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BRIEF INTRODUCTION 

Prof. Dagher received his Doctorate degree in structural engineering from the University of Wisconsin-Madison in 1985.   He also holds two Masters Degrees in Structural Engineering and in Engineering Mechanics. He is Professor of Civil/Structural Engineering at the University of Maine, and Director of the Advanced Engineered Wood Composites Center.   The objective of the NSF-funded Center is to develop high-performance FRP-wood hybrid materials for construction and bridge applications. The University of Maine has constructed a 30,000-ft2 research facility to house the Center.  The facility is able to manufacture composite materials prototypes, engineered wood composites prototypes, and test full-scale bridges up to 100 ft long, 50 ft wide and buildings up to 25 ft high.  

 Dr. Dagher has received numerous awards for his work, including the Distinguished Maine Professor Award, the highest award to a faculty at the University of Maine.  Dr. Dagher has written over 100 technical publications, and chairs national technical committees in the bridge and FRP reinforcement areas.  He has designed and analyzed and maintained numerous bridges, fourteen of which are in Maine.  He has been a consultant to the Maine Department of Transportation for 12 years and has taught courses to their bridge engineers.   He has conducted many technical projects for the Federal Highway Administration, and has served on many national bridge technical panels.   He has helped develop design criteria for bridges that are now in place in the State of Maine.   He is frequently called upon nationally and internationally to consult on matters of bridge design.  He has consulted on numerous bridge projects some with lengths exceeding 450 ft.  Some of Dr. Dagher's bridge projects may be viewed on the following web site address: www.aewc.umaine.edu.   

 

 

 

 

EDUCATION

Ph.D., Structural Engineering, University of Wisconsin-Madison, 1985

M.S., Engineering Mechanics, University of Wisconsin-Madison, 1984

M.S., Structural Engineering, University of Wisconsin-Madison, 1982

B.S., Civil Engineering, University of Dayton-Ohio, 1980  

 

 

 

 

 

 

 

AWARDS AND HONORS

Best Technical Paper.  Composite Fabricator's Association 2000

Bath Iron Works Professorship 1998

Ashley-Campbell Award, 1996
      Highest award offered annually to one UMaine College
      of Engineering faculty member

Carnegie Foundation Maine Professor of the Year 1995
      Award offered annually to one professor selected from
      the State of Maine

Distinguished Maine Professor, 1995
       Highest award offered annually to one professor at UMaine

Public Service Award in Bridge Technology, 1992
       Awarded by VP for Research and Public Service, UMaine

Distinguished Young Professor, Research Award, 1990
       Awarded by the UMaine College of Engineering and Science

Distinguished Young Professor, Teaching Award, 1987
        Awarded by the UMaine College of Engineering and Science

Civil Engineering Professor of the Year 1986, 1988, 1989, 1991

 

 

 

 

 

SELECTED TECHNICAL COMMITTEES

  • ASCE Committee on Timber Bridges (Chair, 1997-present)
  • ASCE Structural Composites and Plastics Committee (1995-present)
  • ASTM Committee on FRP-Glulam (1994-present)
  • AASHTO-AFPA Liaison Committee on Timber Bridges (1992-1996)
  • Control Member, ASCE Committee on Timber Bridges (1993-present)
  • ASCE Committee on Wood
  • Control member, Technical Committee on Safety of Buildings, of the
    Technical Administrative Committee on Structural Safety and Reliability,
    ASCE (1990-1993).  Member (1993-present).
  • National Cooperative Highway Research Program, panel member on
    project NCHRP 12-37, Transverse Cracking of Newly Constructed Bridge Decks     

 

 

 

 

PROFESSIONAL REGISTRATION

Professional Engineer, State of Maine, No. 6366

 

 

 

 

 

 

 

 

 

 

 

 

DEMONSTRATION BRIDGES AND PATENTS   

Dr. Dagher has developed, designed, tested and monitored fourteen full-scale demonstration bridges using wood and wood-FRP composite hybrids.  Dr. Dagher has three patents pending on FRP technology for bridges. 

Patent No. 6,170,209.  Dagher, et al. Prestressing System for Wood Structures and Elements.  Issued 01/09/01.

 

 

 

 

 

 

 

 

 

TECHNICAL PROJECTS (TOTAL GRANT FUNDING 1986-PRESENT EXCEEDS $12 MILLION)

Dr. Dagher has completed over 50 externally funded technical projects/grants at the University of Maine.  Sponsors of Dr. Dagher's technical work include:

  • National Science Foundation

  • Federal Highway Administration

  • United States Department of Commerce

  • Ontario Hydro

  • New England Transportation Consortium

  • Maine Science and Technology Foundation

  • Willamette Industries

  • Electric Power Research Institute

  • United States Department of Agriculture

  • Bonneville Power Administration

  • Land and Water Resources Center

  • Maine Department of Transportation

  • Maine RC&D

  • Morrison Molded Fiberglass

  

    

 

 

 

 

SELECTED PUBLICATIONS (OUT OF OVER 100 PUBLICATIONS)  

         
 “Strengthening of Wood Beams Using FRP Composites,"
             Presented  at Composite Fabricator's Association Conference,
             Las Vegas, NV, September 27-29, 2000. Winner: Best Technical Paper
             Award. 

