Parr, M.J., Connor, R.J., and Bowman, M.D., (2009). "A Proposed Method for Determining the Interval for Hands-On Inspection of Steel Bridges with Fracture Critical Members," Journal of Bridge Engineering, ASCE, Accepted for publication.
Akinci, N.O., Liu, J., and Bowman, M.D., (2008). "Parapet Strength and Contribution to Live Load Response for Superload Passages," Journal of Bridge Engineering, ASCE, 13(1); 55-63.
Chotickai, P., and Bowman, M.D., (2006). "Comparative Study of Fatigue Provisions for the AASHTO Fatigue Guide Specifications and the LRFD Manual for Evaluation," Journal of Bridge Engineering, ASCE, Submitted and under re-review.
Wood, S.M., Akinci, N.O., Liu, J., and Bowman, M.D., (2006). "Analysis and Instrumentation of a Steel Bridge for Investigating the Effects of Superloads". Transportation Research Board, Accepted to Publication.
Chotickai, P., and Bowman, M.D., (2006). "Truck Models for Improved Fatigue Life Predictions of Steel Bridges," Journal of Bridge Engineering, ASCE, 11(1); 71-80.
Li, X., Whalen, T.M., and Bowman, M.D., (2005). "Fatigue Strength of Double-Mastarm Sign Structures for Natural Wind," Transportation Research Record, National Research Council; No. 1928.
Barth, A.S., and Bowman, M.D., (2001). "Fatigue Behavior of Welded Diaphragm-to-Beam Connections." Journal of Structural Engineering, ASCE 27(10); 1145-1152.
Recent NCHRP Reports
Dexter, R.J., Connor, R.J., and Kaczinski, M.R., "Fatigue Design of Modular Bridge Expansion Joints", NCHRP Report 402, National Cooperative Highway Research Program (NCHRP), Washington, DC, January, 1998.
Dexter, R.J., Connor, R.J., Mahmoud, H.N., "Inspection and Management of Bridges with Fracture-Critical Members", National Cooperative Highway Research Program, NCHRP Synthesis Report 354, National Academy Press, Washington D.C., to be published in 2005.
Connor, R.J., Urban, M.R., Kaufmann, E.J., "Heat-Straightening Repair of Damaged Steel Bridge Girders - Fatigue and Fracture Performance", NCHRP Report 604, National Cooperative Highway Research Program (NCHRP), Washington, DC, January, 2008.
Connor, R.J., Liu, J., Higgins, C., "Bridge Deck Design Criteria and Testing Procedures - Final Report for NCHRP Project, 10-72", National Cooperative Highway Research Program National Academies, Washington, DC, July, 2012.
Connor, R.J., Collicott, S.H., DeSchepper, A.M., Sherman, R.J., and Ocampo, J.A., "Development of Fatigue Loading and Design Methodology for High-Mast Light Poles", NCHRP Report 718, National Cooperative Highway Research Program (NCHRP), Washington, DC, 2012.
Recent Peer Reviewed Publications
Kozy, B.M., Connor, R.J., Paterson, D., Mertz, D.R., "Proposed Revisions to the AASHTO LRFD Bridge Design Specifications for Orthotropic Steel Deck Bridges", Journal of Bridge Engineering, American Society of Civil Engineers. Volume 16, Issue 6, pp. 759-767, November/December, 2011.
Higgins, C., Turan, T., Connor, R.J., Liu, J., "A Unified Approach for LRFD Live Load Moments in Bridge Decks", Journal of Bridge Engineering, American Society of Civil Engineers. Volume 16, Issue 6, pp. 804-811, November/December, 2011.
Higgins, C., Turan, T., Connor, R.J., "Rapid Ranking Procedure for Gusset Plate Connections in Existing Steel Truss Bridges", Journal of Bridge Engineering, American Society of Civil Engineers Volume 15, Issue 5, pp. 581-596, September/October, 2010.
Parr, M.J., Connor, R.J., Bowman, M., "A Method for Determining the Interval for Hands-on Inspection of Steel Bridges with Fracture Critical Members", Journal of Bridge Engineering, American Society of Civil Engineers Vol. 15, No. 4, July/August 2010, pp. 352-363.
Warpinski, M.K., Connor, R.J., Hodgson, I.C., "The Influence of Flexibility on the Fatigue Performance of the Base Plate Connection in High-mast Lighting Towers", Journal of Structural Engineering, American Society of Civil Engineers, Vol. 136, No. 3, March 2010, pp. 324-329.
