technical

 

 

Jerome F. Hajjar, Ph.D., P.E.

CDM Smith Professor and Chair

Director, Laboratory for Structural Testing of Resilient and Sustainable Systems (STReSS Laboratory)

Department of Civil and Environmental Engineering

400 Snell Engineering Center

360 Huntington Avenue

Northeastern University

Boston, Massachusetts 02115-5000 USA

617-373-3242 (telephone); 617-373-4419 (fax); jf.hajjar@northeastern.edu


 

STEEL AND COMPOSITE STRUCTURES AT NORTHEASTERN UNIVERSITY

EXPERIMENTAL TESTING, COMPUTATIONAL SIMULATION, AND DESIGN PROCEDURES

BUILDINGS AND BRIDGES; SYSTEMS, MEMBERS AND CONNECTIONS; STRUCTURAL STABILITY

EARTHQUAKE ENGINEERING AND REGIONAL LOSS ASSESSMENT

INFORMATION TECHNOLOGY FOR STRUCTURAL ENGINEERING

Click on the figures and links below for more information about each research and teaching area, or on the links to the left for publications and additional information.

Wikis

Research Wiki

Steel-Concrete Composite Structural Systems

Sustainable Structural Systems with Rocking, Self-Centering, and Articulated Energy-Dissipating Fuses

New Research Results and Publications

Hallowell, S. T., Myers, A. T., Arwade, S. R., Pang, W., Rawal, P., Hines, E., Hajjar, J. F., Qiao, C., Valamanesh, V., Wei, K., Carswell, W., Fontana, C. (2018). “Hurricane RiskAssessment of Offshore Wind Turbines,” Renewable Energy, Vol. 125, September, pp. 234-249. (https://doi.org/10.1016/j.renene.2018.02.090)

Denavit, M. D., Hajjar, J. F., Perea, T., and Leon, R. T.. (2018). “Elastic Flexural Rigidity of Steel-Concrete Composite Columns,” Engineering Structures, Vol. 160, 1 April, pp. 293-303. (https://doi.org/10.1016/j.engstruct.2018.01.044)

Steelman, J. S., Fahnestock, L. A., Hajjar, J. F., and LaFave, J. M. (2018).  “Cyclic Experimental Behavior of Nonseismic Elastomeric Bearings with Stiffened Angle Side Retainer Fuses for Quasi-Isolated Seismic Bridge Response,” Journal of Bridge Engineering, ASCE, Vol. 23, No. 1, January, Paper No. 04017120. (http://dx.doi.org/10.1061/(ASCE)BE.1943-5592.0001170)

Ayers, J. A., Patterson, M. R., Onnis-Hayden, A., Gu, A., Hajjar, J. F., Stojanovic, M., Mueller, A., Myer, M. H., and Ready Containment, LLC (2017). “Robotic Mariculture System,” U.S. Patent and Trademark Office, provisional patent filed.

Bhatia, U., Traylor, A., Moskos, C., Blumenfeld, L., Bressler, L., Hall, T. Clark, K., Deng, N., Kumar, D., Kodra, E., Hajjar, J. F., Flynn, S. E., Koutsopoulos, H., and Ganguly, A. R. (2017).  Climate Hazards and Critical Infrastructures Resilience,” Chapter 3, Section: Climate Change Adaptation, Encyclopedia of GIS, Shekhar, S., Xiong, H., and Zhou, X. (eds.), Springer Link.  (http://dx.doi.org/10.1007/978-3-319-23519-6_1634-3)

Güldür Erkal, B. and Hajjar, J. F. (2017). “Laser-Based Surface Damage Detection and Quantification Using Predicted Surface Properties,” Automation in Construction, Vol. 83, November, pp. 285-302. (http://dx.doi.org/10.1016/j.autcon.2017.08.004)

Saykin, V. V., Nguyen, T. H., Hajjar, J. F., Deniz, D., and Song, J. (2017). “Material Characterization Using Finite Element Deletion Strategies for Collapse Modeling of Steel Structures,” Engineering Structures, Vol. 147, 15 September, pp. 125-133. (http://dx.doi.org/10.1016/j.engstruct.2017.05.059)

Nguyen, T. H., Le, C. H., and Hajjar, J. F. (2017). “Topology Optimization Using the P-version of the Finite Element Method,” Structural and Multidisciplinary Optimization, Vol. 56, No. 3, September, pp. 571-586. (http://dx.doi.org/10.1007/s00158-017-1675-7)

