CEE Faculty Profile

Research Interests

• Structural concrete and masonry
• High performance concrete for prestressed concrete bridges
• Self-compacting concrete
• Repair and rehabilitation of bridges and buildings
• Earthquake resistant design and retrofit

Education

• Ph.D., Civil Engineering, University of Michigan, Ann Arbor, 1976.
• M.S., Civil Engineering, University of Illinois, Champaign-Urbana, 1967.
• B.S., Civil Engineering, Stanford University, 1966.

Honors

1. ASTM, Outstanding Article in the Journal of Testing and Evaluation: Garas, Victor; Kahn, Lawrence; and Kurtis, Kimberly; “Tensile Creep Test of Fiber-Reinforced Ultra-High Performance Concrete,” Journal of Testing and Evaluation, Vol. 38, No. 6, American Society of Testing and Materials (www.astm.org) paper JTE102666, June 2010.
2. Best Paper award, TMS Journal, (2007) for the paper “Effective Pier Model for the Nonlinear In-Plane Analysis of Individual URM Piers,” The Masonry Society Journal, vol. 23, n. 1, December 2005, authored by Yi, Tianyi; Moon, Frank; Leon, Roberto; and Kahn, Lawrence.
3. The Masonry Society, President’s Award, May 2006
4. Elected Fellow, The Masonry Society, May 2006
5. Institute Outstanding Professional Education Award, April 2005
6. Outstanding Doctoral Thesis, presented by The Masonry Society to Dr. Franklin Moon with Drs. Lawrence Kahn and Roberto Leon, Advisors, October 2004
7. Outstanding Paper Award, authored by Moon, Frank; Yi, T.; Leon, R.T.; and Kahn, L.F.; 9th North American Masonry Conference, June, 2003
8. ANAK Award, Institute wide award for outstanding professor given by ANAK Honor Society, 2003
9. Outstanding Professor in Civil Engineering, Georgia Tech (voted by ASCE student chapter), 1978, 1979, 1981, 1993 and 1995.
10. Composite Institute "Best Paper" with Dr. Abdul Zureick and Mr. B. J. Bandy, 1994
11. Elected ACI Georgia Section "Distinguished Chapter Member", 1994
12. Nominated, Outstanding Teacher Award, 1990
13. Who's Who in Engineering
14. Elected Fellow of the American Concrete Institute, 1983
15. Raymond C. Reese Research Prize, ASCE, 1980
16. Outstanding Graduate Student in Civil Engineering, University of Michigan, 1975
17. Sigma Xi Honor Fraternity, 1975
18. Chi Epsilon Honor Fraternity, 1975 (Elevated to Honor Member Georgia Tech 2011)
19. Rackham Doctoral Fellowship, University of Michigan, 1975
20. National Science Foundation Traineeship, 1971
21. Graduation "With Distinction", Stanford University, 1966

