendirme Öncesi ve Sonrasında Bir Binanın Dinamik Özelliklerinin Deneysel Modal Analiz Yöntemiyle Belirlenmesi”, 1. Türkiye Deprem Mühendisliği ve Sismoloji Konferansı, Ankara, 2011.
- Orakçal, K., Chowdhury, S.R., “Betonarme Kolonlarda Donatı Sıyrılmasının Analitik Modellenmesi”, 1. Türkiye Deprem Mühendisliği ve Sismoloji Konferansı, Ankara, 2011.
- Orakçal, K., Chowdhury, S.R., “Eksik Bindirme Boylu Betonarme Kolon Davranışının Analitik Modellenmesi”, 7. Ulusal Deprem Mühendisliği Konferansı, İstanbul, 2011.
- Zengin, E., Tezcan, S.S., Orakçal, K., “Izmit Bay Crossing by a Hybrid Long Span Suspension Bridge”, 2. Köprüler ve Viyadükler Sempozyumu, Eskişehir, 2011.
- Soyöz, S., Taciroğlu, E., Orakçal, K., Luş, H., Şafak, E., “Depreme Karşı Güçlendirme Öncesi ve Sonrasında Bir Binanın Dinamik Özelliklerinin Deneysel Modal Analiz Yöntemiyle Belirlenmesi”, 7. Ulusal Deprem Mühendisliği Konferansı, İstanbul, 2011.
- Orakçal, K., Kaya, S.A., “Kolonlarda Yetersiz Bindirme Boyu İçeren Betonarme Çerçevelerin CFRP Şeritler ile Güçlendirilmesi”, 3. Ulusal Yapı Mekaniği Laboratuvarları Toplantısı, Kocaeli, 2011.
- Orakçal, K., Terzioğlu, T., “Betonarme Perde Duvarların Bileşik Kesme ve Eğilme Davranışlarının İncelenmesi”, 3. Ulusal Yapı Mekaniği Laboratuvarları Toplantısı, Kocaeli, 2011.
- Soyöz, S., Orakçal, K., Luş, H., “Depreme Karşı Güçlendirmenin Bir Binanın Dinamik Özelliklerine Etkisinin Deneysel Modal Analiz Yöntemiyle Belirlenmesi”, 3. Ulusal Yapı Mekaniği Laboratuvarları Toplantısı, Kocaeli, 2011.

**Book Chapters**

- Orakçal, K., “Towards Robust Behavioral Modeling of Reinforced Concrete Members”, in A. İlki and M. Fardis (Eds.): Seismic Evaluation and Rehabilitation of Structures – Geotechnical, Geological and Earthquake Engineering, Springer, V. 26, pp 355-377, 2014.
- Massone, L.M., Orakçal, K., Wallace, J.W., “Shear - Flexure Interaction for Structural Walls”, in A. Motomoros and K. Elwood (Eds.): Deformation Capacity and Shear Strength of Reinforced Concrete Members under Cyclic Loading, American Concrete Institute Special Publication, V. 236, pp. 127-150, 2006.

**Research Reports**

- Kolozvari, K., Orakçal, K, Wallace, J.W., “Shear-Flexure Interaction Modeling for Reinforced Concrete Structural Walls and Columns under Reversed Cyclic Loading”, Pacific Earthquake Engineering Research Center, Technical Report No: PEER 2015/12, University of California Berkeley, California, U.S.A., 2015.
- Wallace, J.W., Massone L.M., Orakçal K., Kang, T.H-K., “St. Jude Medical Center, Fullerton, California, Horizontal Wall Segment Component Test Program”, Technical Report No: UCLA SEERL 2007/1, University of California Los Angeles, California, U.S.A., 2007.
- Orakçal, K., Massone, L.M., Wallace, J.W., “Analytical Modeling of Reinforced Concrete Walls for Predicting Flexural and Coupled Shear-Flexural Responses”, Pacific Earthquake Engineering Research Center, Technical Report No: PEER 2006/07, University of California Berkeley, California, U.S.A., 2006.
- Wallace, J. W., Massone, L.M., Orakçal, K., “St. Joseph’s Healthcare Orange, California, SPC-2 Upgrade: E/W Wing Component Test Program”, Technical Report No. UCLA SEERL 2006/1, University of California Los Angeles, California, U.S.A., 2006.

Research:

- Nonlinear Modeling and Seismic Response Simulation of Reinforced Concrete Structural Systems
- Seismic Resistant Design of Reinforced Concrete Buildings
- Performance-Based Seismic Design of Tall Buildings
- Laboratory and Field Testing
- Structural Walls

Courses:

Course Code | Course Title | Hours per Week |

CE 354 | Reinforced Concrete I | 4 hrs. lecture + 1 hr. discussion |

CE 353 | Steel Structures | 4 hrs. lecture + 1 hr. discussion |

CE 245 | Mechanics | 4 hrs. lecture + 1 hr. discussion |

CE 246 | Strength of Materials | 4 hrs. lecture + 1 hr. discussion |

CE 555 | Behavior and Design of Reinforced Concrete | 3 hrs. lecture |

CE58K | Performance-Based Seismic Design of Tall Buildings | 3 hrs. lecture |

CE 656 | Earthquake Engineering | 3 hrs. lecture |

Awards:

- Best Paper Award, 10th International Congress on Advances in Civil Engineering, Ankara, 2012.
- Excellence in Teaching Award, Boğaziçi University School of Engineering, 2008, 2009, 2010, 2011, 2015.
- Lecturer of the Year Award, University of California Los Angeles, American Society of Civil Engineers Student Chapter, 2005, 2006.
- Favourite Teaching Assistant Award, University of California Los Angeles, American Society of Civil Engineers Student Chapter, 2000.
- Research grants throughout PhD and post-PhD work from the National Science Foundation and the Pacific Earthquake Engineering Research Center (Grants CMS-9632457, CMS-9810012, and EEC-9701568).