Article

Roberts, EE and Lees, JM and Hoult, NA (2012) Flexural Fatigue Performance of CFRP Prestressed Concrete Poles. Advances in Structural Engineering, 15. pp. 575-588. ISSN 1369-4332

Scott, P and Lees, JM (2012) Effects of solution exposure on the combined axial-shear behaviour of unidirectional CFRP rods. Composites Part A: Applied Science and Manufacturing, 43. pp. 1599-1611. ISSN 1359-835X

Dirar, S and Lees, J and Morley, C (2012) Precracked reinforced concrete T-Beams repaired in shear with bonded carbon Fiber-Reinforced Polymer sheets. ACI Structural Journal, 109. pp. 215-224. ISSN 0889-3241

Lees, JM and Winistorfer, AU (2011) Nonlaminated FRP Strap Elements for Reinforced Concrete, Timber, and Masonry Applications. J COMPOS CONSTR, 15. pp. 146-155. ISSN 1090-0268

Lees, JM and Stratford, T (2011) Editorial. P I CIVIL ENG-STR B, 164. pp. 289-290. ISSN 0965-0911

Hoult, NA and Lees, JM (2011) Time-Dependent Behavior of RC Beams Retrofitted with CFRP Straps. J COMPOS CONSTR, 15. pp. 75-84. ISSN 1090-0268

Yapa, HD and Lees, JM (2011) Analysis of CFRP strap-strengthened reinforced concrete beams using the modified compression field theory (MCFT). American Concrete Institute, ACI Special Publication, 1. pp. 541-560. ISSN 0193-2527

Scott, P and Lees, JM (2009) Uptake swelling and thermal expansion of CFRP tendons. P I CIVIL ENG-STR B, 162. pp. 263-273. ISSN 0965-0911

Hoult, NA and Lees, JM (2009) Efficient CFRP strap configurations for the shear strengthening of RC T-beams. ASCE Journal of Composites for Construction, 13. pp. 45-52. ISSN 1090-0268

Hoult, NA and Lees, JM (2009) Modelling of an unbonded CFRP strap shear retrofitting system for RC beams. ASCE Journal of Composites for Construction, 13. ISSN 1090-0268

Yang, XS and Lees, JM and Morley, CT (2008) Modelling crack propagation in structures: comparison of numerical methods. Communications in Numerical Methods in Engineering, 24. pp. 1373-1392. ISSN 1069-8299

Kesse, GK and Lees, JM (2007) Experimental behavior of reinforced concrete beams strengthened with prestressed CFRP shear straps. Journal of Composites for Construction (ASCE), 11. pp. 375-383. ISSN 1090-0268

Kesse, GK and Lees, JM (2007) Nonlinear FE analysis of cracks in tension and shear. Magazine of Concrete Research, 59. pp. 233-244. ISSN 0024-9831

Lees, JM (2006) Behaviour of GFRP adhesive pipe joints subjected to pressure and axial loadings. Composites Part A: Applied Science and Manufacturing, 37. pp. 1171-1179. ISSN 1359-835X

Burgoyne, CJ and Lees, JM and Middleton, CR and Morley, CT (2005) Concrete materials, composites and structures. Concrete, 39. pp. 22-23. ISSN 0010-5317

Lees, JM and Morley, CT and Yang, XS and Hasan Dirar, SMO (2005) Fibre-reinforced polymer strengthening of pre-cracked concrete structures. Concrete, 39. pp. 36-37. ISSN 0010-5317

Lees, J and Morley, C and Yang, X-S and Dirar, SH (2005) Fibre-reinforced polymer strengthenir. Concrete (London), 39. pp. 36-37. ISSN 0010-5317

Lees, JM and Makarov, G (2004) Mechanical/bonded joints for advanced composite structures. Proceedings of the Institution of Civil Engineers: Structures and Buildings, 157. pp. 91-97. ISSN 0965-0911

Lees, JM and Winistorfer, AU and Meier, U (2002) External prestressed carbon fiber-reinforced polymer straps for shear enhancement of concrete. J COMPOS CONSTR, 6. pp. 249-256. ISSN 1090-0268

Lees, JM (2001) Fibre-reinforced polymers in reinforced and prestressed concrete applications: moving forward. Progress in Structural Engineering and Materials, 3. pp. 122-131. ISSN 1365-0556

