Experimental and FE study on RC one-way slabs upgraded with FRP composites

详细信息    查看全文

• 作者：Hussein M. Elsanadedy ; Tarek H. Almusallam…
• 关键词：fiber reinforced polymer ; concrete one ; way slabs ; flexural strengthening ; finite element modeling
• 刊名：KSCE Journal of Civil Engineering
• 出版年：2015
• 出版时间：May 2015
• 年：2015
• 卷：19
• 期：4
• 页码：1024-1040
• 全文大小：2,311 KB
• 参考文献：ACI Committee 318 (2011). Building code requirements for structural concrete and commentary, ACI 318-11, American Concrete Institute, Detroit, MI, USA.
  ACI Committee 440 (2008). Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures, ACI 440.2R-08, American Concrete Institute, Detroit, MI, USA.
  Al-Rousan, R., Issa, M., and Shabila, H. (2012). 鈥淧erformance of reinforced concrete slabs strengthened with different types and configurations of CFRP.鈥?Composites: Part B, Vol. 43, pp. 510鈥?21, DOI: 10.鈥?016/鈥媕.鈥媍ompositesb.鈥?011.鈥?8.鈥?50 .View Article
  Aprile, A. and Feo, L. (2007). 鈥淐oncrete cover rip-off of R/C beams strengthened with FRP composites.鈥?Compos. Part B: Eng, Vol. 38, Nos. 5鈥?, pp. 759鈥?71, DOI: 10.鈥?016/鈥媕.鈥媍ompositesb.鈥?006.鈥?7.鈥?15 .View Article
  Arduini, M., Di Tommaso, A., and Nanni, A. (1997). 鈥淏rittle failure in FRP plate and sheet bonded beams.鈥?ACI Struct. J., Vol. 94, No. 4, pp. 363鈥?70.
  Arduini, M., Nanni, A., and Romagnolo, M. (2004). 鈥淧erformance of one-way reinforced concrete slabs with externally bonded fiberreinforced polymer strengthening.鈥?ACI Struct. J., Vol. 101, No. 2, pp. 193鈥?01.
  Belytschko, T. B. and Tsay, C. S. (1981). 鈥淓xplicit algorithms for nonlinear dynamics of shells.鈥?Journal of Applied Mechanics, Applied Mechanics Division, ASME, Vol. 48, pp. 209鈥?31.
  Buyukozturk, O. and Hearing, B. (1998). 鈥淔ailure behavior of precracked concrete beams retrofitted with FRP.鈥?J. Compos. Constr., ASCE, Vol. 2, No. 3, pp. 138鈥?44, DOI: 10.鈥?061/鈥?ASCE)1090-0268(1998)2:鈥?(138) .View Article
  Chang, F. K. and Chang, K. Y. (1987). 鈥淎 progressive damage model for laminated composites containing stress concentration.鈥?J. Composite Materials, Vol. 21, pp. 834鈥?55, DOI: 10.鈥?177/鈥?021998387021.鈥?904 .View Article
  Chen, G. M., Chen, J. F., and Teng, J. G. (2012). 鈥淥n the finite element modelling of RC beams shear strengthened with FRP.鈥?Constr. & Build. Mater., Vol. 32, pp. 13鈥?6, DOI: 10.鈥?016/鈥媕.鈥媍onbuildmat.鈥?010.鈥?1.鈥?01 .View Article
  Chen, J. F. and Teng, J. G. (2001). 鈥淎nchorage strength models for FRP and steel plates bonded to concrete.鈥?J. of Struc. Eng., ASCE, Vol. 127, No. 7, pp. 784鈥?91, DOI: 10.鈥?061/鈥?ASCE)0733-9445(2001)127:鈥?(784) .View Article
  Elsanadedy, H. M, Almusallam, T. H., Alsayed, S. H., and Al-Salloum, Y. A. (2013). 鈥淔lexural strengthening of RC beams using textile reinforced mortar 鈥?Experimental and numerical study.鈥?Compos. Struct., Vol. 97, pp. 40鈥?5, DOI: 10.鈥?016/鈥媕.鈥媍ompstruct.鈥?012.鈥?9.鈥?53 .View Article
  Elsayed, W., Ebead, U. A., and Neale, K. W. (2007). 鈥淚nterfacial behavior and debonding failures in FRP-strengthened concrete slabs.鈥?J. Compos. Constr., ASCE, Vol. 11, No. 6, pp. 619鈥?28, DOI: 10.鈥?061/鈥?ASCE)1090-0268(2007)11:鈥?(619) .View Article
  Erki, M. A. and Heffernan, P. J. (1995). 鈥淩einforced concrete slabs externally strengthened with fiber-reinforced plastic materials.鈥?Proc. of the 2nd Int. RILEM Symposium FRPRCS-2, pp. 509鈥?16.
  Hu, H-T., Lin, F-M., and Jan, Y-Y. (2004). 鈥淣onlinear finite element analysis of reinforced concrete beams strengthened by fibre-reinforced plastics.鈥?Compos. Struct., Vol. 63, Nos. 3鈥?, pp. 271鈥?81, DOI: 10.鈥?016/鈥婼0263-8223(03)0.鈥?174-0 .View Article
  Issa, M. I., Islam, M. S., Lesile, M., Abdulla, H., and Valle, C. D. (2000). 鈥淪eismic retrofit of reinforced concrete members with CFRP composites.鈥?Proc. of the 2nd Conf. on Seismic Repair and Rehabilitation of Structures (SRRS2), pp. 3鈥?1.
  Issa, M. I., Shabila, H., and Issa, M. A. (2003). 鈥淪tructural behavior of reinforced concrete beams strengthened with CFRP subjected to static and fatigue loading.鈥?Proc. of the Structural Faults and Repair Conference, UK, 15p.
  Kim, Y. J., Wight, R. G., and Green, M. F. (2008). 鈥淔lexural strengthening of RC beams with prestressed CFRP sheets: Using non-metallic anchor systems.鈥?J. Compos. Constr., ASCE, Vol. 12, No. 1, pp. 44鈥?2, DOI: 10.鈥?061/鈥?ASCE)1090-0268(2008)12:鈥?(44) .View Article
  Lesmana, C. and Hu, H-T. (2014). 鈥淧arametric analyses of square reinforced concrete slabs strengthened by fiber-reinforced plastics.鈥?Constr. & Build. Mater., Vol. 53, pp. 294鈥?04, DOI: 10.鈥?016/鈥媕.鈥媍onbuildmat.鈥?013.鈥?1.鈥?83 .View Article