Articles

1. Hurff, Jonathan, and Lawrence Kahn; “Lateral-Torsional Buckling of Structural Concrete Beams: Experimental and Analytical Study,” Journal of Structural Engineering, ASCE, Vol. 138, No. 9, Sept. 2012, pp. 1138-1148
2. Hurff, Jonathan, and Lawrence Kahn; “Rollover Stability of Precast, Prestressed Concrete Bridge Girders with Flexible Bearings,” PCI JOURNAL, Vol. 57, No. 4, Fall 2012, pp. 96-107
3. Mezencevova, A; N.N. Yeboah, S.E. Burns, L.F. Kahn and K.E. Kurtis; “Utilization of Savannah Harbor River Sediment as the Primary Raw Material in Production of Fired Brick,” Journal of Environmental Management, Vol 113, Academic Press pp. 128-138
4. Moser, Robert D., Preet M. Singh, Lawrence F. Kahn, Kimberly E. Kurtis; “Chloride-Induced Corrosion Resistance of High-Strength Stainless Steels in Simulated Alkaline and Carbonated Concrete Pore Solutions,” Corrosion Science, Vol. 57, April 2012, pp 241-253
5. Moser, Robert D., Preet M. Singh, Lawrence F. Kahn, Kimberly E. Kurtis; “Chloride-Induced Corrosion of Prestressing Steels Considering Crevice Effects and Surface Imperfections,” CORROSION, Vol 67, No. 6, June 2011
6. Lopez, M.; Kahn, L.F.; and Kurtis, K.E.; “High-strength Self-curing Low-shrinkage Concrete for Pavement Applications,” International Journal of Pavement Engineering, Vol. 11, No. 5, Taylor & Francis, July 2010, pp. 333-342 http://dx.doi.org/10.1080/10298436.2010.488731
7. Garas, Victor; Kahn, Lawrence; and Kurtis, Kimberly; “Tensile Creep Test of Fiber-Reinforced Ultra-High Performance Concrete,” Journal of Testing and Evaluation, Vol. 38, No. 6, American Society of Testing and Materials (www.astm.org) paper JTE102666, June 2010.
8. Garas, V.Y., A.R. Jayapalan, L.F. Kahn, and K.E. Kurtis, “Multi-Scale Investigation of the Effect of Thermal Treatment on the Tensile Creep of Ultra-high Performance Concrete: Preliminary Assessment”, /Transportation Research Record/, 2010, No. 2141, VI:82-88.
9. Lopez, Mauricio; Kahn, Lawrence F.; and Kurtis, Kimberly E.; Characterization of Elastic and Time-dependent Deformations in High Performance Lightweight Concrete by Image Analysis,” Cement and Concrete Research, Elsevier Press, 2009
10. Garas, Victor Y.; Kahn, Lawrence F.; and Kurtis, Kimberly E.; “Short-term tensile creep and shrinkage of ultra-high performance concrete,” Cement and Concrete Composites, Vol. 31, No. 3, 2009, pp. 147-152
11. Yi, Tianyi; Moon, Franklin; Leon, Roberto; and Kahn, Lawrence; “Flange Effects on the Nonlinear Behavior of URM Piers,” TMS Journal, The Masonry Society, V. 26, No. 2, November 2008 pp. 31-42
12. Lopez, Mauricio; Kahn, Lawrence F.; Kurtis, Kimberly E.; “Effect of Internally Stored Water on Creep of High Performance Concrete,” ACI Materials Journal, V. 105, No. 3, May-June 2008, pp. 265-273
13. Kahn, Lawrence; “ACI Code requirements for Repair of Buildings,” ACI Concrete International, V. 30, No. 4, April 2008, pp 41-44
14. Moon, Frank; Yi, Tianyi; Leon, Roberto; and Kahn, Lawrence; “Testing of a Full-Scale Unreinforced Masonry Building Following Seismic Retrofit,” ASCE Structural Journal, Vol. 132, No. 9, September 2007
15. Lopez, M.; Kahn, L.F.; and Kurtis, K.E.; “Characterization of Elastic and Time-dependent Deformations in Normal Strength and High Performance Concrete by Image Analysis,” Cement and Concrete Research, August 2007, V.37, pp1265-77.
16. Yi, T.; Moon, F.L.; Leon, R.T.; and Kahn, L.F.; “Lateral Load Tests on a Two-Story Unreinforced Masonry Building,” ASCE Journal of Structural Engineering, Vol. 132, No. 5, May 2006, pp. 643-652
17. Yi, T.; Moon, F.L.; Leon, R.T.; and Kahn, L.F.; “Analyses of a Two-Story Unreinforced Masonry Building,” ASCE Journal of Structural Engineering, Vol. 132, No. 5, May 2006, pp. 653-662
18. Moon, F.L.; Yi, T.; Leon, R.T.; and Kahn, L.F.; “Recommendations for the Seismic Evaluation and Retrofit of Low-Rise URM Structures,” ASCE Journal of Structural Engineering, Vol. 132, No. 5, May 2006, pp. 663-672
19. Yi, Tianyi; Moon, Frank; Leon, Roberto; and Kahn, Lawrence; “Effective Pier Model for the Nonlinear In-Plane Analysis of Individual URM Piers,” The Masonry Society Journal, vol. 23, n. 1, December 2005, pp. 21-35