Lees, JM and Burgoyne, CJ (2000) Analysis of concrete beams with partially bonded composite reinforcement. ACI Structural Journal, 97. pp. 252-258. ISSN 0889-3241

Lees, JM and Burgoyne, CJ (1999) Experimental study of influence of bond on flexural behavior of concrete beams pre-tensioned with aramid fiber reinforced plastics. ACI Structural Journal, 96. pp. 377-385. ISSN 0889-3241

Lees, JM and Burgoyne, CJ (1999) Transfer bond stresses generated between FRP tendons and concrete. Magazine of Concrete Research, 51. pp. 229-239. ISSN 0024-9831

Lees, JM and Gruffyd Jones, B and Burgoyne, CJ (1995) Expansive cement couplers - a means of pre-tensioning fibre reinforced plastic tendons. Construction and Building Materials, 9. pp. 413-423. ISSN 0950-0618

Book

Middleton, Campbell Ross and Burgoyne, Christopher John and Lees, Janet Marillyn, eds. (2007) Morley Symposium on Concrete Plasticity and its Application, Cambridge, UK, 23 July 2007. CUED Technical Report CUED/D-STRUCT/TR.222 . Cambridge University, Department of Engineering, Cambridge, UK, -. ISBN 9780903428293

Book Section

Mertol, HC and Rizkalla, S and Scott, P and Lees, JM and El Hacha, R (2007) Durability of concrete beams prestressed with CFRP bars. In: Case Histories and Use of FRP for Prestressing Applications. ACI Special Publication . American Concrete Institute.

Terrasi, GP and Lees, JM (2003) CFRP prestressed concrete lighting columns. In: Field Applications of FRP Reinforcement: Case Studies. ACI Special Publication . American Concrete Institute, pp. 55-74.

Conference or Workshop Item

Hoult, NA and Lees, JM (2012) Long-Term Tests on CFRP Shear Retrofitted Beams: Ultimate Capacity. In: 6th International Conference on Advanced Composite Materials in Bridges and Structures (ACMBS-VI), -- to --, Kingston, Ontario.

Nelson, LA and Lees, JM (2010) Size Effects in Reinforced Concrete Beams Strengthened with CFRP Straps. In: UNSPECIFIED pp. 789-793..

Yapa, HD and Lees, JM (2009) Optimum shear strengthening of reinforced concrete beams with prestressed carbon fibre reinforced polymer (CFRP) straps. In: 4th International Conference on Advanced Composites in Construction (ACIC 09), 1-9-2009 to 3-9-2009, Edinburgh, UK.

Lees, JM (2009) Sensitivity of NSM reinforcement forces to bond-slip effects. In: 4th International Conference on Advanced Composites in Construction (ACIC 09), 1-9-2009 to 3-9-2009, Edinburgh, UK.

Scott, P and Lees, JM (2009) Chemical durability of silicon dioxide coatings for FRP tendons. In: 9th International Symposium on Fibre Reinforced Polymer Reinforcement for Concrete Structures, 13-7-2009 to 15-7-2009, Sydney, Australia.

Roberts, E and Hoult, NA and Lees, JM (2009) Fatigue performance of CFRP prestressed concrete lighting poles. In: 9th International Symposium on Fibre Reinforced Polymer Reinforcement for Concrete Structures, 13-7-2009 to 15-7-2009, Sydney, Australia.

Hoult, NA and Lees, JM (2008) Comparison of finite element approaches for modeling unbonded FRP shear reinforcement. In: 5th International Conference on Advanced Composite Materials in Bridges and Structures, -9-2008 to --, Winnipeg, Canada 17-..

Lees, JM (2008) Prestressed FRP/concrete systems – local material and global system challenges. In: 4th International Conference on FRP Composites in Civil Engineering, 22-7-2008 to 24-7-2008, Zurich, Switzerland 24-..

Hoult, NA and Lees, JM (2007) Approaches to modelling an unbonded CFRP strap shear strengthing system for RC beams. In: 8th International Symposium on Fiber Reinforced Polymer Reinforcement for Concrete Structures, FRPRCS' 07, 16-7-2007 to 18-7-2007, Patras, Greece pp. 210-211..

