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Abstract <p>In recent years, the application scenarios of cylindrical concrete structures have gradually diversified, such as the piers of high-speed railway bridges and the shafts of tunnels. Although this type of structure has superior load-bearing capacity, various types of damage, such as holes and cracks, may occur during both the pouring and service periods. These damages threaten the safety of the building structure. Therefore, conducting damage detection on cylindrical concrete structures is of great significance.This paper proposes a damage imaging identification method for cylindrical concrete structures based on guided wave tomography technology. This method does not require the analysis of multimodal characteristics when ultrasonic guided waves propagate in cylindrical structures.This paper mainly studies the following: (1) Establishing a simulation model of cylindrical concrete structures; (2) Conducting damage imaging recognition research by comparing three-dimensional cylindrical structures to plate-shaped structures; (3) Using the spectral difference of the signal before and after damage as the damage factor for damage identification; (4) Investigating the problems of damage imaging recognition and location in cylindrical concrete structures through simulations and experiments. After research, the radial errors of damage imaging positioning obtained by the simulation and experiment using the method proposed in this paper are 10.47 and 10.59 mm, respectively. These results are of great significance for the damage detection research of cylindrical concrete structures.</p>

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Research on Damage Imaging Identification of Columnar Concrete Structures Based on Guided Waves

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • Pujun Yuan,
  • Chenhui Su,
  • Weichao Gao,
  • Liandong Xie,
  • Xiuli Sun,
  • Xiaomei Zhao

摘要

Abstract

In recent years, the application scenarios of cylindrical concrete structures have gradually diversified, such as the piers of high-speed railway bridges and the shafts of tunnels. Although this type of structure has superior load-bearing capacity, various types of damage, such as holes and cracks, may occur during both the pouring and service periods. These damages threaten the safety of the building structure. Therefore, conducting damage detection on cylindrical concrete structures is of great significance.This paper proposes a damage imaging identification method for cylindrical concrete structures based on guided wave tomography technology. This method does not require the analysis of multimodal characteristics when ultrasonic guided waves propagate in cylindrical structures.This paper mainly studies the following: (1) Establishing a simulation model of cylindrical concrete structures; (2) Conducting damage imaging recognition research by comparing three-dimensional cylindrical structures to plate-shaped structures; (3) Using the spectral difference of the signal before and after damage as the damage factor for damage identification; (4) Investigating the problems of damage imaging recognition and location in cylindrical concrete structures through simulations and experiments. After research, the radial errors of damage imaging positioning obtained by the simulation and experiment using the method proposed in this paper are 10.47 and 10.59 mm, respectively. These results are of great significance for the damage detection research of cylindrical concrete structures.