20. Kahn, Lawrence, and Lopez, Mauricio; “Prestress Losses in High Performance Lightweight Concrete Pretensioned Bridge Girders” PCI JOURNAL, v. 50, no. 5, Sept-Oct 2005 pp. 84-95
21. Lopez, Mauricio; Kahn, Lawrence; and Kurtis, Kimberly; “Internal Curing in High Performance Concretes – a New Paradigm,” Revista Ingenieria de Construccion, Vol 20. No. 2, Agusto 2005, pp. 117-126
22. Engindeniz, Murat; Kahn, Lawrence; and Zureick, Abdul-Hamid; “Repair and Strengthening of Reinforced Concrete Beam-Column Joints: State-of-the-Art,” ACI Structural Journal, Vol. 102, No. 2, March-April 2005, pp. 187-197
23. Thaesler, Patricia; Kahn, Lawrence F.; Oberle, Rita; and Demers, Cornelia E.; “Durable Repairs on Marine Bridge Piles,” ASCE Journal of Performance of Constructed Facilities, Vol. 19, No. 1, Feb. 2005, pp. 88-92
24. Lopez, Mauricio; Kahn, Lawrence; and Kurtis, Kimberly; “Creep and Shrinkage of High Performance Lightweight Concrete,” ACI Materials Journal, V. 101, No. 5, Sept/Oct. 2004, pp. 391-399
25. Kahn, Lawrence F., and Slapkus, Adam, “Interface Shear in High Strength Composite Beams,” PCI JOURNAL, V. 49, No. 4, July/August 2004, pp. 102-110.
26. Kahn, L.F.; Dill, J.C.; and Reutlinger, C.G.; “Transfer and Development Length of 15-mm Strand in HPC Girders,” ASCE Journal of Structural Engineering, vol. 128, n. 7, July 2002, pp. 913-921
27. Kahn, Lawrence. F., and Mitchell, Andrew D.; Shear Friction Tests with High Strength Concrete, ACI Structural Journal, V. 99, No. 1, January-February 2002, pp. 98-103
28. Meyer, Karl F., and Kahn, Lawrence F., “Lightweight Concrete Reduces Weight and Increases Span Length of Pretensioned Concrete Bridge Girders,” PCI JOURNAL V. 47, No. 1, January-February 2002, pp. 68-75
29. Kahn, L. F., and Saber, Aziz, “Analysis and Structural Benefits of High-Performance Concrete for Pretensioned Bridge Girders,” PCI JOURNAL, v.45, n. 4, July-August 2000.
30. Zureick, A.; Kahn, L.F.; and Bandy, B.J.; "Tests on Deep I-Shape Pultruded Beams," Journal of Reinforced Plastics and Composites, vol. 14, n. 4, April 1995, pp. 378-389.
31. Kahn, L.F., and Meyer, K.F.; "Rectangular Stress Block for Non-Rectangular Compression Zone," ACI Structural Journal, vol. 92, n. 3, American Concrete Institute, May-June 1995, pp. 44-52.
32. Kahn, Lawrence F. and Turner, Scott E.; "Evaluation of the Flatjack Test of Brick Masonry," The Masonry Society Journal, v 13, n 2, February 1995, pp. 37-44.
33. Zureick, A., Kahn, L., and Bandy, B.; "Tests on Deep I-Shape Pultruded Beams," Journal of Reinforced Plastics and Composites, Vol. 14, 1994, pp. 588-617
34. L. F. Kahn, "Shotcrete Strengthening of Brick Masonry Walls", Concrete International: Design and Construction; Vol. 6, No. 7, July 1984, pp. 34 40.
35. L. F. Kahn and M. H. Swanger, "A Large Scale, Integrated Reinforced Concrete Design System," Concrete International: Design and Construction, Vol. 4, No. 11, November 1982 pp. 7 15.
36. L. F. Kahn, "Civil Engineering Education and the Prestressed Concrete Industry," Journal of the Prestressed Concrete Institute, Vol. 25, No. 5, September October, 1980.
37. L. F. Kahn, K. M. Will, and P. H. Sanders, "Strengthening of Existing Bridges Using Epoxy Injection," TRB Record 711, Transportation Research Board, pp. 47 48, 1979.
38. L. F. Kahn and R. D. Hanson, "Infilled Shear Walls for Earthquake Strengthening," Journal of the Structural Division, ASCE, Vol. 105, No. ST2, February 1979, pp. 283 296.
39. L. F. Kahn and R. D. Hanson, "Inelastic Cycles of Axially Loaded Steel Members," Journal of the Structural Division, ASCE, Vol. 102, No. ST5, May 1976, pp. 947 960.
40. L. F. Kahn, W. H. Townsend, and M. J. Kaldjian, "Ferrocement Steel Plate Composite Beams," Journal of the American Concrete Institute, Vol. 72, No. 3, March 1975, pp. 94 97.
41. H. H. Haynes, and L. F. Kahn, "Undersea Concrete Spherical Structures," Journal of the American Concrete Institute, Vol. 70, No. 5, May 1973, pp. 337 340.
42. H. H. Haynes, L. F. Kahn, and J. D. Stachiw, "Concrete Hulls for Undersea Applications," Journal of the Structural Division, ASCE, Vol. 97, No. ST4, April 1971, pp. 1283 1303.