  Livermore Software Technology Corporation (LSTC) (2007). LS-DYNA user鈥檚 keyword manual (nonlinear dynamic analysis of structures in three dimensions): Volume 1, Version 971, LSTC, Livermore, California, USA.
  Lu, X. Z., Teng, J. G., Ye, L. P., and Jiang, J. J. (2005). 鈥淏ond-slip models for sheets/plates bonded to concrete.鈥?Eng. Struc., Vol. 27, No. 6, pp. 920鈥?37, DOI: 10.鈥?016/鈥媕.鈥媏ngstruct.鈥?005.鈥?1.鈥?14 .View Article
  Lu, X. Z., Teng, J. G., Ye, L. P., and Jiang, J. J. (2007). 鈥淚ntermediate crack debonding in FRP-strengthened RC beams: FE analysis and strength model.鈥?J. Compos. Constr., ASCE, Vol. 11, pp. 161鈥?74, DOI: 10.鈥?061/鈥?ASCE)1090-0268(2007)11:鈥?(161) .View Article
  Lundquist, J., Nordin, H., T盲ljsten, B., and Olafsson, T. (2005). 鈥淣umerical analysis of concrete beams strengthened with CFRP 鈥?A study of anchorage lengths.鈥?In: FRP in Construction, Proc. of the Int. Symp. of Bond Behaviour of FRP in Structures, pp. 247鈥?54.
  Mazzotti, C., Savoia, M., and Ferracuti, B. (2008). 鈥淎n experimental study on delamination of FRP plates bonded to concrete.鈥?Constr. & Build. Mater., Vol. 22, pp. 1409鈥?421, DOI: 10.鈥?016/鈥媕.鈥媍onbuildmat.鈥?007.鈥?4.鈥?09 .View Article
  Meier, U. (1992). 鈥淐arbon fiber-reinforced polymers: Modern materials in bridge engineering.鈥?Struct. Eng. Int., Vol. 92, No. 1, pp. 7鈥?2, DOI: 10.鈥?749/鈥?016866927806.鈥?020 .MathSciNet View Article
  Meier, U. (1995). 鈥淪trengthening of structures using carbon fibre/epoxy composites.鈥?Constr. & Build. Mater., Vol. 9, No. 6, pp. 341鈥?51, DOI: 10.鈥?016/鈥?950-0618(95)00071.鈥? .View Article
  Mosallam, A. S. and Mosalam, K. M. (2003). 鈥淪trengthening of twoway concrete slabs with FRP composite laminates.鈥?Constr. & Build. Mater., Vol. 17, pp. 43鈥?4, DOI: 10.鈥?016/鈥婼0950-0618(02)00092.鈥? .View Article
  Murray, Y. D. (2007). User鈥檚 manual for LS-DYNA concrete material model 159, Report No. FHWA-HRT-05-062, US Department of Transportation, Federal Highway Administration National Transportation Systems Center, USA.
  Murray, Y. D., Abu-Odeh, A., and Bligh, R. (2007). Evaluation of concrete material model 159, Report No. FHWA-HRT-05-063, US Department of Transportation, Federal Highway Administration National Transportation Systems Center, USA.
  Norris, T., Saadatmanesh, H., and Ehsani, M. R. (1997). 鈥淪hear and flexural strengthening of R/C beams with carbon fiber sheets.鈥?J. Struct. Eng., ASCE, Vol. 123, No. 7, pp. 903鈥?1, DOI: 10.鈥?061/鈥?ASCE)0733-9445(1997)123:鈥?(903) .View Article
  Obaidat, Y. T., Heyden, S., and Dahlblom, O. (2010). 鈥淭he effect of CFRP and CFRP/concrete interface models when modeling retrofitted RC beams with FEM.鈥?Compos. Struct., Vol. 92, pp. 1391鈥?398, DOI: 10.鈥?016/鈥媕.鈥媍ompstruct.鈥?009.鈥?1.鈥?08 .View Article
  Oehlers, D. J., Park, S. M., and Ali, M. S. M. (2003). 鈥淎 structural engineering approach to adhesive bonding longitudinal plates to RC beams and slabs.鈥?Composites Part A, Vol. 34, pp. 887鈥?97, DOI: 10.鈥?016/鈥婼1359-835X(03)00153.鈥? .View Article
  Santhakumar, R., Chandrasekaran, E., and Dhanaraj, R. (2004). 鈥淎nalysis of retrofitted reinforced concrete shear beams using carbon fibre composite.鈥?Electron. J. Struct. Eng., Vol. 4, pp. 66鈥?4.
  Sebastian, W. M. (2001). 鈥淪ignificance of midspan debonding failure in FRP-plated concrete beams.鈥?J. Struct. Eng., ASCE, Vol. 127, No. 7, pp. 792鈥?98, DOI: 10.鈥?061/鈥?ASCE)0733-9445(2001)127:鈥?(792) .View Article
  Seim, W., Horman, M., Karbhari, V., and Seible, F. (2001). 鈥淓xternal FRP poststrengthening of scaled concrete slabs.鈥?J. Compos. Constr., ASCE, Vol. 5, pp. 67鈥?5, DOI: 10.鈥?061/鈥?ASCE)1090-0268(2001)5:鈥?(67) .View Article
  Shahway, M., Beitelman, T., Arockiasamy, M., and Sowrirajan, R. (2001). 鈥淔lexural strengthening with carbon fiber-reinforced polymer composites of preloaded full-scale girders.鈥?ACI Struct. J., Vol. 98, No. 5, pp. 735鈥?42.
  Smith, S.T. and Teng, J.G. (2001). 鈥淚nterfacial stresses in plate beams.鈥?Eng. Struct., Vol. 23, No. 7, pp. 857鈥?71, DOI: 10.鈥?016/鈥婼0141-0296(00)00090.鈥? .View Article
  Smith, S. T., Hu, S., Kim, S. J., and Seracino, R. (2011). 鈥淔RP-strengthened RC slabs anchored with FRP anchors.鈥?Eng. Struct., Vol. 33, No. 4, pp. 1075鈥?087, DOI: 10.鈥?016/鈥媕.鈥媏ngstruct.鈥?010.鈥?1.鈥?18 .View Article
  Tan, K. Y. (2003). Evaluation of externally bonded CFRP systems for the strengthening of RC slabs, MSc Thesis, University of Missouri-Rolla, 141p.View Article
  