 “Experimental and Numerical Study on Creep of FRP Reinforced Glulam Beams,” Proceedings,  1st Rilem Symposium on Timber Engineering, Sweden, September 13-15, 1999. pp. 581-590 (with Davids, W. and Breton, J.)

“FRP Reinforced Wood in Bridge Applications,” Proceedings, 1st Rilem Symposium on Timber Engineering, Sweden, September 13-15, 1999.  pp. 591-598 (with Lindyberg, R.)

“Durability of FRP Reinforcement for Wood,” Proceedings, 1999 International Composites Expo, Cincinnati, OH, May 10-12, 1999. Session 22-C (with Abdel-Magid, B.; Battles, E.; Iqbal, M.)

“West Seboeis Stream FRP-Glulam Highway Bridge,” Proceedings, 1999 International Composites Expo, Cincinnati, OH, May 10-12, 1999.  Session 25-D (with Lindyberg, R.)

“Probabilistic Nonlinear Computer Model for Reinforced Glulams,” Proceedings, 1999 Structures Congress, New Orleans, LA., April 18-21, 1999. pp. 683-687 (with Lindyberg, R.)

 “Ultimate Strenth of FRP-Reinforced Glulam Beams Made with Douglas-Fir and Eastern Hemlock,” Proceedings, International Composites Expo ’98, Nashville, Tennessee, Jan. 19-22, 1998. Session 22-C (with S. Shaler, J. Poulin, b. Abdel-Magid, W. Tjoelker and B. Yeh)

“Center for Advanced Wood Composites in Construction: Research and Demonstration Projects,” Proceedings, International Composites Expo ’98, Nashville, Tennessee, Jan. 19-22, 1998. Session 22-D (with S. Shaler, B. Abdel-Magid and E. Landis)

“Creep Behavior of FRP-Reinforced Glulam Beams,” Proceedings, International Composites Expo ’98, Nashville, Tennessee, January 19-22, 1998.  Session 22-E

     (with J. Breton)

 “FRP Post-Tensioning of Laminated Timber Bridges,”  Proceedings, International SAMPE Symposium and Exhibition, Held in Anaheim, California, May 4-8. 1997. (with Abdel-Magid, B.; Ritter, M. and S. Iyer)

“GRP Prestressing of Wood Decks,” Proceedings, ASCE Structures Congress XV, held in Portland, Oregon, April 13-16, 1997. Vol. I, pp. 585-589 (with Abdel-Magid, B.; Ritter, M. and S. Iyer)

“NDE and Performance Monitoring of FRP-Wood Hybrid Structures,” Proceedings, ASCE Structures Congress XV, held in Portland, Oregon, April 13-16, 1997.

     Vol II. pp. 1504-1507 (with E. Landis)

“Stress-Laminated Timber Decks using Glass FRP Tendons,”  Proceedings, Fourth ASCE Materials Engineering Conference, held in Washington, D.C., November 10-14, 1996. (with Abdel-Magid, B.; Ritter, M. and S. Iyer)

 “Effect of FRP reinforcement on low-grade eastern hemlock glulams.”  Proceedings, 1996 National Conference on Wood Transportation Structures, Madison, Wisc. (with Kimball, T.; Abdel-Magid, B.; and Shaler, S. )

"MPC Wood Truss Bridges", Wood Design Focus, 1996.

“Nonlinear FE Analysis of RC Skewed Slab Bridges,” ASCE Journal of Structural Engineering, Vol 121, No. 9. pp 1338-1345, 1995 (with J. Kankam).

"The Effect of Composite Reinforcement on Structural Wood,” Proceedings - ASCE 1994 Materials Engineering Conference, Infrastructure: New materials and methods for repair, San Diego, California, Nov. 14-16. (with B. Abdel-Magid, and T. Kimball) 
 

