Affiliation:
1. Department of Geotechnical Engineering Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education College of Civil Engineering Tongji University Shanghai China
2. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering Hohai University Nanjing China
3. Research Institute of Geotechnical Engineering Hohai University Nanjing China
Abstract
AbstractThis paper investigates the dynamic behavior of an infinite beam on layered transversely isotropic (TI) poroelastic media due to moving harmonic loads. Based on the Euler‒Bernoulli beam theory and Biot theory, the governing equations of the beam and the layered TI poroelastic media are established. By introducing the compatibility conditions at the beam‐subgrade interface, the equivalent stiffness of the layered TI saturated media is derived via the extended precise integration method (PIM) in the wavenumber domain. By means of the inverse Fourier transform algorithm, the physical solutions for the beam‐saturated soil system are obtained after introducing the equivalent stiffness. Then, the accuracy of the proposed method is verified. Several numerical examples are presented to discuss the influences of the moving speed, beam bending rigidity, stratification, and soil anisotropy on the dynamic behavior of beams.
Funder
Fundamental Research Funds for the Central Universities
National Natural Science Foundation of China
Subject
Mechanics of Materials,Geotechnical Engineering and Engineering Geology,General Materials Science,Computational Mechanics
Reference69 articles.
1. The equivalent stiffness of a half‐space interacting with a beam. Critical velocities of a moving load along the beam;Dieterman HA;Eur J Mech A Solids,1996
2. Rails on Elastic Foundations Under the Influence of High-Speed Traveling Loads
3. Vibrations of a beam on elastic foundation;Mathews PM;J Appl Math Mech,1958
4. Response of Continuous Pavements to Moving Dynamic Loads
5. Using the Fourier-series approach to study interactions between moving wheels and a periodically supported rail
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献