Investigating the Flexural Properties of Reinforced Concrete T-Beams Strengthened with High-Strength Steel Wire Mesh and Polyurethane Cement
Publication: Journal of Bridge Engineering
Volume 29, Issue 5
Abstract
The incorporation of high-strength steel wire mesh and polyurethane cement (HSSWM–PUC) has been identified as an effective approach for enhancing existing reinforced structures. This study comprehensively examined the flexural performance of reinforced concrete (RC) T-beams fortified with HSSWM–PUC composite material, proposing an accurate formula to calculate flexural capacity. This formula took into account various factors such as the strengthening ratio of HSSWM, laminate thickness, the type of bonding anchorage material, the presence of end anchorage, and the degree of initial damage. Flexural tests were conducted on one contrast beam and six reinforced beams within the scope of this research. Subsequent analyses revealed that the application of HSSWM–PUC significantly elevates the flexural capacity of both damaged and undamaged beams. This indicates that the load-bearing capacity correspondingly improves as the PUC thickness increases. With an increase in PUC thickness from 20 to 30 mm, the reinforced beam showed a 34% improvement in ultimate load and a 31.7% increase in yield load. Compared under similar parameters, beams strengthened with HSSWM–PUC showed a 43% higher cracking load than HSSWM–PM, especially with eight longitudinal high-strength steel wire ropes and a 20-mm-thick PUC layer. Additionally, using a U-shaped anchorage at the end provided a 20% advantage. A further merit of the HSSWM–PUC approach lies in its capability to both restrain the formation of concrete cracks and retard the progression of such defects, thereby fortifying the structural integrity. The observed failure mode was predominantly flexural, distinctly avoiding the common peeling failure witnessed between strengthening laminates and concrete. This suggests that HSSWM–PUC stands as a credible solution for amplifying the durability and lifespan of RC structures.
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Data Availability Statement
All data, models, and codes generated or used during this study appear in the published article.
Acknowledgments
The authors are grateful for the financial support of the Doctoral Start-up Foundation of Liaoning Province (Project No. 2021-BS-168).
References
Bergamo, O., M. Pignat, and C. Puca. 2018. “Passive methods for the fast seismic characterization of structures: The case of Silea Bridge.” Int. J. Civ. Eng. 16: 807–822. https://doi.org/10.1007/s40999-017-0204-9.
De Lorenzis, L., and J. G. Teng. 2007. “Near-surface mounted FRP reinforcement: An emerging technique for strengthening structures.” Composites, Part B 38 (2): 119–143. https://doi.org/10.1016/j.compositesb.2006.08.003.
Emara, M., A. El-Zohairy, M. Fekry, and M. Husain. 2022. “Effect of using ECC layer on the flexural performance of RC beams previously strengthened with EB CFRP laminates.” Sustainability 14 (24): 16990. https://doi.org/10.3390/su142416990.
Fischer, G., and V. C. Li. 2007. “Effect of fiber reinforcement on the response of structural members.” Eng. Fract. Mech. 74 (1–2): 258–272. https://doi.org/10.1016/j.engfracmech.2006.01.027.
Guo, R., Y. Ren, M. Li, P. Hu, M. Du, and R. Zhang. 2021. “Experimental study on flexural shear strengthening effect on low-strength RC beams by using FRP grid and ECC.” Eng. Struct. 227: 111434. https://doi.org/10.1016/j.engstruct.2020.111434.
Hussain, H. K., L. Z. Zhang, and G. W. Liu. 2013. “An experimental study on strengthening reinforced concrete T-beams using new material poly-urethane-cement (PUC).” Constr. Build. Mater. 40: 104–117. https://doi.org/10.1016/j.conbuildmat.2012.09.088.
Jiang, J., Y. Cui, and Z. Han. 2023. “Experimental study and analysis-oriented model of PET FRP confined ECC cylinders under monotonic axial compression.” Eng. Struct. 280: 115610. https://doi.org/10.1016/j.engstruct.2023.115610.
Li, V. C. 2003. “On engineered cementitious composites (ECC) a review of the material and its applications.” J. Adv. Concr. Technol. 1 (3): 215–230. https://doi.org/10.3151/jact.1.215.
Li, Y. Y., B. Guo, and J. Liu. 2014. “Research on reinforced concrete beam enlarged cross section method experiment and finite element simulation.” Appl. Mech. Mater. 638–640: 208–213. https://doi.org/10.4028/www.scientific.net/AMM.638-640.208.
Liu, Z.-Q., Z.-X. Guo, and Y. Ye. 2022. “Flexural behaviour of RC beams strengthened with prestressed steel wire ropes polymer mortar composite.” J. Asian Archit. Build. Eng. 21 (1): 48–65. https://doi.org/10.1080/13467581.2021.1928508.
Lu, C., J. Wang, C. K. Y. Leung, Y. Yao, and B. Yu. 2023. “Micromechanics-based model of single crack propagation in engineered cementitious composites (ECC).” Constr. Build. Mater. 369: 130519. https://doi.org/10.1016/j.conbuildmat.2023.130519.
Qeshta, I. M. I., P. Shafigh, and M. Z. Jumaat. 2015. “Flexural behaviour of RC beams strengthened with wire mesh-epoxy composite.” Constr. Build. Mater. 79: 104–114. https://doi.org/10.1016/j.conbuildmat.2015.01.013.
Rahman, M. M., M. Z. Jumaat, M. A. Rahman, and I. M. I. Qeshta. 2015. “Innovative hybrid bonding method for strengthening reinforced concrete beam in flexure.” Constr. Build. Mater. 79: 370–378. https://doi.org/10.1016/j.conbuildmat.2014.12.081.