Complete Publications
Dagher, H.J.; Altimore, F.M. 2000 Field Performance of a Reinforced Concrete Bridge Deck Using 45 Percent Less Reinforcement than Required by AASHTO; Ferry Hill Bridge, Orono, ME Report 00-01. Advanced Engineered Wood Composites Center, University of Maine; Orono, ME; 42 p.
Dagher, H.J.; Altimore, F.M. 2000 Field Performance of a GFRP Stress-Laminated Deck Located in Milbridge, Maine. Report 00-02. Advanced Engineered Wood Composites Center, University of Maine; Orono, Maine; 14 p.
Dagher, H.J. 2000 High-Performance Wood Composites for Construction. Presentation. VII Brazilian Conference on Wood and Timber Structures; University of Sao Paolo; Sao Paolo, Brazil; 12-14 July 2000.
Dagher, H.J. 2000 FRP-Reinforced Glulams for Bridge Applications. Presented to AASHTO Committee on Timber Bridges; Charleston, SC; 5-8 June 2000.
Dagher, H.J. 2000 Strengthening of Wood Beams Using FRP Composites. Presented at Composites Fabricators Association Conference; Las Vegas, NV; 27-29 September 2000.
Dagher, H.J.; Davids, W. 2000 A New Generation of Wood-FRP Hybrid Composites Can Improve Disaster Resistance. Presented at Durability & Disaster Mitigation in Wood Frame Housing; Madison, WI; 6-8 November 2000.
Dagher, H.J.; Lindyberg, R. 2000 FRP-Wood Hybrids for Bridges: A Comparison of E-Glass and Carbon Reinforcements. Presented at ASCE/SEI Structures Congress 2000; Philadelphia, PA; 8-10 May 2000.
Battles, E.P.; Dagher, H.J.; Abdel-Magid, B. 1999 Durability of FRP Reinforcement for Wood Bridges. (Abstract). Proceedings: 1st International Conference on Advanced Engineered Wood Composites; Bar Harbor, ME; 5-8 July 1999; pp. 13-14.
Dagher, H.J.; Shaler, S.M.; Lowry, C. 1999 FRP Reinforced LVL and Structural I-Joists. (Abstract). Proceedings: 1st International Conference on Advanced Engineered Wood Composites; Bar Harbor, ME; 5-8 July 1999; pp. 21-23.
Benoit, N.; Dagher, H.J.; Lindyberg, R. 1999 Developing a Material Property Database to be Used with ReLAM. (Abstract). Proceedings: 1st International Conference on Advanced Engineered Wood Composites; Bar Harbor, ME; 5-8 July 1999; p. 41.
Dagher, H.J. 1999 Advanced Wood Composites: Lessons from the Past and Directions for the Future. (Abstract). Proceedings: 1st International Conference on Advanced Engineered Wood Composites; Bar Harbor, ME; 5-8 July 1999; pp. 2-4.
Breton, J.M.; Dagher, H.J. 1999 Creep Behavior of FRP-Reinforced Douglas Fir and Western Hemlock Glulam Beams. Report 99-9. Advanced Engineered Wood Composites Center, University of Maine; Orono, ME; 250 p.
Dagher, H.J.; Davids, W.; Breton, J. 1999 Experimental and Numerical Study on Creep of FRP Reinforced Glulam Beams. Proceedings: 1st Rilem Symposium on Timber Engineering; Stockholm, Sweden; 13-15 September 1999; pp. 581-590.
Dagher, H.J.; Lindyberg, R. 1999 FRP Reinforced Wood in Bridge Applications. Proceedings: 1st Rilem Symposium on Timber Engineering; Stockholm,Sweden; 13-15 September 1999; pp. 591-598.
Dagher, H.J.; Abdel-Magid, B.; Battles, E.; Iqbal, M. 1999 Durability of FRP Reinforcement for Wood. Proceedings: 1999 International Composites Expo; Cincinnati, OH; Session 22-C.
Dagher, H.J.; Lindyberg, R. 1999 West Seboeis Stream FRP-Glulam Highway Bridge. Proceedings: 1999 International Composites Expo; Cincinnati, OH; Session 25-D.
Dagher, H.J.; Lindyberg, R. 1999 Probabilistic Nonlinear Computer Model for Reinforced Glulams. Proceedings: 1999 Structures Congress; New Orleans, LA; pp. 683-687.
Dagher, H.J.; Shaler, S.; Poulin, J.; Abdel-Magid, B.; Tjoelker, W.; Yeh, B. 1998 Ultimate Strength of FRP-Reinforced Glulam Beams Made with Douglas-Fir and Eastern Hemlock. Proceedings: International Composites Expo '98; Nashville, TN; Session 22-C.
Dagher, H.J.; Altimore, F.; Caccese, V.; Ritter, M.; Hebert, R. 1998 Field Performance of a Stress-Laminated Deck Bridge Located in Gray, ME. Report 98-8. Advanced Engineered Wood Composites Center, University of Maine; Orono, ME.
Dagher, H.J.; Altimore, F.; Caccese, V.; Ritter, M. 1998 Field Performance of a Stress-Laminated Truss Bridge Located in North Yarmouth, ME. Report 98-7. Advanced Engineered Wood Composites Center, University of Maine; Orono, ME.
Dagher, H.J.; Altimore, F.; Caccese, V.; Ritter, M. 1998 Field Performance of a Stress-Laminated Truss Bridge Located in Byron, ME. Report 98-6. Advanced Engineered Wood Composites Center, University of Maine; Orono, ME.
Dagher, H.J.; Breton, J; Shaler, S.; Abdel-Magid, B. 1998 Creep Behavior of FRP-Reinforced Glulam Beams. Proceedings: International Composites Expo '98; Nashville, TN; Session 22E, pp. 1-9.
Dagher, H.J.; Abdel-Magid, B.; Lindyberg, R.; Poulin, J.; Shaler, S. 1998 Static Bending Test Results of Douglas Fir and Western Hemlock FRP-Reinforced Glulam Beams. Report 98-4. Advanced Engineered Wood Composites Center, University of Maine; Orono, ME.
Dagher, H.J.; Lindyberg, R. 1998 "Evaluation of ICBO Report ER-5100." Report 98-3. Advanced Engineered Wood Composites Center, University of Maine; Orono, ME.
