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http://dx.doi.org/10.12989/sem.2008.30.2.247

Finite element analysis of shear-deficient RC beams strengthened with CFRP strips/sheets  

Lee, H.K. (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
Ha, S.K. (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
Afzal, M. (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
Publication Information
Structural Engineering and Mechanics / v.30, no.2, 2008 , pp. 247-261 More about this Journal
Abstract
Performance of shear-deficient reinforced concrete (RC) beams strengthened with carbon fiber-reinforced polymer (CFRP) strips/sheets is analyzed through numerical simulations on four-point bending tests. The numerical simulations are carried out using the finite element (FE) program ABAQUS. A micromechanics-based constitutive model (Liang et al. 2006) is implemented into the FE program ABAQUS to model CFRP strips/sheets. The predicted results are compared with experiment data (Khalifa and Nanni 2002) to assess the accuracy of the proposed FE analysis approach. A series of numerical tests are conducted to investigate the influence of stirrup lay-ups on the shear strengthening performance of the CFRP strips/sheets, to illustrate the influence of the damage parameters on the microcrack density evolution in concrete, and to investigate the shear and flexural strengthening performance of CFRP strips/ sheets. It has been shown that the proposed FE analysis approach is suitable for the performance prediction of RC beams strengthened with CFRP strips/sheets.
Keywords
finite element analysis; performance prediction; CFRP strips/sheets; micromechanics-based constitutive model; load-deflection curve;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 5  (Related Records In Web of Science)
Times Cited By SCOPUS : 5
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