Abstract
It is a stringent challenge to swiftly rehabilitate and strengthen the concrete segments on the metro tunnel that are under the humid environment and vibration fatigue by the locomotives. By means of fatigue experiments under the constant amplitude loading, the repair materials (fiber reinforced polymer (FRP) and polymer matrix (PM)) which can be moisture proof and resist the cyclic load are introduced. Hereafter, a fatigue model of tilt’s fulcrum reinforced concrete (RC) segments under constant amplitude loading are proposed by the calibration of S-N curves through these fatigue test. The fatigue model explains for the (a) scope of pre-damage, (b) mechanical properties of the repaired concrete segments, such as the specific rupture times of cycle and stress-crack opening relation, and (c) effective plastic strain behavior of the RC segments. The results show that the purely PM is an excellent candidate for repairing the fatigue loaded damaged RC segment. It (L-4-2) had an average mechanical behavior for cyclic load bearing compared with the remaining specimens. On the other hand, the numerical model predictions had an approximately 96.00% of agreement with the corresponding test results.
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References
ACI 440.2R-17 (2017). Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures, ACI 440.2R-17, American Concrete Institute, Farmington Hills, MI, USA.
Al-Saoudi, A., Al-Mahaidi, R., Kalfat, R., and Cervenka, J. (2019). “Finite element investigation of the fatigue performance of FRP laminates bonded to concrete.” Composite Structures, Vol. 208, pp. 322–337, DOI: https://doi.org/10.1016/j.compstruct.2018.10.001.
Ameen, P. and Szymanski, M. (2006). Fatigue in plain concrete (Phenomenon and Methods of Analysis), MSc Thesis, Chalmers University of Technology, Goteborg, Sweden.
Amran, Y. M., Alyousef, R., Rashid, R. S., Alabduljabbar, H., and Hung, C. C. (2018). “Properties and applications of FRP in strengthening RC structures: A review.” Structures, Vol. 16, pp. 208–238, DOI: https://doi.org/10.1016/j.istruc.2018.09.008.
Banjara, N. K. and Ramanjaneyulu, K. (2019). “Investigations on behaviour of flexural deficient and CFRP strengthened reinforced concrete beams under static and fatigue loading.” Construction and Building Materials, Vol. 201, pp. 746–762, DOI: https://doi.org/10.1016/j.conbuildmat.2019.01.010.
Bigaud, D. and Ali, O. (2014). “Time-variant flexural reliability of RC beams with externally bonded CFRP under combined fatigue-corrosion actions.” Reliability Engineering & System Safety, Vol. 131, pp. 257–270, DOI: https://doi.org/10.1016/j.ress.2014.04.016.
Bogard, F., Lestriez, P., and Guo, Y. Q. (2008). “Numerical modeling of fatigue damage and fissure propagation under cyclic loadings.” International Journal of Damage Mechanics, Vol.17, No. 2, pp. 173–187, DOI: https://doi.org/10.1177/1056789508088961.
Charalambidi, B. G., Rousakis, T. C., and Karabinis, A. I. (2016). “Analysis of the fatigue behavior of reinforced concrete beams strengthened in flexure with fiber reinforced polymer laminates.” Composites Part B: Engineering, Vol. 96, pp. 69–78, DOI: https://doi.org/10.1016/j.compositesb.2016.04.014.
COMSOL Multiphysics 5.4 (2018). Bracket-fatigue evaluation. COMSOL Multiphysics 5.4, https://doi.org/www.comsol.kr/release/5.4.
Cornelissen, H. A. W. and Reinhardt, H. W. (1984). “Uniaxial tensile fatigue failure of concrete under constant-amplitude and programme loading.” Magazine of Concrete Research, Vol. 36, No. 129, pp. 216–226, DOI: https://doi.org/10.1680/macr.1984.36.129.216.
Del Vecchio, C., Di Ludovico, M., Prota, A., and Manfredi, G. (2016). “Modelling beam-column joints and FRP strengthening in the seismic performance assessment of RC existing frames.” Composite Structures, Vol. 142, pp. 107–116, DOI: https://doi.org/10.1016/j.compstruct.2016.01.077.
De Maio, U., Fabbrocino, F., Greco, F., Leonetti, L., and Lonetti, P. (2019). “A study of concrete cover separation failure in FRP-plated RC beams via an inter-element fracture approach.” Composite Structures, Vol. 212, pp. 625–636, DOI: https://doi.org/10.1016/j.compstruct.2019.01.025.