Yang, XS and Lees, JM and Morley, CT (2007) Comparison of CFRP strengthening methods: straps vs fabrics. In: The 8th International Symposium on Fibre Reinforced Polymer Reinforcement for Concrete Structures FRPRCS' 07, 16-7-2007 to 18-7-2007, Patras, Greece pp. 212-213..

Dirar, SMO and Morley, CT and Lees, JM (2007) Effect of effective depth and longitudinal steel ratio on the behaviour of precracked RC T-beams strenghtened in shear with CFRP fabrics. In: 8th International Symposium on Fibre Reinforced Polymer Reinforcement for Concrete Structures, FRPRCS' 07, 16-7-2007 to 18-7-2007, Patras, Greece pp. 220-221..

Scott, P and Lees, JM and Sutcliffe, MPF (2007) Novel modelling of solution uptake in CFRP tendons. In: The 8th International Symposium on Fiber Reinforced Polymer Reinforcement for Concrete Structures, FRPRCS' 07, 16-7-2007 to 18-7-2007, Patras, Greece pp. 516-519..

Mertol, HC and Rizkalla, S and Scott, P and Lees, JM and El Hacha, R (2007) Durability and fatigue behavior of concrete beams prestressed with CFRP. In: The 3rd International Conference on Durability and Field Applications of FRP Composites for Construction, CDCC' 07, 23-5-2007 to 25-5-2007, Quebec City, Canada.

Hassan Dirar, SMO and Lees, JM and Morley, CT (2007) Effect of load history on the behaviour of reinforced concrete beams retrofitted in shear with CFRP systems. In: 3rd International Conference on Advanced Composites in Construction, 2-4-2007 to 4-4-2007, Bath, United Kingdom pp. 292-300..

Yang, XS and Lees, JM and Morley, CT (2007) Nonlinear finite element 3-D simulations of CFRP shear strengthening. In: 3rd International Conference on Advanced Composites in Construction, 2-4-2007 to 4-4-2007, Bath, UK pp. 205-214..

Yang, XS and Lees, JM and Morley, CT (2006) Nonlinear analysis of the fracture of reinforced concrete beams under time-dependant loading. In: 2nd fib Congress, -6-2006 to --, Naples, Italy pp. 246-247..

Hassan Dirar, SMO and Hoult, NA and Morley, CT and Lees, JM (2006) Shear strengthening of precracked reinforced concrete beams using CFRP straps. In: 2nd fib Congress, -6-2006 to --, Naples, Italy pp. 158-159..

Yang, XS and Lees, JM and Morley, CT (2006) Application of virtual ant algorithms in the optimization of CFRP shear strengthened precracked structures. In: The 6th International conference on computational science (ICCS 2006), -5-2006 to -- pp. 834-837..

Yang, XS and Lees, JM and Morley, CT (2006) Optimization of CFRP strengthening of precracked structures using genetic algorithms. In: Computational Modelling of Concrete Structures: the EURO-C 2006, Austria, March, -3-2006 to -- pp. 915-920..

Scott, P and Lees, JM (2006) CFRP prestressing tendons: solution uptake and swelling effects. In: 3rd International Conference on Composites in Civil Engineering, CICE 2006, 13-12-2006 to 15-12-2006, Miami, Florida pp. 467-470..

Hoult, NA and Lees, JM (2005) Long-term performance of a CFRP strap shear retrofitting system. In: Proceedings of the 7th International Symposium on Fibre Reinforced Polymer for Reinforced Concrete Structures, FRPRCS-7, -11-2005 to --, Kansas, US pp. 685-704..

Hoult, NA and Lees, JM (2004) Shear retrofitting of reinforced concrete beams using CFRP straps. In: 4th International Conference on Advanced Composite Materials in Bridges and Structures, 20-7-2004 to 23-7-2004, Calgary, Canada.

Lees, JM (2004) Combined pressure/tension behaviour of adhesive-bonded GFRP pipe joints. In: The 2nd International Conference on Advanced Polymer Composites for Structural Applications in Construction (ACIC2004), -4-2004 to -- pp. 377-383..

Terrasi, GP and Lees, JM (2004) Static and dynamic behaviour of CFRP prestressed concrete lighting columns. In: The 2nd International Conference on Advanced Polymer Composites for Structural Applications in Construction (ACIC2004), -4-2004 to -- pp. 420-427..

