Changbum Ahn

Changbum Ahn 

Changbum Ahn
Contact Information:
113 NH
Lincoln: City Campus
(402) 472-7431
cahn2@unl.edu
Email   

Assistant Professor
  • Ph.D. Construction Managment, University of Illinois at Urbana-Champaign, 2012
  • M.S. Earth & Environmental Engineering, Columbia University, 2012
  • M.S.E. Architectural Engineering, Seoul National University, 2008
  • B.S. Architectural Engineering, Seoul National University, 2006

Areas of Research and Professional Interest
  • Achieving sustainable construction using smart sensing technologies
  • Automatic activity recognition of construction equipment and workers using sensors
  • Simulation to estimate the environmental sustainability of construction
  • Life-cycle assessment of civil infrastructure systems
Courses Taught


Experience

Employment:
  • Assistant Professor, Durham School of Architectural Engineering and Construction, University of Nebraska–Lincoln, 2012 – present
  • Project Engineer/ Ph.D. Intern, Turner Construction, 2011 – 2012
  • LEED Development Assistant, U.S. Green Building Council, 2010
  • Internet Service Project Manager, Empas Corp., 2003 – 2005
  • Application Developer, Elconsystem Corp., 2002-2003
Journals:
  • Assistant Specialty Editor in Project Planning and Design, Journal of Construction Engineering and Management, ASCE, 2014-Present
  • Reviewer, Journal of Construction Engineering and Management, ASCE, 2011 – Present
  • Reviewer, Journal of Computing in Civil Engineering, ASCE, 2013 – Present
  • Reviewer, Journal of Management in Engineering, ASCE, 2013 – Present
  • Reviewer, the Canadian Journal of Civil Engineering, CSCE, 2013 – Present
  • Reviewer, Automation in Construction, Elsevier, 2013 – Present
  • Reviewer, Energy Policy, Elsevier, 2013 – Present
  • Reviewer, Journal of Cleaner Production, Elsevier, 2013 – Present
  • Reviewer, KSCE Journal of Civil Engineering, KSCE, 2013 – Present
  • Reviewer, Smart and Sustainable Built Environment, Emerald, 2013 – Present
  • Reviewer, Journal of Construction Engineering and Project Management, KICEM 2011 – Present
  • Reviewer, Visualization in Engineering, SpringerOpen, 2013 – Present
Conferences:
  • Track program committee, Construction Management Track, 2014 International Symposium on Automation and Robotics in Construction and Mining (ISARC)
  • Best Award Committee, Visualization, Information Modeling, and Simulation, 2014 International Conference for Computing in Civil and Building Engineering (ICCCBE)
  • Program Committee, Sustainability Track & Automation and Data sensing Track, 2014 ASCE Construction Research Congress
  • Track program committee, Project mgmt. and Const. track, 2013 Winter Simulation Conference
  • Technical Committee, 2013 ASCE International Workshop on Computing in Civil Engineering
  • Scientific Committee, 2012 International Conference on Construction Applications of Virtual Reality
  • Reviewer, 2012 ASCE Construction Research Congress, 2012
  • Reviewer, 2011 ASCE International Conference on Sustainable Design and Construction, 2011
  • Reviewer, 2010 ASCE Construction Research Congress, 2010
Affiliation:
  • LEED AP Building Design + Construction, US Green Building Certification Institute
  • American Society of Civil Engineers (ASCE)
  • ASCE TCCIT Visualization, Information Modeling and Simulation Committee
  • ASCE TCCIT Data Sensing and Analysis Committee
  • ASCE TCCIT Education Committee
  • Construction Industry Institute (CII)
  • U.S. Green Building Council New York Chapter
  • Fiatech

Honors and Awards

  • NSF Travel Grant for 2014 Construction Engineering Conference, National Science Foundation, 2014
  • Best Paper Award, the International Conference on Construction Engineering and Project Management (ICCEPM)2012, 2013
  • 1st Place Poster Award, the US-Korea Conference on Science, Technology and Entrepreneurship 2013, East Rutherford, NJ, 2013
  • Travel Grant for Construction Research Congress 2012, 2013
  • UIUC Fellowship/Pokrajac Fellowship, University of Illinois at Urbana-Champaign, 2008 - 2009
  • First Place Award in Architectural Engineering Research Forum, Seoul National University, 2005
  • Nongpa Fellowship, A full tuition scholarship for undergraduate studies, given by a private charity, 1998-2002
  • Dean’s List Fellowship, Seoul National University, 1999-2001, 2006