Di Sarno, L., Del Vecchio, C., Maddaloni, G., and Prota, A. (2017). “Experimental response of an existing RC bridge with smooth bars and preliminary numerical simulations.” Engineering Structures, Vol. 136, pp. 355–368, DOI: https://doi.org/10.1016/j.engstruct.2017.01.052.
DL/T 5085-1999 (1999). Code for Design of Steel-concrete Composite Structure, China National Standards DL/T 5085-1999, Ministry of Commerce of the People’s Republic of China, Beijing, China.
DL/T 5126-2001 (2001). Test code on polymer modified cement mortar, China National Standards DL/T 5126-2001, China Electric Power Publishing House, Beijing, China.
Eng, T. Z., Wu, X., Gao, P., Zhou, L., Geng, F., Yang, W., Zhu, A., and Zhang, L. (2018). “Secondary cracks and mechanical behavior prediction of concrete segments after FRP confinement.” Iranian Journal of Science and Technology, Transactions of Civil Engineering, pp. 1–11, DOI: https://doi.org/10.1007/s40996-018-0219-8.
Fang, H., Bai, Y., Liu, W., Qi, Y., and Wang, J. (2019). “Connections and structural applications of fibre reinforced polymer composites for civil infrastructure in aggressive environments.” Composites Part B: Engineering, Vol. 164, pp. 129–143, DOI: https://doi.org/10.1016/j.compositesb.2018.11.047.
Gao, L., Zhang, F., Liu, J. Q., and Lu, X. R. (2018). “Whole-process bond characteristics of FRP-to-concrete joint under pressure.” KSCE Journal of Civil Engineering, Vol. 22, No. 12, pp. 5114–5122, DOI: https://doi.org/10.1007/s12205-018-0177-5.
Garzón-Roca, J., Sena-Cruz, J. M., Fernandes, P., and Xavier, J. (2015). “Effect of wet-dry cycles on the bond behaviour of concrete elements strengthened with NSM CFRP laminate strips.” Composite Structures, Vol. 132, pp. 331–340, DOI: https://doi.org/10.1016/j.compstruct.2015.05.053.
GB 50017-2003 (2003). Code for Design of Steel Structures, China National Standards GB 50017-2003, Ministry of Housing and Urban-Rural Development of the People’s Republic of China (MOHURD), Beijing, China.
GB 50204-2015 (2015). Code for acceptance of constructional quality of concrete structures, China National Standards GB 50204-2015, Ministry of Housing and Urban-Rural Development of the People’s Republic of China (MOHURD), Beijing, China.
GB/T 50081-2016 (2017). Standard for test method of mechanical properties on ordinary concrete, China National Standards GB/T 50081-2016, Ministry of Housing and Urban-Rural Development of the People’s Republic of China (MOHURD), Beijing, China.
Guo, X., Yu, B., Huang, P., Zheng, X., and Zhao, C. (2018). “J-integral approach for main crack propagation of RC beams strengthened with prestressed CFRP under cyclic bending load.” Engineering Fracture Mechanics, Vol. 200, pp. 465–478, DOI: https://doi.org/10.1016/j.engfracmech.2018.08.003.
Hobbacher, A. (2016). Recommendations for fatigue design of welded joints and components (Second Ed.), IIW Collection, Springer, Switzerland, pp. 37–62, DOI: https://doi.org/10.1007/978-3-319-23757-2.
Isojeh, B., El-Zeghayar, M., and Vecchio, F. J. (2017). “High-cycle fatigue life prediction of reinforced concrete deep beams.” Engineering Structures, Vol. 150, pp. 12–24, DOI: https://doi.org/10.1016/j.engstruct.2017.07.031.
Jawdhari, A., Peiris, A., and Harik, I. (2018). “Experimental study on RC beams strengthened with CFRP rod panels.” Engineering Structures, Vol. 173, pp. 693–705, DOI: https://doi.org/10.1016/j.engstruct.2018.06.105.
JG/T 336-2011 (2012). Repair of concrete structures using polymer cement mortar, China National Standards JG/T 336-2011, Ministry of Housing and Urban-Rural Development of the People’s Republic of China (MOHURD), Beijing, China.