Hall, J., Connor, R.J.,, "The Influence of Baseplate Flexibility on the Fatigue Performance of Welded Socket Connection", Journal of Structural Engineering, American Society of Civil Engineers, Vol. 134, No. 6, June 2008, pp. 911-918.
Gao, X., Castaneda, N.E., and Dyke, S.J., "Real-time hybrid simulation - from dynamic system, motion control to experimental error," Earthquake Engineering and Structural Dynamics, 42(6), 815-832, DOI: 10.1002/eqe.2246 (2013).
Wang, Y., and Dyke, S.J., (2013), "Modal-based LQG for Smart Base Isolation System Design in Seismic Response Control." J. Structural Control Health Monitoring, Wiley, 20: 753-768. doi: 10.1002/stc.1490.
Cha, Y., Agrawal, A., and Dyke, S.J., (2013). "Time Delay Effects on Large-scale MR damper Based Semi-active Control Strategies," Smart Materials and Structures, Vol. 22 No. 1, 015011 doi:10.1088/0964-1726/22/1/015011.
Cha, Y., Zhang, J., Agrawal, A., Dong, B., Friedman, A.J., Dyke, S.J., and Ricles, J., (2013). "Comparative Studies of Semi-active Control Strategies for MR Dampers: Pure Simulation and Real-Time Hybrid Tests." J. Struct. Eng. 139, SPECIAL ISSUE: NEES 1: Advances in Earthquake Engineering, 1237-1248.
Hackmann, G., Guo, W., Yan, G., Sun, Z., Lu, C., and Dyke, S.J., (2014). "Cyber-Physical Co-design of Distributed Structural Health Monitoring with Wireless Sensor Networks," IEEE Transactions on Parallel and Distributed Systems, Vol. 25, Issue 1, pp. 63-72 DOI: 10.1109/TPDS.2013.30. http://doi.ieeecomputersociety.org/10.1109/TPDS.2013.30.
Song, W., and Dyke, S.J., (2013). "Development of a Cyber-Physical Experimental Platform for Real-Time Dynamic Model Updating." Mechanical Systems and Signal Processing, 37(1-2): 388-402.
Song, W., and Dyke, S.J., (2013). "Real-time Dynamic Model Updating of a Hysteretic Structural System," Journal of Structural Engineering, ASCE, 10.1061/(ASCE)ST.1943-541X.0000857.
Song, W., and Dyke, S.J., (2013). "Optimal Feedback Design For Nonlinear Stochastic Systems Using Pseudospectral Method," International Journal of Non-Linear Mechanics, 55: 70-78 doi:10.1016/j.ijnonlinmec.2013.04.014.
Song, W., Dyke, S.J., and Harmon, T., (2013). "Application of Nonlinear Model Updating for A Reinforced Concrete (RC) Shear Wall," Journal of Engineering Mechanics, ASCE, 139(5): 635-649, doi: 10.1061/(ASCE)EM.1943-7889.0000519.
Castaneda, N., Gao, X., and Dyke, S.J., (2013). "A Computational Tool for Real-time Hybrid Simulation of Seismically Excited Frame Structures." Journal of Computing in Civil Engineering, ASCE DOI: 10.1061/(ASCE)CP.1943-5487.0000341.
Cha, Y., Agrawal, A., Friedman, A.J., Phillips, B., Ahn, R., Dong, B., Dyke, S.J., Spencer, B.F., Ricles, J., and Christenson, R., (2013). "Performance Validations of Semi-active Controllers on a Large Scale Moment Resisting Frame Equipped with a 200kN MR Damper Using Real-time Hybrid Simulations," Journal of Structural Engineering, ASCE http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0000982.
Gao, X., Castaneda, N.E., and Dyke, S.J., (2014). "Experimental Validation of a Generalized Procedure for MDOF Real-time Hybrid Simulation." Journal of Engineering Mechanics, ASCE, DOI: 10.1061/(ASCE)EM.1943-7889.0000696.
Friedman, A.J., Dyke, S.J., Phillips, B., Ahn, R., Dong, B., Chae, Y., Castaneda, N.E., Jiang, Z., Zhang, J., Cha, Y., Ozdagli, A.I., Spencer, B.F., Ricles, J., Christenson, R., Agrawal, A., Sause, R., (2014). "Large-scale Real-time Hybrid Simulation for Evaluation of Advanced Damping System Performance" Journal of Structural Engineering, ASCE, 10.1061/(ASCE)ST.1943-541X.0001093 , 04014150.
Barnawi, W., and Dyke, S.J., (2014). "Seismic Fragility Relationships of a Cable-Stayed Bridge Equipped with Response Modification Systems." J. Bridge Engineering, Vol. 19, SPECIAL ISSUE: Recent Advances in Seismic Design, Analysis, and Protection of Highway Bridges, A4013003 DOI: 10.1061/(ASCE)BE.1943-5592.0000468.
