Computers and Concrete

  • 제19권2호
  • /
  • Pages.179-189
  • /
  • 2017
  • /
  • 1598-8198(pISSN)
  • /
  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

A numerical study on behavior of CFRP strengthened shear wall with opening

  • 투고 : 2016.07.30
  • 심사 : 2016.12.01
  • 발행 : 2017.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

Concrete shear walls are one of the major structural lateral resisting systems in buildings. In some cases, due to the change in the occupancy of the structure or functional requirements like architectural and even mechanical ones, openings need to be provided and installed in structural walls after their construction. Providing these openings may significantly influence the structural behavior of the constructed wall. This paper considers the results of a nonlinear finite element analysis of shear walls with opening strengthened by carbon fiber reinforced polymer (CFRP) strips with different configurations. Details of bond-slip constitutive model of link elements to simulate the connections of FRP strips to concrete surface is presented. The proposed model in this research has been validated using experimental results available in the literature. The results indicated that the proposed configuration of CFRP strips significantly improved the lateral resistance and deformation capacity of the shear walls with opening.

키워드

참고문헌

  1. ABAQUS 6.12 (2012), ABAQUS User's Manual, Providence, Rhode Island, U.S.A.
  2. ACI 318 (2011), Building Code Requirements for Structural Concrete and Commentary, Farmington Hills, Michigan, U.S.A.
  3. ACI 440.2R (2008), Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures, Farmington Hills, Michigan, U.S.A.
  4. Altin, S., Anil, O ., Kopraman, Y. and Kara, M.E. (2013), "Hysteretic behavior of RC shear walls strengthened with CFRP strips", Compos. Part B: Eng., 44(1), 321-329. https://doi.org/10.1016/j.compositesb.2012.05.009
  5. ASCE 31 (2003), Seismic Evaluation of Existing Buildings, America Society of Civil Engineers (ASCE), Reston, Virginia, U.S.A.
  6. ASCE 41 (2006), Seismic Rehabilitation of Existing Buildings, America Society of Civil Engineers (ASCE), Reston, Virginia, U.S.A.
  7. Behfarnia, K. and Sayah, A. (2012), "FRP strengthening of shear walls with openings", Asian J. Civil Eng., 13(5), 691-704.
  8. Chen, W.F. (2007), Plasticity in Reinforced Concrete, J. Ross Publication, New York, U.S.A.
  9. Cruz-Noguez, C., Lau, D. and Sherwood, E. (2014), "Seismic behavior of RC shear walls with externally bonded FRP sheets: Analytical studies", J. Compos. Constr., 18(5), 04014011. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000466
  10. Cruz-Noguez, C., Lau, D., Sherwood, E., Hiotakis, S., Lombard, J. and Foo, S. (2014), "Seismic behavior of RC shear walls strengthened for in-plane bending using externally bonded FRP sheets", J. Compos. Constr., 19(1), 04014023. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000478
  11. Kim, S. and Vecchio, F. (2008), "Modeling of shear-critical reinforced concrete structures repaired with fiber-reinforced polymer composites", J. Struct. Eng., 134(8), 1288-1299. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:8(1288)
  12. Li, B. and Lim, C. (2010), "Tests on seismically damaged reinforced concrete structural walls repaired using fiberreinforced polymers", J. Compos. Constr., 14(5), 597-608. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000110
  13. Li, B., Qian, K. and Tran, C. (2013), "Retrofitting earthquakedamaged RC structural walls with openings by externally bonded FRP strips and sheets", J. Compos. Constr., 17(2), 259-270. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000336
  14. Li, Z.J., Balendra, T., Tan, K.H. and Kong, K.H. (2005), "Finite element modeling of cyclic behavior of shear wall structure retrofitted using GFRP", Proceedings of the Fiber-Reinforced Polymer Reinforcement for Concrete Structures, Michigan, U.S.A., January.
  15. Lombard, J. (1999), "Seismic strengthening and repair of reinforced concrete shear walls using externally-bonded carbon fibre tow sheets", M.S. Dissertation, Carleton University, Ottawa, Canada.
  16. Lu, X., Teng, J., Ye, L. and Jiang, J. (2007), "Intermediate crack debonding in FRP-strengthened RC beams: FE analysis and strength model", J. Compos. Constr., 11(2), 161-174. https://doi.org/10.1061/(ASCE)1090-0268(2007)11:2(161)
  17. Lu, X.Z., Teng, J.G., Ye, L.P. and Jiang, J.J. (2005), "Bond-slip models for FRP sheets/plates bonded to concrete", Eng. Struct., 27(6), 920-937. https://doi.org/10.1016/j.engstruct.2005.01.014
  18. Meftah, S.A., Yeghnem, R., Tounsi, A. and Adda, E.A. (2007), "Seismic behavior of RC coupled shear walls repaired with CFRP laminates having variable fibers spacing", Constr. Build. Mater., 21(8), 1661-1671. https://doi.org/10.1016/j.conbuildmat.2006.05.011
  19. Mostofinejad, D. and Mohammadi, A.M. (2012), "Effect of confining of boundary elements of slender RC shear wall by FRP composites and stirrups", Eng. Struct., 41, 1-13. https://doi.org/10.1016/j.engstruct.2012.03.019
  20. Reddiar, M.K.M. (2009), "Stress-strain model of unconfined and confined concrete and stress-block parameters", M.S. Dissertation, Texas A&M University, Texas, U.S.A.
  21. Rezaiefar, A. (2013), "Finite element modeling of cyclically loaded FRP retrofitted RC squat shear walls", M.S. Dissertation, Concordia University, Montreal, Canada.
  22. Sengupta, P. and Li, B. (2014), "Hysteresis behavior of reinforced concrete walls", J. Struct. Eng., 140(7), 04014030. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000927
  23. Shariq, M., Abbas, H., Irtaza, H. and Qamaruddin, M. (2008), "Influence of openings on seismic performance of masonry building walls", Build. Environ., 43(7), 1232-1340. https://doi.org/10.1016/j.buildenv.2007.03.005
  24. Tao, Y. and Chen, J. (2015), "Concrete damage plasticity model for modeling FRP-to-concrete bond behavior", J. Compos. Constr., 19(1), 04014026. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000482

피인용 문헌

  1. Strengthening of reinforced concrete shear walls with openings using carbon fiber-reinforced polymers pp.2008-6695, 2019, https://doi.org/10.1007/s40091-019-0216-6
  2. FE modeling of Partially Steel-Jacketed (PSJ) RC columns using CDP model vol.22, pp.2, 2017, https://doi.org/10.12989/cac.2018.22.2.143
  3. A numerical study on the seismic behavior of a composite shear wall vol.22, pp.3, 2018, https://doi.org/10.12989/cac.2018.22.3.279
  4. Reliability analysis of proposed capacity equation for predicting the behavior of steel-tube concrete columns confined with CFRP sheets vol.25, pp.5, 2020, https://doi.org/10.12989/cac.2020.25.5.383
  5. Numerical finite element study of strengthening of damaged reinforced concrete members with carbon and glass FRP wraps vol.28, pp.2, 2017, https://doi.org/10.12989/cac.2021.28.2.137