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

• 作者: Hui-Gwang Yun Kum-Hyok So Nam-Hyok Ri Yong-Ae Kim Yong-Sop Ri Zhiyao Ma
• 来源期刊: 水利科学与海洋工程(英文)
• 学科: 工学
• 关键词: Hydraulic CONCRETE Bridge PIER CONCRETE depression failure Scour phenomenon Low-cycle fatigue life LONG-TERM CLIMATE Thermal-structural ANALYSIS Fluid-structural ANALYSIS ANSYS
• 年，卷（期）: 2019,（1）
• 页码范围: 2-8
• 页数: 7页
• 分类号: TU5

摘要

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.