Lindorf, A. and Curbach, M. (2010). “S-N curves for fatigue of bond in reinforced concrete structures under transverse tension.” Engineering Structures, Vol. 32, No. 10, pp. 3068–3074, DOI: https://doi.org/10.1016/j.engstruct.2010.05.025.
López-González, J. C., Fernández-Gómez, J., and González-Valle, E. (2012). “Effect of adhesive thickness and concrete strength on FRP-concrete bonds.” Journal of Composites for Construction, Vol. 16, No. 6, pp. 705–711, DOI: https://doi.org/10.1061/(ASCE)CC.1943-5614.0000303.
Murthy, A. R., Karihaloo, B. L., Rani, P. V., and Priya, D. S. (2018). “Fatigue behaviour of damaged RC beams strengthened with ultra high performance fibre reinforced concrete.” International Journal of Fatigue, Vol. 116, pp. 659–668, DOI: https://doi.org/10.1016/j.ijfatigue.2018.06.046.
Nguyen, N. H., Bui, H. H., Kodikara, J., Arooran, S., and Darve, F. (2019). “A discrete element modelling approach for fatigue damage growth in cemented materials.” International Journal of Plasticity, Vol. 112, pp. 68–88, DOI: https://doi.org/10.1016/j.ijplas.2018.08.007.
Oudah, F. and El-Hacha, R. (2013). “Analytical fatigue prediction model of RC beams strengthened in flexure using prestressed FRP reinforcement.” Engineering Structures, Vol. 46, pp. 173–183, DOI: https://doi.org/10.1016/j.engstruct.2012.07.020.
Peng, H., Zhang, J., Shang, S., Liu, Y., and Cai, C. S. (2016). “Experimental study of flexural fatigue performance of reinforced concrete beams strengthened with prestressed CFRP plates.” Engineering Structures, Vol. 127, pp. 62–72, DOI: https://doi.org/10.1016/j.engstruct.2016.08.026.
Skar, A., Poulsen, P. N., and Olesen, J. F. (2017). “A simple model for fatigue crack growth in concrete applied to a hinge beam model.” Engineering Fracture Mechanics, Vol. 181, pp. 38–51, DOI: https://doi.org/10.1016/j.engfracmech.2017.06.018.
Tong, L., Liu, B., and Zhao, X. L. (2017). “Numerical study of fatigue behaviour of steel reinforced concrete (SRC) beams.” Engineering Fracture Mechanics, Vol. 178, pp. 477–496, DOI: https://doi.org/10.1016/j.engfracmech.2017.02.017.
Umair Saleem, M., Khurram, N., Nasir Amin, M., and Khan, K. (2019). “Finite element simulation of RC beams under flexure strengthened with different layouts of externally bonded fiber reinforced polymer (FRP) sheets.” Revista de La Construcción, Vol. 17, No. 3, pp. 383–400, DOI: https://doi.org/10.7764/rdlc.17.2.383.
Zheng, X. H., Huang, P. Y., Chen, G. M., and Tan, X. M. (2015). “Fatigue behavior of FRP-concrete bond under hygrothermal environment.” Construction and Building Materials, Vol. 95, pp. 898–909, DOI: https://doi.org/10.1016/j.conbuildmat.2015.07.172.
Zhu, Z., Zhu, E., Ni, Y., and Li, D. (2019). “Flexural fatigue behavior of large-scale beams strengthened with side near surface mounted (SNSM) CFRP strips.” Engineering Structures, Vol. 180, pp. 134–147, DOI: https://doi.org/10.1016/j.engstruct.2018.11.039.
Acknowledgements
The authors would like to gratefully acknowledge the financial support provided by the Post-doctoral fund of China (No. 2018M630559), High-level Talent Project Funding Scheme of Jiangsu (No. XCL-CXTD 007), Traffic construction science and technology project of Shanxi (No. 16-2-08), and Nantong city construction group co. LTD.
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Eng, T.Z., Gao, P., Zhu, Q. et al. Experimental and Numerical Modeling on Fatigue Damage in FRP and PM Confinement Tilt’s Fulcrum RC Segments under Humid and Constant Amplitude Loading. KSCE J Civ Eng 23, 3409–3419 (2019). https://doi.org/10.1007/s12205-019-0353-2
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DOI: https://doi.org/10.1007/s12205-019-0353-2