Deniz, D., Song, J., and Hajjar, J. F. (2017). “Energy-based Seismic Collapse Criterion for Ductile Planar Structural Frames,” Engineering Structures, Vol. 141, pp. 1-13. (http://dx.doi.org/10.1016/j.engstruct.2017.02.051)

Peterman, K. D., Kordas, J., Moradei, J., Coleman, K., Der Ananian, J., Webster, M. D., D’Aloisio, J. A., and Hajjar, J. F. (2017). “Thermal Break Strategies for Cladding Systems in Building Structures,” Report to the Charles Pankow Foundation, Charles Pankow Foundation, Vancouver, Washington, May, 356 pp. (report)

Zhou, M., Tao, M.-X., Fan, J.-S., Hajjar, J. F., and Nie, J.-G. (2017). “Experimental Study on Confining-Strengthening, Confining-Stiffening, and Fractal Cracking of Circular Concrete Filled Steel Tubes under Axial Tension,” Engineering Structures, Vol. 133, 15 February, pp. 186-199. (
http://dx.doi.org/10.1016/j.engstruct.2016.12.008)

Carter, C. J. and Hajjar, J. F. (eds.) (2016).  Connections in Steel Structures VIII, Proceedings of the Eighth International Workshop on Connections in Steel Structures, May 25-28, 2016, American Institute of Steel Construction, Chicago, Illinois, ISBN 0-7844-0616-2, 686 pp. (https://www.aisc.org/education/continuingeducation/education-archives/connections-in-steel-structures-viii/#.WsqkiK_rtEY)

Wei, K., Arwade, S. R., Myers, A. T., Hallowell, S., Hajjar, J. F., Hines, E. M., and Pang, W. (2016).  “Toward Performance-based Evaluation for Offshore Wind Turbine Jacket Support Structures,” Renewable Energy, Vol. 97, November, pp. 701-721. (http://dx.doi.org/10.1016/j.renene.2016.06.028)

Denavit, M. D., Hajjar, J. F., Perea, T., and Leon, R. T. (2016). “Seismic
Performance Factors for Moment Frames with Steel-Concrete Composite Columns and Steel Beams,” Earthquake Engineering and Structural Dynamics, Special Issue on Earthquake-Induced Collapse of Structural Systems, Vol. 45, No. 10, August pp. 1685-1703. (http://dx.doi.org/10.1002/eqe.2737)

Denavit, M. R., Hajjar, J. F., Perea, T., and Leon, R. T. (2016).  “Stability Analysis and Design of Composite Structures,” Journal of Structural Engineering, ASCE, Vol. 142, No. 3, March, Paper No. 04015157. (http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0001434)

Guldur, B. and Hajjar, J. F. (2014). “Laser-Based Structural Sensing and Surface Damage Detection,” Report No. NEU-CEE-2014-03, Department of Civil and Environmental Engineering, Northeastern University, Boston, Massachusetts, 375 pp. (report)

Saykin, V. V., Song, J., and Hajjar, J. F. (2014). “A Validated Approach to Modeling Collapse of Steel Structures,” Report No. NEU-CEE-2014-02, Department of Civil and Environmental Engineering, Northeastern University, Boston, Massachusetts, 538 pp. (report)

Denavit, M. D. and Hajjar, J. F. (2014). “Characterization of Behavior of Steel-Concrete Composite Members and Frames with Applications for Design, ,” Report No. NSEL-034, Newmark Structural Laboratory Report Series (ISSN 1940-9826), Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, August, 683 pp. (report)

Eatherton, M. R., Ma, X., Krawinkler, H., Deierlein, G. G., and Hajjar, J. F. (2014).  “Quasi-Static Behavior of Controlled Rocking Steel Frames,” Journal of Structural Engineering, ASCE, Vol. 140, No. 11, November, Paper No. 04014083.  (http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0001005)

Eatherton, M. R., Ma, X., Krawinkler, H., Mar, D., Billington, S., Hajjar, J. F., and Deierlein, G. G. (2014).  “Design Concepts for Controlled Rocking of Self-Centering Steel-Braced Frames,” Journal of Structural Engineering, ASCE, Vol. 140, No. 11, November, Paper No. 04014082. (http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0001047)

