Study on Mechanical Characteristics and Durability of Prestressed Anchorage Structure of Rock and Soil under Fatigue-Corrosion Coupling Action
DOI:
https://doi.org/10.13052/ejcm2642-2085.3323Keywords:
Prestressed anchorage structure, Corrosion, Fatigue load, Durability, PFC2DAbstract
This paper presents a comprehensive approach encompassing indoor experiments, theoretical analysis, and numerical simulations to investigate the durability of prestressed anchorage structures subjected to fatigue loads and corrosion. The study addresses the critical issue of gradual aging and damage caused by cumulative loads and corrosion, which ultimately leads to a decrement in structural durability. Through a rigorous analysis of the effects of fatigue load and corrosion on the performance of steel bars, numerical simulations were conducted to elucidate the failure mechanisms and variation patterns within the internal anchoring section. After subjecting steel bars to fatigue and corrosion tests for a defined duration, they were systematically categorized and exposed to varying fatigue tensile cycles in diverse acidic and alkaline environments. Employing the PFC2D program, a numerical model of the prestressed anchorage structure under the coupled effects of fatigue load, corrosion, and fatigue load was developed. This model allowed for a comparative analysis of the evolution of shear stress, axial stress, and displacement fields at the bolt-grout interface under two distinct conditions. The findings reveal the microscopic mechanisms underlying bond degradation at the bolt-grout interface under the synergistic impact of fatigue load and corrosion. The proposed methodology and experimental results demonstrate that geotechnical anchoring technology can effectively reinforce up to 70% of geotechnical structures, significantly reducing soil loss by approximately 80%. This research provides valuable insights into the durability of prestressed anchorage structures, paving the way for future improvements and optimizations.
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XiaoJian, X., GuangTao, X., Jian, Z., and Yu, C. (2024). Static and Dynamic Analysis of Coupled Vibration of Suspension Bridge Structure Under Earthquake Action. European Journal of Computational Mechanics, 32(06), 519–542.
Naeij, M., Ghafarian, D., Ghasemi, H., and Javanmardi, Y. (2023). Experimental and numerical study on the dragged anchor–trenchless rock berm interaction. International Journal of Ocean and Coastal Engineering, 05(01n04).
Mossalam, E., Ahmed, N. M., Souaya, E. M. R., and El-Sabbagh, B. (2020). The influence of binary pozzolanic replacements on the durability and corrosion performance of reinforced concrete. Pigment and Resin Technology, ahead-of-print(ahead-of-print).
Kadhim, M. J., Al-Jadiri, R. S., and Ali, M. A. A. W. (2019). Study the effect of addition nano-tio2 by dispersion method on the some mechanical properties and durability of cement mortar. IOP Conference Series: Materials Science and Engineering, 518(3), 032027 (11pp).
Wang, P., Xu, C., Li, Q., Guo, Y., and Wang, L. (2023). Evaluation on the mechanical, thermal insulation and durability properties of wood recycled ecological concrete. Materialia, 32.
Peng, Y., and Zhou, S. (2024). Mechanical Behavior Analysis of High Strength Concrete Beams in Architectural Design: Simplified Calculation Method of Flexural and Shear Bearing Capacity. European Journal of Computational Mechanics, 32(06), 543–566.
Zhang, N., Wang, H., Wang, S., Wang, S., Guo, Y., and Xun, X. (2023). Experimental study on the evolution law of pore structure and mechanical properties of mudstone under the effect of water rock chemistry. Journal of Porous Media.
Gao, Y., Wang, Y., Lu, T., Li, L., Wu, J., and Zhang, Z. (2021). An experimental study on the mechanical properties of high-temperature granite under natural cooling and water cooling. Advances in Materials Science and Engineering.
Feng, M. U., Zi-Min, C., Yu-Ling, L. I., Xue-Hua, X. U., Xiao-Gang, L. I., and Forestry, C. O. (2019). Study on the biomechanics and fatigue characteristics of single root soil and soil of tree roots in taihang mountain. Journal of Northwest Forestry University.