Gao, X., and Dyke, S.J., (2014). "Modeling and control of actuators for high performance structural dynamic testing" Smart Materials and Structures, vol. 23, 055008 doi:10.1088/0964-1726/23/5/055008.
Maghareh, A., Dyke, S.J., Prakash, A., and Rhoads, J., (2014), "Establishing a Stability Switch Criterion for Effective RTHS Implementation," Smart Structures and Systems, Vol. 14, No. 6 pp. 1221-1245, DOI: http://dx.doi.org/10.12989/sss.2014.14.6.1221.
Pejsa, S., Dyke, S.J., and Hacker, T., (2014). "Building Infrastructure for Preservation and Publication of Earthquake Engineering Research Data" The International Journal of Data Curation, Vol. 9, No. 2, pp. 83-97. doi:10.2218/ijdc.v9i2.335.
Maghareh, A., Dyke, S.J., and Prakash, A., (2014), "Establishing a Predictive Performance Indicator for Real-time Hybrid Simulation," Earthquake Engineering and Structural Dynamics, Vol. 43, Issue 15, pp. 2299-2318, December 2014 DOI: 10.1002/eqe.2448.
Qian, Y., Ou, G., Maghareh, A., and Dyke, S.J., (2014), "Parametric Identification of a Servo-Hydraulic Actuator for Real-time Hybrid Simulation," Mechanical Systems and Signal Processing DOI: 10.1016/j.ymssp.2014.03.001.
Ou, G., Dyke, S.J., Ozdagli, A.I., and Wu, B., (2014), "Robust Integrated Actuator Control: Experimental Verification and Real Time Hybrid Simulation Implementation," Earthquake Engineering and Structural Dynamics, DOI: 10.1002/eqe.2479.
Ou, G., Prakash, A., and Dyke, S.J., (2015), "A Modified Runge-Kutta Integration Method for Computation Delay in Real-time Hybrid Simulation," Journal of Earthquake Engineering, DOI:10.1080/13632469.2015.1027018.
Gomez, D., Dyke, S.J., and Maghareh, A., (2015), "Enabling Role of Hybrid Simulation Across NEES in Advancing Earthquake Engineering," Smart Structures and Systems Special Issue dedicated to Professor Yozo Fujino, January, DOI: 10.12989/sss.2015.15.3.913.
Yeum, C.M., and Dyke, S.J., (2015), "Vision based Automated Crack Detection for Bridge Inspection," Computer Aided Civil and Infrastructure Engineering, DOI: 10.1111/mice.12141.
Sun, Z., Krishnan, S., Hackmann, G., Yan, G., Dyke, S.J., Lu, C., and Irfanoglu, A., (2015). "Damage Detection on a Full-Scale Highway Sign Structure with a Distributed Wireless Sensor Network," Smart Structures and Systems, DOI: http://dx.doi.org/10.12989/sss.2015.16.1.223.
Sun, Z., Li, B., Dyke, S.J., Lu, C., and Linderman, L., (2015). "Benchmark problem in active structural control with wireless sensor network," Journal of Structural Control and Health Monitoring, DOI: 10.1002/stc.1761.
Xu, B., He, J., and Dyke, S.J., 2015. "Model Free Nonlinear Restoring Force Identification for SMA Dampers with Double Chebyshev Polynomials: Approach and Validation" Nonlinear Dynamics, DOI 10.1007/s11071-015-2257-0.
Li, F., Maghareh, A., and Dyke, S.J., 2015. "Experimental Implementation of Predictive Indicators for Configuring a Real-time Hybrid Simulation" Engineering Structures, doi:10.1016/j.engstruct.2015.07.040.
Bice, J.K., and Frosch, R.J., "A Parametric Study of Design Factors Influencing Cracking from Restrained Shrinkage," ASCE Journal of Bridge Engineering, in progress.
Bice, J.K., and Frosch, R.J., "Simplified Modeling of Restrained Volume Changes in Concrete Slabs," ACI Structural Journal, in progress.
Pay, A.C., and Frosch, R.J., "Bond Strength of Reinforcement: A Unified Theory," ACI Structural Journal, in progress.
Pay, A.C., Canbay, E., and Frosch, R.J., "Experimental Evaluation of Beams with Spliced FRP Reinforcement," ACI Structural Journal, in progress.
Calabrese, D.M., Wilken, D., and Frosch, R.J., "Bowing of Brick Precast Panels caused by Differential Shrinkage," PCI Journal, submitted.