Eatherton, M. R. and Hajjar, J. F. (2014).  “Hybrid Simulation Testing of a Self-Centering Rocking Steel Braced Frame System,” Earthquake Engineering and Structural Dynamics, Vol. 43, No. 11, September, pp. 1725-1741. (http://dx.doi.org/10.1002/eqe.2419)

Perea, T., Leon, R. T., Hajjar, J. F., and Denavit, M. D. (2014).  “Full-Scale Tests of Slender Concrete-Filled Steel Tubes:  Interaction Behavior,” Journal of Structural Engineering, ASCE, Vol. 140, No. 9, Paper No. 04014054. (http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0000949)

Szyniszewski, S., Smith, B. H., Hajjar, J. F., Schafer, B. W., and Arwade, S. R. (2014). “The Mechanical Properties of a Sintered, Hollow Sphere, Steel Foam,” Materials and Design, Vol. 54, February, pp. 1083-1094. (http://dx.doi.org/10.1016/j.matdes.2013.08.045)

Hashash, Y., Mwafy, A., Elnashai, A., and Hajjar, J. F. (2012).  “Development of a Multi-Disciplinary Graduate Course on Consequence-Based Earthquake Risk Management,” International Journal of Continuing Engineering Education and Life-Long Learning, Vol. 22, Nos. 1/2, pp. 127-147. (http://dx.doi.org/10.1504/IJCEELL.2012.047039)

Steelman, J. S. and Hajjar, J. F. (2008). “Capstone Scenario Applications of Consequence-Based Risk Management for the Memphis Testbed,” Mid-American Earthquake Center, Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, September. (report)

Steelman, J. S. and Hajjar, J. F. (2008). “Systemic Validation of Consequence-Based Risk Management for Seismic Regional Losses,” Mid-American Earthquake Center, Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, September. (report)

 

RECENT RESEARCH

 

Rapid Automated Damage Detection using Autonomous Robots (RAD2AR)
J. F. Hajjar, T. Padir, P. Boynton, S. Flynn

Rapid Automated Damage Detection using Autonomous Robots (RAD2AR)

Department of Homeland Security; Global Resilience Institute, Northeastern University

July 1, 2017 to December 31, 2018
J. F. Hajjar, A. Myers

Massachusetts Research Partnership:  Development of a National Offshore Wind Research Agenda: 

Massachusetts Clean Energy Center

September 1, 2016 to September 1, 2018
CRISP Type 2:  Identification and Control of Uncertain, Highly Interdependent Processes Involving Humans with Applications to Resilient Emergency Health Response M. Sznaier, A. Abur, L. Barrett, P. Boynton, O. Camps. J. Griffin, J. F. Hajjar, S. Marsella, E. Yeh

CRISP Type 2:  Identification and Control of Uncertain, Highly Interdependent Processes Involving Humans with Applications to Resilient Emergency Health Response

National Science Foundation:  Critical Resilient Interdependent Infrastructure Systems and Processes (CRISP)

August 1, 2016 to July 31, 2019
Steel Diaphragm Innovation Initiative

 

B. Schafer, J. F. Hajjar, M. Eatherton, S. Easterling

Steel Deck Innovation Initiative (SDII):  Transforming Building Structural Resilience Through Innovation in Steel Diaphragms

National Science Foundation, American Institute of Steel Construction, American Iron and Steel Institute, Metal Building Manufacturer's Association, Steel Deck Institute, Steel Joist Institute

September 1, 2015 to December 15, 2020

 

ARIA - NRI Robotics Initiative

S. Singh, B. Akinci, D. Huber, S. Scherer, and J. F. Hajjar

NRI-Large: Fast and Accurate Infrastructure Modeling and Inspection with Low-Flying Robots

National Science Foundation (IIS-1328816)

September 15, 2013 to August 31, 2018

Design for Deconstruction

J. F. Hajjar and M. D. Webster

Deconstructable Systems for Sustainable Design of Steel and Composite Structures

National Science Foundation (CMMI-1200820)

American Institute of Steel Construction (December 30, 2012 to February 28, 2016)

July 1, 2012 to June 30, 2017

Reliability-based Hurricane Risk Assessment for Offshore Wind Farms

A. W. Myers, S. R. Arwade, and J. F. Hajjar

Reliability-based Hurricane Risk Assessment for Offshore Wind Farms

National Science Foundation (CMMI-1234560)

Massachusetts Clean Energy Center (January 1, 2014 to December 31, 2015)