Ranade, R., V. C. Li, and W. F. Heard. 2015. “Tensile rate effects in high strength-high ductility concrete.” Cem. Concr. Res. 68: 94–104. https://doi.org/10.1016/j.cemconres.2014.11.005.
Sattarifar, A. R., M. K. Sharbatdar, and A. Dalvand. 2015. “RC connections strengthened with FRP sheets using grooves on the surface.” Int. J. Civ. Eng. 13 (4): 432–443. https://doi.org/10.22068/IJCE.13.4.432.
Tawfek, A. M., Z. Ge, H. Yuan, N. Zhang, H. Zhang, Y. Ling, Y. Guan, and B. Šavija. 2023. “Influence of fiber orientation on the mechanical responses of engineering cementitious composite (ECC) under various loading conditions.” J. Build. Eng. 63: 105518. https://doi.org/10.1016/j.jobe.2022.105518.
Tian, Y., S. Shi, K. Jia, and S. Hu. 2015. “Mechanical and dynamic properties of high strength concrete modified with lightweight aggregates presaturated polymer emulsion.” Constr. Build. Mater. 93: 1151–1156. https://doi.org/10.1016/j.conbuildmat.2015.05.015.
Wang, X., G. Yang, W. Qian, K. Li, and J. Zhu. 2021. “Tensile behavior of high-strength stainless steel wire rope (HSSSWR)-reinforced ECC.” Int. J. Concr. Struct. Mater. 15 (1): 1–15. https://doi.org/10.1186/s40069-021-00480-x.
Xing, G., T. Wu, B. Liu, H. Huang, and S. Gu. 2010. “Experimental investigation of reinforced concrete T-beams strengthened with steel wire mesh embedded in polymer mortar overlay.” Adv. Struct. Eng. 13 (1): 69–79. https://doi.org/10.1260/1369-4332.13.1.69.
Xinling, W., L. Pengcheng, Q. Wenwen, and L. Ke. 2022. “Study on flexural bearing capacity of high strength stainless steel wire strand mesh reinforced ECC thin plate.” J. Build. Struct. 43 (1): 164–172.
Yang, X., W.-Y. Gao, J.-G. Dai, and Z.-D. Lu. 2020. “Shear strengthening of RC beams with FRP grid-reinforced ECC matrix.” Compos. Struct. 241: 112120. https://doi.org/10.1016/j.compstruct.2020.112120.
Yang, X., W.-Y. Gao, J.-G. Dai, Z.-D. Lu, and K.-Q. Yu. 2018. “Flexural strengthening of RC beams with CFRP grid-reinforced ECC matrix.” Compos. Struct. 189: 9–26. https://doi.org/10.1016/j.compstruct.2018.01.048.
Yuan, F., M. Chen, and J. Pan. 2020. “Flexural strengthening of reinforced concrete beams with high-strength steel wire and engineered cementitious composites.” Constr. Build. Mater. 254: 119284. https://doi.org/10.1016/j.conbuildmat.2020.119284.
Zamani Ahari, G., and K. Yamaguchi. 2022. “Experimental study of in-plane hysteretic behavior of unreinforced masonry walls retrofitted with engineered cementitious composites (ECC).” Eur. J. Environ. Civ. Eng. 26 (16): 8301–8320. https://doi.org/10.1080/19648189.2021.2023652.
Zeng, J.-J., W.-B. Zeng, Y.-Y. Ye, J. Liao, Y. Zhuge, and T.-H. Fan. 2022. “Flexural behavior of FRP grid reinforced ultra-high-performance concrete composite plates with different types of fibers.” Eng. Struct. 272: 115020. https://doi.org/10.1016/j.engstruct.2022.115020.
Zhang, K., and Q. Sun. 2018a. “The use of wire mesh-polyurethane cement (WM-PUC) composite to strengthen RC T-beams under flexure.” J. Build. Eng. 15: 122–136. https://doi.org/10.1016/j.jobe.2017.11.008.
Zhang, K., and Q. Sun. 2018b. “Experimental study of reinforced concrete T-beams strengthened with a composite of prestressed steel wire ropes embedded in polyurethane cement (PSWR–PUC).” Int. J. Civ. Eng. 16: 1109–1123. https://doi.org/10.1007/s40999-017-0264-x.
Zhang, S. S., T. Yu, and G. M. Chen. 2017. “Reinforced concrete beams strengthened in flexure with near-surface mounted (NSM) CFRP strips: Current status and research needs.” Composites, Part B 131: 30–42. https://doi.org/10.1016/j.compositesb.2017.07.072.
Zheng, Y.-Z., W.-W. Wang, and J. C. Brigham. 2016. “Flexural behaviour of reinforced concrete beams strengthened with a composite reinforcement layer: BFRP grid and ECC.” Constr. Build. Mater. 115: 424–437. https://doi.org/10.1016/j.conbuildmat.2016.04.038.
Zheng, Y.-Z., W.-W. Wang, K. M. Mosalam, Q. Fang, L. Chen, and Z.-F. Zhu. 2020. “Experimental investigation and numerical analysis of RC beams shear strengthened with FRP/ECC composite layer.” Compos. Struct. 246: 112436. https://doi.org/10.1016/j.compstruct.2020.112436.
Zhou, C., W. Wang, Y. Zheng, X. Liu, H. Cao, and Y. Hui. 2023. “Dynamic behavior of RC columns confined with CFRP grid-reinforced ECC subjected to lateral low-velocity impact.” Int. J. Impact Eng. 172: 104402. https://doi.org/10.1016/j.ijimpeng.2022.104402.
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Published In
Journal of Bridge Engineering
Volume 29 • Issue 5 • May 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Jun 21, 2023
Accepted: Jan 2, 2024
Published online: Mar 7, 2024
Published in print: May 1, 2024
Discussion open until: Aug 7, 2024
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