Saqan, E.I., and Frosch, R.J., "Influence of Flexural Reinforcement on Shear Strength of Prestressed Beams without Web Reinforcement," ACI Structural Journal, Vol. 106, No. 1, January-February 2009, pp. 60-68.
Han, G, and S. Guzey. 2020. Structural Stress Determination at a Hot-Spot, ASME Journal of Pressure Vessel Technology. (accepted).
Spritzer, J.M., H. Bohra, and S. Guzey. 2019. Imperfection-sensitivity of unanchored aboveground open-top steel welded liquid storage tanks subjected to seismic loads. SN Applied Sciences. 1: 1566. doi: 10.1007/s42452-019-1597-7 Link
Chiang Y.-C., and S. Guzey. 2019. Dynamic Analysis of Aboveground Open-Top Steel Tanks Subjected to Wind Loading. Engineering Structures. Volume 198, Article no: 109496 doi: 10.1016/j.engstruct.2019.109496 Link
Azzuni, E., and S. Guzey. 2019. Brittle Fracture Failure Assessment of API 12D Tanks with a Semicircular-topped Rectangular Cleanout and Stepped Shell Design. International Journal of Pressure Vessels and Piping. Volume 175, Article no: 103916 doi:10.1016/j.ijpvp.2019.05.011 Link
Hu, W., Bohra, H., Azzuni, E. and Guzey, S., 2019. The uplift effect of bottom plate of aboveground storage tanks subjected to wind loading. Thin-Walled Structures, 144, p.106241. doi:10.1016/j.tws.2019.106241 Link
Bohra, H., E. Azzuni, S. Guzey. 2019. "Seismic Analysis of Open-Top Storage Tanks with Flexible Foundation", ASME Journal of Pressure Vessel Technology 141(4):041801-041801-15. doi:10.1115/1.4043373 Link
Chiang Y.-C., and S. Guzey. 2019. "Influence of Internal Inward Pressure on Stability of Open-Top Aboveground Steel Tanks Subjected to Wind Loading," ASME Journal of Pressure Vessel Technology 141(3):031204-031204-15 doi:10.1115/1.4042992 Link
Azzuni, E., and S. Guzey. 2019. "Fatigue Evaluation of API 12D Tanks with a Semicircular-Topped Rectangular Cleanout and Stepped Shell Design," International Journal of Pressure Vessels and Piping. 170:19-29. doi: 10.1016/j.ijpvp.2019.01.008 Link
Azzuni, E., and S. Guzey. 2019. "Behavior of Thin Elastic Circular Rings with Large Deformations under Nonuniform Loads," ASME Journal of Pressure Vessel Technology. 141(1):011201-011201-14. doi: 10.1115/1.4041939 Link
Azzuni, E., and S. Guzey. 2018. "Failure Modes of American Petroleum Institute 12F Tanks with a Rectangular Cleanout and Stepped Shell Design," ASME Journal of Pressure Vessel Technology. 140(6):061203-061203-18. doi:10.1115/1.4041340 Link
Azzuni, E., and S. Guzey. 2018. "Failure modes of API 12D tanks with a semicircular-topped rectangular cleanout and stepped shell design," International Journal of Pressure Vessels and Piping. 165:145-163. doi: 10.1016/j.ijpvp.2018.06.010 Link
Azzuni, E., and S. Guzey. 2018. "A perturbation approach on buckling and postbuckling of circular rings under nonuniform loads," International Journal of Mechanical Sciences.137:86-95. doi: 10.1016/j.ijmecsci.2018.01.004. Link
Sun, T., E. Azzuni, and S. Guzey. 2018. "Stability of Open-topped Storage Tanks with Top Stiffener and One Intermediate Stiffener Subject to Wind Loading," ASME Journal of Pressure Vessel Technology. 140(1):011204-011204-14. doi:10.1115/1.4038723. Link
Rondon, A., and S. Guzey. 2017. "Brittle Fracture Assessment of the API Specification 12F Shop Welded Flat Bottom Tanks," International Journal of Pressure Vessels and Piping. 158:69-78. doi: 10.1016/j.ijpvp.2017.10.005. Link
Spritzer, J. M., and S. Guzey. 2017. "Nonlinear Numerical Evaluation of Large Open-Top Aboveground Steel Welded Liquid Storage Tanks Excited by Seismic Loads." Thin-Walled Structures. 119:662-676. doi: 10.1016/j.tws.2017.07.017 Link
Rondon, A., and S. Guzey. 2017. "Failure pressure of the API Specification 12F shop welded, flat bottom tanks", ASME Journal of Pressure Vessel Technology. 139(4):041409-041409-14. doi: 10.1115/1.4036430 Link