Dagher, H.J.; Lindyberg, R.; Shaler, S; Abdel-Magid, B. 1998 Validation of ReLAM: Probabilistic Nonlinear Computer Model for Reinforced Glulam. Report 98-2. Advanced Engineered Wood Composites Center, University of Maine; Orono, ME.
Dagher, H.J.; Lindyberg, R.; Abdel-Magid, B. 1998 Three FRP-Reinforced Glulam Demonstration Projects in the USA. Presentation. 5th World Conference on Timber Engineering; Switzerland; 17-21 August 1998.
Dagher, H.J.; Shaler, S; Abdel-Magid, B.; Landis, E. 1998 Center for Advanced Engineered Wood Composites in Construction: Research and Demonstration Projects. Proceedings: International Composites Expo '98; Nashville, TN; Session 22D, pp. 1-9.
Dagher, H.J.; Shaler, S; Poulin, J.; Abdel-Magid, B.; Tjoelker, W.; Yeh, B. 1998 FRP Reinforcement of Douglas Fir and Western Hemlock Glulam Beams. Proceedings: International Composites Expo '98; Nashville, TN; Session 22C, pp. 1-4.
Dagher, H.J.; Poulin, J.; Abdel-Magid, B.; Shaler, S.M.; Tjoelker, W; Yeh, B. 1998 FRP Reinforcement of Douglas Fir and Western Hemlock Glulam Beams. Proceedings: ICE'98, Session 22C; Nashville, TN; 17-21 January 1998; pp. 1-3.
Dagher, H.J.; Shaler, S.M.; Abdel-Magid, B.; Landis, E. 1998 Center for Advanced Engineered Wood Composites in Construction: Research and Demonstration Projects. Proceedings: ICE'98, Session 22D; Nashville, TN; 17-21 January 1998; pp. 1-9.
Dagher, H.J.; Breton, J; Shaler, S.M.; Abdel-Magid, B. 1998 Creep Behavior of FRP-Reinforced Glulam Beams. Proceedings: ICE'98, Session 22E; Nashville, TN; 17-21 January 1998; pp. 1-9.
Dagher, H.J.; Shaler, S.M.; Strong, D.S. 1998 "DIN Testing of Sportlock Floor for Sherman Lumber Company."  
Dagher, H.J.; Strong, D.S.; Bremer, A.A.; Dyer, R.J. 1998 "Evaluation of the Integrity of Glue Joints for a Carbon-Wood Bond."  
Dagher, H.J.; Abdel-Magid, B.; Ritter, M.; Iyer, S. 1997 FRP Post-Tensioning of Laminated Timber Bridges. Presented at 42nd International SAMPE Symposium and Exhibition; Anaheim, CA; 4-8 May 1997.
Dagher, H.J.; Abdel-Magid, B.; Ritter, M.; Iyer, S. 1997 FRP Prestressing of Wood Decks. Proceedings: ASCE Structures Congress XV; Portland, OR; 13-16 April 1997.
Dagher, H.J.; Landis, E. 1997 NDE and Performance Monitoring of FRP-Wood Hybrid Structures. Proceedings: ASCE Structures Congress XV; Portland, OR; 13-16 April 1997.
Dagher, H.J.; Abdel-Magid, B.; Iyer, S.; Ritter, M. 1996 Stress-Laminated Timber Decks Using Glass FRP Tendons. Proceedings: Fourth ASCE Materials Engineering Conference; Washington, D.C.; 10-14 November 1996.
Dagher, H.J.; West, B.; Caccese, V.; Wolfe, R. 1996 Fatigue Design Criteria of Metal Plate Connector Wood Trusses for Bridge Applications. Proceedings: National Conference on Wood in Transportation Structures; Madison, WI; 23-25 October 1996.
Dagher, H.J.; Kimball, T.; Shaler, S.; Abdel-Magid, B. 1996 Effect of FRP Reinforcement on Low-Grade Eastern Hemlock Glulam Beams. Proceedings: National Conference on Wood in Transportation Structures; Madison, WI; 23-25 October 1996.
Dagher, H.J.; Hetherly, P. 1996 The Modern Timber Bridge Program in the State of Maine: A Five-Year Report. Proceedings: National Conference on Wood in Transportation Structures; Madison, WI; 23-25 October 1996.
Dagher, H.J.; Abdel-Magid, B.; Scholsky, K.; Shaler, S.; Kimball, T. 1996 Interfacial Bonding Between Phenolic Matrix Composites and Wood. Proceedings: ICII '96, First International Conference on Composites Infrastructure; Tucson, AZ; 15-17 January 1996.
Dagher, H.J.; Abdel-Magid, B.; Iyer, S.; Lu, W. 1996 Stress-Laminated Timber Decks Using Glass FRP Tendons. Proceedings: Fourth ASCE Materials Engineering Conference; Washington, D.C.; November 1996.
Dagher, H.J.; Kimball, T.; Abdel-Magid, B.; Shaler, S.M. 1996 Effect of FRP Reinforcement on Low-Grade Eastern Hemlock Glulams. Proceedings: 1996 National Conference on Wood Transportation Structures; Madison, WI.
Dagher, H.; Abdel-Magid, B.; Shaler, S.M. 1996 Glulam Beams Reinforced with FRP. Patent Application.
Dagher, H.; Abdel-Magid, B.; Shaler, S.M. 1996 Resin Starved Pultruded Impregnated Panels to Reinforce a Wood Composite. Patent Application.
Dagher, H.J. 1995 "Metal Plate Connected Wood Truss Bridges." Wood Design Focus. Summer 1995.
Dagher, H.J.; Kankam, J. 1995 "Nonlinear FE Analyses of RC Skewed Slab Bridges." Journal of Structural Engineering, ASCE. 121(9).
Dagher, H.J.; Lanpher, K.; Shaler, S.; Moody, R. 1995 Investigation and Use of Maine Red Maple and Eastern Hemlock in Glulam Bridges. Final Report to the Maine Department of Transportation and the National Science Foundation; August 1995; 293 p.
Dagher, H.J.; Caccese, V.; Wolfe, R.; Hsu, Y.; Altimore, F. 1995 Timber Bridges in Maine: Using Lightweight MCP Trusses in Bridges. Proceedings: ASCE Structures Congress '95; Boston, MA.
Dagher, H.J.; Peyrot, A.; Lu, Q. 1995 Practical Implementation of RBD for Transmission Lines. Proceedings: ASCE Structures Congress '95; Boston, MA.
