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

Updated time: 2019-04-03

【Summary】 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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