Azzuni, E., and S. Guzey. 2017. "Stability of Open Top Cylindrical Steel Storage Tanks: Design of Top Wind Girder." ASME Journal of Pressure Vessel Technology. 139 (3):031207-031207-11. doi:10.1115/1.4035507 Link
Rondon, A., and S. Guzey. 2017. "Fatigue evaluation of the API specification 12F shop welded flat bottom tanks." International Journal of Pressure Vessels and Piping 149:14-23. doi: 10.1016/j.ijpvp.2016.11.003 Link
Spritzer, J. M., and S. Guzey. 2017. "Review of API 650 Annex E: Design of large steel welded aboveground storage tanks excited by seismic loads." Thin-Walled Structures 112:41-65. doi: 10.1016/j.tws.2016.11.013 Link
Rondon, A., and S. Guzey. 2016. "Determination of localized stresses in the shell above anchor bolt chairs attachments of anchored storage tanks." Thin-Walled Structures, 98:617-626. doi: 10.1016/j.tws.2015.11.004 Link
Azzuni, E., and S. Guzey. 2015. "Comparison of the shell design methods for cylindrical liquid storage tanks." Engineering Structures 101:621-630. doi: 10.1016/j.engstruct.2015.07.050 Link
Guzey, S., B. Cockburn, and H. K. Stolarski. 2007. "The embedded discontinuous Galerkin method: Application to linear shell problems." International Journal for Numerical Methods in Engineering 70 (7):757-790. doi: 10.1002/nme.1893 Link
Guzey, S., H. K. Stolarski, B. Cockburn, and K. K. Tamma. 2006. "Design and development of a discontinuous Galerkin method for shells." Computer Methods in Applied Mechanics and Engineering 195 (25-28):3528-3548. doi: 10.1016/j.cma.2005.08.001 Link
Irfanoglu, A., "Using Numerical Simulations and Engineering Reasoning under Uncertainty: Studying the Collapse of WTC-1", Computer-aided Civil and Infrastructure Engineering, accepted for publication, 2010.
Luna, B.N., and Irfanoglu, A., "Estimating Base Shear versus Roof Drift Curves using Earthquake-Response Data", Earthquake Spectra, accepted for publication, 2010.
Korkmaz, K.A., Irfanoglu, A., and Kayhan, A.H., "Seismic Risk Assessment of Buildings in Izmir, Turkey," Natural Hazards, September 2009 (online), 2010 (print).
Miamis, K., Irfanoglu, A., and Sozen, M.A., "Dominant Factor in the Collapse of WTC-1", Journal of Performance of Constructed Facilities, v.23(4):203-208, 2009.
Irfanoglu, A., "Performance of Template School Buildings during Earthquakes in Turkey and Peru", Journal of Performance of Constructed Facilities, v.23(1):5-14, 2009
Irfanoglu, A., and Hoffmann, C.M., "An Engineering Perspective of the Collapse of WTC-I", Journal of Performance of Constructed Facilities. v.22(1):62-67, 2008.
Griffiths, J.H.P., Irfanoglu, A., and Pujol, S., "Istanbul at the Threshold: An Evaluation of the Seismic Risk in Istanbul", Earthquake Spectra, v.23 (1): 63-75, 2007.
Beck, J.L., Chan, E., Irfanoglu, A., and Papadimitriou, C., "Multi-criteria Optimal Structural Design under Uncertainty", Earthquake Engineering and Structural Dynamics, 28:741-761, 1999.
Whalen, T.M., Savage, G.T., and Jeong, G.D., (2004), "An Evaluation of the Self-Determined Probability-Weighted Moment Method for Estimating Extreme Wind Speeds," Journal of Wind Engineering and Industrial Aerodynamics, Vol. 92, pp. 219-239.
Whalen, T.M., Savage, G.T., and Jeong, G.D., (2002), "The Method of Self-Determined Probability Weighted Moments Revisited," Journal of Hydrology, Vol. 268, pp. 177-191.
Ramirez, J.A., Breen, J.E., (1991) "Evaluation of Modified Truss Model for Shear in Reinforced Concrete Beams," ACI Structural Journal, 88 (5); September-October, pp. 562-571.
Aguilar, G., Matamoros, A., Parra-Montesinos, G., Ramirez, J., and Wight, J., (2002), "Experimental Evaluation of Design Procedures for Shear Strength of Deep Reinforced Concrete Beams," ACI Structural Journal, July/August, 99(4), pp. 539-548.