Books

1. Zureick, A. and Kahn, L., “Fiber-Reinforced Polymer Composite Materials for Rehabilitation of Reinforced Concrete Structures,” Chapter in Engineered Materials Handbook, Volume 1, Composites, ASM International, Phoenix, 2001
2. Sabnis, Gajanan M.; Shroff, Avanti C.; and Kahn, Lawrence F., ed.; Seismic Rehabilitation of Concrete Structures, SP-160, American Concrete Institute, Detroit, MI, 1996, pp. 318

Proceedings

1. Schuetz, Daniel, L. Kahn, K. Kurtis, P.Singh, and R. Moser; “Preliminary Studies of the Mechanical Behavior of High-Strength Stainless Steel Prestressing Strands,” Proceedings PCI Convention and National Bridge Conference, Nashville, TN Sept 29-Oct 2, Paper #70
2. R.D. Moser, Kahn, L.F., Singh, P.M., Kurtis, K.E.; “Preliminary Studies of High-Strength Stainless Prestressing Steels,” ACI SP: Hope & Schupack Corrosion Symposium, ACI Convention, March 2012.
3. Crane, Kennan and Kahn, L.F.; “Interface Shear Capacity of Small UHPC/HPC Composite Beams”, 3rd International Symposium on Ultra-high Performance Concrete, Universitat Kassel, Kassel, Germany, March 7-9, 2012
4. Mezencevove, Andrea; N Yeboah, A. Crotty, S. Burns, L. Kahn, and K.Kurtis; “Assessment of Bricks Produced from Savannah River Sediment: Case Study in 100% Recycled Content Brick,” Proceedings 11th North American Masonry Conference, Minneapolis, MN, June 5-8, 2011
5. Gentry, T.R., T. Al-Haddad, A. Cavieres, and L Kahn; “Structural Analysis and Design of Non-planar Corbeled Concrete Masonry Walls,” Proceedings 11th North American Masonry Conference, Minneapolis, MN, June 5-8, 2011 pp. 12
6. Holland, Brett, and Kahn, Lawrence; “High Strength Lightweight Concrete Properties of I-85 Ramp over State Route 34,” HPC Bridge Views, Issue 61, Federal Highway Administration, May-June 2010 [www.hpcbridgeviews.com] pp. 4-8
7. Hurff, Jonathan, and Kahn, Lawrence; “Lateral-Torsional Buckling Experiments On Rectangular Prestressed Concrete Beams,” submitted to the PCI-fib 3rd International Congress, Washington D.C., May 2010
8. Holland, R.B., Dunbeck, J. and Kahn, L.F., “Elastic Modulus Estimation For Lightweight High Strength Concrete Precast Prestressed Bridge Girders,” submitted to the PCI-fib 3rd International Congress, Washington D.C., May 2010
9. Moser, Robert; Hoeke, Lisa; Singh, Preet; Kahn, Lawrence; and Kurtis, Kimberly; “Corrosion of Steel Girder Bridge Anchor Bolts,” submitted to Proceedings of Transportation Research Board Meeting, Washington D.C., January 2009
10. Moser, Robert; Hoeke, Lisa; Singh, Preet; Kahn, Lawrence; and Kurtis, Kimberly; “Degradation Of Steel Girder Bridge Bearing Systems By Corrosion”, submitted to National Association of Corrosion Engineers, annual meeting, Atlanta, GA, February 2009
11. Garas, V. Y.; Kahn, L. F.; and Kurtis, K. E.; “Preliminary investigation of the effect of steel fibers on the tensile creep and shrinkage of ultra-high performance concrete,” Proceedings 8th International Conference on Creep, Shrinkage and Durability Mechanics of Concrete and Concrete Structures, Ise-shima, Japan, 30 Sept – 2 Oct., 2008, Tanabe et al. (editors) CRC Press, Taylor & Francis Group, London 2009 pp 741-744
12. Engindeniz, M., Kahn, L.F., and Zureick, A-H., “Performance of an RC Corner Beam-Column Joint Severely Damaged under Bidriectional Loading and Rehabilitated with FRP Composites,” SP-258 Ed. T. Alkhrdaii and P. Silva, American Concrete Institute, Farmington Hills, MI 2008, pp. 19-36
13. Engindeniz, Murat; Kahn, Lawrence F.; and Zureick, Abdul-Hamid; “Pre-1970 RC Corner Beam-Column-Slab Joints: Seismic Adequacy and Upgradability with CFRP Composites,: Proceedings of 14th World Conference on Earthquake Engineering, Beijing, China, October 12-17, 2008
14. Kahn, Lawrence; “ACI Code Requirements for Repair of Buildings,” Concrete International, V. 30, No. 4, American Concrete Institute, Farmington Hills, MI, April 2008, pp. 51-54