Dagher, H.J.; Comstock, L. 1994 Laboratory Tests of Two 1/3 Scale Models of a RC Skewed Slab Bridge with Integral Abutments. Final Report to the Maine Department of Transportation, Technical Services Division; Technical Paper 90-03; April 1994; 260 p.
Dagher, H.J.; Caccese, V.; Wolfe, R.; Hsu, S. 1994 Fatigue of Metal Connector Plates. Phase 1 Final Report to the Forest Products Laboratory and the Federal Highway Administration; University of Maine Civil Engineering Department; Orono, ME; April 1994; 75 p.
Dagher, H.J.; Abdel-Magid, B. 1994 Effect of Composite Reinforcement on Structural Wood. Proceedings: Third Materials Engineering Conference; San Diego, CA; 13-16 November 1994.
Dagher, H.J.; Lanpher, K.A.; Kimball, T.; Conrad, C.; James, S.; Ritter, M.; Wolfe, R.; Moody, R.; Caccese, V. 1994 Timber Bridge Research at the University of Maine: Parts I and II. Biographies and Abstracts; Forest Products Research Society, 48th Annual Meeting; Portland, ME; 26-29 June 1994.
Dagher, H.J.; Lu, Q. 1993 "System Reliability Analysis of Transmission Lines." Engineering Structures. 15(4).
Dagher, H.J.; Lu, Q.; Kulendran, S.; Peyrot, A.; Maamouri, M. 1993 Structural System Reliability of Transmission Lines. Volume 1: Analysis Methods. Final Report to the National Science Foundation and the Electric Power Research Institute; University of Maine Civil Engineering Department; Orono, ME; May 1993; 210 p.
Dagher, H.J.; Lu, Q.; Kulendran, S.; Peyrot, A.; Maamouri, M. 1993 Structural System Reliability of Transmission Lines. Volume 2: RELIAB. Final Report to the National Science Foundation and the Electric Power Research Institute; University of Maine Civil Engineering Department; Orono, ME; May 1993; 110 p.
Dagher, H.J.; Caccese, V.; Light, K. 1993 Remote Monitoring of a Stressed Timber Bridge Deck. Proceedings: ASCE Structures Congress XI; Irvine, CA; 19-21 April 1993.
Dagher, H.J.; Lu, Q.; Peyrot, H. 1993 Simplified Reliability of Transmission Structures Including Both Geometric and Material Nonlinearities. Proceedings: ASCE Structures Congress XI; Irvine, CA; 19-21 April 1993.
Dagher, H.J.; Kankam, J. 1993 Linear and Nonlinear Finite Element Analyses of RC Skewed Slab Bridges with Integral Wall Abutments. Proceedings: ASCE Structures Congress XI; Irvine, CA; 19-21 April 1993.
Dagher, H.J.; Comstock, L. 1993 Physical Testing of Two R/C Skewed Slab Bridges with Integral Wall Abutments. Proceedings: ASCE Structures Congress XI; Irvine, CA; 19-21 April 1993.
Dagher, H.J.; Kulendran, S.; Peyrot, A.H.; Maamouri, M; Lu, Q. 1993   Journal of Structural Engineering, ASCE. 119(1).
Dagher, H.J.; Kulendran, S. 1992 "FE Modeling of Corrosion Damage in Concrete Structures." ACI Structural Journal. 89(6).
Dagher, H.J.; Lu, Q.; Peyrot, H. 1992 RELIAB: A Computer Program for System Relaibility Analysis of Transmission Structures. Draft Report to University of Maine Civil Engineering Department; 12 December 1992; 214 p.
Dagher, H.J.; Roth, M.J.S.; Sanford, T.C. 1992 Application of the Design Point Method to a Time-Dependent System Reliability Analysis Problem. Second Canadian Conference on Computing in Civil Engineering; Ottawa, ON, Canada; 5-7 August 1992.
Dagher, H.J.; Lu, Q; Peyrot, H. 1992 Reliability Analysis of Transmission Lines. International Conference on Innovative Large Span Structures; Toronto, Canada; 13-17 July 1992.
Dagher, H.J.; Roth, M.; Sanford, T. 1992 Incorporating Corrosion in Reliability-Based Design of Anchored Bulkheads. ASCE Specialty Conference on Probabilistic Mechanics and Structural and Geotechnical Reliability; Denver, CO; 8-10 July 1992.
Dagher, H.J. 1992 Redundancy of Latticed Transmission Towers. ASCE Structures Conference; San Antonio, TX; 13-16 April 1992.
Dagher, H.J.; Elgaaly, M.; Davids, W. 1992 "Design of Non-Slender Single Angle Struts." AISCE Engineering Journal. First Quarter 1992.
Dagher, H.J.; Coomstock, L.; Kankam, J. 1992 Laboratory Model Test of a R/C Skewed Slab Bridge with Integral Wall Abutments. Draft Report to University of Maine Civil Engineering Department; January 1992; 125 p.
Dagher, H.J.; Caccese, V.; Hebert, R.; Schwartz, D. 1991 "Feasibility of CCA Treated Stressed Timber Bridge Decks." Forest Products Journal. 41(10):60-64.
Dagher, H.J.; Caccese, V.; Hebert, R. 1991 "Design and Monitoring of a CCA-Treated Stressed Timber Bridge Deck." Forest Products Journal. November-December 1991.
Dagher, H.J.; Elgaaly, M.; Kankam, J. 1991 Analytical Investigation of Slab Bridges with Integral Wall Abutments. Transportation Research Record No. 1319, 1991.
Dagher, H.J.; Elgaaly, M.; Kankam, J.; Comstock, L. 1991 Skewed Slab Bridges with Integral Wall Abutments. Volume 1: Design Guide. Technical Services Division; Technical Paper 90-3; October 1991; 47 p.
Dagher, H.J.; Elgaaly, M.; Kankam, J.; Comstock, L. 1991 Skewed Slab Bridges with Integral Wall Abutments. Volume 2: Design Curves. Technical Services Division; Technical Paper 90-3; October 1991.