Pujol, S., Sozen, M.A., and Ramirez, J.A., (2006) "Displacement History Effects on Drift Capacity of Reinforced Concrete Columns," ACI Structural Journal, 103(2), 253-262.
Bobet, A., Ramirez, J.A., and Parra-Montesinos, G., (2006) "Performance of the Daikai Subway Station during the Great Hanshin Earthquake," ACI Structural Journal, 103(1), 113-122.
T. Gur, A.C. Pay, J.A. Ramirez, M.A. Sozen, A. M. Johnson, A. Irfanoglu (corr. author), and A. Bobet, "Performance of School Buildings in Turkey during the 1999 Duzce and the 2003 Bingol Earthquakes," (2009), Earthquake Spectra, v. 25 (2): 239-256.
Sneed, L. H. and Ramirez, J. A., "Influence of Effective Depth on the Shear Strength of Concrete Beams Without Shear Reinforcement and Skin Reinforcement - Experimental Study," (2010), ACI Structural Journal, 107(5), pp. 554-562.
Villamizar, S., Ramirez, J.A., and Aguilar, G., "Shear Strength and Behavior of High Strength Concrete Prestressed Beams," (2017), ACI Structural Journal, V.114, No.01, pp. 277-289.
Yeum, C. M., Lund, A. Dyke, S. J., Ramirez, J.A., "Visual data classification in post-event building reconnaissance," (2018), Engineering Structures, Vol 155, p 16-24.
Rachel E. Henkhaus, Sandra Villamizar, and Julio A. Ramirez, "Increase in Coating Thickness of Epoxy Coated Steel Reinforcing Bars for Concrete Deck Replacement," (2020), ACI Materials Journal, September, Vol. 117, No. 5.
Kowalkowski, K.*, and Varma, A.H., (2006) "Structural Properties of Steels Subjected to Multiple Cycles of Damage Followed by Heating Repair," Journal of Structural Engineering, tentatively accepted for publication, ASCE.
Prabhu, M., Varma, A.H.*, Buch, N., and Thandavesvara, D., (2006) "Experimental Evaluation of Dowel Misalignment on Joint Pullout Behavior," Transportation Research Record: Journal of the Transportation Research Board, recommended for publication, TRB, Washington, D.C.
Kowalkowski, K., and Varma, A.H., (2005) "Experimental Investigations of the Effects of Multiple Damage-Heat Straightening Repair Cycles on the Structural Properties of Bridge Steels." Transportation Research Board, recommended for publication, TRB, Washington, D.C.
Varma, A.H., Sause, R., Ricles, J.M., and Qinggang, L., (2005) "Development and Validation of Fiber Models for High Strength Square CFT Beam-Columns." ACI Structural Journal, American Concrete Institute, 102, 1, 73-85, Farmington Hills, MI.
Varma, A.H., Ricles, J.M., Sause, R., and Ream, A., (2004) "Seismic Behavior and Design of High Strength Square Concrete Filled Steel Tube Beam-Columns," Journal of Structural Engineering, ASCE, 130, 2, 169-179.
Varma, A.H., Ricles, J.M., Sause, R., and Lu, L.W., (2002). "Seismic Behavior and Modeling of High Strength Composite Concrete Filled Steel Tube Beam-Columns," Journal of Constructional Steel Research, Elsevier Applied Science, Volume 58, Issue 5-8, pp. 725-758.
National Science Foundation, Collaborative Research: SI2-SSI: Empowering the Scientific Community with Streaming Data Middleware: Software Integration into Complex Science Environments, $42,000 (PI: Tony Fountain from UCSD, July 2012-June 2015).
National Science Foundation - CPS: Medium: Collaborative Research: CyberMech, a Novel Run-Time Substrate for Cyber-Mechanical Systems (PI: Prakash, Co-PI: Dyke, Collaborative with C. Gill, C. Lu, and K. Agrawal) $1,800,000 (Oct 2011-Sept 2015).
Army Research Laboratories, SBIR-Phase 2, Ultra-Low Power Wireless Sensors for Advanced in Situ Structural Health Monitoring, subcontract to Luna Innovations ($158,000, December 2012-January 2015).
National Science Foundation - CPS: Medium: Collaborative Research: Cyber-Physical Co-Design of Wireless Monitoring and Control for Civil Infrastructure (PI: Dyke, Collaborative with G. Agha, C. Lu, B. Spencer)
$340,000 (Oct 2010-Sept 2015).
National Science Foundation - NEESR-SG: Development of Performance-Based Design and Real-time Large-scale Testing Methodologies to Enable Implementation of Smart Damping Systems (PI: Dyke; Co-PIs: J. Ricles, B. Spencer, A. Agrawal, R. Christenson) $1.2 million (September 2008-August 2014).