15. Kahn, Lawrence F.; and Kelly, Patrick J. “Bearing Zone Cracking of Precast Prestressed Girders Due To Sliding Friction,” Proceedings of PCI National Bridge Conference, Phoenix, AZ, October 2007
16. Kahn, Lawrence F., and Kurtis, Kimberly E.; “Self-Consolidating Concrete in Congested Sections: Mix Characteristics and Assessment of Performance,” Proceedings of PCI National Bridge Conference, Phoenix, AZ, October 2007
17. Engindeniz, Murat; Kahn, Lawrence F.; And Zureick, Abdul-Hamid; “Bidirectional Loading Of Pre-1970 RC Corner Beam-Column Joints before and after Rehabilitation with CFRP Composites,” Proceedings 6th National Conference on Earthquake Engineering, Istanbul, Turkey, Oct 16-20, 2007
18. Meyer, K. F.; Buchberg, B. S.; and Kahn, L. F.; “High Strength Lightweight Concrete for Application in Highway Girders”, 7th CANMET/ACI International Conference on Durability of Concrete Technology, SP-234, June 2006, pp. 681-702
19. Lopez, M.; Kurtis, K.E.; and Kahn, L.F.; “ Pre-wetted Lightweight Coarse Aggregate Reduces Long-term Deformations of High-Performance Lightweight Concrete”, 7th CANMET/ACI International Conference on Durability of Concrete Technology, SP-234, June 2006, pp. 661-680
20. Saber, Aziz; and Kahn, Lawrence F.; “Stability of Long-Span Pretensioned High Performance Concrete Girders,” Proceedings ACI 7th International Symposium on Utilization of High-Strength/High Performance Concrete, Washington D.C., June 2005, pp. 333-350
21. Lopez, M., Kahn, L.F., Kurtis, K.E., Buchberg, B.S.; “Long-Term Creep and Shrinkage in High-Strength Lightweight Concrete” Proceedings ACI Shrinkage and Creep of Concrete (SP-227), New York, New York, 2005. pp. 317-336
22. Meyer, Karl F., and Kahn, Lawrence, “Shear Behavior of Pretensioned Girders Constructed with Slate High Strength Lightweight Concrete,” Proceedings PCI National Bridge Conference, Atlanta, Oct.17-20, 2004, pp. 15
23. Meyer, Karl F., and Kahn, Lawrence, “Transfer and Development Length of Pretensioned Girders Constructed with Slate High Strength Lightweight Concrete,” Proceedings PCI National Bridge Conference, Atlanta, Oct.17-20, 2004, pp. 16
24. Griffin, Marvin; Kahn, Lawrence; and Lopez, Mauricio; “Deck Contraction Induced Deflection in a High Performance Concrete Bridge,” Proceedings PCI National Bridge Conference, Atlanta, Oct.17-20, 2004, pp. 30
25. Meyer, K. F.; and Kahn, L. F.; “Transfer and Development Length of 0.6-inch Strand in High Strength Lightweight Concrete,” High Performance Structural Lightweight Concrete, SP-218, (Ed. John Ries and Thomas Holm), American Concrete Institute, Detroit, MI, April 2004, pp. 9-27
26. Meyer, Karl F.; Buchberg, Brandon; and Kahn, Lawrence F.; “Development Of High Strength Lightweight Concrete Mix Designs: A Practical Approach,” Proceedings PCI 2nd Annual Bridge Conference, Orlando, FL, October 2003
27. Lopez, Mauricio; Kurtis, Kimberly, and Kahn, Lawrence; “Creep Strain Distribution and Deformation Mechanisms of High Performance Lightweight Concrete,” Proceedings of Advances in Cement and Concrete (Ed. David A. Lange, Karen Scrivener and Jacques Marchand), University of Illinois, Urbana-Champaign, IL, August 2003, pp. 423-428
28. Lopez, Mauricio; Kurtis, Kimberly; and Kahn, Lawrence; “Creep Strain Distribution and Deformation Mechanisms of High Performance Lightweight Concrete,” Proceedings Conference on Advances in Cement & Concrete, Cooper Mountain, CO., August 2003
29. Moon, Frank; Yi, Tianyi; Leon, Roberto; and Kahn, Lawrence; “Large-Scale Tests of an Unreinforced Masonry Low-Rise Building,” Proceedings 9th North American Masonry Conference, Clemson, SC, June 2003, pp. 755-766
30. Yi, Tianyi; Moon, Frank; Leon, Roberto; and Kahn, Lawrence; “Structural analysis of a Prototype Unreinforced Masonry Low-Rise Building,” Proceedings 9th North American Masonry Conference, Clemson, SC, June 2003, pp. 743-754
