Finite element analysis of structure-borne vibration from high-speed train

• Published in: Soil dynamics and earthquake engineering (1984) Vol. 27; no. 3; pp. 259 - 273
• Main Author: Ju, S.H.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.03.2007; Elsevier Science
• Subjects: Bridge; Building; Earth sciences; Earth, ocean, space; Earthquakes, seismology; Engineering and environment geology. Geothermics; Engineering geology; Exact sciences and technology; Finite element method; High-speed train; Internal geophysics; Natural hazards: prediction, damages, etc; Soil; Three-dimensional; Wave propagation; Building; Finite element method; Wave propagation; Three-dimensional; High-speed train; Soil; Bridge; waves; models; extension; foundations; bridges; retaining walls; finite element analysis; resonance; vibration; frequency; propagation; buildings; piles; soils; direction
• ISSN: 0267-7261; 1879-341X
• DOI: 10.1016/j.soildyn.2006.06.006

Finite element analyses were used to investigate the behavior of the building vibration induced by high-speed trains moving on bridges. The model includes the bridge, nearby building, soil and train. Finite element results indicate that trainload frequencies are more important than the natural frequencies of bridges and trains for building vibrations. If the building natural frequencies approach to the trainload frequencies, which equal an integer times the train speed over the compartment length, the resonance occurs and the building vibration will be large. Moreover, the vibration shape is similar to the mode shape of the resonance building frequency. To isolate the building vibration induced by moving trains, this paper investigates three common types of foundations, which include the extension of retaining walls, pile foundation and soil improvement around the building. Soil improvement around the building is the best way to reduce the building vibration both in horizontal and vertical directions.