Funding

  • "Measuring Occupants´ Energy Consuming Behaviors in Commercial and Educational Buildings: Occupancy Detecting Approach Based Upon Existing Wireless Network Infrastructure", UNL Research Council Interdisciplinary Grants, Jan 2014 – Dec 2014, $20,000
  • "Construction Safety Hazard Detection through Continuous Monitoring of Construction Workers’ Behavior Using Wearable Wireless Sensor Networks", Nebraska Research Initiatives, July 2013 – June 2015, $99,649.
  • "Recognizing Construction Equipment Activity Using Smartphone as Multi-Sensor Hub", UNL Undergraduate Creative Activity and Research Experience Program, Aug 2013 – Jul 2014, $2,400
  • "Effectiveness Study of UNL's Pneumatic Crack/Joint Preparation Device", Nebraska Department of Roads, Jul 2012 – Mar 2014, $89,916

Selected Publications

Selected Publications:
  • Ahn, C.R., Lee, S., and Peña-Mora, F. (2013) “The Application of Low-Cost Accelerometers for Measuring the Operational Efficiency of a Construction Equipment Fleet.” Journal of Computing in Civil Engineering, ASCE, Reston, VA, 10.1061/(ASCE)CP.1943-5487.0000337 (Jun. 15, 2013).
  • Ahn, C., Lewis, P., Golparvar, M., and Lee, S.(2013) “Toward An Integrated Framework for Estimating, Benchmarking and Monitoring the Environmental Impacts of Construction Operations.” Journal of Construction Engineering and Management, ASCE, Reston, VA, Vol. 139, No. 12, A4013003.
  • Liu, C.R., Ahn, C., An, X., and Lee, S. (2013) “Life Cycle Assessment of Concrete Dam Construction: Comparison of Environmental Impacts Between Rock-Filled and Conventional Concrete.” Journal of Construction Engineering and Management, ASCE, Reston, VA, Vol. 139, No. 12, A4013009.
  • Ahn, C.R., and Lee, S.H. (2013). “Importance of Operational Efficiency to Achieve Energy Efficiency and Exhaust Emission Reduction of Construction Operations.” Journal of Construction Engineering and Management, ASCE, Reston, VA, Vol. 139, No. 4, pp. 404 – 413.
  • Ahn, C.R., Peña-Mora, F., Lee, S.H., and Arboleda, C. (2013). “Consideration of the Environmental Cost in Construction Contracting for Public Works: A+C and A+B+C bidding methods.” Journal of Management in Engineering, ASCE, Reston, VA, Vol. 29, No. 1, pp. 86-94.
  • Park, M., Jang, Y., Lee, H.S., Ahn, C. and Yoon, Y. S. (2012). “Application of Knowledge Management Technologies in Korean Small and Medium-sized Companies.” KSCE Journal of Civil Engineering, Korean Society of Civil Engineers (KSCE), Seoul, Korea, Vol. 17, No.1, pp. 22-32.
  • Ahn, C., Lee, S.H., Peña-Mora, F., and Abourizk, S. (2010). "Toward Environmentally Sustainable Construction Processes: The U.S. and Canada’s Perspective on Energy Consumption and GHG/CAP Emissions." Sustainability, Molecular Diversity Preservation International (MDPI), Basel, Switzerland, Vol. 2, No. 1, pp. 354-370 (Invited Review Paper – Special Issue on Environmental Sustainability and the Built Environment).
  • Park, M., Ahn, C., Lee, H.S., and Hwang, S.J. (2009). “Analysis of the Korean Housing Market Mechanisms and Housing Sales Policies Using System Dynamics.” Korean Journal of Construction Engineering and Management, Korea Institute of Construction Engineering and Management (KICEM), Vol. 10, No. 3, pp. 42 – 52.
  • Park, M., Ahn, C., Lee, H.S., and Lee, K.S. (2009). “A Bottom-up Approach Based Knowledge Management System for Construction Organizations.” Korean Journal of Construction Engineering and Management, Korea Institute of Construction Engineering and Management (KICEM), Vol. 10, No. 2, pp. 3–13.
Peer-Reviewed Conference Publications:
  • Chen, J. Ahn, C.R., and Han. S. (2013). "Detecting the Hazards of Lifting and Carrying in Construction through a Coupled 3D Sensing and IMUs Sensing System." 2014 International Conference for Computing in Civil and Building Engineering (ICCCBE), Orlando, FL, June 23-25, 2014.
  • Jebelli, H. Ahn, C.R., and Stentz. T. (2013). "The Validation of Gait-Stability Metrics to Assess Construction Workers’ Fall Risk." 2014 International Conference for Computing in Civil and Building Engineering (ICCCBE), Orlando, FL, June 23-25, 2014.
  • Chen, J. and Ahn, C.R. (2013). "Assessing Occupants’ Energy-load Variation in Commercial and Educational Buildings: Occupancy Detecting Approach Based upon Existing Wireless Network Infrastructure." Construction Research Congress 2014, Atlanta, GA, May 19-21, 2014.