Dagher, H.J.; Elgaaly, M.; Kankam, J.; Comstock, L. 1991 Skewed Slab Bridges with Integral Wall Abutments. Volume 3: Computer Program Skewslab. Technical Services Division; Technical Paper 90-3; October 1991; 61 p.
Dagher, H.J.; Elgaaly, M.; Kankam, J.; Comstock, L. 1991 Skewed Slab Bridges with Integral Wall Abutments. Volume 4: Analysis of Smith Bridge. Technical Services Division; Technical Paper 90-3; October 1991; 16 p.
Dagher, H.J.; Elgaaly, M.; Kankam, J.; Comstock, L. 1991 Skewed Slab Bridges with Integral Wall Abutments. Volume 5: FORTRAN Listings for SAP Pre- and Post-Processors. Technical Services Division; Technical Paper 90-3; October 1991; 167 p.
Dagher, H.J.; Elgaaly, M.; Kankam, J.; Comstock, L. 1991 Skewed Slab Bridges with Integral Wall Abutments. Volume 6: Results of Nationwide Survey. Technical Services Division; Technical Paper 90-3; October 1991.
Dagher, H.J.; Caccese, V.; Hsu. 1991 Feasibility of Metal Connector Plates in Timber Bridges: Fatigue Study. Report to University of Maine Civil Engineering Department; August 1991; 201 p.
Dagher, H.J. 1991 Reliability-Based Design of Transmission Lines: Comparison of the ASCE and IEC Methods. Probabilistic Methods Applied to Electric Power Systems; Savoy, London, England; 3-5 July 1991.
Dagher, H.J.; Kulendran, S.; Peyrot, A.; Maamouri, M. 1991 Relationships Between Line, Tower and Component Structural Reliabilities. Probabilistic Methods Applied to Electric Power Systems; Savoy, London, England; 3-5 July 1991.
Dagher, H.J.; Sanford, T.; Roth, M. 1991 Reliability Analysis of Waterfront Retaining Structures. Sixth International Conference on Applications of Statistics and Probability in Civil Engineering; Mexico City, Mexico; June 1991.
Dagher, H.J.; Peyrot, A.; Maamouri, M.; Kulendran, S. 1991 Practical Inclusion of System Reliability at the Design Level. Sixth International Conference on Applications of Statistics and Probability in Civil Engineering; Mexico City, Mexico; June 1991.
Dagher, H.J.; Sanford, T.; Roth, M. 1991 Reliability Analysis of Waterfront Retaining Structures. Sixth International Conference on Applications of Statistics and Probability in Civil Engineering; Mexico City, Mexico; June 1991.
Dagher, H.J.; Elgaaly, M.; Davids, B.; Krishnasamy, S; Kempner, L. 1991 Testing Component Strength for Reliability-Based Design. Sixth International Conference on Applications of Statistics and Probability in Civil Engineering; Mexico City, Mexico; June 1991.
Dagher, H.J.; Peyrot, A.; Maamouri, M.; Kulendran, S. 1991 Practical System Reliability Concepts for Transmission Lines. ASCE Structures Conference; Indianapolis, IN; 1991.
Elgaaly, M.; Dagher, H.J.; Davids, W. 1991 "Behavior of Nonslender Single Angle Compression Members." Journal of Structural Engineering. ASCE. December 1991.
Elgaaly, M.; Dagher, H.J.; Davids, W. 1991 "Behavior of Single Angle Compression Members." Journal of Structural Engineering, ASCE. 117(12):3720-3740.
Elgaaly, M.; Dagher, H.J.; Davids, W. 1991 Inelastic Buckling of Single Angle Members. Presentation. 1991 Annual Technical Session, Structural Stability Research Council.
Dagher, H.J.; Caccese, V.; Hebert, R. 1990 Design of CCA-Treated Stressed Timber Decks. Bridge Engineering Research in Progress; University of Nevada; Reno, NV; 29-30 October 1990.
Dagher, H.J.; Elgaaly, M.; Kankam, J. 1990 Rigid Frame Reinforced Concrete Skewed Slab Bridges. Bridge Engineering Research in Progress; University of Nevada; Reno, NV; 29-30 October 1990.
Dagher, H.J.; Kulendran, S.; Hamilton, W. 1990 Finite Element Modeling of Corrosion-Induced Cracking in Bridge Decks. Bridge Engineering Research in Progress; University of Nevada; Reno, NV; 29-30 October 1990.
Dagher, H.J.; Elgaaly, M.; Kankam, J. 1990 Bridge Rail Design and Crash Worthiness. Proceedings: Forth Rail Bridge Centenary Conference; Heriot-Watt University; Edinburgh, Scotland; 21-23 August 1990.
Dagher, H.J.; Hamilton, W.; Kulendran, S. 1990 Durability of Concrete Bridge Decks with Reduced Reinforcement in Bridge Evaluation, Repair and Rehabilitation. Kluwer Academic Publishers; Dordrecht, The Netherlands.
Dagher, H.J.; Hamilton, W.; Kulendran, S. 1990 Durability of Bridge Decks with Reduced Reinforcement. Proceedings: ASCE Structures Congress; Baltimore, MD; 30 April-3 May 1990.
Dagher, H.J.; Elgaaly, M.; Kulendran, S. 1990 Crash Worthiness of Bridge Rails. Bridge Engineering Research in Progress; University of Nevada; Reno, NV; 29-30 October 1990.
Dagher, H.J.; Elgaaly, M.; Kankam, J. 1990 Behavior of Integral Reinforced Concrete Skewed Slab Bridges. Proceedings: Forth Rail Bridge Centenary Conference; Heriot-Watt University; Edinburgh, Scotland; 21-23 August 1990.
Dagher, H.J. 1990 Numerical Modeling of the Durability of Deck Slabs. Third International Conference on Short and Medium Span Bridges; Toronto, ON, Canada; 7-10 August 1990.