Apostolopoulos, C. A., and Papadakis, V. G. (2008). Consequences of steel corrosion on the ductility properties of reinforcement bar. Construction and Building Materials, 22(12), 2316–2324.
Bouteldja, M. (2000). Design of cable bolts using numerical modelling.
Xia Ning (2005). Preliminary Study on Mechanical Properties and Durability Evaluation of Rusted Anchor Solids (Doctor dissertation, Nanjing: Hohai University).
Wu Jin, and Wu Shengxing (2005). Durability life assessment of reinforced concrete structures under chloride ion environment Journal of Civil Engineering, 38(2), 59–63.
Li Shibin, Zhang Weiping, Gu Xianglin,&Zhu Cimian (2010). Accelerated fatigue test research on corroded steel bars Journal of Railways, 32(5), 5.
Wang Xianli,&Zheng Jianjun (2009). Experimental study on rust expansion cracking and crack propagation in reinforced concrete structures Journal of Dalian University of Technology, 49(2), 246–253.
Zhu Jie,&Fang Congqi (2013). Extended finite element numerical analysis of rust expansion and cracking in concrete structures Mechanics Quarterly (1), 9.
Xu Gang, Xu Ke, Wang Qing, and Wang Yimin (2012). Simulation analysis of the entire process of rust expansion and cracking in reinforced concrete structures Journal of Building Materials, 15(3), 7.
Zhang, H., Meng, X., and Yang, G. (2020). A study on mechanical properties and damage model of rock subjected to freeze-thaw cycles and confining pressure. Cold Regions Science and Technology, 103056.
Damijan, Z., Peitang, W., and Nikola, V. (2024). The effect of gear-manufacturing quality on the mechanical and thermal responses of a polymer-gear pair. Journal of Computational Design and Engineering.
Zhang, J., Li, M., Lin, G., and Di, K. (2021). Study on dynamic mechanical properties and failure mechanism of sandstones under real-time high temperature.
Michailidis, N., Stergioudi, F., Ragousis, A., Lopez-, H., and Castaneda. (2019). A study on corrosion-fatigue behavior of aa7075-t651 subjected to different surface modification treatments. Fatigue and Fracture of Engineering Materials and Structures.
Bermeo-Campos, R., Madrigal-Carrillo, K., Perez-Figueroa, S. E., Calvino, M., Trejo, A., and Salazar, F., et al. (2023). Surface morphology effects on the mechanical and electronic properties of halogenated porous 3c-sic: a dft study. Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials (Sep.15), 631.
Huang, L., Du, Y., Qi, H. H., and Wang, Y. (2023). Mechanical properties and constitutive model of filling medium in hot casting socket at elevated temperatures. Construction and Building Materials (Dec.8), 408.
Gibalenko, O., Gibalenko, V., and Bocharova, O. (2020). Anticorrosive protection of structures in robust design. MatSciRN: Localized Corrosion (Topic).
Hailin, W., Linhai, L. U., Guofu, W., and Hong, S. (2019). Study on microstructure and fractal features of shallow ground in jinan. Yellow River.
Yingzi, H., and Ruilin, L. (2019). Study on the effect of recycled aggregate on mechanical properties and durability of concrete. Cement Engineering.
Zhifang, M., Shihao, Z., and Xiaoguang, G. (2024). Analysis on Shear Resistance of Joint and Structural Mechanical Response of Assembled Composite Beam Joints. European Journal of Computational Mechanics, 32(06), 589–608.
Yayuan, H. U. (2018). Effect of double-variable coupling on the fluctuating characteristics of unsaturated rock and soil. Journal of Vibration and Shock.
Boga, A. R., and Senol, A. F. (2023). The effect of waste marble and basalt aggregates on the fresh and hardened properties of high strength self-compacting concrete. Construction and Building Materials (Jan.11), 363.
Shangguan, M., Xie, Y., Wang, F., Long, G., Tang, Z., and Chen, Y., et al. (2023). Effect of low-vacuum environment on the strength and permeability of cement-based materials. Construction and Building Materials (Oct.12), 400.