  • Yang, K., Aria, S., Ahn, C.R., and Stentz, T. (2013). "Automated Detection of Near-miss Fall Incidents in Iron Workers using Inertial Measurement Units." Construction Research Congress 2014, Atlanta, GA, May 19-21, 2014.
  • Liu, C., An, X., Ahn, C.R., and Lee, S. (2013). “Integrated Evaluation of Cost, Schedule and Emission Performance on Rock-filled Concrete Dam Construction Operation using Discrete Event Simulation.” 2013 Winter Simulation Conference, Washington, DC, Dec 8–11, 2013. (Invited Paper)
  • Ahn, C., Lee, S.H., and Pena-Mora, F. (2013). “Accelerometer-based Measurement of Construction Equipment Operating Efficiency for Monitoring Environmental Performance.” ASCE International Workshop on Computing in Civil Engineering, Los Angeles, CA, June 23-25.
  • Ahn, C.R., Lee, S.H., and Pena-Mora, F. (2013). “Construction Equipment Activity Recognition from Accelerometer Data for Monitoring Operational Efficiency and Environmental Performance.” International Conference on Construction Engineering and Project Management 2013, Anaheim, CA, Jan 9-11. (Best Paper Award)
  • Ahn, C.R., Lee, S.H., and Pena-Mora, F. (2012). “Monitoring System for Operational Efficiency and Environmental Performance of Construction Operations, Using Vibration Signal Analysis” Construction Research Congress 2012, West Lafayette, IN, May 21 – 23.
  • Ahn, C., Lee, S.H., and Pena-Mora, F. (2011). “Carbon Emissions Quantification and Verification Strategies for Large-scale Construction projects.” In Proceedings of International Conference on Sustainable Design and Construction (ICSDC), Kansas City, Missouri, USA, March 23–25, 2011.
  • Ahn, C., Lee, S.H., and Pena-Mora, F. (2011). “The opportunities and challenges for contractual consideration of construction-related carbon emissions from civil infrastructure projects.” In Proceedings of the Fourth International Conference on Construction Engineering and Project Management (ICCEPM-2011), Sydney, Australia, February 16-18, 2011.
  • Ahn, C., Pan, W., Lee, S.H., and Pena-Mora, F. (2010). “Lessons learned from utilizing discrete-event simulation modeling for quantifying construction emissions in pre-planning phase.” In Proceedings of the 42th Conference on Winter Simulation, Baltimore, MD, Dec 5, 2010.
  • Ahn, C., Pan, W., Lee, S.H., and Pena-Mora, F. (2010). “Enhanced estimation of air emissions from construction operations based on discrete-event simulation.” The International Conference on Computing in Civil and Building Engineering (ICCCBE) 2010, Nottingham, U.K., Jun 30 - July 2, 2010.
  • Ahn, C., Xie, H., Lee, S.H., Abourizk, S., Pena-Mora, F. A. (2010). “Carbon Footprints Analysis for Tunnel Construction Processes in the Preplanning Phase Using Collaborative Simulation.” Construction Research Congress 2010, Banff, AB, Canada, May 8, 2010.
  • Ahn, C., Rekapalli, P. V., Martinez, J. C., Pena-Mora, F. A. (2009). “Sustainability Analysis of Earthmoving operations.” In Proceedings of the 41th Conference on Winter Simulation, Austin, TX, Dec 13, 2009.
  • Peña-Mora, F., Ahn, C., Golparvar-Fard, M., Hajibabai, L., Shiftehfar, S., An, S., Aziz, Z., Song, S.H. (2009). “A Framework for Managing Emissions during Construction.” International Conference and Workshop on Sustainable Green Building Design And Construction, Cairo, Egypt.
  • Ahn, C., Park, M., Lee, H.S., and Roh, S. (2007). “Project Based Knowledge Management System For Lean Construction.” Proceedings of the 15th annual conference of the International Group for Lean Construction (IGLC), Michigan, USA.
  • Ahn, C., Park, M., Lee, H.S., Roh, S. (2007). “Project-based Knowledge Management System using Blogs.” 23rd International Symposium on Automation and Robotics in Construction (ISARC), Cochin, India, 2007.
  • Kwon, S., Park, M., Lee, H.S., and Ahn, C., (2007). “Measuring Knowledge Management performance of the construction organization.” Korea Institute of Construction Engineering and Management (KICEM) Annual Conference, Busan, Korea.
  • Ahn, C., Park, M., Lee, H.S., Kim, E. (2006). “KMS Building Strategy for Small and Medium-sized General and Special Construction Companies.” Architectural Institute of Korea (AIK) Annual Conference, Daegu, Korea.

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