2016-2017, Simpson, Gumpertz & Heger: Relaxation Testing of Steel Rods.
2016-2019, JTRP/LTAP: Development and Implementation of Concrete Box Beam Risk Assessment and Mitigation Program.
2015-2016, JTRP: Development of a Cost Effective Bridge Preservation and Rehabilitation Program.
2013-2016, JTRP: Guardrails for use on historic bridges.
2012-2015, ACI, PCI, CRSI, Concrete Industry Foundation (CIF): Improved procedures for the design of slender structural concrete columns.
2011-2013, JTRP: Post-tensioning technologies
2011-2013, JTRP: Implementation of performance-based bridge deck protective systems.
2010-2014, JTRP: Increasing Bridge Deck Service Life, Frosch w/ Labi.
2010-2012, JTRP: Reduction of Bridge Construction and Maintenance Costs through Coupled Geotechnical and Structural Design of Integral Abutment Bridges, Frosch w/ Bobet.
2009-2011, JTRP: Development of a Cost-Effective Bridge Preservation and Rehabilitation Program, Frosch w/ Kreger.
2008-2009, JTRP: High Performance Concrete Pavement for Indiana, Frosch.
2008-2012, JTRP/FHWA: Improving the Design of U-Beams for Indiana, Frosch w/ Kreger.
2008-2009, PCI: A New Connection System for Precast Bridge Deck Panels, Frosch.
2007-2011, JTRP: Long-Term Behavior of Integral Abutment Bridges, Frosch.
Middle East Technical University, Seismic Vulnerability Assessment of Select Historic Masonry Buildings in Fatih District of Istanbul, Turkey, Five Months (2010), Irfanoglu.
National Science Foundation, Collaborative Research: the Learning Bridge, 2009-2011, Irfanoglu,
National Science Foundation/NEES Operations, 2010-2014, Irfangolu w/ Ramirez, Fossum, Eigenmann, Hacker, Bahchi and Brophy.
U.S. Department of State & WJE Assoc., Inc., A Study on the Seismic Risk of Four Buildings in Istanbul, Turkey, One month 2009, Irfanoglu.
U.S. Department of State & WJE Assoc., Inc., A Study on the Seismic Risk of Two Buildings in Istanbul, Turkey, Two months 2009, Irfanoglu.
NCHRP Project 12-82 "Developing Reliability-Based Bridge Inspection Practices" PHASE I & II Professor Connor is a Co-PI with Professor Glenn Washer at the Missouri University of Science and Technology. This is PHASE II of the original project, which began in June of 2009 will have tremendous impact on the United States Infrastructure as it will present a new paradigm for the inspection of highway bridges in the United States. Specifically, a reliability-based approach to determine the frequency and scope of inspections is presented that considers bridge design characteristics, age, materials, and existing condition in a systematic analysis process. The framework being researched utilizes a semi-qualitative analysis of various risks and capability factors to provide a practical, implementable methodology that capitalizes on the vast experience and expertise of bridge owners. The proposed approach is flexible and evolutionary such that developing data, methods, and technologies can be incorporated in the future. The capabilities of inspection technologies, including Nondestructive Evaluation (NDE) techniques, for mitigating identified risks and ensuring reliability of the inspection process is also considered in the analysis. This flexible methodology allows bridge owners to identify inspection intervals based on the specific characteristics of the bridge and the intensity of the inspection process. Phase II involves pilot testing the proposed methodologies is three to five states.
TPF- 5(238) Design and Fabrication Standards to Eliminate Fracture Critical Concerns in Two Girder Bridge Systems This is pooled fund study involving FHWA, AISI, Army Corps of Engineers, FHWA, IN, IA, ID, MN, NC, OR, VA, WI. Two girder bridge systems, as well as other non-redundant systems, were developed in the two decade period starting in the 1950's. Unfortunately, knowledge of the fatigue and fracture limit states was not sufficiently advanced to avoid problems in service. Since the 1970s, there have been tremendous advances in materials, fatigue analysis, fracture mechanics, fabrication techniques, and inspection. This project will revisit the concept of Fracture Critical Bridges in the light of the advances that have been made over the last 35 years. In addition, the project will establish guidance that provides a high level of bridge safety that can then form the basis for in-service inspection decisions. The results of the research will be transformative with respect to the steel bridge industry if fully implemented. Dr. William Wright of Virginia Tech is Co-PI on the project.