Dagher, H.J.; Elgaaly, M. 1990 Simplified Design of Rigid Frame Reinforced Concrete Skewed Slab Bridges. Proceedings: ASCE Structures Congress; Baltimore, MD; 30 April-3 May 1990.
Dagher, H.J.; Sanford, T.; Shah, H. 1990 Flow Predictions of a Three Dimensional Conditioned Probabilistic Flow Model. Proceedings: International Conference on Mechanics of Jointed and Faulted Rock; Technical University of Vienna; Vienna, Austria; 18-20 April 1990.
Dagher, H.J.; Elgaaly, M. 1990 Beams and Girders with Corrugated Webs. Proceedings: 1990 Annual Technical Session and Meeting, Structural Stability Research Council; St. Louis, MO; 9-11 April 1990.
Dagher, H.J.; Hamilton, W.; Kulendran, S. 1990 Durability of Concrete Bridge Decks with Reduced Reinforcement. Final Report to the Region One University Transportation Center, University of Maine Civil Engineering Department; Orono, ME; 31 January 1990; 147 p.
Dagher, H.J. 1989 "Timber Bridges: A Possible Solution to Maine's Aging Rural Infrastructure?" Maine-ly Engineering.10(2). Fall 1989.
Dagher, H.J.; Abdel-Magid, B. 1989 Structural Evaluation of Northern Products Log Homes According to 1987 BOCA. Report to Northern Products Log Homes; University of Maine Civil Engineering Department; Orono, ME; 48 p.
Dagher, H.J.; Elgaaly, M.; Kulendran, S. 1989 Bridge Rail Design and Crash Worthiness. Report to the New England Consortium States; University of Maine Civil Engineering Department; Orono, ME; October 1989.
Dagher, H.J. 1989 Finite Element Analysis of Concrete Cylindrical Groined Vault Roof. Report to the J. W. Sewall Company; University of Maine Civil Engineering Department; Orono, ME; September 1989.
Dagher, H.J.; Elgaaly, M. 1989 Design and Evaluation of Sign Support Structures. Six reports to the Maine Department of Transportation; University of Maine Civil Engineering Department; Orono, ME; August 1989.
Dagher, H.J.; Caccese, V.; Schwartz, D. 1989 Design of Gray Timber Bridge Superstructure. Report to the Maine RC&D's; University of Maine Civil Engineering Department; Orono, ME; July 1989.
Dagher, H.J.; Belanger, M; Kulendran, S. 1989 Extension of the Baseline Method to Include System Reliability Capability. Proceedings: Second International Symposium on Probabilistic Methods Applied to Electric Power Systems; Oakland, CA.
Dagher, H.J. 1988 Comparison of a 3D Frame-Grid Model with a 3D Flat Plate Model for the Analysis of the Walnut Hill Bridge. Report to the Maine Department of Transportation; University of Maine Civil Engineering Department; Orono, ME; February 1988.
Dagher, H.J.; Allwarden, J.; Elgaaly, M. 1987 "Statistical Strength Properties for Steel Angle Struts with Application in Lattice Transmission Structures." in N.C. Lind, ed., Reliability and Risk Analysis in Civil Engineering. Institute of Risk Research, University of Waterloo.
Dagher, H.J. 1987 "Reliability Calibration of the NESC Rules for the Structural Design of Transmission Line." in S.G. Krishnasamy, ed., Probabilistic Methods Applied to Electric Power Systems. Permagon Press.
Dagher, H.J.; Peyrot, A.H. 1987 "A General-Purpose Computer Program for the Reliability Analysis and Design of Structural Line Components." in S.G. Krishnasamy, ed., Probabilistic Methods Applied to Electric Power Systems. Permagon Press.
Dagher, H.J. 1987 System Reliability Concepts in the Design of Transmission Line Structures. Presented at ASCE Structures Congress; Orlando FL.
Dagher, H.J.; Peyrot, A.H. 1987 "Reliability-Based Design of Transmission Structures." Journal of Structural Engineering, ASCE. 113(5).
Dagher, H.J.; Peyrot, A.; McDonald, B. 1986 Theoretical and User's Manual for DESCAL-Reliability Analysis and Design of Transmission Line Components. Research Report; Electric Power Research Institute; Madison, WI.
Dagher, H.J. 1985 "Reliability-Based Analysis and Design of Transmission Line Structures." Ph.D. Dissertation. University of Wisconsin Department of Civil Engineering; Madison, WI.
Dagher, H.J.; Peyrot, A.H. 1984 "Reliability-Based Analysis and Design of Transmission Line Structures." Journal of Structural Engineering, ASCE. 110(11).
Dagher, H.J.; Peyrot, A.H. 1984 Reliability-Based LRFD for Transmission Line Structures. Proceedings: ASCE Fall Convention; San Francisco, CA.
Dagher, H.J.; Peyrot, A.H. 1984 Theoretical and User's Manual for DESCAL-Reliability Analysis and Design of Transmission Line Components. Research Report. Electric Power Research Institute; Madison, WI.
Dagher, H.J.; Peyrot, A.H. 1983 Strength of Transmission Line Components. IEEE PES Summer Meeting; CA.
Dagher, H.J. 1982 "Lateral Load Analysis of Unbraced Reinforced Concrete Buildings." M.S. Independent Study Report. University of Wisconsin Department of Civil Engineering; Madison, WI.
Dagher, H.J.; Lu, Q.; Peyrot, H.   "Reliability Analysis of Transmission Structures Including Both Geometric and Material Nonlinearities." Journal of Structural Engineering, ASCE.
Dagher, H.J.   System Reliability Concepts in the Design of Transmission Lines.  