Agyei, BB and Lees, JM and Terrasi, GP (2003) Fatigue of high strength concrete beams pretensioned with CFRP tendons. In: The 6th International Symposium on FRP Reinforcement for Concrete Structures; Fibre-Reinforced Polymer Reinforcement for Concrete Structures, -7-2003 to -- pp. 935-944..

Kesse, G and Lees, JM (2003) Shear critical RC beams strengthened with CFRP straps. In: The 6th International Symposium on FRP Reinforcement for Concrete Structures (FRPRCS-6), -7-2003 to -- pp. 447-456..

Lees, JM and Makarov, G (2002) GFRP pipe joints reinforced using composite pins. In: The 1st International Conference on Advanced polymer composites for structural applications in construction, -4-2002 to -- pp. 291-300..

Kesse, G and Chan, C and Lees, JM (2001) Non-linear finite element analysis of RC beams prestressed with CFRP straps. In: 5th International Conference on Fibre-Reinforced Plastics for Reinforced Concrete Structures (FRPRCS-5), 16-7-2001 to 18-7-2001, Cambridge, UK pp. 281-290..

Winistoerfer, AU and Meier, U and Lees, JM (2001) CARBOSTRAP - Advanced composite tendons. In: ACUN-3 international composites conference; Technology convergence in composites applications, -2-2001 to -- pp. 24-30..

Lees, JM and Winistoefer, AU and Meier, U (2000) Behavior of concrete beams confined with prestressed carbon fiber reinforced plastic straps. In: The 3rd International Conference on Advanced Composite Materials in Bridges and Structures, -8-2000 to -- pp. 185-192..

Lees, JM and Burgoyne, CJ (1999) Design guidelines for concrete beams prestressed with partially-bonded fibre reinforced plastic tendons. In: 4th International Symposium on Fibre Reinforced Concrete Structures (FRPRCS-4), -10-1999 to -- pp. 807-815..

Lees, JM and Winistoerfer, AU and Meier, U (1999) Non-laminated pin-loaded carbon fibre reinforced plastic straps for the shear enhancement of concrete. In: 4th International Symposium on Fibre Reinforced Polymer for Reinforced Concrete Structures (FRPRCS-4), -10-1999 to -- pp. 985-993..

Lees, JM and Burgoyne, CJ (1997) Rigid body analysis of concrete beams pre-tensioned with partially-bonded AFRP tendons. In: 3rd International Symposium on Non-Metallic (FRP) Reinforcement for Concrete Structures (FRPRCS-3), -10-1997 to --, Sapporo, Japan pp. 759-766..

Lees, JM and Burgoyne, CJ (1996) The use of Aramid fibre reinforced plastics as prestressing tendons for concrete. In: Symposium on Post-tensioned Concrete Structures, -9-1996 to --, London, UK pp. 607-614..

Lees, JM and Burgoyne, CJ (1996) Influence of bond on rotation capacity of concrete pre-tensioned with AFRP. In: The 2nd International Conference on Advanced Composite Materials in Bridges and Structures, -8-1996 to --, Montreal, Canada pp. 901-908..

Lees, JM and Burgoyne, CJ (1995) Achieving optimum rotation capacity from concrete pretensioned with AFRP. In: The 2nd International Symposium Non-metallic (FRP) Reinforcement for Concrete Structures, -8-1995 to --, Ghent, Belgium.

Monograph

Terrasi, GP and Lees, JM (2006) CFRP prestressed concrete lighting columns: experimental bending/torsion behaviour. Technical Report. Cambridge University Engineering Department, Cambridge, UK.

Lees, JM (1998) Tensioned carbon fibre reinforced plastic non-laminated straps for shear enhancement of concrete - design parameters for prototype shear application. Technical Report. EMPA.

Lees, JM (1998) Tensioned carbon fibre reinforced plastic non-laminated straps for shear enhancement of concrete - development of tensioning system. Technical Report. EMPA.

Lees, JM (1998) Tensioned carbon fibre reinforced plastic non-laminated straps for shear enhancement of concrete - preliminary testing and analysis of strap and pad elements. Technical Report. EMPA.

Thesis

Lees, JM (1997) Flexure of concrete beams pre-tensioned with aramid FRPs. PhD thesis, UNSPECIFIED.

Lees, JM (1990) Explosive spalling of concrete in fires. Masters thesis, UNSPECIFIED.