• 作者单位：Hussein M. Elsanadedy (1)
  Tarek H. Almusallam (2)
  Saleh H. Alsayed (2)
  Yousef A. AL-Salloum (2)
  
  1. Specialty Units for Safety and Preservation of Structures, Dept. of Civil Eng., King Saud University, Riyadh, 11421, Saudi Arabia
  2. Dept. of Civil Engineering, King Saud University, Riyadh, 11421, Saudi Arabia
  
• 刊物类别：Engineering
• 刊物主题：Civil Engineering
  Industrial Pollution Prevention
  Automotive and Aerospace Engineering and Traffic
  Geotechnical Engineering
  
• 出版者：Korean Society of Civil Engineers
• ISSN：1976-3808

文摘

The use of externally bonded Fiber Reinforced Polymer (FRP) composites as a means of upgrading the flexural capacity of Reinforced Concrete (RC) one-way slabs is experimentally and numerically investigated in this study. A total of four groups of eight slabs were tested under four-point bending. The two slabs of the first group were left unstrengthened to be used as control specimens. The two slabs of the second group were externally strengthened with adhesively bonded pultruded, pre-cured CFRP plates. The four slabs of the last two groups were externally upgraded with unidirectional carbon (or E-glass) fiber fabric impregnated with an epoxy resin. In addition to the experimental program, a numerical investigation utilizing nonlinear Finite Element (FE) analysis was conducted using LS-DYNA software. Besides the eight slabs tested in this study, another eleven slabs were collected from the literature for the purpose of finite element validation. A comparison was made between the experimental and numerical results and good agreement was achieved. Based on FE validation, the numerical analysis was extended to include additional cases to study the effect of axial FRP stiffness and FRP-to-concrete width ratio on the flexural performance of upgraded slabs. As a result of the numerical study, new stiffness and reinforcement parameters were introduced in this research. These parameters were employed in the development of two new formulas for predicting the FRP debonding strain and percent gain in flexural capacity of FRP-strengthened slabs.