Abstract
AbstractThis paper presents a numerical model using the boundary element method for determining the hydrodynamic added mass and added damping of an elastic bridge pier with arbitrary cross-section. Combining the Euler–Bernoulli beam theory with the constant boundary element method, the modal superposition method is used to consider the deformable boundary conditions on the surface of elastic piers to couple the interaction between the elastic pier and water, and the equations for the hydrodynamic added mass and added damping of a general section pier considering the effect of pier-water coupling are derived. The accuracy of the developed model is verified by a benchmark experiment. The developed model is calculated for circular piers and compared with the added mass analytical formulation. The effects of oscillating frequency and structure geometry on the added mass and added damping are further investigated. Results demonstrate that the developed model can be used to solve the hydrodynamic added mass and added damping problems of the elastic bridge pier. Compared to the analytical formula, the developed method incorporates the consideration of added damping in the analysis of the pier-water coupling problem. Oscillating frequency and structure geometry have significant effects on added mass and added damping.
Funder
National Natural Science Foundation of China
China Postdoctoral Science Foundation
Natural Science Foundation of Sichuan Province
Publisher
Springer Science and Business Media LLC
Reference43 articles.
1. Bai X (2018) Numerical simulation of wind wave current flows and dynamic performance investigation of bridge tower under wind-wave actions. Harbin Institute of Technology, Harbin
2. Chen X, Mei X (2016) Design of deepwater foundations of main ship channel cable-stayed bridge of Pingtan Straits Rail-cum-Road Bridge. Bridge Constr 46(3):86–91
3. Chen X, Chen Z, Xu G et al (2021) Review of wave forces on bridge decks with experimental and numerical methods. Adv Bridge Eng 2:21–24
4. Choi YR, Hong SY, Choi HS (2001) An analysis of second-order wave forces on floating bodies by using a higher-order boundary element method. Ocean Eng 28(1):117–138
5. Dong S, Jin F (2009) Analysis of self-vibration characteristics in Cangkou navigational bridge of Qingdao Bay Bridge. Highway 9:11–13