 

ALL AEWC PUBLICATIONS

 

 

 

 

 

 

 

 

 

NSF-FUNDED CENTER FOR ADVANCED ENGINEERED
WOOD COMPOSITES

     In the mid-19th Century, reinforcing concrete with steel significantly changed building and bridge construction throughout the world.  As the 20th Century ends, many of the factors that contributed to the success of reinforced concrete are found in combining wood with Fiber Reinforced Polymers (FRPs).   In 1996, Dr. Dagher led a research team that received $8 million from the National Science Foundation, the State government, the US Department of Commerce and industry to create the Advanced Engineered Wood Composites Center in Maine. 

     The Advanced Wood Composites Center is developing the underlying science and engineering principles that will allow FRP-Wood hybrid materials to advance wood construction industry.    

     As in the development of reinforced and prestressed concrete, basic research is being conducted to unlock the full potential of a wide variety of AEWC structural members, e.g., beams, columns, panels and connections.  AEWC are unique in that two different materials, FRP and wood, are used together; thus the principles governing the short- and long-term structural behavior differ in many ways from those involving only one of the two materials.  The Center for Advanced Wood Composites in Construction, funded by NSF, the US Department of Commerce, and the US composites and wood industries, has the following objectives: 

  • developing a new class of FRP reinforcing materials that are compatible
    with wood, particularly its hygro-expansion and visco-elastic
    properties;

  • developing and maintaining over time the interface between the two
    materials needed to ensure full composite action; 

  • developing a basic understanding of the short- and long-term
    behavior of AEWC structural elements including performance
    over the full range of loading, ultimate strength, ductility, creep,
    fatigue and moisture/temperature/UV cycling. 

 

 

 

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