31. Slapkus, Adam; and Kahn, Lawrence F.; “Georgia’s High Performance Concrete Highway Bridge,” Proceedings Concrete Bridge Conference, Prestressed Concrete Institute, Nashville, TN., October 6-9, 2002
32. Yi, T.; Moon, F.; Leon, R.; and Kahn, L.; “Performance Characteristics on Unreinforced Masonry Low-Rise Structure Before and After Rehabilitation,” 7th US National Conference on Earthquake Engineering, EERI, Boston, MA 2002
33. Kahn, Lawrence F., "Build on Strengths of Existing CAE Software: the GTSTRUDL Example," Proceedings Lateral and Rotational Stiffness of Highway Bridges, Federal Highway Administration, Bridge Division, June 1993, pp. 43-53
34. Durrani, Amir, and Kahn, Lawrence, "Flexural Analysis of Prestressed Concrete Beams, A Spreadsheet Application," Proceedings: Spreadsheets for Concrete Design, COM 4 (1989), American Concrete Institute, Detroit, Michigan, 1989.
35. Kahn, Lawrence F. and Montiel, Ernesto; "Shear Design of Prestressed Concrete Beams," Proceedings: Spreadsheets for Concrete Design, COM 4 (1989), American Concrete Institute, Detroit, Michigan, 1989
36. Kahn, L.F. and Rush, Martin, "Reinforced Concrete Design with GTSTRUDL" Proceedings Singapore Concrete Institute Convention, Singapore, March 1987
37. L. F. Kahn, "Shotcrete Retrofit for Unreinforced Brick Masonry", Proceedings Eight World Conference on Earthquake Engineering, Vol. 1, San Francisco 1984, pp. 583 590.
38. L. F. Kahn, "Seismic Retrofit", Proceedings of the Workshop on the 1886 Charleston Earthquake and Its Implications for Today, USGS, Reston, Virginia, May 1983.
39. L. F. Kahn, "Development of Seismic Design Provisions for the City of Atlanta," Proceedings Earthquakes and Earthquake Engineering: the Eastern United States, Knoxville, Tennessee, September 1981.
40. L. F. Kahn, "Repair and Strengthening of Masonry, " Proceedings 2nd Joint Meeting of U.S./Japan Cooperative Research Program on Repair and Retrofit, Building Research Institute, Tsukuba, Japan, May 1981.
41. M. H. Swanger and L. F. Kahn, "Computer Aided Design of Reinforced Concrete Structures," Proceedings of the ASCE/International Conference on Computing in Civil Engineering, New York, May 1981.
42. "Guide for Repair of Concrete Bridge Superstructures," by ACI Committee 546, Concrete International Vol. 2, No. 9, American Concrete Institute, Detroit, September 1980, pp. 69 88.
43. L. F. Kahn, "Strengthening of Existing RC Columns for Earthquake Resistance," Proceedings of the 7th World Conference on Earthquake Engineering, Vol. 7, No. 327, Istanbul, Turkey, September 1980.
44. “Repair and Strengthening of Old Steel Truss Bridges,” Task Committee on Strength of Old Truss Bridges, ASCE, New York, 1979 pp. 137
45. “Repair and Strengthening of Old Steel Truss Bridges,” Task Committee on Strength of Old Truss Bridges, ASCE, New York, 1979 pp. 137
46. L. F. Kahn, "Strengthening of Reinforced Concrete Columns for Earthquake Resistance," Proceedings Fifth National Meeting of the Universities Council for Earthquake Engineering Research, Massachusetts Institute of Technology, June 1978.
47. L. F. Kahn and R. D. Hanson, "Reinforced Concrete Shear Walls for Aseismic Rehabilitation," Proceedings of the 6th World Conference on Earthquake Engineering, New Delhi, India, 1977.
48. L. F. Kahn and R. D. Hanson, "Inelastic Cyclic Behavior of Axially Loaded Steel Members," Proceedings of the 4th Japan Earthquake Engineering Symposium, November 1975, pp. 959 966.
49. H. H. Haynes and L. F. Kahn, "Experimental Studies on Concrete Spherical Shells Under Hydrostatic Loading," Proceedings on the International Association for Shell Structures Symposium Hydromechanically Loaded Structures, Part I Honolulu, Hawaii, October 1971.
50. L. F. Kahn and H. H. Haynes, "Undersea Concrete Habitats," Ocean Industry, Vol. 5, No. 10, October 1970, pp. 27 29.