TPF- 5(253) Evaluation of Member Level Redundancy in Built-up Steel Members This is pooled fund study involving FHWA, AISI, Army Corps of Engineers, FHWA, IA, IN, MN, NY, OR, WI. This study will focus on establishing the fatigue and fracture performance of existing rivet and new bolted built-up bridge components after one of the components fails. The results will be used to establish rational field inspection criteria for these members, develop qualitative assessment and design tools, and result in more economical and robust steel members and bridges.
NCHRP Project 12-87 - Fracture-Critical System Analysis for Steel Bridges Dr. Connor is Co-PI with Professor William Wright of Virginia Tech (VT is the lead institution) on this project. The objectives of this research are to (1) develop a methodology to quantify when a steel bridge system is considered FC based on loads, existing conditions, material properties, and bridge configurations, and (2) recommend AASHTO specifications using the methodology in the design of new bridges and the evaluation of existing bridges.
August 2009-June 2010, Federal Highway Administration & Indiana Dept. of Transportation, Evaluation of Effects of Super-Heavy Loading on the US 41 Bridge Over the Wabash River, Bowman w/ Connor.
April 2008-May 2011, National Academies of Science/NCHRP, Evaluation of Fatigue on the Serviceability of Highway Bridges, Bowman.
July 2006-Sept. 2009, Charles Pankow Foundation: Design Procedure for Dual-Plate Composite Shear Walls, Bowman w/ M. Kreger.
Jan. 2006-Apr. 2008, Federal Highway Administration and Indiana Department of Transportation: Training for Load and Resistance Factor Design (LRFD) of Substructures, Bowman w/ McCullouch.
Oct. 2005-July 2006, Alcoa: Fuselage Panel Fatigue Crack Growth and Residual Strength Test Program, Bowman w/ Grandt.
Aug. 2004-Dec. 2006, Federal Highway Administration and Indiana Department of Transportation: Fatigue Strength of Steel Bridge Members with Intersecting Welds, Bowman.
Aug. 2003-Aug. 2005, Federal Highway Administration and Indiana Department of Transportation: Training for Load and Resistance Factor Design, Bowman w/ McCullouch.
September 2020 - August 2022, EAGER: Joint Hazard Mitigation in the Era of COVID-19: Implications for Engineered Structures and Services, National Science Foundation, In collaboration with Rensselaer Polytechnic Institute, Georgia State University, Purdue University, and Notre Dame University.
September 2019 - August 2024, NASA, Science Technology Mission Directorate STRI: Resilient Extra-Terrestrial Habitat Institute, In collaboration with Purdue University, University of Connecticut, Harvard University, and University of San Antonio.
December 2018 - December 2021, Seismic Evaluation of Indiana Bridge Network and Current Bridge Database for Asset Management, FHWA and INDOT, Purdue University and Notre Dame University
July 2016 - June 2021, Natural Hazards Engineering Research Infrastructure (NHERI) Network Coordination Office (NCO) Center, National Science Foundation, In collaboration with North Carolina State University, Texas Tech University, University of Texas, San Antonio.
October 2009 - September 9 2014, NEES Ops (08-574) Cooperative Agreement CMMI- 0927178, National Science Foundation, In collaboration with Purdue University, University of Texas at Austin, San Jose State University.
December 2006 - November 2012, NEESR-GC: Mitigation of Collapse Risk in Vulnerable Concrete Buildings, National Science Foundation, In collaboration with University of California Berkeley, Purdue University, San Jose State University, and University of California in Los Angeles.
September 2003 - August 2005, Collaborative Research: Demonstration of NEES for Studying Soil-Foundation-Structure Interaction, National Science Foundations, In collaboration with Purdue Univ., U. of Washington, UT, Austin, U. Nevada, Reno, UC, Berkeley, and San Jose State Univ.
July 2006-July 2009, National Institute of Standards and Technology, Realistic Fire Behavior and Stability of Steel Building Structures and Sub-system, Varma.
May 2006-May 2007, Bechtel Power Corporation, Behavior and Design of Modular Steel Plated Composite Walls for Nuclear Facilities, Varma.
January 2006 - April 2008, Evaluation and Verification of Bridge LRFD Design Software, Indiana Department of Transportation.
January 2006 - April 2007, Synthesis Study: Heat Treatment of Steel and Applications for Rehabilitating Steel Bridges in Indiana, Indiana Department of Transportation.
August 2005 - December 2005, Analysis of Modular Composite Sandwich Panel Walls for Nuclear Facilities, Bechtel Nuclear Power Corporation.
January 2004 - July 2006, A Laboratory Evaluation of Alignment Tolerances For Dowel Bars and Their Effect on Joint Opening Behavior, Michigan Department of Transportation, Co-Principal.