July 1, 2012 to August 31, 2016

Thermal Break Strategies for Cladding Systems in Building Structures

J. F. Hajjar, M. D. Webster, and J. A. D'Aloisio

Thermal Break Strategies for Cladding Systems in Building Structures

Charles Pankow Foundation, American Institute of Steel Construction, American Composite Manufacturers Association and Pultrusion Industry Council

September 1, 2012 to December 31, 2016

Logan Airport

J. Hajjar, P. Boynton, A. Ganguly, M. Ruth, and S. Flynn

Disaster and Infrastructure Resiliency Planning at the Massachusetts Port Authority

Massachusetts Port Authority

July 1, 2013 to June 30, 2014

Structural Collapse (courtesy Midwest Steel 2008)

J. Song and J. F. Hajjar

An Integrated Platform for Validated Prediction of Collapse of Structures

National Science Foundation (CMMI-1000666)

August 16, 2010 to August 15, 2013

 

Steel Foam Research

S. R. Arwade, B. W. Schafer, and J. F. Hajjar

Reconfiguring Steel Structures:  Energy Dissipation and Buckling Mitigation Through the Use of Steel Foams

National Science Foundation (CMMI-0970059)

July 1, 2010 to June 30, 2013

Elastomeric Bearing Under Cyclic Loading

J. F. Hajjar, J. M. LaFave, and L. A. Fahnestock

Calibration and Refinement of Illinois’ Earthquake Resisting System Bridge Design Methodology

Illinois Department of Transportation

January 1, 2009 to December 31, 2012

Buckling-Restrained Brace

J. F. Hajjar

Cyclic Axial Testing of Buckling-Restrained Braces

Nippon Steel & Sumikin Engineering Co., Ltd.

August 1, 2007 to December 31, 2009.

NEESR-SG Controlled Rocking Research

G. G. Deierlein, J. F. Hajjar, H. Krawinkler, and S. Billington

NEESR-SG:  Controlled Rocking of Steel-Framed Buildings with Replaceable Energy Dissipating Fuses

National Science Foundation:  George E. Brown, Jr. Network for Earthquake Engineering Simulation Research (NEESR) (CMMI-0530756), the American Institute of Steel Construction, and industrial sponsors

September 1, 2005 to August 31, 2011

NEES-II Composite Systems Research

R. T. Leon and J. F. Hajjar

NEESR-II:  System Behavior Factors for Composite and Mixed Structural Systems

National Science Foundation:  George E. Brown, Jr. Network for Earthquake Engineering Simulation Research (NEESR) (CMMI-0619047), the American Institute of Steel Construction, and industry sponsors

October 1, 2006 to September 30, 2010

Mid-America Earthquake Center

J. F. Hajjar and B. Goodno

Memphis Testbed Validation and Capstone Scenarios

National Science Foundation:  Mid-America Earthquake Center (EEC-9701785)

October 1, 2005 to September 30, 2008

Bridge Research

J. F. Hajjar and R. J. Dexter

Load Rating by Load Testing on Bridges

Minnesota Department of Transportation, November 1, 1994 to October 31, 2006

Concrete-filled Steel Tubes

J. F. Hajjar

Performance Assessment and Performance-Based Design Methodology for Composite Construction with Application to Concrete-Filled Steel Tube Structural Systems

National Science Foundation (CMS-0084848)

September 15, 2000 to August 31, 2006

NEES research

French, C. W., Schultz, A. E., Hajjar, J. F., Shield, C. K., Ernie, D. W., Du, D. H. C., and Dexter, R. J.

A System for Multi-Axial Subassemblage Testing (MAST)

National Science Foundation:  George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) (CMS-0086602)

January 1, 2001 to September 30, 2005

 

 

For Academia: Research, Teaching, and Service may be viewed on several topics in steel and composite steel/concrete building and bridge structures, structural mechanics and analysis, and regional loss assessment. See Publications, Courses and Advising, Sponsored Research, Current Research, and Professional Activities in the menu to the left.


For Engineering Practice: Consulting Services are available for steel and composite steel/concrete building and bridge structures. Specialites include both steel and composite structural systems for seismic and non-seismic design, steel and composite beam-column design, structural stability (including all new provisions of the AISC Specification), all forms of linear and nonlinear structural analysis, and analysis, design, and rating of curved girder and skew support bridges. See Professional Licensure and Consulting, Professional Experience, and Professional Activities in the menu to the left.

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Last modified: January 2, 2018
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