Patents

1. PadCaps for Concrete Cylinder Testing@, disclosure to Georgia Institute of Technology, 1996.
2. Fiber Reinforced Plastic Membrane for Bridge Deck Reinforcement, disclosure to Georgia Institute of Technology, 1993.
3. Facility and Method for Seafloor Storage and Supply of Bulk Fuel, with Harvey H. Haynes and Norman D. Albertsen, U.S. Patent No. 4,007,700, 1977.
4. "Underwater In situ Placement of Concrete," U.S. Patent No. 3,745,775, 17 July 1973.
5. Damping Shear Wall for Earthquake Resistant Construction, Disclosure to the University of Michigan, 1972.
6. Undersea Pressure Differential Connector, U.S. Patent No. 3,704,679, 5. with Harvey H. Haynes and Roger Hoofnagle, 1972.

Presentations

1. Identification of Reinforced Concrete Failure Modes Using Linear Elastic Finite Element Analysis, James B. Deaton and Lawrence F. Kahn, ASCE 6th Congress on Forensic Engineering, San Francisco, October 31, 2012
2. Development of ACI’s Repair Code – ACI 562, ACI Convention, Oct. 22, 2012
3. Ultra-high Performance Concrete (UHPC) and its Application for Bridge Structures, Structural Engineering Institute, Georgia Section, Sept. 22, 2011
4. Kahn, Lawrence F.; Kesner, Keith E.; and Poston, Randall W.; “ACI Concrete Repair Code,” ACI Convention, Chicago, IL March 19, 2010
5. Responder, The Duomo of Stanta Maria del Fiore: The Legacy of Its Construction, College of Architecture Dean’s Symposium, February 9, 2008
6. “Bearing Zone Cracking of Precast Prestressed Girders Due To Sliding Friction,” PCI National Bridge Conference, Phoenix, AZ, October 2007
7. “Self-Consolidating Concrete in Congested Sections: Mix Characteristics and Assessment of Performance,” PCI National Bridge Conference, Phoenix, AZ, October 2007
8. “Self Consolidating Concrete and an Update on Bridge Structures Research”, Georgia Partnership in Transportation Quality,” Georgia DOT, University of Georgia, Athens, GA, December 8-9, 2005
9. “Self Consolidating Concrete – Laboratory and Field Results”, PCI Workshop on SCC, Charlotte, NC, December 1, 2005
10. “Strengthening of Concrete Structures,” ACI Spring Convention, New York, NY April 2005
11. “Overview of Prestressed Concrete Research for Georgia DOT,” PCI National Bridge Conference, Atlanta, GA, Oct. 18, 2004
12. “Prestressed Concrete Bridge Research in Georgia”, PCI and Georgia DOT Workshop, Atlanta, GA, March 25, 2004
13. Georgia’s High Performance Concrete Highway Bridge, with Adam Slapkus, PCI Concrete Bridge Conference, Nashville, TN, October 8, 2002
14. High Performance, Lightweight Concrete for Georgia Bridges, ACI Georgia Chapter Skipper Memorial Seminar, June 27, 2002
15. Structural Repair of Corroded Reinforcement, ACI Annual Convention, Detroit, Michigan, April 2002
16. Seismic Strengthening Test on Full Size Brick Masonry Structure, Annual Meeting of The Masonry Society, St. Louis, MO, October 13, 2001
17. Structural Performance of World Trade Center, WAGA Television interview, Sept. 17, 2001
18. “Recent Findings from HPC Research in Georgia,” Southeast Regional HPC Showcase, Auburn, Alabama, June 29-30, 1999
19. “Strengthening of RC Beams with FRP”, Georgia Section, International Concrete Repair Institute, May 1999
20. “Structural Engineering Education”, Structural Engineers Association of Georgia, May 1998
21. “High Performance Concrete”, Annual Convention, National Society of Professional Engineers and Georgia Society of Professional Engineers, Atlanta, GA, January 28, 1999
22. High-Performance Concrete for Prestressed Concrete Bridges, ACI Convention, Atlanta, Georgia, November 1997
23. “Use of High-Strength/High-Performance Concrete for Precast Prestressed Concrete Bridges in Georgia,” SHRP High Performance Concrete Bridge Showcase, Waterville Valley, New Hampshire, Sept. 1997
24. “High Performance Concrete for Prestressed Bridges in Georgia -- Research Program and Concrete Properties,” Georgia Section, American Concrete Institute, May 23, 1997
25. “High Strength Concrete for Prestressed Bridges in Georgia -- Research Program and Analytical Results.” Georgia Section, ASCE, April 23, 1997.
26. “Use of High-Strength/High Performance Concrete for Precast Prestressed Concrete Bridges in Georgia -- Research Objectives and Mix Design.” (With James Lai) Georgia DOT and Federal Highway Administration Showcase, Atlanta, GA, March 19, 1997
27. “The Importance of Professional Registration in Engineering,” Atlanta Chapter, National Society of Black Engineers, Oct. 1996
28. “Pond Screenings for Flowable Fill, Controlled Low-Strength Concrete,” Annual Meeting of the Georgia Crushed Stone Association, August 1996
29. “Forensic Engineering,” ASCE Student Chapter, Georgia Institute of Technology, 1995
30. “Computer-Aided Structural Engineering and the Practicing Engineer,” South Carolina Section, ASCE, Annual Meeting, Greenville, SC. September 15, 1995
31. “Seismic Design Provisions for Georgia,” State of Georgia Building Code Committee, 1994
32. “Seismic Analysis of Bridge Structures,” California Dept of Transportation, Sacramento, 1994
33. “Prestressed Concrete Analysis,” GTSTRUDL Users Group Meeting, Las Vegas, Nevada, June 1994
34. “Computer-Aided Engineering for Reinforced Concrete Structures,” ACI Annual Convention, San Francisco, March 1994
35. “Integration of Roadway Layout and Bridge Engineering,” CEAL Users Group Annual Meeting, Atlanta, 1995
36. “Use of Rectangular Stress Block for Non-Rectangular Sections,” ACI Fall Convention, Minneapolis, MN, November 1993
