Influence of Long-term Climate on Fatigue Life of Bridge Pier Concrete and a Reinforcement Method

Authors

  • Nam-Hyok Ri Tianjin University
  • Kum-Hyok So Faculty of Mechanics Engineering, Kim Il Sung University, Pyongyang, DPR of Korea
  • Yong-Sop Ri Faculty of Mechanics Engineering, Kim Il Sung University, Pyongyang, DPR of Korea
  • Zhiyao Ma School of Architecture, Tianjin University, Tianjin, 300072, China
  • Yong-Ae Kim Faculty of Mechanics Engineering, Kim Il Sung University, Pyongyang, DPR of Korea
  • Hui-Gwang Yun Department of Resources Exploration Engineering, Kim Chaek University of technology, Pyongyang, DPR of Korea

DOI:

https://doi.org/10.30564/hsme.v1i1.1009

Abstract

This paper quantitatively evaluated the fatigue life of concrete around the air-water boundary layer of bridge piers located in inland rivers, considering the long-term climate. The paper suggests a method to predict the low-cycle fatigue life by demonstrating a thermal-fluid-structural analysis of bridge pier concrete according to long-term climate such as temperature, velocity and pressure of air and water in the process of freezing and thawing in winter. In addition, it proposes a reinforcing method to increase the life of damaged piers and proves the feasibility of the proposed method with numerical comparison experiment.

Keywords:

Hydraulic concrete; Bridge pier; Concrete depression failure; Scour phenomenon; Low-cycle fatigue life; Long-term climate; Thermal-structural analysis; Fluid-structural analysis; ANSYS

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Vol. 1 , Iss. 1 (April 2019)

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Articles

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