37. “Build on Strengths of Existing CAE Software: the GTSTRUDL Example,” Technical Workshop on Lateral and Rotational Stiffness of Highway Bridges, Federal Highway Administration, Crystal City, VA, June 1993
38. “Structural Engineering Research at Georgia Tech,” Gwinnett Society of Professional Engineers, Lawrenceville, GA, Sept. 1990.
39. “Building Performance in the Loma Prieta Earthquake,” CNN telecast, October 1989
40. “Shear Design of Prestressed Concrete Beams,” Spreadsheets for Concrete Design (COM 4), American Concrete Institute Convention, San Diego, CA, October 1989.
41. “What's New in GTSTRUDL,” GTSTRUDL Users Group Annual Meeting, Georgia Tech, June 1989.
42. “Process Manufacturing Plant Design,” IBM Manufacturing Industry Executive Conference, Phoenix, Arizona, May 1989.
43. “Commercial Software for Classroom Use,” IBM Academic Systems Conference, Phoenix, Arizona, Sept. 1988.
44. “Earthquake Performance of Buildings,” WXIA telecast, Sept. 1988
45. “Earthquake Performance of Buildings,” CNN Newsday telecast, Sept. 1988
46. “Technology Transfer through Software,” UPCAEDM ‘88, Georgia Institute of Technology, Atlanta, June 1988
47. “Computer Aided Structural Engineering,” IBM Public Sector Conference, Gaitersburg, Maryland, April 1988
48. “University Software, Why Pay,” Conference of the Society of University Patent Attorneys, San Diego, Feb. 1988
49. “CAE for Civil Engineers,” Conference on Computing Applications in Civil Engineering, University Technology Malaysia, Kuala Lumpur, Feb 1988.
50. “CAE/CAD and GTSTRUDL,” IBM AEC Large Account Forum, Atlanta, September 15, 1987.
51. “GTSTRUDL, Structural Analysis and Design,” AEC Systems Conference, Chicago, Illinois, June 1987
52. “Mexico City Earthquake,” Structural Aspects, Georgia Section ASCE Annual Meeting, September 1986.
53. “Reinforced Concrete Design,” Micro Computer Concrete Expo, Concrete Reinforcing Steel Institute, Atlanta, January 1986.
54. "Seismic Retrofit", Conference on Seismic retrofit of Existing Unreinforced Masonry Buildings, The Citadel, Charleston, South Carolina, January 1985.
55. “Computer Aided Engineering Research,” Georgia Tech National Advisory Board, Atlanta 1984.
56. “Seismic Retrofit and Repair,” SUNY Buffalo, November 1984.
57. "Computer Aided Design in Civil Engineering", presented ASCE Georgia Section Annual Convention, Atlanta, Georgia, September 1984.
58. "Strengthening Brick Masonry Walls with Shotcrete" presented ACI Annual Convention, Los Angeles, California, March 1983.
59. "Building Retrofit for Earthquake Resistance," invited presentation at Workshop on Facility Damage Factors, South Carolina Seismic Safety Consortium, The Citadel, Charleston, South Carolina, February 1983.
60. "Earthquake Engineering in Georgia," presented to GSPE Western Section Engineer's Week Meeting, Carrollton, Georgia, February 1982.
61. "Development of Seismic Design Provisions for the City of Atlanta," presented at the Conference on Earthquakes and Earthquake Engineering: the Eastern United States, Knoxville, Tennessee, September 1981.
62. "Retrofit of Masonry," presented to the US/Japan Cooperative Research Meeting, Building Research Institute, Tsukuba, Japan May 1981.
63. "Repair of Masonry Structures," presented to US/PRC Joint Research Meeting, The University of Michigan, Ann Arbor, Michigan May 1981.
64. "Should Atlanta Design for Earthquake Resistance?" presented to the Georgia Section, ASCE, February 1981.
65. "Earthquake Resistance of Reinforced Concrete," presented to the Atlanta Chapter of the American Concrete Institute, September 1980.
66. "Strengthening of Existing RC Columns for Earthquake Resistance," presented at the 7th World Conference on Earthquake Engineering, Istanbul, Turkey, September 1980.
67. "State of the Art, Repair and Strengthening of Structures," panel member, 7th World Conference on Earthquake Engineering, Istanbul, Turkey, September 1980.
68. "Engineering Education and the Prestressed Concrete Industry," presented to the Prestressed Concrete Institute Southeast Regional Meeting, Atlanta, Georgia, April 22, 1980.
69. "Repair of Concrete Columns," presented to Committee 441 Session at the ACI Annual Convention, Las Vegas, Nevada, March 1980.
70. "Improving Ductility of Existing Reinforced Concrete Columns," presented to the U.S. National Conference on Earthquake Engineering, Stanford, California, August 1979.
71. "Strengthening of Existing Bridges Using Epoxy Injection," presented to the Transportation Research Board Annual Meeting, Washington, D.C., January 1979.
72. "Strengthening of R/C Columns for Earthquake Resistance," presented to the Universities Council for Earthquake Engineering Research, MIT, Boston, Massachusetts, June 1978.
73. "Concrete Polymer," presented to the Atlanta Chapter, American Concrete Institute, Atlanta, Georgia, April 1978.
74. "Ultra High Strength Concrete," presented at the Georgia Section ASCE Seminar on Concrete, Atlanta, Georgia, October 1977.
75. "Earthquake Strengthening of R/C Structures," presented at the NSF Workshop on Repair, Rehabilitation and Strengthening of Structures, South San Francisco, California, June 1977.
76. "Infilled Walls for Earthquake Strengthening," presented at the ASCE Annual Meeting, Denver, Colorado, November 1975.
77. "Concrete Spheres Under Hydrostatic Loading," presented at the ASCE National Conference for Structural Engineering, Portland, Oregon, April 9, 1970.